blob: 07121230dc73e1eaed79603c066be07285ccb38f [file] [log] [blame]
/*************************************************************************
*
* File Name (api_all_headers.idl)
*
* IAccessible2 IDL Specification
*
* Copyright (c) 2013 Linux Foundation
* All rights reserved.
*
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* 3. Neither the name of the Linux Foundation nor the names of its
* contributors may be used to endorse or promote products
* derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This BSD License conforms to the Open Source Initiative "Simplified
* BSD License" as published at:
* http://www.opensource.org/licenses/bsd-license.php
*
* IAccessible2 is a trademark of the Linux Foundation. The IAccessible2
* mark may be used in accordance with the Linux Foundation Trademark
* Policy to indicate compliance with the IAccessible2 specification.
*
************************************************************************/
import "objidl.idl";
import "oaidl.idl";
import "oleacc.idl";
/*************************************************************************
*
* File Name (IA2CommonTypes.idl)
*
* IAccessible2 IDL Specification
*
* Copyright (c) 2007, 2010 Linux Foundation
* Copyright (c) 2006 IBM Corporation
* Copyright (c) 2000, 2006 Sun Microsystems, Inc.
* All rights reserved.
*
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* 3. Neither the name of the Linux Foundation nor the names of its
* contributors may be used to endorse or promote products
* derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This BSD License conforms to the Open Source Initiative "Simplified
* BSD License" as published at:
* http://www.opensource.org/licenses/bsd-license.php
*
* IAccessible2 is a trademark of the Linux Foundation. The IAccessible2
* mark may be used in accordance with the Linux Foundation Trademark
* Policy to indicate compliance with the IAccessible2 specification.
*
************************************************************************/
/** These constants control the scrolling of an object or substring into a window.
This enum is used in IAccessible2::scrollTo and IAccessibleText::scrollSubstringTo.
*/
enum IA2ScrollType {
/** Scroll the top left corner of the object or substring such that the top left
corner (and as much as possible of the rest of the object or substring) is within
the top level window. In cases where the entire object or substring fits within
the top level window, the placement of the object or substring is dependent on
the application. For example, the object or substring may be scrolled to the
closest edge, the furthest edge, or midway between those two edges. In cases
where there is a hierarchy of nested scrollable controls, more than one control
may have to be scrolled.
*/
IA2_SCROLL_TYPE_TOP_LEFT,
/** Scroll the bottom right corner of the object or substring such that the bottom right
corner (and as much as possible of the rest of the object or substring) is within
the top level window. In cases where the entire object or substring fits within
the top level window, the placement of the object or substring is dependent on
the application. For example, the object or substring may be scrolled to the
closest edge, the furthest edge, or midway between those two edges. In cases
where there is a hierarchy of nested scrollable controls, more than one control
may have to be scrolled.
*/
IA2_SCROLL_TYPE_BOTTOM_RIGHT,
/** Scroll the top edge of the object or substring such that the top edge
(and as much as possible of the rest of the object or substring) is within the
top level window. In cases where the entire object or substring fits within
the top level window, the placement of the object or substring is dependent on
the application. For example, the object or substring may be scrolled to the
closest edge, the furthest edge, or midway between those two edges. In cases
where there is a hierarchy of nested scrollable controls, more than one control
may have to be scrolled.
*/
IA2_SCROLL_TYPE_TOP_EDGE,
/** Scroll the bottom edge of the object or substring such that the bottom edge
(and as much as possible of the rest of the object or substring) is within the
top level window. In cases where the entire object or substring fits within
the top level window, the placement of the object or substring is dependent on
the application. For example, the object or substring may be scrolled to the
closest edge, the furthest edge, or midway between those two edges. In cases
where there is a hierarchy of nested scrollable controls, more than one control
may have to be scrolled.
*/
IA2_SCROLL_TYPE_BOTTOM_EDGE,
/** Scroll the left edge of the object or substring such that the left edge
(and as much as possible of the rest of the object or substring) is within the
top level window. In cases where the entire object or substring fits within
the top level window, the placement of the object or substring is dependent on
the application. For example, the object or substring may be scrolled to the
closest edge, the furthest edge, or midway between those two edges. In cases
where there is a hierarchy of nested scrollable controls, more than one control
may have to be scrolled.
*/
IA2_SCROLL_TYPE_LEFT_EDGE,
/** Scroll the right edge of the object or substring such that the right edge
(and as much as possible of the rest of the object or substring) is within the
top level window. In cases where the entire object or substring fits within
the top level window, the placement of the object or substring is dependent on
the application. For example, the object or substring may be scrolled to the
closest edge, the furthest edge, or midway between those two edges. In cases
where there is a hierarchy of nested scrollable controls, more than one control
may have to be scrolled.
*/
IA2_SCROLL_TYPE_RIGHT_EDGE,
/** Scroll the object or substring such that as much as possible of the
object or substring is within the top level window. The placement of
the object is dependent on the application. For example, the object or
substring may be scrolled to to closest edge, the furthest edge, or midway
between those two edges.
*/
IA2_SCROLL_TYPE_ANYWHERE
};
/** These constants define which coordinate system a point is located in.
This enum is used in IAccessible2::scrollToPoint, IAccessibleImage::imagePosition,
IAccessibleText::characterExtents, and IAccessibleText::offsetAtPoint, and
IAccessibleText::scrollSubstringToPoint.
*/
enum IA2CoordinateType {
/// The coordinates are relative to the screen.
IA2_COORDTYPE_SCREEN_RELATIVE,
/** The coordinates are relative to the upper left corner of the bounding box
of the immediate parent.
*/
IA2_COORDTYPE_PARENT_RELATIVE
};
/** Special offsets for use in IAccessibleText and IAccessibleEditableText methods
Refer to @ref _specialOffsets
"Special Offsets for use in the IAccessibleText and IAccessibleEditableText Methods"
for more information.
*/
enum IA2TextSpecialOffsets {
IA2_TEXT_OFFSET_LENGTH = -1, /**< This offset is equivalent to the length of the string. It eliminates
the need to call IAccessibleText::nCharacters. */
IA2_TEXT_OFFSET_CARET = -2 /**< This offset signifies that the text related to the physical location
of the caret should be used. */
};
/** These constants specify the kind of change made to a table.
This enum is used in the IA2TableModelChange struct which in turn is used by
IAccessibleTable::modelChange and IAccessibleTable2::modelChange.
*/
enum IA2TableModelChangeType {
IA2_TABLE_MODEL_CHANGE_INSERT, // = 0;
IA2_TABLE_MODEL_CHANGE_DELETE,
IA2_TABLE_MODEL_CHANGE_UPDATE
};
/** A structure defining the type of and extents of changes made to a table
IAccessibleTable::modelChange and IAccessibleTable2::modelChange return this struct.
In the case of an insertion or change the row and column offsets define the boundaries
of the inserted or changed subtable after the operation. In the case of a deletion
the row and column offsets define the boundaries of the subtable being removed before
the removal.
*/
typedef struct IA2TableModelChange {
enum IA2TableModelChangeType type; // insert, delete, update
long firstRow; ///< 0 based, inclusive
long lastRow; ///< 0 based, inclusive
long firstColumn; ///< 0 based, inclusive
long lastColumn; ///< 0 based, inclusive
} IA2TableModelChange;
/*************************************************************************
*
* File Name (AccessibleRelation.idl)
*
* IAccessible2 IDL Specification
*
* Copyright (c) 2007, 2013 Linux Foundation
* Copyright (c) 2006 IBM Corporation
* Copyright (c) 2000, 2006 Sun Microsystems, Inc.
* All rights reserved.
*
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* 3. Neither the name of the Linux Foundation nor the names of its
* contributors may be used to endorse or promote products
* derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This BSD License conforms to the Open Source Initiative "Simplified
* BSD License" as published at:
* http://www.opensource.org/licenses/bsd-license.php
*
* IAccessible2 is a trademark of the Linux Foundation. The IAccessible2
* mark may be used in accordance with the Linux Foundation Trademark
* Policy to indicate compliance with the IAccessible2 specification.
*
************************************************************************/
/** @defgroup grpRelations Relations
Use the following constants to compare against the BSTRs returned by
IAccessibleRelation::relationType.
*/
///@{
/** The target object is the containing application object. */
const WCHAR *const IA2_RELATION_CONTAINING_APPLICATION = L"containingApplication";
/** The target object is the containing document object. The target object implements
the IAccessibleDocument interface.
*/
const WCHAR *const IA2_RELATION_CONTAINING_DOCUMENT = L"containingDocument";
/** The target object is the containing tab pane object. */
const WCHAR *const IA2_RELATION_CONTAINING_TAB_PANE = L"containingTabPane";
/** The target object is the containing window object. */
const WCHAR *const IA2_RELATION_CONTAINING_WINDOW = L"containingWindow";
/** Some attribute of this object is affected by a target object. */
const WCHAR *const IA2_RELATION_CONTROLLED_BY = L"controlledBy";
/** This object is interactive and controls some attribute of a target object. */
const WCHAR *const IA2_RELATION_CONTROLLER_FOR = L"controllerFor";
/** This object is described by the target object. */
const WCHAR *const IA2_RELATION_DESCRIBED_BY = L"describedBy";
/** This object is describes the target object. */
const WCHAR *const IA2_RELATION_DESCRIPTION_FOR = L"descriptionFor";
/** This object is embedded by a target object. */
const WCHAR *const IA2_RELATION_EMBEDDED_BY = L"embeddedBy";
/** This object embeds a target object. This relation can be used on the
OBJID_CLIENT accessible for a top level window to show where the content
areas are.
*/
const WCHAR *const IA2_RELATION_EMBEDS = L"embeds";
/** Content flows to this object from a target object.
This relation and IA2_RELATION_FLOWS_TO are useful to tie text and non-text
objects together in order to allow assistive technology to follow the
intended reading order.
*/
const WCHAR *const IA2_RELATION_FLOWS_FROM = L"flowsFrom";
/** Content flows from this object to a target object. */
const WCHAR *const IA2_RELATION_FLOWS_TO = L"flowsTo";
/** This object is label for a target object. */
const WCHAR *const IA2_RELATION_LABEL_FOR = L"labelFor";
/** This object is labelled by a target object. Note that the double L spelling
which follows is preferred. Please use it instead. This single L version may
be removed in a later version.
*/
const WCHAR *const IA2_RELATION_LABELED_BY = L"labelledBy";
/** This object is labelled by a target object. */
const WCHAR *const IA2_RELATION_LABELLED_BY = L"labelledBy";
/** This object is a member of a group of one or more objects. When
there is more than one object in the group each member may have one and the
same target, e.g. a grouping object. It is also possible that each member has
multiple additional targets, e.g. one for every other member in the group.
*/
const WCHAR *const IA2_RELATION_MEMBER_OF = L"memberOf";
/** The target object is the next object in the tab order. */
const WCHAR *const IA2_RELATION_NEXT_TABBABLE = L"nextTabbable";
/** This object is a logical child of a target object. This relation is the reciprocal
of the IA2_RELATION_NODE_PARENT_OF relation. In some cases an application's accessible
tree is such that objects can be in a logical parent-child relationship which is
different from the hierarchy of the accessible tree. */
const WCHAR *const IA2_RELATION_NODE_CHILD_OF = L"nodeChildOf";
/** This object is a logical parent of a target object. This relation is the reciprocal
of the IA2_RELATION_NODE_CHILD_OF relation. In some cases an application's accessible
tree is such that objects can be in a logical parent-child relationship which is
different from the hierarchy of the accessible tree. */
const WCHAR *const IA2_RELATION_NODE_PARENT_OF = L"nodeParentOf";
/** This object is a parent window of the target object. */
const WCHAR *const IA2_RELATION_PARENT_WINDOW_OF = L"parentWindowOf";
/** This object is a transient component related to the target object.
When this object is activated the target object doesn't lose focus.
*/
const WCHAR *const IA2_RELATION_POPUP_FOR = L"popupFor";
/** The target object is the previous object in the tab order. */
const WCHAR *const IA2_RELATION_PREVIOUS_TABBABLE = L"previousTabbable";
/** This object is a sub window of a target object. */
const WCHAR *const IA2_RELATION_SUBWINDOW_OF = L"subwindowOf";
/** The target object provides the detailed, extended description for this
object. It provides more detailed information than would normally be provided
using the IA2_RELATION_DESCRIBED_BY relation. A common use for this relation is
in digital publishing where an extended description needs to be conveyed in
a book that requires structural markup or the embedding of other technology to
provide illustrative content. */
const WCHAR *const IA2_RELATION_DETAILS = L"details";
/** This object provides the detailed, extended description for the target
object. See IA2_RELATION_DETAILS. */
const WCHAR *const IA2_RELATION_DETAILS_FOR = L"detailsFor";
/** The target object is the error message for this object. */
const WCHAR *const IA2_RELATION_ERROR = L"error";
/** This object is the error message for the target object. */
const WCHAR *const IA2_RELATION_ERROR_FOR = L"errorFor";
///@}
/** This interface gives access to an object's set of relations.
*/
[object, uuid(7CDF86EE-C3DA-496a-BDA4-281B336E1FDC)]
interface IAccessibleRelation : IUnknown
{
/** @brief Returns the type of the relation.
@param [out] relationType
The strings returned are defined @ref grpRelations "in this section of the documentation".
@retval S_OK
*/
[propget] HRESULT relationType
(
[out, retval] BSTR *relationType
);
/** @brief Returns a localized version of the relation type.
@param [out] localizedRelationType
@retval S_OK
*/
[propget] HRESULT localizedRelationType
(
[out, retval] BSTR *localizedRelationType
);
/** @brief Returns the number of targets for this relation.
@param [out] nTargets
@retval S_OK
*/
[propget] HRESULT nTargets
(
[out, retval] long *nTargets
);
/** @brief Returns one accessible relation target.
@param [in] targetIndex
0 based index
@param [out] target
@retval S_OK
@retval E_INVALIDARG if bad [in] passed
@note Use QueryInterface to get IAccessible2.
*/
[propget] HRESULT target
(
[in] long targetIndex,
[out, retval] IUnknown **target
);
/** @brief Returns multiple accessible relation targets
@param [in] maxTargets
maximum size of the array allocated by the client
@param [out] targets
The array of target objects. Note that this array is to be allocated by the
client and freed when no longer needed. Refer to @ref _arrayConsideration
"Special Consideration when using Arrays" for more details. You will need to use
QueryInterface on the IUnknown to get the IAccessible2.
@param [out] nTargets
actual number of targets in the returned array (not more than maxTargets)
@retval S_OK
@retval E_INVALIDARG if bad [in] passed, e.g. a negative value
*/
[propget] HRESULT targets
(
[in] long maxTargets,
[out, size_is(maxTargets), length_is(*nTargets)]
IUnknown **targets,
[out, retval] long *nTargets
);
}
/*************************************************************************
*
* File Name (AccessibleAction.idl)
*
* IAccessible2 IDL Specification
*
* Copyright (c) 2007, 2013 Linux Foundation
* Copyright (c) 2006 IBM Corporation
* Copyright (c) 2000, 2006 Sun Microsystems, Inc.
* All rights reserved.
*
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* 3. Neither the name of the Linux Foundation nor the names of its
* contributors may be used to endorse or promote products
* derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This BSD License conforms to the Open Source Initiative "Simplified
* BSD License" as published at:
* http://www.opensource.org/licenses/bsd-license.php
*
* IAccessible2 is a trademark of the Linux Foundation. The IAccessible2
* mark may be used in accordance with the Linux Foundation Trademark
* Policy to indicate compliance with the IAccessible2 specification.
*
************************************************************************/
/** This enum defines values which are predefined actions for use when implementing
support for media.
This enum is used when specifying an action for IAccessibleAction::doAction.
*/
enum IA2Actions {
IA2_ACTION_OPEN = -1, /**< Used to inform the server that the client will
signal via IA2_ACTION_COMPLETE when it has consumed
the content provided by the object. This action
allows the object's server to wait for all clients
to signal their readiness for additional content.
Any form of content generation that requires
synchronization with an AT would require use of this
action. One example is the generation of text describing
visual content not obvious from a video's sound track.
In this scenario the Text to Speech or Braille output
may take more time than the related length of silence
in the video's sound track. */
IA2_ACTION_COMPLETE = -2, /**< Used by the client to inform the server that it has
consumed the most recent content provided by this object. */
IA2_ACTION_CLOSE = -3 /**< Used to inform the server that the client no longer
requires synchronization. */
};
/** @brief This interface gives access to actions that can be executed
for accessible objects.
Every accessible object that can be manipulated via the native GUI beyond the
methods available either in the MSAA IAccessible interface or in the set of
IAccessible2 interfaces (other than this IAccessibleAction interface) should
support the IAccessibleAction interface in order to provide Assistive Technology
access to all the actions that can be performed by the object. Each action can
be performed or queried for a name, description or associated key bindings.
Actions are needed more for ATs that assist the mobility impaired, such as
on-screen keyboards and voice command software. By providing actions directly,
the AT can present them to the user without the user having to perform the extra
steps to navigate a context menu.
The first action should be equivalent to the MSAA default action. If there is
only one action, %IAccessibleAction should also be implemented.
*/
[object, uuid(B70D9F59-3B5A-4dba-AB9E-22012F607DF5)]
interface IAccessibleAction : IUnknown
{
/** @brief Returns the number of accessible actions available in this object.
If there are more than one, the first one is considered the
"default" action of the object.
@param [out] nActions
The returned value of the number of actions is zero if there are
no actions.
@retval S_OK
@note This method is missing a [propget] prefix in the IDL. The result is the
method is named nActions in generated C++ code instead of get_nActions.
*/
HRESULT nActions
(
[out,retval] long* nActions
);
/** @brief Performs the specified Action on the object.
@param [in] actionIndex
0 based index specifying the action to perform. If it lies outside
the valid range no action is performed.
@retval S_OK
@retval S_FALSE if action could not be performed
@retval E_INVALIDARG if bad [in] passed
@note If implementing support for media, refer to the predefined constants in the ::IA2Actions enum.
*/
HRESULT doAction
(
[in] long actionIndex
);
/** @brief Returns a description of the specified action of the object.
@param [in] actionIndex
0 based index specifying which action's description to return.
If it lies outside the valid range an empty string is returned.
@param [out] description
The returned value is a localized string of the specified action.
@retval S_OK
@retval S_FALSE if there is nothing to return, [out] value is NULL
@retval E_INVALIDARG if bad [in] passed
*/
[propget] HRESULT description
(
[in] long actionIndex,
[out, retval] BSTR *description
);
/** @brief Returns an array of BSTRs describing one or more key bindings, if
there are any, associated with the specified action.
The returned strings are the localized human readable key sequences to be
used to activate each action, e.g. "Ctrl+Shift+D". Since these key
sequences are to be used when the object has focus, they are like
mnemonics (access keys), and not like shortcut (accelerator) keys.
There is no need to implement this method for single action controls since
that would be redundant with the standard MSAA programming practice of
getting the mnemonic from get_accKeyboardShortcut.
An AT such as an On Screen Keyboard might not expose these bindings but
provide alternative means of activation.
Note: the client allocates and passes in an array of pointers. The server
allocates the BSTRs and passes back one or more pointers to these BSTRs into
the array of pointers allocated by the client. The client is responsible
for deallocating the BSTRs.
@param [in] actionIndex
0 based index specifying which action's key bindings should be returned.
@param [in] nMaxBindings
This parameter is ignored. Refer to @ref _arrayConsideration
"Special Consideration when using Arrays" for more details.
@param [out] keyBindings
An array of BSTRs, allocated by the server, one for each key binding.
The client must free it with CoTaskMemFree.
@param [out] nBindings
The number of key bindings returned; the size of the returned array.
@retval S_OK
@retval S_FALSE if there are no key bindings, [out] values are NULL and 0 respectively
@retval E_INVALIDARG if bad [in] passed
*/
[propget] HRESULT keyBinding
(
[in] long actionIndex,
[in] long nMaxBindings,
[out, size_is(,nMaxBindings), length_is(,*nBindings)] BSTR **keyBindings,
[out, retval] long *nBindings
);
/** @brief Returns the non-localized name of specified action.
@param [in] actionIndex
0 based index specifying which action's non-localized name should be returned.
@param [out] name
@retval S_OK
@retval S_FALSE if there is nothing to return, [out] value is NULL
@retval E_INVALIDARG if bad [in] passed
*/
[propget] HRESULT name
(
[in] long actionIndex,
[out, retval] BSTR *name
);
/** @brief Returns the localized name of specified action.
@param [in] actionIndex
0 based index specifying which action's localized name should be returned.
@param [out] localizedName
@retval S_OK
@retval S_FALSE if there is nothing to return, [out] value is NULL
@retval E_INVALIDARG if bad [in] passed
*/
[propget] HRESULT localizedName
(
[in] long actionIndex,
[out, retval] BSTR *localizedName
);
}
/*************************************************************************
*
* File Name (AccessibleRole.idl)
*
* IAccessible2 IDL Specification
*
* Copyright (c) 2007-2018 Linux Foundation
* Copyright (c) 2006 IBM Corporation
* Copyright (c) 2000, 2006 Sun Microsystems, Inc.
* All rights reserved.
*
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* 3. Neither the name of the Linux Foundation nor the names of its
* contributors may be used to endorse or promote products
* derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This BSD License conforms to the Open Source Initiative "Simplified
* BSD License" as published at:
* http://www.opensource.org/licenses/bsd-license.php
*
* IAccessible2 is a trademark of the Linux Foundation. The IAccessible2
* mark may be used in accordance with the Linux Foundation Trademark
* Policy to indicate compliance with the IAccessible2 specification.
*
************************************************************************/
/** Collection of roles
This enumerator defines an extended set of accessible roles of objects implementing
the %IAccessible2 interface. These roles are in addition to the MSAA roles obtained
through the MSAA get_accRole method. Examples are 'footnote', 'heading', and
'label'. You obtain an object's %IAccessible2 roles by calling IAccessible2::role.
*/
enum IA2Role {
/** Unknown role. The object contains some Accessible information, but its
role is not known.
*/
IA2_ROLE_UNKNOWN = 0,
/** An object that can be drawn into and to manage events from the objects
drawn into it. Also refer to ::IA2_ROLE_FRAME,
::IA2_ROLE_GLASS_PANE, and ::IA2_ROLE_LAYERED_PANE.
*/
IA2_ROLE_CANVAS = 0x401,
/// A caption describing another object.
IA2_ROLE_CAPTION,
/// Used for check buttons that are menu items.
IA2_ROLE_CHECK_MENU_ITEM,
/// A specialized dialog that lets the user choose a color.
IA2_ROLE_COLOR_CHOOSER,
/// A date editor.
IA2_ROLE_DATE_EDITOR,
/** An iconified internal frame in an ::IA2_ROLE_DESKTOP_PANE.
Also refer to ::IA2_ROLE_INTERNAL_FRAME.
*/
IA2_ROLE_DESKTOP_ICON,
/** A desktop pane. A pane that supports internal frames and iconified
versions of those internal frames. Also refer to ::IA2_ROLE_INTERNAL_FRAME.
*/
IA2_ROLE_DESKTOP_PANE,
/** A directory pane. A pane that allows the user to navigate through
and select the contents of a directory. May be used by a file chooser.
Also refer to ::IA2_ROLE_FILE_CHOOSER.
*/
IA2_ROLE_DIRECTORY_PANE,
/** An editable text object in a toolbar. <b>Deprecated.</b>
The edit bar role was meant for a text area in a tool bar. However, to detect
a text area in a tool bar the AT can query the parent.
*/
IA2_ROLE_EDITBAR,
/// Embedded (OLE) object.
IA2_ROLE_EMBEDDED_OBJECT,
/// Text that is used as an endnote (footnote at the end of a chapter or section).
IA2_ROLE_ENDNOTE,
/** A file chooser. A specialized dialog that displays the files in the
directory and lets the user select a file, browse a different directory,
or specify a filename. May use the directory pane to show the contents of
a directory.
Also refer to ::IA2_ROLE_DIRECTORY_PANE.
*/
IA2_ROLE_FILE_CHOOSER,
/** A font chooser. A font chooser is a component that lets the user pick
various attributes for fonts.
*/
IA2_ROLE_FONT_CHOOSER,
/** Footer of a document page.
Also refer to ::IA2_ROLE_HEADER.
*/
IA2_ROLE_FOOTER,
/// Text that is used as a footnote. Also refer to ::IA2_ROLE_ENDNOTE.
IA2_ROLE_FOOTNOTE,
/** A container of form controls. An example of the use of this role is to
represent an HTML FORM tag.
*/
IA2_ROLE_FORM,
/** Frame role. A top level window with a title bar, border, menu bar, etc.
It is often used as the primary window for an application. Also refer to
::IA2_ROLE_CANVAS and the MSAA roles of dialog and window.
*/
IA2_ROLE_FRAME,
/** A glass pane. A pane that is guaranteed to be painted on top of all panes
beneath it. Also refer to ::IA2_ROLE_CANVAS, ::IA2_ROLE_INTERNAL_FRAME, and
::IA2_ROLE_ROOT_PANE.
*/
IA2_ROLE_GLASS_PANE,
/** Header of a document page.
Also refer to ::IA2_ROLE_FOOTER.
*/
IA2_ROLE_HEADER,
/// Heading. Use the IAccessible2::attributes level attribute to determine the heading level.
IA2_ROLE_HEADING,
/// A small fixed size picture, typically used to decorate components.
IA2_ROLE_ICON,
/** An image map object. Usually a graphic with multiple hotspots, where
each hotspot can be activated resulting in the loading of another document
or section of a document.
*/
IA2_ROLE_IMAGE_MAP,
/** An object which is used to allow input of characters not found on a keyboard,
such as the input of Chinese characters on a Western keyboard.
*/
IA2_ROLE_INPUT_METHOD_WINDOW,
/** An internal frame. A frame-like object that is clipped by a desktop pane.
The desktop pane, internal frame, and desktop icon objects are often used to
create multiple document interfaces within an application.
Also refer to ::IA2_ROLE_DESKTOP_ICON, ::IA2_ROLE_DESKTOP_PANE, and ::IA2_ROLE_FRAME.
*/
IA2_ROLE_INTERNAL_FRAME,
/// An object used to present an icon or short string in an interface.
IA2_ROLE_LABEL,
/** A layered pane. A specialized pane that allows its children to be drawn
in layers, providing a form of stacking order. This is usually the pane that
holds the menu bar as well as the pane that contains most of the visual
components in a window.
Also refer to ::IA2_ROLE_CANVAS, ::IA2_ROLE_GLASS_PANE, and ::IA2_ROLE_ROOT_PANE.
*/
IA2_ROLE_LAYERED_PANE,
/** A section whose content is parenthetic or ancillary to the main content
of the resource.
*/
IA2_ROLE_NOTE,
/** A specialized pane whose primary use is inside a dialog.
Also refer to MSAA's dialog role.
*/
IA2_ROLE_OPTION_PANE,
/** An object representing a page of document content. It is used in documents
which are accessed by the user on a page by page basis.
*/
IA2_ROLE_PAGE,
/// A paragraph of text.
IA2_ROLE_PARAGRAPH,
/** A radio button that is a menu item.
Also refer to MSAA's button and menu item roles.
*/
IA2_ROLE_RADIO_MENU_ITEM,
/** An object which is redundant with another object in the accessible hierarchy.
ATs typically ignore objects with this role.
*/
IA2_ROLE_REDUNDANT_OBJECT,
/** A root pane. A specialized pane that has a glass pane and a layered pane
as its children.
Also refer to ::IA2_ROLE_GLASS_PANE and ::IA2_ROLE_LAYERED_PANE
*/
IA2_ROLE_ROOT_PANE,
/** A ruler such as those used in word processors.
*/
IA2_ROLE_RULER,
/** A scroll pane. An object that allows a user to incrementally view a large
amount of information. Its children can include scroll bars and a viewport.
Also refer to ::IA2_ROLE_VIEW_PORT and MSAA's scroll bar role.
*/
IA2_ROLE_SCROLL_PANE,
/** A container of document content. An example of the use of this role is to
represent an HTML DIV tag. A section may be used as a region. A region is a
group of elements that together form a perceivable unit. A region does not
necessarily follow the logical structure of the content, but follows the
perceivable structure of the page. A region may have an attribute in the set
of IAccessible2::attributes which indicates that it is "live". A live region
is content that is likely to change in response to a timed change, a user
event, or some other programmed logic or event.
*/
IA2_ROLE_SECTION,
/// Object with graphical representation used to represent content on draw pages.
IA2_ROLE_SHAPE,
/** A split pane. A specialized panel that presents two other panels at the
same time. Between the two panels is a divider the user can manipulate to make
one panel larger and the other panel smaller.
*/
IA2_ROLE_SPLIT_PANE,
/** An object that forms part of a menu system but which can be "undocked"
from or "torn off" the menu system to exist as a separate window.
*/
IA2_ROLE_TEAR_OFF_MENU,
/// An object used as a terminal emulator.
IA2_ROLE_TERMINAL,
/// Collection of objects that constitute a logical text entity.
IA2_ROLE_TEXT_FRAME,
/** A toggle button. A specialized push button that can be checked or unchecked,
but does not provide a separate indicator for the current state.
Also refer to MSAA's roles of push button, check box, and radio button.
<BR><B>Note:</B> IA2_ROLE_TOGGLE_BUTTON should not be used. Instead, use MSAA's
ROLE_SYSTEM_PUSHBUTTON and STATE_SYSTEM_PRESSED.
*/
IA2_ROLE_TOGGLE_BUTTON,
/** A viewport. An object usually used in a scroll pane. It represents the
portion of the entire data that the user can see. As the user manipulates
the scroll bars, the contents of the viewport can change.
Also refer to ::IA2_ROLE_SCROLL_PANE.
*/
IA2_ROLE_VIEW_PORT,
/** An object containing content which is complementary to the main content of
a document, but remains meaningful when separated from the main content. There
are various types of content that would appropriately have this role. For example,
in the case where content is delivered via a web portal to a web browser, this may
include but not be limited to show times, current weather, related articles, or
stocks to watch. The complementary role indicates that contained content is relevant
to the main content. If the complementary content is completely separable main
content, it may be appropriate to use a more general role.
*/
IA2_ROLE_COMPLEMENTARY_CONTENT,
/** An object representing a navigational landmark, a region on a page to
which the user may want quick access, such as a navigation area, a search
facility or the main content of a page.
*/
IA2_ROLE_LANDMARK,
/**
* A bar that serves as a level indicator to, for instance, show
* the strength of a password or the charge of a battery.
*/
IA2_ROLE_LEVEL_BAR,
/** Content previously deleted or proposed for deletion, e.g. in revision
history or a content view providing suggestions from reviewers.
*/
IA2_ROLE_CONTENT_DELETION,
/** Content previously inserted or proposed for insertion, e.g. in revision
history or a content view providing suggestions from reviewers.
*/
IA2_ROLE_CONTENT_INSERTION,
/// A section of content that is quoted from another source.
IA2_ROLE_BLOCK_QUOTE
};
/*************************************************************************
*
* File Name (AccessibleStates.idl)
*
* IAccessible2 IDL Specification
*
* Copyright (c) 2007, 2010 Linux Foundation
* Copyright (c) 2006 IBM Corporation
* Copyright (c) 2000, 2006 Sun Microsystems, Inc.
* All rights reserved.
*
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* 3. Neither the name of the Linux Foundation nor the names of its
* contributors may be used to endorse or promote products
* derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This BSD License conforms to the Open Source Initiative "Simplified
* BSD License" as published at:
* http://www.opensource.org/licenses/bsd-license.php
*
* IAccessible2 is a trademark of the Linux Foundation. The IAccessible2
* mark may be used in accordance with the Linux Foundation Trademark
* Policy to indicate compliance with the IAccessible2 specification.
*
************************************************************************/
typedef long AccessibleStates;
/** %IAccessible2 specific state bit constants
This enum defines the state bits returned by IAccessible2::states. The
%IAccessible2 state bits are in addition to those returned by MSAA.
*/
enum IA2States {
/** Indicates a window is currently the active window, or is an active subelement
within a container or table.
This state can be used to indicate the current active item in a container, even
if the container itself is not currently active. In other words this would indicate
the item that will get focus if you tab to the container.
This information is important for knowing what to report for trees and potentially
other containers in a virtual buffer.
Also, see ::IA2_STATE_MANAGES_DESCENDANTS for more information.
*/
IA2_STATE_ACTIVE = 0x1,
/** Indicates that the object is armed.
Used to indicate that the control is "pressed" and will be invoked when the
actuator, e.g. a mouse button, is "released". An AT which either monitors the
mouse or synthesizes mouse events might need to know that, and possibly a talking
interface would even let the user know about it. It could also potentially be
useful to on screen keyboards or test tools since the information does indicate
something about the state of the interface, for example, code operating asynchronously
might need to wait for the armed state to change before doing something else.
*/
IA2_STATE_ARMED = 0x2,
/** Indicates the user interface object corresponding to this object no longer exists. */
IA2_STATE_DEFUNCT = 0x4,
/** An object with this state has a caret and implements the IAccessibleText interface.
Such fields may be read-only, so STATE_SYSTEM_READONLY is valid in combination
with IA2_STATE_EDITABLE.
*/
IA2_STATE_EDITABLE = 0x8,
/** Indicates the orientation of this object is horizontal. */
IA2_STATE_HORIZONTAL = 0x10,
/** Indicates this object is minimized and is represented only by an icon. */
IA2_STATE_ICONIFIED = 0x20,
/** Indicates an input validation failure. */
IA2_STATE_INVALID_ENTRY = 0x40,
/** Indicates that this object manages its children.
Note: Due to the fact that MSAA's WinEvents don't allow the active child index
to be passed on the IA2_EVENT_ACTIVE_DESCENDANT_CHANGED event, the manages
descendants scheme can't be used. Instead the active child object has to fire
MSAA's EVENT_OBJECT_FOCUS. In a future release a new event mechanism may be
added to provide for event specific data to be passed with the event. At that
time the IA2_EVENT_ACTIVE_DECENDENT_CHANGED event and
IA2_STATE_MANAGES_DESCENDANTS state would be useful.
*/
IA2_STATE_MANAGES_DESCENDANTS = 0x80,
/** Indicates that an object is modal.
Modal objects have the behavior that something must be done with the object
before the user can interact with an object in a different window.
*/
IA2_STATE_MODAL = 0x100,
/** Indicates this text object can contain multiple lines of text. */
IA2_STATE_MULTI_LINE = 0x200,
/** Indicates this object paints every pixel within its rectangular region. */
IA2_STATE_OPAQUE = 0x400,
/** Indicates that user interaction is required.
An example of when this state is used is when a field in a form must be filled
before a form can be processed.
*/
IA2_STATE_REQUIRED = 0x800,
/** Indicates an object which supports text selection.
Note: This is different than MSAA STATE_SYSTEM_SELECTABLE.
*/
IA2_STATE_SELECTABLE_TEXT = 0x1000,
/** Indicates that this text object can contain only a single line of text. */
IA2_STATE_SINGLE_LINE = 0x2000,
/** Indicates that the accessible object is stale.
This state is used when the accessible object no longer accurately
represents the state of the object which it is representing such as when an
object is transient or when an object has been or is in the process of being
destroyed or when the object's index in its parent has changed.
*/
IA2_STATE_STALE = 0x4000,
/** Indicates that the object implements autocompletion.
This state indicates that a text control will respond to the input of
one ore more characters and cause a sub-item to become selected. The
selection may also result in events fired on the parent object.
*/
IA2_STATE_SUPPORTS_AUTOCOMPLETION = 0x8000,
/** Indicates this object is transient.
An object has this state when its parent object has the state ::IA2_STATE_MANAGES_DESCENDANTS.
For example, a list item object may be managed by its parent list object and may only
exist as long as the object is actually rendered. Similarly a table cell's accessible
object may exist only while the cell has focus. However, from the perspective of an
assistive technology a transient object behaves like a non-transient object. As a
result it is likely that this state is not of use to an assistive technology, but it
is provided in case an assistive technology determines that knowledge of the transient
nature of the object is useful and also for harmony with the Linux accessibility API.
Also, see ::IA2_STATE_MANAGES_DESCENDANTS for more information.
*/
IA2_STATE_TRANSIENT = 0x10000,
/** Indicates the orientation of this object is vertical. */
IA2_STATE_VERTICAL = 0x20000,
/** Indicates this object is checkable.
The standard checkable objects are check boxes, radio buttons, check box menu
items, radio menu items, and toggle buttons. Since assistive technology will
determine that these objects are checkable via the object's role the checkable
state is not required. However, this state is necessary in those cases where
an object has a role which is not one of the previously mentioned roles. An
example is a table cell which indicates whether or not an email has an attachment,
whether or not an mail is considered spam, and whether or not an email has been read.
*/
IA2_STATE_CHECKABLE = 0x40000,
/** Indicates this object is pinned.
This state indicates that an object is fixed at a certain location. One example
is a browser tab that when pinned cannot be moved until unpinned. Another example
is a movable or floating object that when pinned remains in its pinned location
until being unpinned.
*/
IA2_STATE_PINNED = 0x80000
};
/*************************************************************************
*
* File Name (Accessible2.idl)
*
* IAccessible2 IDL Specification
*
* Copyright (c) 2007, 2013 Linux Foundation
* Copyright (c) 2006 IBM Corporation
* Copyright (c) 2000, 2006 Sun Microsystems, Inc.
* All rights reserved.
*
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* 3. Neither the name of the Linux Foundation nor the names of its
* contributors may be used to endorse or promote products
* derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This BSD License conforms to the Open Source Initiative "Simplified
* BSD License" as published at:
* http://www.opensource.org/licenses/bsd-license.php
*
* IAccessible2 is a trademark of the Linux Foundation. The IAccessible2
* mark may be used in accordance with the Linux Foundation Trademark
* Policy to indicate compliance with the IAccessible2 specification.
*
************************************************************************/
/** @mainpage
@section _interfaces Interfaces
IAccessible2\n
IAccessible2_2\n
IAccessible2_3\n
IAccessible2_4\n
IAccessibleAction\n
IAccessibleApplication\n
IAccessibleComponent\n
IAccessibleDocument\n
IAccessibleEditableText\n
IAccessibleHypertext\n
IAccessibleHypertext2\n
IAccessibleHyperlink\n
IAccessibleImage\n
IAccessibleRelation\n
IAccessibleTable [Deprecated]\n
IAccessibleTable2\n
IAccessibleTableCell\n
IAccessibleText\n
IAccessibleText2\n
IAccessibleValue
@section _structs Structs
IA2Locale\n
IA2Range\n
IA2TableModelChange\n
IA2TextSegment
@section _enums Enums
::IA2Actions values are predefined actions for use when implementing support for HTML5 media.\n
::IA2CoordinateType values define the requested coordinate type (screen or parent window).\n
::IA2EventID values identify events.\n
::IA2Role values defines roles which are in addition to the existing MSAA roles.\n
::IA2ScrollType values define where to place an object or substring on the screen.\n
::IA2States values define states which are in addition to the existing MSAA states.\n
::IA2TableModelChangeType values describe the kinds of changes made to a table (insert, delete, update).\n
::IA2TextBoundaryType values define the requested text unit (character, word, sentence, line, paragraph).\n
::IA2TextSpecialOffsets values define special offsets for use in the text interfaces.
@section _constants Constants
@ref grpRelations
@section _misc Miscellaneous
@ref _licensePage "BSD License"\n
@ref _generalInfo "General Information"\n
@page _licensePage BSD License
%IAccessible2 IDL Specification
Copyright (c) 2007, 2013 Linux Foundation\n
Copyright (c) 2006 IBM Corporation\n
Copyright (c) 2000, 2006 Sun Microsystems, Inc.\n
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following
disclaimer in the documentation and/or other materials
provided with the distribution.
3. Neither the name of the Linux Foundation nor the names of its
contributors may be used to endorse or promote products
derived from this software without specific prior written
permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
This BSD License conforms to the Open Source Initiative "Simplified
BSD License" as published at:
http://www.opensource.org/licenses/bsd-license.php
%IAccessible2 is a trademark of the Linux Foundation. The %IAccessible2
mark may be used in accordance with the
<a href="http://www.linuxfoundation.org/collaborate/workgroups/accessibility/trademark-policy">
Linux Foundation Trademark Policy</a> to indicate compliance with the %IAccessible2 specification.
@page _generalInfo General Information
The following information is applicable to two or more interfaces.
@ref _errors\n
@ref _memory\n
&nbsp;&nbsp;@ref _arrayConsideration\n
@ref _indexes\n
@ref _enums\n
@ref _specialOffsets\n
@ref _dicoveringInterfaces\n
@ref _changingInterfaces\n
@ref _applicationInfo\n
@ref _childIDs\n
@ref _variants\n
@ref _iaaction-iahyperlink\n
@ref _trademark
@section _errors Error Handling
HRESULT values are defined by the Microsoft&reg; Win32&reg; API. For more information, refer to
<a href="http://msdn.microsoft.com/en-us/library/windows/desktop/aa378137%28v=vs.85%29.aspx">
Interpreting HRESULT Values</a> in MSDN&reg;.
Note that the S_FALSE return value is considered a non-error value and the
SUCCEEDED macro will return TRUE. S_FALSE is used when there is no failure
but there was nothing valid to return, e.g. in IAccessible2::attributes when
there are no attributes. When S_FALSE is returned [out] pointer types should
be NULL and [out] longs should generally be 0, but sometimes -1 is used such
as IAccessible2::indexInParent, IAccessibleText::caretOffset, and
IAccessibleHypertext::hyperlinkIndex.
Note that for BSTR [out] variables common COM practice is that the server does
the SysAllocString and the client does the SysFreeString. Also note that when
NULL is returned there is no need for the client to call SysFreeString. Please
refer to the documentation for each method for more details regarding error handling.
@section _memory Memory Management
The following memory management issues should be considered:
@li Although [out] BSTR variables are declared by the client, their space is
allocated by the server. They need to be freed with SysFreeString by the
client at end of life; the same is true when BSTRs are used in structs or
arrays which are passed to the server.
@li If there is no valid [out] BSTR to return, the server should return S_FALSE and
assign NULL to the output, e.g. *theOutBSTR = NULL;.
@li COM interfaces need to be referenced with AddRef when used and dereferenced
with Release at end of life.
@li Single [out] longs, HWNDs, booleans, and structs are declared by the caller
and passed by reference. The marshaller does all the memory management.
The following articles may be helpful for understanding memory management issues:
@li An article by Don Box in a
<a href="http://www.microsoft.com/msj/1196/activex1196.aspx">Q & A section</a>
of the November 1996 edition of the Microsoft Systems Journal.
@li A posting to a CodeGuru forum,
<a href="http://www.codeguru.com/forum/showthread.php?t=364511">Windows SDK
String: What are the rules for BSTR allocation and deallocation?</a>
@subsection _arrayConsideration Special Consideration when using Arrays
There are several methods which return arrays. In the case of IAccessible2::relations
and IAccessibleRelation::targets the client must allocate and free the arrays.
For the remaining methods which return arrays, the server must allocate the array
and the client must free the array when no longer needed. These methods are
IAccessible2::extendedStates, IAccessible2::localizedExtendedStates,
IAccessible2_2::relationTargetsOfType, IAccessibleAction::keyBinding,
IAccessibleHypertext2::hyperlinks, IAccessibleTable::selectedChildren,
IAccessibleTable::selectedColumns, IAccessibleTable::selectedRows,
IAccessibleTable2::selectedCells, IAccessibleTable2::selectedColumns,
IAccessibleTable2::selectedRows, IAccessibleTableCell::columnHeaderCells,
and IAccessibleTableCell::rowHeaderCells.
For those methods, the server must allocate both the top level array and any storage
associated with it, e.g. for BSTRs. The server must allocate the arrays with
CoTaskMemAlloc and any BSTRs with SysAllocString. The client must use CoTaskMemFree
to free the array and any BSTRs must be freed with SysFreeString.
Also, the IDL for IAccessible2::extendedStates, IAccessible2::localizedExtendedStates,
IAccessibleAction::keyBinding, IAccessibleTable::selectedChildren,
IAccessibleTable::selectedColumns, and IAccessibleTable::selectedRows includes an
extraneous [in] parameter for the caller to specify the max size of the array.
This parameter will be ignored by the COM server.
@section _indexes Zero and One Based Indexes
Unless otherwise specified all offsets and indexes are 0 based.
@section _enums Enums
Note that enums start at 0.
@section _specialOffsets Special Offsets for use in the IAccessibleText and IAccessibleEditableText Methods
IAccessibleText and IAccessibleEditableText can use one or more of the following
special offset values. They are defined in the ::IA2TextSpecialOffsets enum.
@li Using ::IA2_TEXT_OFFSET_LENGTH (-1) as an offset in any of the IAccessibleText or
IAccessibleEditableText methods is the same as specifying the length of the string.
@li Using ::IA2_TEXT_OFFSET_CARET (-2) as an offset for IAccessibleText::textBeforeOffset,
IAccessibleText::textAtOffset, and IAccessibleText::textAfterOffset indicates that the
text related to the physical location of the caret should be used. This is needed for
applications that consider the character offset of the end of one line (as reached by
pressing the End key) the same as the offset of the first character on the next line.
Since the same offset is associated with two different lines a special means is needed
to fetch text from the line where the caret is physically located.
@section _dicoveringInterfaces Discovery of Interfaces
In general AT (Assistive Technology) should try IAccessible2 interfaces, followed by using
the MSAA (Microsoft&reg; Active Accessibility&reg;) interfaces. (In cases where the an application
is known to have custom interfaces which provide information not supplied by IAccessible2
or MSAA, then those custom interfaces can be used.) The AT can then, by default, support
unknown IAccessible2/MSAA applications, without the application developers having to request
AT vendors for support on an individual application by application basis.
When you have a reference to an IAccessible and require a reference to an IAccessible2 use
QueryService as follows:
@code
// pAcc is a reference to the accessible object's IAccessible interface.
IServiceProvider *pService = NULL;
hr = pAcc->QueryInterface(IID_IServiceProvider, (void **)&pService);
if(SUCCEEDED(hr)) {
IAccessible2 *pIA2 = NULL;
hr = pService->QueryService(IID_IAccessible, IID_IAccessible2, (void**)&pIA2);
if (SUCCEEDED(hr) && pIA2) {
// The control supports IAccessible2.
// pIA2 is the reference to the accessible object's IAccessible2 interface.
}
}
@endcode
@section _changingInterfaces Changing between Accessible Interfaces
Note that developers must always implement MSAA's IAccessible and, if needed, some
of the interfaces in the set of IAccessible2 interfaces. Although the IAccessible2
IDL is coded such that IAccessible2 is a subclass of MSAA's IAccessible, none of
MSAA's IAccessible methods are redefined by IAccessible2.
QueryService must be used to switch from a reference to an MSAA IAccessible interface
to another interface. This has been
<a href="http://www.atia.org/files/public/Introducing_IAccessibleEx.doc">
documented</a> and the pertinent facts have been extracted below:
@par
Why use QueryService instead of just using QueryInterface to get IAccessibleEx
directly? The reason is that since MSAA 2.0, clients don't talk to a server's
IAccessible interface directly; instead they talk to an intermediate MSAA-provided
wrapper that calls through to the original IAccessible. This wrapper provides services
such as implementing IDispatch, supplying information from MSAA 2.0's Dynamic Annotation
service, and scaling locations when running on Windows Vista with DPI scaling enabled.
QueryService is the supported way to expose additional interfaces from an existing
IAccessible and was originally used by MSHTML to expose IHTMLElement objects corresponding
to IAccessibles. QueryService is often more convenient for servers to implement than
QueryInterface because it does not have the same requirements for preserving object
identity or symmetry/transitivity as QueryInterface, so QueryService allows servers to
easily implement the interface on the same object or a separate object. The latter is
often hard to do with QueryInterface unless the original object supports aggregation.
Two related references in MSDN&reg; are:
@li <a href="http://msdn.microsoft.com/en-us/library/ms696078(VS.85).aspx">
"Using QueryService to expose a native object model interface for an IAccessible object"</a>
@li <a href="http://msdn.microsoft.com/en-us/library/ms528415.aspx#acc_obj">
"Accessing the Internet Explorer Object Associated with an Accessible Object"</a>
Based on this information from Microsoft, QueryService must be used to switch back and forth
between a reference to an MSAA IAccessible interface and any of the IAccessible2 interfaces.
Regarding switching between any of the IAccessible2 interfaces, applications implementing
IAccessible2 should implement the IAccessible2 interfaces on a single object since ATs
will be using QueryInterface to switch between the IAccessilbe2 interfaces. Implementing
the IAccessible2 interfaces on separate objects would require the use of QueryService.
There is one exception, IAccessibleApplication can be implemented on a separate object so
its common code doesn't have to be included in each accessible object. ATs should use
QueryService to access IAccessibleApplication.
@section _applicationInfo Access to Information about the Application
Servers implementing IAccessible2 should provide access to the IAccessibleApplication
interface via QueryService from any object so that ATs can easily determine specific
information about the application such as its name or version.
@section _childIDs Child IDs
The IAccessible2 interfaces do not support child IDs, i.e. simple child elements.
Full accessible objects must be created for each object that supports IAccessible2.
Therefore MSAA's get_accChild should never return a child ID (other than CHILDID_SELF)
for an object that implements any of the IAccessible2 interfaces.
Microsoft's UI Automation specification has the same limitation and this was resolved
in the UI Automation Express specification by adding IAccessibleEx::GetObjectForChild
and IAccessibleEx::GetIAccessiblePair. These methods allow mapping back and forth
between an IAccessibleEx and an {IAccessible, Child ID} pair. A future version of
IAccessible2 may include similar methods to map back and forth between an IAccessible2
and an {IAccessible, Child ID} pair.
@section _variants VARIANTs
Some methods return a VARIANT. Implementers need to make sure that the return type is
specified, i.e. VT_I4, VT_IDISPATCH, etc. The methods that return VARIANTs are
IAccessibleHyperlink::anchor, IAccessibleHyperlink::anchorTarget, IAccessibleValue::currentValue,
IAccessibleValue::maximumValue, IAccessibleValue::minimumValue.
@section _iaaction-iahyperlink IAccessibleHyperlink as subclass of IAccessibleAction
In this version of the IDL, IAccessibleHyperlink is a subclass of IAccessibleAction.
However, there is no practical need for that inheritance and in some cases, such as
an image map of smart tags, it doesn't make sense because such an image map doesn't
have actionable objects; it's the secondary smart tags that are actionable. As a
result, implementations should not rely on the inheritance as it may be removed in
a later version of the IDL.
@section _trademark Trademark Attribution
The names of actual companies and products mentioned herein may be the trademarks of
their respective owners. In particular, Active Accessibility, Microsoft, MSDN, and Win32
are trademarks of the Microsoft group of companies in the U.S.A. and/or other countries.
**/
/** A structure defining the locale of an accessible object.
IAccessible2::locale returns this struct.
*/
typedef struct IA2Locale {
BSTR language; ///< ISO 639-1 Alpha-2 two character language code
BSTR country; ///< ISO 3166-1 Alpha-2 two character country code
BSTR variant; ///< Application specific variant of the locale
} IA2Locale;
/** @brief This interface exposes the primary set of information about an
IAccessible2 enabled accessible object.
This interface must always be provided for objects that support some
portion of the collection of the %IAccessible2 interfaces.
Please refer to @ref _changingInterfaces "Changing between Accessible Interfaces"
for special considerations related to use of the MSAA IAccessible interface and
the set of %IAccessible2 interfaces.
*/
[object, uuid(E89F726E-C4F4-4c19-BB19-B647D7FA8478)]
interface IAccessible2 : IAccessible
{
/** @brief Returns the number of accessible relations for this object.
@param [out] nRelations
@retval S_OK
*/
[propget] HRESULT nRelations
(
[out, retval] long *nRelations
);
/** @brief Returns one accessible relation for this object.
@param [in] relationIndex
0 based
@param [out] relation
@retval S_OK
@retval E_INVALIDARG if bad [in] passed
*/
[propget] HRESULT relation
(
[in] long relationIndex,
[out, retval] IAccessibleRelation **relation
);
/** @brief Returns multiple accessible relations for this object.
@param [in] maxRelations
maximum size of the array allocated by the client
@param [out] relations
The array of accessible relation objects. Note that this array is to be
allocated by the client and freed when no longer needed. Refer to @ref
_arrayConsideration "Special Consideration when using Arrays" for more details.
@param [out] nRelations
actual number of relations in the returned array (not more than maxRelations)
@retval S_OK
@retval S_FALSE if there are no relations, nRelations is set to 0
@note As a performant alternative, client code should consider using IAccessible2_2::relationTargetsOfType.
*/
[propget] HRESULT relations
(
[in] long maxRelations,
[out, size_is(maxRelations), length_is(*nRelations)]
IAccessibleRelation **relations,
[out, retval] long *nRelations
);
/** @brief Returns the role of an %IAccessible2 object.
@param [out] role
The role of an %IAccessible2 object.
@retval S_OK
@note
@li For convenience MSAA roles are also passed through this method so the
AT doesn't have to also fetch roles through MSAA's get_accRole.
@li %IAccessible2 roles should not be passed through MSAA's get_accRole.
@li For compatibility with non IAccessible2 enabled ATs, IAccessible2
applications should also add support to get_accRole to return the closest
MSAA role or ROLE_SYSTEM_CLIENT (the MSAA defined default role) if there
is not a good match.
@li This method is missing a [propget] prefix in the IDL. The result is the
method is named role in generated C++ code instead of get_role.
*/
HRESULT role
(
[out, retval] long *role
);
/** @brief Makes an object visible on the screen.
@param [in] scrollType
Defines where the object should be placed on the screen.
@retval S_OK
@retval E_INVALIDARG if bad [in] passed
*/
HRESULT scrollTo
(
[in] enum IA2ScrollType scrollType
);
/** @brief Moves the top left of an object to a specified location.
@param [in] coordinateType
Specifies whether the coordinates are relative to the screen or the parent object.
@param [in] x
Defines the x coordinate.
@param [in] y
Defines the y coordinate.
@retval S_OK
@retval E_INVALIDARG if bad [in] passed
*/
HRESULT scrollToPoint
(
[in] enum IA2CoordinateType coordinateType,
[in] long x,
[in] long y
);
/** @brief Returns grouping information.
Used for tree items, list items, tab panel labels, radio buttons, etc.
Also used for collections of non-text objects.
@param [out] groupLevel
1 based, 0 indicates that this value is not applicable
@param [out] similarItemsInGroup
1 based, 0 indicates that this value is not applicable
@param [out] positionInGroup
1 based, 0 indicates that this value is not applicable. This is an index
into the objects in the current group, not an index into all the objects
at the same group level.
@retval S_OK if at least one value is valid
@retval S_FALSE if no values are valid, [out] values are 0s
@note This method is meant to describe the nature of an object's containment
structure. It's exposed by trees, tree grids, nested lists, nested menus,
but not headings, which uses the level object attribute. It is also exposed
by radio buttons (with groupLevel == 0).
@note This is normally not implemented on a combo box to describe the nature
of its contents. Normally an AT will get that information from its child list
object. However, in some cases when non-edit combo boxes are not able to be structured
such that the list is a child of the combo box, this method is implemented on
the combo box itself. ATs can use this interface if a child list is not found.
*/
[propget] HRESULT groupPosition
(
[out] long *groupLevel,
[out] long *similarItemsInGroup,
[out, retval] long *positionInGroup
);
/** @brief Returns the bit strip containing any IAccessible2 states.
The IAccessible2 states are in addition to the MSAA states and are defined in
the IA2States enum.
@param [out] states
@retval S_OK
*/
[propget] HRESULT states
(
[out, retval] AccessibleStates *states
);
/** @brief Returns the extended role.
An extended role is a role which is dynamically generated by the application.
It is not predefined by the %IAccessible2 specification.
@param [out] extendedRole
@retval S_OK
@retval S_FALSE if there is nothing to return, [out] value is NULL
*/
[propget] HRESULT extendedRole
(
[out, retval] BSTR *extendedRole
);
/** @brief Returns the localized extended role.
@param [out] localizedExtendedRole
@retval S_OK
@retval S_FALSE if there is nothing to return, [out] value is NULL
*/
[propget] HRESULT localizedExtendedRole
(
[out, retval] BSTR *localizedExtendedRole
);
/** @brief Returns the number of extended states.
@param [out] nExtendedStates
@retval S_OK
*/
[propget] HRESULT nExtendedStates
(
[out, retval] long *nExtendedStates
);
/** @brief Returns the extended states (array of strings).
An extended state is a state which is dynamically generated by the application.
It is not predefined by the %IAccessible2 specification.
@param [in] maxExtendedStates
This parameter is ignored. Refer to @ref _arrayConsideration
"Special Consideration when using Arrays" for more details.
@param [out] extendedStates
This array is allocated by the server. The client must free it with CoTaskMemFree.
@param [out] nExtendedStates
The number of extended states returned; the size of the returned array.
@retval S_OK
@retval S_FALSE if there are no states, [out] values are NULL and 0 respectively
*/
[propget] HRESULT extendedStates
(
[in] long maxExtendedStates,
[out, size_is(,maxExtendedStates), length_is(,*nExtendedStates)] BSTR **extendedStates,
[out, retval] long *nExtendedStates
);
/** @brief Returns the localized extended states (array of strings).
@param [in] maxLocalizedExtendedStates
This parameter is ignored. Refer to @ref _arrayConsideration
"Special Consideration when using Arrays" for more details.
@param [out] localizedExtendedStates
This array is allocated by the server. The client must free it with CoTaskMemFree.
@param [out] nLocalizedExtendedStates
The number of localized extended states returned; the size of the returned array.
@retval S_OK
@retval S_FALSE if there are no states, [out] values are NULL and 0 respectively
*/
[propget] HRESULT localizedExtendedStates
(
[in] long maxLocalizedExtendedStates,
[out, size_is(,maxLocalizedExtendedStates), length_is(,*nLocalizedExtendedStates)] BSTR **localizedExtendedStates,
[out, retval] long *nLocalizedExtendedStates
);
/** @brief Returns the unique ID.
The uniqueID is an identifier for this object, is unique within the
current window, and remains the same for the lifetime of the accessible
object.
The uniqueID is not related to:
- the MSAA objectID which is used by the server to disambiguate between
IAccessibles per HWND or
- the MSAA childID which is used to disambiguate between children being
managed by an IAccessible.
This value is provided so the AT can have access to a unique runtime persistent
identifier even when not handling an event for the object.
An example of when this value is useful is if the AT wants to build a cache.
The AT could cache the uniqueIDs in addition to other data being cached.
When an event is fired the AT could map the uniqueID to its internal model.
Thus, if there's a REORDER/SHOW/HIDE event the AT knows which part of the
internal structure has been invalidated and can refetch just that part.
This value can also be used by an AT to determine when the current control
has changed. If the role is the same for two controls that are adjacent in
the tab order, this can be used to detect the new control.
Another use of this value by an AT is to identify when a grouping object has
changed, e.g. when moving from a radio button in one group to a radio button in a
different group.
One means of implementing this would be to create a factory with a 32 bit number
generator and a reuse pool. The number generator would emit numbers starting
at 1. Each time an object's life cycle ended, its number would be saved into a
reuse pool. The number generator would be used whenever the reuse pool was empty.
Another way to create a unique ID is to generate it from a pointer value, e.g. an
object's address. That would be unique because no two active objects can use the
same allocated memory space.
@param [out] uniqueID
@retval S_OK
*/
[propget] HRESULT uniqueID
(
[out, retval] long *uniqueID
);
/** @brief Returns the window handle for the parent window which contains this object.
This is the same window handle which will be passed for any events that occur on the
object, but is cached in the accessible object for use when it would be helpful to
access the window handle in cases where an event isn't fired on this object.
A use case is when a screen reader is grabbing an entire web page on a page load.
Without the availability of windowHandle, the AT would have to get the window handle
by using WindowFromAccessibleObject on each IAccessible, which is slow because it's
implemented by oleacc.dll as a loop which crawls up the ancestor chain and looks for
a ROLE_WINDOW object, mapping that back to a window handle.
@param [out] windowHandle
@retval S_OK
*/
[propget] HRESULT windowHandle
(
[out, retval] HWND *windowHandle
);
/** @brief Returns the index of this object in its parent object.
@param [out] indexInParent
0 based; -1 indicates there is no parent; the upper bound is the value
returned by the parent's IAccessible::get_accChildCount.
@retval S_OK
@retval S_FALSE if no parent, [out] value is -1
*/
[propget] HRESULT indexInParent
(
[out, retval] long *indexInParent
);
/** @brief Returns the IA2Locale of the accessible object.
@param [out] locale
@retval S_OK
*/
[propget] HRESULT locale
(
[out, retval] IA2Locale *locale
);
/** @brief Returns the attributes specific to this object, such as a cell's formula.
@param [out] attributes
@retval S_OK
@retval S_FALSE returned if there is nothing to return, [out] value is NULL
*/
[propget] HRESULT attributes
(
[out, retval] BSTR *attributes
);
}
/*************************************************************************
*
* File Name (Accessible2_2.idl)
*
* IAccessible2 IDL Specification
*
* Copyright (c) 2007, 2013 Linux Foundation
* Copyright (c) 2006 IBM Corporation
* Copyright (c) 2000, 2006 Sun Microsystems, Inc.
* All rights reserved.
*
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* 3. Neither the name of the Linux Foundation nor the names of its
* contributors may be used to endorse or promote products
* derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This BSD License conforms to the Open Source Initiative "Simplified
* BSD License" as published at:
* http://www.opensource.org/licenses/bsd-license.php
*
* IAccessible2 is a trademark of the Linux Foundation. The IAccessible2
* mark may be used in accordance with the Linux Foundation Trademark
* Policy to indicate compliance with the IAccessible2 specification.
*
************************************************************************/
/** @brief This interface exposes the primary set of information about an
IAccessible2 enabled accessible object.
This interface must always be provided for objects that support some
portion of the collection of the %IAccessible2 interfaces.
Please refer to @ref _changingInterfaces "Changing between Accessible Interfaces"
for special considerations related to use of the MSAA IAccessible interface and
the set of %IAccessible2 interfaces.
*/
[object, uuid(6C9430E9-299D-4E6F-BD01-A82A1E88D3FF)]
interface IAccessible2_2 : IAccessible2
{
/** @brief Returns the attribute value of a specified attribute specific to this object.
@param [in] name
@param [out] attribute
@retval S_OK
@retval S_FALSE returned if there is nothing to return, [out] value is NULL.
@retval E_INVALIDARG if bad [in] passed.
@note The output value is a VARIANT. Typically it will be a VT_BSTR, but there
are some cases where it will be a VT_I4 or VT_BOOL. Refer to the <a href=
"http://www.linuxfoundation.org/collaborate/workgroups/accessibility/iaccessible2/objectattributesIAccessible2">
Object Attributes specification</a> for more information.
*/
[propget] HRESULT attribute
(
[in] BSTR name,
[out, retval] VARIANT *attribute
);
/** @brief Returns the deepest hypertext accessible in the subtree of this object, and the caret offset within it.
@param [out] accessible
@param [out] caretOffset
@retval S_OK
@retval S_FALSE returned if there is no caret in any of the objects in the subtree, [out] accessible is NULL and [out] caretOffset is -1.
*/
[propget] HRESULT accessibleWithCaret
(
[out] IUnknown **accessible,
[out, retval] long *caretOffset
);
/** @brief Returns relation targets for a specified target type.
@param [in] type
The requested @ref grpRelations "relation type".
@param [in] maxTargets
The number of targets requested. 0 indicates that all targets should be returned.
@param [out] targets
This array is allocated by the server. The client must free it with CoTaskMemFree.
@param [out] nTargets
The number of targets returned; the size of the returned array.
@retval S_OK
@retval S_FALSE if there are no targets, [out] values are NULL and 0 respectively.
@retval E_INVALIDARG if bad [in] passed.
*/
[propget] HRESULT relationTargetsOfType
(
[in] BSTR type,
[in] long maxTargets,
[out, size_is(,*nTargets)] IUnknown ***targets,
[out, retval] long *nTargets
);
}
/**
* This structure represents a directional range of the content. It is defined
* by two points in the content, where each one is defined by an accessible
* object and an offset relative to it. A typical case of a range point is
* a text accessible and text offset within it.
*
* The "anchor" is one point of the range and typically remains constant.
* The other point is the "active" point, which typically corresponds to
* the user's focus or point of interest. The user moves the active point to
* expand or collapse the range. In most cases, anchor is the start of the range
* and active is the end. However, in case of selection, when selecting
* backwards (e.g. pressing shift+left arrow in a text field), the start of
* the range is the active point, as the user moves this to manipulate
* the selection.
*/
typedef struct IA2Range {
IUnknown* anchor;
long anchorOffset;
IUnknown* active;
long activeOffset;
} IA2Range;
/**
* @brief This interface is an extension of IAccessible2_2 and IAccessible2
* interfaces.
*/
[object, uuid(5BE18059-762E-4E73-9476-ABA294FED411)]
interface IAccessible2_3 : IAccessible2_2
{
/**
* @brief Returns an array of ranges for selections within the accessible.
* @param [out] ranges
The array of selection ranges, allocated by the server. The client must
free it with CoTaskMemFree.
* @param [out] nRanges
the array length
* @retval S_OK
* @retval S_FALSE returned if there is no selection within the accessible
*/
[propget] HRESULT selectionRanges
(
[out, size_is(,*nRanges)] IA2Range **ranges,
[out, retval] long *nRanges
);
}
/**
* @brief This interface is an extension of IAccessible2_3 which exposes a
* single method for setting the current selection given a number of selection
* ranges.
*
* This interface is preliminary as it has not been adopted by any standard yet.
*/
[object, uuid(610a7bec-91bb-444d-a336-a0daf13c4c29)]
interface IAccessible2_4 : IAccessible2_3
{
/**
* @brief Sets the current selection to the provided ranges. The provided
* ranges don't need to be contained within this accessible.
* @param [in] nRanges
* The length of the array containing the selection ranges.
* @param [in] ranges
* The array of selection ranges, allocated by the client with
* CoTaskMemAlloc and freed by the client with CoTaskMemFree.
* @retval S_OK Returned if the selection was made successfully.
* @retval S_FALSE Returned if the selection could not be made.
* @retval E_INVALIDARG Returned if any of the input arguments are invalid.
*/
HRESULT setSelectionRanges
(
[in] long nRanges,
[in, size_is(nRanges)] IA2Range* ranges
);
}
/*************************************************************************
*
* File Name (AccessibleComponent.idl)
*
* IAccessible2 IDL Specification
*
* Copyright (c) 2007, 2010 Linux Foundation
* Copyright (c) 2006 IBM Corporation
* Copyright (c) 2000, 2006 Sun Microsystems, Inc.
* All rights reserved.
*
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* 3. Neither the name of the Linux Foundation nor the names of its
* contributors may be used to endorse or promote products
* derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This BSD License conforms to the Open Source Initiative "Simplified
* BSD License" as published at:
* http://www.opensource.org/licenses/bsd-license.php
*
* IAccessible2 is a trademark of the Linux Foundation. The IAccessible2
* mark may be used in accordance with the Linux Foundation Trademark
* Policy to indicate compliance with the IAccessible2 specification.
*
************************************************************************/
/** A value specifying a color in ARGB format, where each 8 bit color component
specifies alpha, red, green, and blue respectively. The alpha value is optional.
*/
typedef long IA2Color;
/** @brief This interface is implemented by any object that can be rendered
on the screen.
This interface provides the standard mechanism for an assistive technology
to retrieve information concerning the graphical representation of an object.
Coordinates used by the functions of this interface are specified in
different coordinate systems. Their scale is the same and is equal to
that of the screen coordinate system. In other words all coordinates
are measured in pixels. They differ in their respective origin:
<ul>
<li>The screen coordinate system has its origin in the upper left
corner of the current screen.</li>
<li>The origin of the parent coordinate system is the upper left corner
of the parent's bounding box. With no parent the screen coordinate
system is used instead.</li>
</ul>
*/
[object, uuid(1546D4B0-4C98-4bda-89AE-9A64748BDDE4)]
interface IAccessibleComponent : IUnknown
{
/** @brief Returns the location of the upper left corner of the object's
bounding box relative to the immediate parent object.
The coordinates of the bounding box are given relative to the parent's
coordinate system. The coordinates of the returned position are relative
to this object's parent or relative to the screen on which this object
is rendered if it has no parent. If the object is not on any screen
the returned position is (0,0).
@param [out] x
@param [out] y
@retval S_OK
*/
[propget] HRESULT locationInParent
(
[out] long *x,
[out, retval] long *y
);
/** @brief Returns the foreground color of this object.
@param [out] foreground
The returned color is the foreground color of this object or, if
that is not supported, the default foreground color.
@retval S_OK
*/
[propget] HRESULT foreground
(
[out, retval] IA2Color *foreground
);
/** @brief Returns the background color of this object.
@param [out] background
The returned color is the background color of this object or, if
that is not supported, the default background color.
@retval S_OK
*/
[propget] HRESULT background
(
[out, retval] IA2Color *background
);
}
/*************************************************************************
*
* File Name (AccessibleValue.idl)
*
* IAccessible2 IDL Specification
*
* Copyright (c) 2007, 2010 Linux Foundation
* Copyright (c) 2006 IBM Corporation
* Copyright (c) 2000, 2006 Sun Microsystems, Inc.
* All rights reserved.
*
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* 3. Neither the name of the Linux Foundation nor the names of its
* contributors may be used to endorse or promote products
* derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This BSD License conforms to the Open Source Initiative "Simplified
* BSD License" as published at:
* http://www.opensource.org/licenses/bsd-license.php
*
* IAccessible2 is a trademark of the Linux Foundation. The IAccessible2
* mark may be used in accordance with the Linux Foundation Trademark
* Policy to indicate compliance with the IAccessible2 specification.
*
************************************************************************/
/** @brief This interface gives access to a single numerical value.
The %IAccessibleValue interface represents a single numerical value and should
be implemented by any class that supports numerical value like progress bars
and spin boxes. This interface lets you access the value and its upper and
lower bounds.
*/
[object, uuid(35855B5B-C566-4fd0-A7B1-E65465600394)]
interface IAccessibleValue : IUnknown
{
/** @brief Returns the value of this object as a number.
The exact return type is implementation dependent. Typical types are long and
double.
@param [out] currentValue
Returns the current value represented by this object. See the section about
@ref _variants "VARIANTs" for additional information.
@retval S_OK
@retval S_FALSE if there is nothing to return, [out] value is a VARIANT with vt = VT_EMPTY
*/
[propget] HRESULT currentValue
(
[out, retval] VARIANT *currentValue
);
/** @brief Sets the value of this object to the given number.
The argument is clipped to the valid interval whose upper and lower
bounds are returned by the methods IAccessibleValue::maximumValue and
IAccessibleValue::minimumValue, i.e. if it is lower than the minimum
value the new value will be the minimum and if it is greater than the
maximum then the new value will be the maximum.
@param [in] value
The new value represented by this object. The set of admissible types for
this argument is implementation dependent.
@retval S_OK
*/
HRESULT setCurrentValue
(
[in] VARIANT value
);
/** @brief Returns the maximal value that can be represented by this object.
The type of the returned value is implementation dependent. It does not have
to be the same type as that returned by method IAccessibleValue::currentValue.
@param [out] maximumValue
Returns the maximal value in an implementation dependent type. If this object
has no upper bound then an empty object is returned. See the section about
@ref _variants "VARIANTs" for additional information.
@retval S_OK
@retval S_FALSE if there is nothing to return, [out] value is a VARIANT with vt = VT_EMPTY
*/
[propget] HRESULT maximumValue
(
[out, retval] VARIANT *maximumValue
);
/** @brief Returns the minimal value that can be represented by this object.
The type of the returned value is implementation dependent. It does not have
to be the same type as that returned by method IAccessibleValue::currentValue.
@param [out] minimumValue
Returns the minimal value in an implementation dependent type. If this object
has no lower bound then an empty object is returned. See the section about
@ref _variants "VARIANTs" for additional information.
@retval S_OK
@retval S_FALSE if there is nothing to return, [out] value is a VARIANT with vt = VT_EMPTY
*/
[propget] HRESULT minimumValue
(
[out, retval] VARIANT *minimumValue
);
};
/*************************************************************************
*
* File Name (AccessibleText.idl)
*
* IAccessible2 IDL Specification
*
* Copyright (c) 2007, 2013 Linux Foundation
* Copyright (c) 2006 IBM Corporation
* Copyright (c) 2000, 2006 Sun Microsystems, Inc.
* All rights reserved.
*
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* 3. Neither the name of the Linux Foundation nor the names of its
* contributors may be used to endorse or promote products
* derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This BSD License conforms to the Open Source Initiative "Simplified
* BSD License" as published at:
* http://www.opensource.org/licenses/bsd-license.php
*
* IAccessible2 is a trademark of the Linux Foundation. The IAccessible2
* mark may be used in accordance with the Linux Foundation Trademark
* Policy to indicate compliance with the IAccessible2 specification.
*
************************************************************************/
/** A structure containing a substring and the start and end offsets in the enclosing string.
IAccessibleText::newText and IAccessibleText::oldText return this struct.
*/
typedef struct IA2TextSegment {
BSTR text; ///< A copy of a segment of text taken from an enclosing paragraph.
long start; ///< Index of the first character of the segment in the enclosing text.
long end; ///< Index of the character following the last character of the segment in the enclosing text.
} IA2TextSegment;
/** This enum defines values which specify a text boundary type.
IA2_TEXT_BOUNDARY_SENTENCE is optional. When a method doesn't implement this
method it must return S_FALSE. Typically this feature would not be implemented
by an application. However, if the application developer was not satisfied with
how screen readers have handled the reading of sentences this boundary type
could be implemented and screen readers could use the application's version of a
sentence rather than the screen reader's.
The rest of the boundary types must be supported.
This enum is used in IAccessibleText::textBeforeOffset, IAccessibleText::textAtOffset,
and IAccessibleText::textAfterOffset.
*/
enum IA2TextBoundaryType {
/** Typically, a single character is returned. In some cases more than one
character is returned, for example, when a document contains field data such
as a field containing a date, time, or footnote reference. In this case
the caret can move over several characters in one movement of the caret.
Note, that after the caret moves, the caret offset changes by the number of
characters in the field, e.g. by 8 characters in the following date: 03/26/07.
*/
IA2_TEXT_BOUNDARY_CHAR,
/** The range provided matches the range observed when the application
processes the Ctrl + left arrow and Ctrl + right arrow key sequences.
Typically this is from the start of one word to the start of the next, but
various applications are inconsistent in the handling of the end of a line.
*/
IA2_TEXT_BOUNDARY_WORD,
/** Range is from start of one sentence to the start of another sentence.
*/
IA2_TEXT_BOUNDARY_SENTENCE,
/** Range is from start of one paragraph to the start of another paragraph.
*/
IA2_TEXT_BOUNDARY_PARAGRAPH,
/** Range is from start of one line to the start of another line. This often
means that an end-of-line character will appear at the end of the range.
However in the case of some applications an end-of-line character indicates
the end of a paragraph and the lines composing the paragraph, other than
the last line, do not contain an end of line character.
*/
IA2_TEXT_BOUNDARY_LINE,
/** <b>Deprecated.</b> Using this value will cause all text to be returned.
Note: IAccessibleText::text should be used instead.
*/
IA2_TEXT_BOUNDARY_ALL
};
/** @brief This interface gives read-only access to text.
The %IAccessibleText interface should be implemented by all components
that present textual information on the display like buttons,
text entry fields, or text portions of the document window. The interface
provides access to the text's content, attributes, and spatial location.
However, text can not be modified with this interface. That is the task
of the IAccessibleEditableText interface.
The text length, i.e. the number of characters in the text, is
returned by IAccessibleText::nCharacters. All methods that operate
on particular characters (e.g. IAccessibleText::textAtOffset) use character
indices from 0 to length-1. All methods that operate on character positions
(e.g. IAccessibleText::text) use indices from 0 to length.
Please note that accessible text does not necessarily support selection.
In this case it should behave as if there where no selection. An empty
selection is used for example to express the current cursor position.
Refer to @ref _specialOffsets
"Special Offsets for use in the IAccessibleText and IAccessibleEditableText Methods"
for information about special offsets that can be used in %IAccessibleText methods.
E_FAIL is returned in the following cases
@li endOffset < startOffset
@li endoffset > length
*/
[object, uuid(24FD2FFB-3AAD-4a08-8335-A3AD89C0FB4B)]
interface IAccessibleText : IUnknown
{
/** @brief Adds a text selection
@param [in] startOffset
Starting offset ( 0 based).
@param [in] endOffset
Offset of first character after new selection (0 based).
@retval S_OK
@retval E_INVALIDARG if bad [in] passed
@note Refer to @ref _specialOffsets
"Special Offsets for use in the IAccessibleText and IAccessibleEditableText Methods"
for information about special offsets that can be used in %IAccessibleText methods.
*/
HRESULT addSelection
(
[in] long startOffset,
[in] long endOffset
);
/** @brief Returns text attributes.
@param [in] offset
Text offset (0 based). Refer to @ref _specialOffsets
"Special Offsets for use in the IAccessibleText and IAccessibleEditableText Methods"
for information about special offsets that can be used in %IAccessibleText methods.
@param [out] startOffset
The starting offset of the character range over which all text attributes match
those of offset. (0 based)
@param [out] endOffset
The offset of the first character past the character range over which all text
attributes match those of offset. (0 based)
@param [out] textAttributes
A string of attributes describing the text. The attributes are described in the
<a href="http://www.linuxfoundation.org/en/Accessibility/IAccessible2/TextAttributes">
text attributes specification</a> on the %IAccessible2 web site.
@retval S_OK
@retval S_FALSE if there is nothing to return, [out] values are 0s and NULL respectively
@retval E_INVALIDARG if bad [in] passed
*/
[propget] HRESULT attributes
(
[in] long offset,
[out] long *startOffset,
[out] long *endOffset,
[out, retval] BSTR *textAttributes
);
/** @brief Returns the position of the caret.
Returns the 0-based offset of the caret within the text. If the text is
implemented as a tree of text objects with embed characters in higher levels
representing substrings of child text objects and the caret is in one of the
child text objects, then the offset in the higher level text object would be
at the embed character representing child text object that contains the caret.
For example, if the string "one two three" is implemented as a two text objects,
with a top level text object containing an embed character "one ? three" and a
child text object containing "two" and if the caret is in the descendant object
just before the 'o' in "two", then:
<ul>
<li>the caretOffset for the "one ? three" object would be 4, matching the embed character</li>
<li>the caretOffset for "two" would be 2, matching the "o"</li>
</ul>
The caret position/offset is that of the character logically following it, e.g.
to the right of it in a left to right language, or to the left of it in a right
to left language.
@param [out] offset
The returned offset is relative to the text represented by this object.
@retval S_OK
@retval S_FALSE if the caret is not currently active on this object, i.e. the
caret is located on some other object. The returned offset value will be -1.
@note S_FALSE (and an offset of -1) will not be returned if the caret is somewhere
in the text object or one of its descendants.
*/
[propget] HRESULT caretOffset
(
[out, retval] long *offset
);
/** @brief Returns the bounding box of the specified position.
The virtual character after the last character of the represented
text, i.e. the one at position length is a special case. It represents the
current input position and will therefore typically be queried by AT more
often than other positions. Because it does not represent an existing character
its bounding box is defined in relation to preceding characters. It should be
roughly equivalent to the bounding box of some character when inserted at the
end of the text. Its height typically being the maximal height of all the
characters in the text or the height of the preceding character, its width being
at least one pixel so that the bounding box is not degenerate.
Note that the index 'length' is not always valid. Whether it is or not is
implementation dependent. It typically is when text is editable or otherwise
when on the screen the caret can be placed behind the text. You can be sure
that the index is valid after you have received a ::IA2_EVENT_TEXT_CARET_MOVED
event for this index.
@param [in] offset
Index of the character for which to return its bounding box. The valid range
is 0..length. Refer to @ref _specialOffsets
"Special Offsets for use in the IAccessibleText and IAccessibleEditableText Methods"
for information about special offsets that can be used in %IAccessibleText methods.
@param [in] coordType
Specifies if the coordinates are relative to the screen or to the parent window.
@param [out] x
X coordinate of the top left corner of the bounding box of the referenced character.
@param [out] y
Y coordinate of the top left corner of the bounding box of the referenced character.
@param [out] width
Width of the bounding box of the referenced character.
@param [out] height
Height of the bounding box of the referenced character.
@retval S_OK
@retval E_INVALIDARG if bad [in] passed
*/
[propget] HRESULT characterExtents
(
[in] long offset,
[in] enum IA2CoordinateType coordType,
[out] long *x,
[out] long *y,
[out] long *width,
[out, retval] long *height
);
/** @brief Returns the number of active non-contiguous selections
@param [out] nSelections
@retval S_OK
*/
[propget] HRESULT nSelections
(
[out, retval] long *nSelections
);
/** @brief Returns the text position for the specified screen position.
Given a point return the zero-based index of the character under that
point. The same functionality could be achieved by using the bounding
boxes for each character as returned by IAccessibleText::characterExtents.
The method IAccessibleText::offsetAtPoint, however, can be implemented
more efficiently.
@param [in] x
The position's x value for which to look up the index of the character that
is rendered on to the display at that point.
@param [in] y
The position's y value for which to look up the index of the character that
is rendered on to the display at that point.
@param [in] coordType
Screen coordinates or window coordinates.
@param [out] offset
Index of the character under the given point or -1 if the point
is invalid or there is no character under the point.
@retval S_OK
@retval S_FALSE if nothing to return, [out] value is -1
@retval E_INVALIDARG if bad [in] passed
*/
[propget] HRESULT offsetAtPoint
(
[in] long x,
[in] long y,
[in] enum IA2CoordinateType coordType,
[out, retval] long *offset
);
/** @brief Returns the character offsets of Nth active text selection
Returns the 0-based starting and ending offsets of the Nth selection. If the
text is implemented as a tree of text objects with embed characters in higher
levels representing substrings of child text objects, consider the following.
If the starting selection offset is in one of the child text objects, then the
starting offset in the higher level text object would be at the embed character
representing the child text object that contains the starting selection offset.
If the ending selection offset is in one of the child text objects, then the
ending offset in the higher level text object would be just after the embed
character representing the child text object that contains the ending selection
offset.
For example, if the string "one two three" is implemented as a two text objects,
with a top level text object containing an embed character "one ? three" and a
child text object containing "two" and if the selection is the string "two" then:
<ul>
<li>the startOffset for the "one ? three" object would be 4, matching the embed character and the endOffset would be 5.</li>
<li>the startOffset for the "two" object would be 0, and the endOffset would be 3</li>
</ul>
Selection offsets are that of the character logically following it, e.g.
to the right of it in a left to right language or to the left of it in a right to left language.
@param [in] selectionIndex
Index of selection (0 based).
@param [out] startOffset
0 based offset of first selected character
@param [out] endOffset
0 based offset of one past the last selected character.
@retval S_OK
@retval E_INVALIDARG if bad [in] passed
*/
[propget] HRESULT selection
(
[in] long selectionIndex,
[out] long *startOffset,
[out, retval] long *endOffset
);
/** @brief Returns the substring between the two given indices.
The substring starts with the character at startOffset (inclusive) and up to
the character at endOffset (exclusive), if startOffset is less or equal
endOffset. If endOffset is lower than startOffset, the result is the same
as a call with the two arguments being exchanged.
The whole text can be requested by passing the indices zero and
IAccessibleText::nCharacters. If both indices have the same value, an empty
string is returned.
@param [in] startOffset
Index of the first character to include in the returned string. The valid range
is 0..length.
@param [in] endOffset
Index of the last character to exclude in the returned string. The valid range
is 0..length.
@param [out] text
Returns the substring starting with the character at startOffset (inclusive)
and up to the character at endOffset (exclusive), if startOffset is less than
or equal to endOffset.
@retval S_OK
@retval E_INVALIDARG if bad [in] passed
@note
@li The returned string may be longer than endOffset-startOffset bytes if text
contains multi-byte characters.
@li Refer to @ref _specialOffsets
"Special Offsets for use in the IAccessibleText and IAccessibleEditableText Methods"
for information about special offsets that can be used in %IAccessibleText methods.
*/
[propget] HRESULT text
(
[in] long startOffset,
[in] long endOffset,
[out, retval] BSTR *text
);
/** @brief Returns a text portion before the given position.
Returns the substring of the specified text type that is located before the
given character and does not include it. The result of this method should be
same as a result for IAccessibleText::textAtOffset with a suitably decreased
index value.
For example, if text type is ::IA2_TEXT_BOUNDARY_WORD, then the complete
word that is closest to and located before offset is returned.
If the index is valid, but no text is found, S_FALSE is returned along with out
values of 0, 0, and a NULL pointer. This would happen for boundary types other
than character when the text consists entirely of whitespace.
@param [in] offset
Index of the character for which to return the text part before it. The index
character will not be part of the returned string. The valid range is 0..length.
Refer to @ref _specialOffsets
"Special Offsets for use in the IAccessibleText and IAccessibleEditableText Methods"
for information about special offsets that can be used in %IAccessibleText methods.
@param [in] boundaryType
The type of the text portion to return. See ::IA2TextBoundaryType for the
complete list.
@param [out] startOffset
0 based offset of first character.
@param [out] endOffset
0 based offset of one past the last character.
@param [out] text
Returns the requested text portion. This portion may be empty or invalid when
no appropriate text portion is found or text type is invalid.
@retval S_OK
@retval S_FALSE if the requested boundary type is not implemented, such as
::IA2_TEXT_BOUNDARY_SENTENCE, or if there is nothing to return;
[out] values are 0s and NULL respectively
@retval E_INVALIDARG if bad [in] passed
*/
[propget] HRESULT textBeforeOffset
(
[in] long offset,
[in] enum IA2TextBoundaryType boundaryType,
[out] long *startOffset,
[out] long *endOffset,
[out, retval] BSTR *text
);
/** @brief Returns a text portion after the given position.
Returns the substring of the specified text type that is located after the
given character and does not include it. The result of this method should be
same as a result for IAccessibleText::textAtOffset with a suitably increased
index value.
For example, if text type is ::IA2_TEXT_BOUNDARY_WORD, then the complete
word that is closest to and located after offset is returned.
If the index is valid, but no text is found, S_FALSE is returned along with out
values of 0, 0, and a NULL pointer. This would happen for boundary types other
than character when the text consists entirely of whitespace.
@param [in] offset
Index of the character for which to return the text part after it. The index
character will not be part of the returned string. The valid range is 0..length.
Refer to @ref _specialOffsets
"Special Offsets for use in the IAccessibleText and IAccessibleEditableText Methods"
for information about special offsets that can be used in %IAccessibleText methods.
@param [in] boundaryType
The type of the text portion to return. See ::IA2TextBoundaryType for the complete
list.
@param [out] startOffset
0 based offset of first character.
@param [out] endOffset
0 based offset of one past the last character.
@param [out] text
Returns the requested text portion. This portion may be empty or invalid when
no appropriate text portion is found or text type is invalid.
@retval S_OK
@retval S_FALSE if the requested boundary type is not implemented, such as
::IA2_TEXT_BOUNDARY_SENTENCE, or if there is nothing to return;
[out] values are 0s and NULL respectively
@retval E_INVALIDARG if bad [in] passed
*/
[propget] HRESULT textAfterOffset
(
[in] long offset,
[in] enum IA2TextBoundaryType boundaryType,
[out] long *startOffset,
[out] long *endOffset,
[out, retval] BSTR *text
);
/** @brief Returns a text portion that spans the given position.
Returns the substring defined by the specified boundary type at the specified
offset. Refer to IA2TextBoundaryType for more details.
For the word boundary type the returned string will contain the word at the
offset if the offset is inside a word and will contain the word before the
offset if the offset is not inside a word. All offsets from the first to the
last characters of a word are considered inside the word. Boundary types of
sentence and paragraph should exhibit similar behavior.
If the index is valid, but no text is found, S_FALSE is returned along with out
values of 0, 0, and a NULL pointer. This would happen for boundary types other
than character when the text consists entirely of whitespace.
@param [in] offset
Index of the character for which to return the text part it belongs to. The valid
range is 0..length.
Refer to @ref _specialOffsets
"Special Offsets for use in the IAccessibleText and IAccessibleEditableText Methods"
for information about special offsets that can be used in %IAccessibleText methods.
@param [in] boundaryType
The type of the text portion to return. See ::IA2TextBoundaryType for the complete
list.
@param [out] startOffset
0 based offset of first character.
@param [out] endOffset
0 based offset of one past the last character.
@param [out] text
Returns the requested text portion. This portion may be empty or invalid when
no appropriate text portion is found or text type is invalid.
@retval S_OK
@retval S_FALSE if the requested boundary type is not implemented, such as
::IA2_TEXT_BOUNDARY_SENTENCE, or if there is nothing to return;
[out] values are 0s and NULL respectively
@retval E_INVALIDARG if bad [in] passed
*/
[propget] HRESULT textAtOffset
(
[in] long offset,
[in] enum IA2TextBoundaryType boundaryType,
[out] long *startOffset,
[out] long *endOffset,
[out, retval] BSTR *text
);
/** @brief Unselects a range of text.
@param [in] selectionIndex
Index of selection to remove (0 based).
@retval S_OK
@retval E_INVALIDARG if bad [in] passed
*/
HRESULT removeSelection
(
[in] long selectionIndex
);
/** @brief Sets the position of the caret.
The caret position/offset is that of the character logically following it,
e.g. to the right of it in a left to right language.
Setting the caret position may or may not alter the current selection. A
change of the selection is notified to the accessibility event listeners with
an ::IA2_EVENT_TEXT_SELECTION_CHANGED event.
When the new caret position differs from the old one (which, of course, is the
standard case) this is notified to the accessibility event listeners with an
::IA2_EVENT_TEXT_CARET_MOVED event.
@param [in] offset
The new index of the caret. This caret is actually placed to the left side of
the character with that index. An index of 0 places the caret so that the next
insertion goes before the first character. An index of IAccessibleText::nCharacters
leads to insertion after the last character. Refer to @ref _specialOffsets
"Special Offsets for use in the IAccessibleText and IAccessibleEditableText Methods"
for information about special offsets that can be used in %IAccessibleText methods.
@retval S_OK
@retval E_FAIL if the caret cannot be set
@retval E_INVALIDARG if bad [in] passed
*/
HRESULT setCaretOffset
(
[in] long offset
);
/** @brief Changes the bounds of an existing selection.
@param [in] selectionIndex
Index of selection to change (0 based)
@param [in] startOffset
New starting offset (0 based)
@param [in] endOffset
New ending offset (0 based) - the offset of the character just past the last character of the selection.
@retval S_OK
@retval E_INVALIDARG if bad [in] passed
@note Refer to @ref _specialOffsets
"Special Offsets for use in the IAccessibleText and IAccessibleEditableText Methods"
for information about special offsets that can be used in %IAccessibleText methods.
*/
HRESULT setSelection
(
[in] long selectionIndex,
[in] long startOffset,
[in] long endOffset
);
/** @brief Returns total number of characters.
Note that this may be different than the total number of bytes required to store the
text, if the text contains multi-byte characters.
@param [out] nCharacters
@retval S_OK
*/
[propget] HRESULT nCharacters
(
[out, retval] long *nCharacters
);
/** @brief Makes a specific part of string visible on screen.
@param [in] startIndex
0 based character offset.
@param [in] endIndex
0 based character offset - the offset of the character just past the last character of the string.
@param [in] scrollType
Defines where the object should be placed on the screen.
@retval S_OK
@retval E_INVALIDARG if bad [in] passed
@note Refer to @ref _specialOffsets
"Special Offsets for use in the IAccessibleText and IAccessibleEditableText Methods"
for information about special offsets that can be used in %IAccessibleText methods.
*/
HRESULT scrollSubstringTo
(
[in] long startIndex,
[in] long endIndex,
[in] enum IA2ScrollType scrollType
);
/** @brief Moves the top left of a substring to a specified location.
@param [in] startIndex
0 based character offset.
@param [in] endIndex
0 based character offset - the offset of the character just past the last character of the string.
@param [in] coordinateType
Specifies whether the coordinates are relative to the screen or the parent object.
@param [in] x
Defines the x coordinate.
@param [in] y
Defines the y coordinate.
@retval S_OK
@retval S_FALSE if the object is already at the specified location.
@retval E_INVALIDARG if bad [in] passed
@note Refer to @ref _specialOffsets
"Special Offsets for use in the IAccessibleText and IAccessibleEditableText Methods"
for information about special offsets that can be used in %IAccessibleText methods.
*/
HRESULT scrollSubstringToPoint
(
[in] long startIndex,
[in] long endIndex,
[in] enum IA2CoordinateType coordinateType,
[in] long x,
[in] long y
);
/** @brief Returns any inserted text.
Provided for use by the ::IA2_EVENT_TEXT_INSERTED and ::IA2_EVENT_TEXT_UPDATED
event handlers.
This data is only guaranteed to be valid while the thread notifying the event
continues. Once the handler has returned, the validity of the data depends on
how the server manages the life cycle of its objects. Also, note that the server
may have different life cycle management strategies for controls depending on
whether or not a control manages its children. Lists, trees, and tables can have
a large number of children and thus it's possible that the child objects for those
controls would only be created as needed. Servers should document their life cycle
strategy as this will be of interest to assistive technology or script engines
accessing data out of process or from other threads. Servers only need to save the
last inserted block of text and a scope of the entire application is adequate.
@param [out] newText
The text that was just inserted.
@retval S_OK
@retval S_FALSE If there is nothing to return, the values of IA2TextSegment
struct are set as follows: text = NULL, start = 0, end = 0.
*/
[propget] HRESULT newText
(
[out, retval] IA2TextSegment *newText
);
/** @brief Returns any removed text.
Provided for use by the IA2_EVENT_TEXT_REMOVED/UPDATED event handlers.
This data is only guaranteed to be valid while the thread notifying the event
continues. Once the handler has returned, the validity of the data depends on
how the server manages the life cycle of its objects. Also, note that the server
may have different life cycle management strategies for controls depending on
whether or not a control manages its children. Lists, trees, and tables can have
a large number of children and thus it's possible that the child objects for those
controls would only be created as needed. Servers should document their life cycle
strategy as this will be of interest to assistive technology or script engines
accessing data out of process or from other threads. Servers only need to save the
last removed block of text and a scope of the entire application is adequate.
@param [out] oldText
The text that was just removed.
@retval S_OK
@retval S_FALSE If there is nothing to return, the values of IA2TextSegment
struct are set as follows: text = NULL, start = 0, end = 0.
*/
[propget] HRESULT oldText
(
[out, retval] IA2TextSegment *oldText
);
}
/*************************************************************************
*
* File Name (AccessibleText2.idl)
*
* IAccessible2 IDL Specification
*
* Copyright (c) 2007, 2013 Linux Foundation
* Copyright (c) 2006 IBM Corporation
* Copyright (c) 2000, 2006 Sun Microsystems, Inc.
* All rights reserved.
*
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* 3. Neither the name of the Linux Foundation nor the names of its
* contributors may be used to endorse or promote products
* derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This BSD License conforms to the Open Source Initiative "Simplified
* BSD License" as published at:
* http://www.opensource.org/licenses/bsd-license.php
*
* IAccessible2 is a trademark of the Linux Foundation. The IAccessible2
* mark may be used in accordance with the Linux Foundation Trademark
* Policy to indicate compliance with the IAccessible2 specification.
*
************************************************************************/
/** @brief This interface gives read-only access to text.
The %IAccessibleText2 interface extends the functionality of the
%IAccessibleText interface.
*/
[object, uuid(9690A9CC-5C80-4DF5-852E-2D5AE4189A54)]
interface IAccessibleText2 : IAccessibleText
{
/** @brief Returns the range and of the specified set of attributes.
Return the range (start and end offsets) and text attributes that correspond
to the given attributes filter at the given offset.
@param [in] offset
The offset at which to search for the attributes specified in the filter.
@param [in] filter
The requested attribute names. The filter format is "attribute1, attribute2".
@param [out] startOffset
The starting (0-based) offset of the text containing the specified attributes.
@param [out] endOffset
The (0-based) offset one past the last character of the text containing the
specified attributes.
@param [out] attributeValues
The values of the requested attributes.
@retval S_OK
@retval S_FALSE if nothing to return, [out] values are -1, -1, NULL respectively.
@retval E_INVALIDARG if bad [in] passed.
*/
[propget] HRESULT attributeRange
(
[in] long offset,
[in] BSTR filter,
[out] long *startOffset,
[out] long *endOffset,
[out, retval] BSTR *attributeValues
);
}
/*************************************************************************
*
* File Name (AccessibleEditableText.idl)
*
* IAccessible2 IDL Specification
*
* Copyright (c) 2007, 2012 Linux Foundation
* Copyright (c) 2006 IBM Corporation
* Copyright (c) 2000, 2006 Sun Microsystems, Inc.
* All rights reserved.
*
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* 3. Neither the name of the Linux Foundation nor the names of its
* contributors may be used to endorse or promote products
* derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This BSD License conforms to the Open Source Initiative "Simplified
* BSD License" as published at:
* http://www.opensource.org/licenses/bsd-license.php
*
* IAccessible2 is a trademark of the Linux Foundation. The IAccessible2
* mark may be used in accordance with the Linux Foundation Trademark
* Policy to indicate compliance with the IAccessible2 specification.
*
************************************************************************/
/** @brief This interface provides clipboard capability to text objects.
This interface is typically used in conjunction with the IAccessibleText
interface and complements that interface with the additional capability of
clipboard operations. Note that even a read only text object can support
the copy capability so this interface is not limited to editable objects.
The substrings used with this interface are specified as follows:
If startOffset is less than endOffset, the substring starts with the
character at startOffset and ends with the character just before endOffset.
If endOffset is lower than startOffset, the result is the same as a call
with the two arguments exchanged. The whole text can be defined by passing
the indices zero and IAccessibleText::nCharacters. If both indices have the
same value, an empty string is defined.
Refer to the @ref _specialOffsets
"Special Offsets for use in the IAccessibleText and IAccessibleEditableText Methods"
for information about a special offset constant that can be used in %IAccessibleEditableText methods.
*/
[object, uuid(A59AA09A-7011-4b65-939D-32B1FB5547E3)]
interface IAccessibleEditableText : IUnknown
{
/** @brief Copies the text range into the clipboard.
The selection is set to the specified offsets and then selection is copied into
the system clipboard.
@param [in] startOffset
Start index of the text to moved into the clipboard.
The valid range is 0..length.
@param [in] endOffset
End index of the text to moved into the clipboard.
The valid range is 0..length.
@retval S_OK
@retval E_INVALIDARG if bad [in] passed
@note Refer to @ref _specialOffsets
"Special Offsets for use in the IAccessibleText and IAccessibleEditableText Methods"
for information about special offsets that can be used in %IAccessibleEditableText
methods.
@deprecated This function is available via the application's GUI.
*/
HRESULT copyText
(
[in] long startOffset,
[in] long endOffset
);
/** @brief Deletes a range of text.
The text between and including the two given indices is deleted
from the text represented by this object.
@param [in] startOffset
Start index of the text to be deleted.
The valid range is 0..length.
@param [in] endOffset
End index of the text to be deleted.
The valid range is 0..length.
@retval S_OK
@retval E_INVALIDARG if bad [in] passed
@note Refer to @ref _specialOffsets
"Special Offsets for use in the IAccessibleText and IAccessibleEditableText Methods"
for information about special offsets that can be used in %IAccessibleEditableText
methods.
*/
HRESULT deleteText
(
[in] long startOffset,
[in] long endOffset
);
/** @brief Inserts text at the specified position.
The specified string is inserted at the given index into the text
represented by this object.
@param [in] offset
Index at which to insert the text.
The valid range is 0..length.
Refer to @ref _specialOffsets
"Special Offsets for use in the IAccessibleText and IAccessibleEditableText Methods"
for information about special offsets that can be used in %IAccessibleEditableText
methods.
@param [in] text
Text that is inserted.
@retval S_OK
@retval E_INVALIDARG if bad [in] passed
*/
HRESULT insertText
(
[in] long offset,
[in] BSTR *text
);
/** @brief Deletes a range of text and copies it to the clipboard.
The selection is set to the specified offsets, the selection is then copied into
the system clipboard, and then the selection is deleted.
@param [in] startOffset
Start index of the text to be deleted.
The valid range is 0..length.
@param [in] endOffset
End index of the text to be deleted.
The valid range is 0..length.
@retval S_OK
@retval E_INVALIDARG if bad [in] passed
@note Refer to @ref _specialOffsets
"Special Offsets for use in the IAccessibleText and IAccessibleEditableText Methods"
for information about special offsets that can be used in %IAccessibleEditableText
methods.
@deprecated This function is available via the application's GUI.
*/
HRESULT cutText
(
[in] long startOffset,
[in] long endOffset
);
/** @brief Pastes content from the clipboard.
Any existing selection is removed, the clipboard content is then pasted into
this object's text at the given offset. This method is similar to the insertText
method. If the index is not valid the system clipboard content is not inserted. The
behavior is the same as when Ctrl+V is used, i.e. the pasted contents are not
necessarily plain text.
@param [in] offset
Index at which to insert the content from the system clipboard into
the text represented by this object.
The valid range is 0..length.
Refer to @ref _specialOffsets
"Special Offsets for use in the IAccessibleText and IAccessibleEditableText Methods"
for information about special offsets that can be used in %IAccessibleEditableText
methods.
@retval S_OK
@retval E_INVALIDARG if bad [in] passed
@deprecated This function is available via the application's GUI.
*/
HRESULT pasteText
(
[in] long offset
);
/** @brief Replaces text.