gdiplus: Stub for GdipFlush.
diff --git a/include/gdiplusgpstubs.h b/include/gdiplusgpstubs.h
index 9f7d092..c5e676d 100644
--- a/include/gdiplusgpstubs.h
+++ b/include/gdiplusgpstubs.h
@@ -81,5 +81,6 @@
 typedef Point GpPoint;
 typedef WrapMode GpWrapMode;
 typedef Color GpColor;
+typedef FlushIntention GpFlushIntention;
 
 #endif