signal callback delegate or function to connect
bool callback(gtk.widget.Widget widget)
widget the instance the signal is connected to (optional)
Returns true if a menu was activated
Yes.After to execute callback after default handler, No.After to execute before (default)
Signal ID
Connect to PopupMenu signal.
This signal gets emitted whenever a widget should pop up a context menu. This usually happens through the standard key binding mechanism; by pressing a certain key while a widget is focused, the user can cause the widget to pop up a menu. For example, the #GtkEntry widget creates a menu with clipboard commands. See the [Popup Menu Migration Checklist][checklist-popup-menu] for an example of how to use this signal.