- Event sender.
- Event arguments.
The Widget.ChildNotified event utilizes this delegate:
Event data is passed via the Gtk.ChildNotifiedArgs parameter.
To attach a Gtk.ChildNotifiedHandler to an event, add the ChildNotifiedHandler instance to the event. The methods referenced by the ChildNotifiedHandler instance are invoked whenever the event is raised, until the ChildNotifiedHandler is removed from the event.