_TriggerWindowRedrawing
_TriggerWindowRedrawing(dirtyRegion, exposeRegion);
_TriggerWindowRedrawing(dirty, dirty);
_TriggerWindowRedrawing(dirty, dirty);
void _TriggerWindowRedrawing(
_TriggerWindowRedrawing(region);
void _TriggerWindowRedrawing(BRegion* newDirtyRegion);