gdiplus: Added GdipSetPenStartCap.
diff --git a/include/gdiplusflat.h b/include/gdiplusflat.h
index d181825..31d973b 100644
--- a/include/gdiplusflat.h
+++ b/include/gdiplusflat.h
@@ -38,6 +38,7 @@
 GpStatus WINGDIPAPI GdipSetPenLineCap197819(GpPen*,GpLineCap,GpLineCap,GpDashCap);
 GpStatus WINGDIPAPI GdipSetPenLineJoin(GpPen*,GpLineJoin);
 GpStatus WINGDIPAPI GdipSetPenMiterLimit(GpPen*,REAL);
+GpStatus WINGDIPAPI GdipSetPenStartCap(GpPen*,GpLineCap);
 
 GpStatus WINGDIPAPI GdipCreateFromHDC(HDC,GpGraphics**);
 GpStatus WINGDIPAPI GdipCreateFromHWND(HWND,GpGraphics**);