gtkPropagateEvent: gtkPropagateEvent
Description
Sends an event to a widget, propagating the event to parent widgets
if the event remains unhandled. Events received by GTK+ from GDK
normally begin in gtkMainDoEvent. Depending on the type of
event, existence of modal dialogs, grabs, etc., the event may be
propagated; if so, this function is used. gtkPropagateEvent
calls gtkWidgetEvent on each widget it decides to send the
event to. So gtkWidgetEvent is the lowest-level function; it
simply emits the "event" and possibly an event-specific signal on a
widget. gtkPropagateEvent is a bit higher-level, and
gtkMainDoEvent is the highest level.Usage
gtkPropagateEvent(object, event)
Details
All that said, you most likely don't want to use any of these
functions; synthesizing events is rarely needed. Consider asking on
the mailing list for better ways to achieve your goals. For
example, use gdkWindowInvalidateRect or
gtkWidgetQueueDraw instead of making up expose events.