The ::visibility-notify-event will be emitted when the widget's window
is obscured or unobscured.
To receive this signal the GdkWindow associated to the widget needs
to enable the GDK_VISIBILITY_NOTIFY_MASK mask.
TRUE to stop other handlers from being invoked for the event.
FALSE to propagate the event further.
The ::visibility-notify-event will be emitted when the widget's window is obscured or unobscured. To receive this signal the GdkWindow associated to the widget needs to enable the GDK_VISIBILITY_NOTIFY_MASK mask. TRUE to stop other handlers from being invoked for the event. FALSE to propagate the event further.