--- a/src/gui/painting/qwindowsurface_qws_p.h	Fri Apr 16 15:50:13 2010 +0300
+++ b/src/gui/painting/qwindowsurface_qws_p.h	Mon May 03 13:17:34 2010 +0300
@@ -176,6 +176,8 @@
     QImage image() const { return img; }
     QPoint painterOffset() const;
 
+    void beginPaint(const QRegion &rgn);
+
     bool lock(int timeout = -1);
     void unlock();