A structure passed to callbacks registered using cogl_onscreen_add_dirty_callback(). The members describe a rectangle within the onscreen buffer that should be redrawn.
Height of the dirty rectangle
Width of the dirty rectangle
Left edge of the dirty rectangle
Top edge of the dirty rectangle, measured from the top of the window
A structure passed to callbacks registered using cogl_onscreen_add_dirty_callback(). The members describe a rectangle within the onscreen buffer that should be redrawn.