diff -r 41300fa6a67c -r f7bc934e204c src/gui/widgets/qdialogbuttonbox.cpp
--- a/src/gui/widgets/qdialogbuttonbox.cpp	Tue Feb 02 00:43:10 2010 +0200
+++ b/src/gui/widgets/qdialogbuttonbox.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)
 **
@@ -1017,6 +1017,8 @@
     If the button has already been added, it is removed and added again with the
     new role.
 
+    \note The button box takes ownership of the button.
+
     \sa removeButton(), clear()
 */
 void QDialogButtonBox::addButton(QAbstractButton *button, ButtonRole role)