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diff --git a/src/gui/embedded/qwslock_p.h b/src/gui/embedded/qwslock_p.h
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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, 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 1.0, 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.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QWSLOCK_P_H
+#define QWSLOCK_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  This header file may
+// change from version to version without notice, or even be
+// removed.
+//
+// We mean it.
+//
+
+#include <qglobal.h>
+
+QT_BEGIN_NAMESPACE
+
+#ifndef QT_NO_QWS_MULTIPROCESS
+
+class QWSLock
+{
+public:
+    enum LockType { BackingStore, Communication, RegionEvent };
+
+    QWSLock();
+    QWSLock(int lockId);
+    ~QWSLock();
+
+    bool lock(LockType type, int timeout = -1);
+    void unlock(LockType type);
+    bool wait(LockType type, int timeout = -1);
+    bool hasLock(LockType type);
+    int id() const { return semId; }
+
+private:
+    int semId;
+    int lockCount[2];
+};
+
+
+QT_END_NAMESPACE
+#endif // QT_NO_QWS_MULTIPROCESS
+#endif // QWSLOCK_P_H