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diff --git a/src/widgets/kernel/qwhatsthis.h b/src/widgets/kernel/qwhatsthis.h
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+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** This file may be used under the terms of the GNU Lesser General Public
+** License version 2.1 as published by the Free Software Foundation and
+** appearing in the file LICENSE.LGPL included in the packaging of this
+** file. Please review the following information to ensure the GNU Lesser
+** General Public License version 2.1 requirements will be met:
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 as published by the Free Software Foundation
+** and appearing in the file LICENSE.GPL included in the packaging of this
+** file. Please review the following information to ensure the GNU General
+** Public License version 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QWHATSTHIS_H
+#define QWHATSTHIS_H
+
+#include <QtCore/qobject.h>
+#include <QtGui/qcursor.h>
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+QT_MODULE(Gui)
+
+#ifndef QT_NO_WHATSTHIS
+
+class QAction;
+#ifdef QT3_SUPPORT
+class QToolButton;
+#endif
+
+class Q_WIDGETS_EXPORT QWhatsThis
+{
+    QWhatsThis();
+
+public:
+    static void enterWhatsThisMode();
+    static bool inWhatsThisMode();
+    static void leaveWhatsThisMode();
+
+    static void showText(const QPoint &pos, const QString &text, QWidget *w = 0);
+    static void hideText();
+
+    static QAction *createAction(QObject *parent = 0);
+
+#ifdef QT3_SUPPORT
+    static QT3_SUPPORT void add(QWidget *w, const QString &s);
+    static QT3_SUPPORT void remove(QWidget *);
+    static QT3_SUPPORT QToolButton *whatsThisButton(QWidget *parent);
+#endif
+};
+
+#endif // QT_NO_WHATSTHIS
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif // QWHATSTHIS_H