gdiplus: Add a stub for GdipSetEmpty.

dlls/gdiplus/Makefile.in

@@ -19,6 +19,7 @@ C_SRCS = \
 	matrix.c \
 	pathiterator.c \
 	pen.c \
+	region.c \
 	stringformat.c
 
 @MAKE_DLL_RULES@

dlls/gdiplus/gdiplus.spec

@@ -520,7 +520,7 @@
 @ stdcall GdipSetCustomLineCapStrokeJoin(ptr long)
 @ stdcall GdipSetCustomLineCapWidthScale(ptr long)
 @ stdcall GdipSetEffectParameters(ptr ptr long)
-@ stub GdipSetEmpty
+@ stdcall GdipSetEmpty(ptr)
 @ stub GdipSetImageAttributesCachedBackground
 @ stdcall GdipSetImageAttributesColorKeys(ptr long long long long)
 @ stdcall GdipSetImageAttributesColorMatrix(ptr long long ptr ptr long)

dlls/gdiplus/region.c

@@ -0,0 +1,41 @@
+/*
+ * Copyright (C) 2008 Google (Lei Zhang)
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+#include <stdarg.h>
+
+#include "windef.h"
+#include "winbase.h"
+#include "wingdi.h"
+
+#include "objbase.h"
+
+#include "gdiplus.h"
+#include "gdiplus_private.h"
+#include "wine/debug.h"
+
+WINE_DEFAULT_DEBUG_CHANNEL(gdiplus);
+
+GpStatus WINGDIPAPI GdipSetEmpty(GpRegion *region)
+{
+    static int calls;
+
+    if(!(calls++))
+        FIXME("not implemented\n");
+
+    return NotImplemented;
+}