gdiplus: Add stubs for a few region functions.
diff --git a/include/gdiplusflat.h b/include/gdiplusflat.h
index 0903637..87135e3 100644
--- a/include/gdiplusflat.h
+++ b/include/gdiplusflat.h
@@ -389,9 +389,16 @@
 GpStatus WINGDIPAPI GdipGetDpiX(GpGraphics*,REAL*);
 GpStatus WINGDIPAPI GdipGetDpiY(GpGraphics*,REAL*);
 
+GpStatus WINGDIPAPI GdipCombineRegionRect(GpRegion *, GDIPCONST GpRectF *, CombineMode);
+GpStatus WINGDIPAPI GdipCombineRegionRectI(GpRegion *, GDIPCONST GpRect *, CombineMode);
+GpStatus WINGDIPAPI GdipCombineRegionRegion(GpRegion *, GpRegion *, CombineMode);
 GpStatus WINGDIPAPI GdipCreateRegion(GpRegion **);
 GpStatus WINGDIPAPI GdipCreateRegionPath(GpPath *, GpRegion **);
+GpStatus WINGDIPAPI GdipCreateRegionRect(GDIPCONST GpRectF *, GpRegion **);
+GpStatus WINGDIPAPI GdipCreateRegionRectI(GDIPCONST GpRect *, GpRegion **);
 GpStatus WINGDIPAPI GdipDeleteRegion(GpRegion *);
+GpStatus WINGDIPAPI GdipGetRegionData(GpRegion *, BYTE *, UINT, UINT *);
+GpStatus WINGDIPAPI GdipGetRegionDataSize(GpRegion *, UINT *);
 GpStatus WINGDIPAPI GdipGetRegionHRgn(GpRegion *, GpGraphics *, HRGN *);
 GpStatus WINGDIPAPI GdipSetEmpty(GpRegion *);
 GpStatus WINGDIPAPI GdipSetInfinite(GpRegion *);