bounding box of region.
the number of contiguous %GDK_EXPOSE events following this one. The only use for this is “exposure compression”, i.e. handling all contiguous %GDK_EXPOSE events in one go, though GDK performs some exposure compression so this is not normally needed.
the region that needs to be redrawn.
%TRUE if the event was sent explicitly.
the type of the event (%GDK_EXPOSE or %GDK_DAMAGE).
the window which received the event.
Generated when all or part of a window becomes visible and needs to be redrawn.