This will post a "prepare-window-handle" element message on the bus to give applications an opportunity to call gstvideo.video_overlay.VideoOverlay.setWindowHandle before a plugin creates its own window.
This function should only be used by video overlay plugin developers.
This will post a "prepare-window-handle" element message on the bus to give applications an opportunity to call gstvideo.video_overlay.VideoOverlay.setWindowHandle before a plugin creates its own window.
This function should only be used by video overlay plugin developers.