diff -r 41300fa6a67c -r f7bc934e204c src/opengl/qglpaintdevice.cpp
--- a/src/opengl/qglpaintdevice.cpp	Tue Feb 02 00:43:10 2010 +0200
+++ b/src/opengl/qglpaintdevice.cpp	Wed Mar 31 11:06:36 2010 +0300
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
@@ -128,6 +128,11 @@
     return context()->format();
 }
 
+bool QGLPaintDevice::alphaRequested() const
+{
+    return context()->d_func()->reqFormat.alpha();
+}
+