/****************************************************************************+
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**+
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).+
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** All rights reserved.+
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** Contact: Nokia Corporation (qt-info@nokia.com)+
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**+
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** This file is part of the documentation of the Qt Toolkit.+
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**+
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** $QT_BEGIN_LICENSE:LGPL$+
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** No Commercial Usage+
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** This file contains pre-release code and may not be distributed.+
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** You may use this file in accordance with the terms and conditions+
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** contained in the Technology Preview License Agreement accompanying+
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** this package.+
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**+
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** GNU Lesser General Public License Usage+
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** Alternatively, this file may be used under the terms of the GNU Lesser+
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** General Public License version 2.1 as published by the Free Software+
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** Foundation and appearing in the file LICENSE.LGPL included in the+
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** packaging of this file.  Please review the following information to+
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** ensure the GNU Lesser General Public License version 2.1 requirements+
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.+
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**+
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** In addition, as a special exception, Nokia gives you certain additional+
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** rights.  These rights are described in the Nokia Qt LGPL Exception+
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.+
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**+
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** If you have questions regarding the use of this file, please contact+
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** Nokia at qt-info@nokia.com.+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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+
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#include <QLabel>+
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#include <QPushButton>+
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+
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#include "qtcast.h"+
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+
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MyWidget::MyWidget()+
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{+
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//! [0]+
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    QObject *obj = new MyWidget;+
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//! [0]+
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+
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//! [1]+
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    QWidget *widget = qobject_cast<QWidget *>(obj);+
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//! [1]+
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+
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//! [2]+
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    MyWidget *myWidget = qobject_cast<MyWidget *>(obj);+
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//! [2]+
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+
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//! [3]+
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    QLabel *label = qobject_cast<QLabel *>(obj);+
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//! [3] //! [4]+
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    // label is 0+
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//! [4]+
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+
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//! [5]+
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    if (QLabel *label = qobject_cast<QLabel *>(obj)) {+
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//! [5] //! [6]+
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        label->setText(tr("Ping"));+
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    } else if (QPushButton *button = qobject_cast<QPushButton *>(obj)) {+
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        button->setText(tr("Pong!"));+
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    }+
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//! [6]+
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}+
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+
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int main()+
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{+
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    return 0;+
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}+
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