VOID FASTCALL CLIPPING_UpdateGCRegion(DC* Dc);
VOID FASTCALL IntGdiReleaseRaoRgn(PDC);
VOID FASTCALL IntGdiReleaseVisRgn(PDC);
+VOID FASTCALL UpdateVisRgn(PDC);
+BOOL FASTCALL REGION_bCopy(PREGION,PREGION);
+BOOL FASTCALL REGION_bIntersectRegion(PREGION,PREGION,PREGION);
+int FASTCALL IntGdiExtSelectClipRect(PDC,PRECTL,int);