The VideoLAN Forums

Posted: **12 Jul 2010 11:23**

Whether it is possible to handle mouse events in QWidget (Qt4) with usage libVLC 1.1.0 (in particulary click of right mouse button for show popup menu)? Now libVLC swallows all mouse events.

Posted: **12 Jul 2010 17:36**

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libvlc_video_set_mouse_input(mp, false);

before playback is started should work, at least on X11 systems.

Posted: **13 Jul 2010 12:50**

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libvlc_video_set_mouse_input(mp, false);
before playback is started should work, at least on X11 systems.

Has not helped.

The cursor only hides at

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libvlc_video_set_mouse_input(mp, false);

Interruptions in one of these functions do not occur:

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bool VideoWidget::winEvent(MSG * message, long * result)
{
	if (message->message == WM_LBUTTONDOWN )
	{
	}

	return QWidget::winEvent(message, result);
}


void VideoWidget::mouseDoubleClickEvent(QMouseEvent *event)
{
	;
}

As a descriptor I have transferred to libVLC a descriptor of VideWidget:

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libvlc_media_player_set_hwnd (_mp, (void*) this->winId());

Posted: **13 Jul 2010 17:55**

Unlike Linux, disabling mouse events on Win32 at vlc level (libvlc_video_set_mouse_input(mp, false)) _only_ disables mouse interaction. There is no built-in propagation flag that allows the system to get up the hierarchy of windows till one is interested in processing such events.

As of today, for retrieving mouse events on Win32, the only way is to use system-wide hooks (as described on http://msdn.microsoft.com/en-us/library ... 85%29.aspx). This works very fine, though it is a bit complicated.

Erwan10

Posted: **14 Jul 2010 08:47**

Thanks for the answer, I'll try it. And will it be fixed for Win32 platform in the next versions?

Posted: **14 Jul 2010 10:22**

Thanks for the answer, I'll try it. And will it be fixed for Win32 platform in the next versions?

Well, there is no real bug. And what you wish to do is 100% available.

It is just that, had vlc been designed to reuse the main GUI thread for video subwindows, the libvlc developpers would have been able to access those mouse events through their event loop. That would have been a lot simpler.

Will this design change ? I don't know (it's not a trivial thing to do)

Erwan10

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