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diff --git a/src/corelib/doc/snippets/statemachine/main2.cpp b/src/corelib/doc/snippets/statemachine/main2.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** This file is part of the documentation of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+** * Redistributions of source code must retain the above copyright
+** notice, this list of conditions and the following disclaimer.
+** * Redistributions in binary form must reproduce the above copyright
+** notice, this list of conditions and the following disclaimer in
+** the documentation and/or other materials provided with the
+** distribution.
+** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+** the names of its contributors may be used to endorse or promote
+** products derived from this software without specific prior written
+** permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui>
+
+int main(int argv, char **args)
+{
+ QApplication app(argv, args);
+
+ QStateMachine machine;
+
+//![0]
+ QState *s1 = new QState();
+ QState *s11 = new QState(s1);
+ QState *s12 = new QState(s1);
+ QState *s13 = new QState(s1);
+ s1->setInitialState(s11);
+ machine.addState(s1);
+//![0]
+
+//![2]
+ s12->addTransition(quitButton, SIGNAL(clicked()), s12);
+//![2]
+
+//![1]
+ QFinalState *s2 = new QFinalState();
+ s1->addTransition(quitButton, SIGNAL(clicked()), s2);
+ machine.addState(s2);
+
+ QObject::connect(&machine, SIGNAL(finished()), QApplication::instance(), SLOT(quit()));
+//![1]
+
+ QButton *interruptButton = new QPushButton("Interrupt Button");
+ QWidget *mainWindow = new QWidget();
+
+//![3]
+ QHistoryState *s1h = new QHistoryState(s1);
+
+ QState *s3 = new QState();
+ s3->assignProperty(label, "text", "In s3");
+ QMessageBox *mbox = new QMessageBox(mainWindow);
+ mbox->addButton(QMessageBox::Ok);
+ mbox->setText("Interrupted!");
+ mbox->setIcon(QMessageBox::Information);
+ QObject::connect(s3, SIGNAL(entered()), mbox, SLOT(exec()));
+ s3->addTransition(s1h);
+ machine.addState(s3);
+
+ s1->addTransition(interruptButton, SIGNAL(clicked()), s3);
+//![3]
+
+ return app.exec();
+}
+