gtk:window-propagate-key-event (window event)

window -- a gtk:window widget
event -- a gdk:event-key event

True if a widget in the focus chain handled the event.

Propagate a key press or release event to the focus widget and up the focus container chain until a widget handles the event. This is normally called by the default "key-press-event" and "key-release-event" signal handlers for toplevel windows, however in some cases it may be useful to call this directly when overriding the standard key handling for a toplevel window.