signal callback delegate or function to connect
bool callback(gdk.event_any.EventAny event, gtk.widget.Widget widget)
event the #GdkEventAny which triggered this signal. (optional)
widget the instance the signal is connected to (optional)
Returns true to stop other handlers from being invoked for the event. false to propagate the event further.
Yes.After to execute callback after default handler, No.After to execute before (default)
Signal ID
Connect to MapEvent signal.
The ::map-event signal will be emitted when the widget's window is mapped. A window is mapped when it becomes visible on the screen.
To receive this signal, the #GdkWindow associated to the widget needs to enable the #GDK_STRUCTURE_MASK mask. GDK will enable this mask automatically for all new windows.