gdiplus: Stub for GdipFlush.
diff --git a/dlls/gdiplus/gdiplus.spec b/dlls/gdiplus/gdiplus.spec
index 70864ba..3d01c16 100644
--- a/dlls/gdiplus/gdiplus.spec
+++ b/dlls/gdiplus/gdiplus.spec
@@ -234,7 +234,7 @@
 @ stdcall GdipFindFirstImageItem(ptr ptr)
 @ stub GdipFindNextImageItem
 @ stub GdipFlattenPath
-@ stub GdipFlush
+@ stdcall GdipFlush(long)
 @ stdcall GdipFree(ptr)
 @ stub GdipGetAdjustableArrowCapFillState
 @ stub GdipGetAdjustableArrowCapHeight
diff --git a/dlls/gdiplus/graphics.c b/dlls/gdiplus/graphics.c
index 45794f0..5716341 100644
--- a/dlls/gdiplus/graphics.c
+++ b/dlls/gdiplus/graphics.c
@@ -1957,6 +1957,19 @@
     return ret;
 }
 
+GpStatus WINGDIPAPI GdipFlush(GpGraphics *graphics, GpFlushIntention intention)
+{
+    static int calls;
+
+    if(!graphics)
+        return InvalidParameter;
+
+    if(!(calls++))
+        FIXME("not implemented\n");
+
+    return NotImplemented;
+}
+
 /* FIXME: Compositing mode is not used anywhere except the getter/setter. */
 GpStatus WINGDIPAPI GdipGetCompositingMode(GpGraphics *graphics,
     CompositingMode *mode)