tests/emscripten_hide_mouse.c

#include <stdio.h>
#include <assert.h>
#include <emscripten/emscripten.h>
#include <emscripten/html5.h>

EM_BOOL mouse_callback(int eventType, const EmscriptenMouseEvent *e, void *userData)
{
	printf("Mouse click on canvas.\n");
#ifdef REPORT_RESULT
	REPORT_RESULT(0);
#endif
	return 0;
}

int main()
{
	printf("The mouse cursor should be hidden when hovering over the canvas rectangle. Click on the canvas to finish test.\n");
	emscripten_hide_mouse();
	EMSCRIPTEN_RESULT ret = emscripten_set_click_callback("#canvas", 0, 1, mouse_callback);
	assert(ret == 0);
	EM_ASM(Module['noExitRuntime'] = true);
}