fCurrentClipping
fCurrentClipping = *region;
fCurrentClipping.MakeEmpty();
if (dst && fCurrentClipping.Frame().IsValid()) {
int32 clipBoxCount = fCurrentClipping.CountRects();
clipping_rect rect = fCurrentClipping.RectAtInt(i);
clipping_rect rect = fCurrentClipping.RectAtInt(i);
BRegion fCurrentClipping;