(define-gboxed-variant-cstruct event "GdkEvent"
  (type event-type)
  (window (g:object window))
  (send-event (:boolean :int8))
  (:variant type
            ...
            ((:expose) event-expose
             (area rectangle :inline t)
             (region (:pointer (:struct cairo:region-t)))
             (count :int))
  ... ))  

type

The gdk:event-type type of the event.

window

The gdk:window object which received the event.

send-event

True if the event was sent explicitly.

area

Bounding gdk:rectangle box of the region.

region

The region of type cairo:region-t that needs to be redrawn.

count

The number of contiguous expose events following this one. The only use for this is "exposure compression", that is handling all contiguous expose events in one go, though GDK performs some exposure compression so this is not normally needed.