A #GstEvent to inspect.
Pointer to a gint that will receive the button number associated with the event.
Pointer to a gdouble to receive the x coordinate of the mouse button event.
Pointer to a gdouble to receive the y coordinate of the mouse button event.
TRUE if the button number and both coordinates could be extracted, otherwise FALSE.
Retrieve the details of either a #GstNavigation mouse button press event or a mouse button release event. Determine which type the event is using gstvideo.navigation.Navigation.eventGetType to retrieve the #GstNavigationEventType.