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diff --git a/examples/network/loopback/dialog.h b/examples/network/loopback/dialog.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 examples 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 DIALOG_H
+#define DIALOG_H
+
+#include <QDialog>
+#include <QTcpServer>
+#include <QTcpSocket>
+
+QT_BEGIN_NAMESPACE
+class QDialogButtonBox;
+class QLabel;
+class QProgressBar;
+class QPushButton;
+class QTcpServer;
+class QTcpSocket;
+QT_END_NAMESPACE
+
+class Dialog : public QDialog
+{
+    Q_OBJECT
+
+public:
+    Dialog(QWidget *parent = 0);
+
+public slots:
+    void start();
+    void acceptConnection();
+    void startTransfer();
+    void updateServerProgress();
+    void updateClientProgress(qint64 numBytes);
+    void displayError(QAbstractSocket::SocketError socketError);
+
+private:
+    QProgressBar *clientProgressBar;
+    QProgressBar *serverProgressBar;
+    QLabel *clientStatusLabel;
+    QLabel *serverStatusLabel;
+    QPushButton *startButton;
+    QPushButton *quitButton;
+    QDialogButtonBox *buttonBox;
+
+    QTcpServer tcpServer;
+    QTcpSocket tcpClient;
+    QTcpSocket *tcpServerConnection;
+    int bytesToWrite;
+    int bytesWritten;
+    int bytesReceived;
+};
+
+#endif