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diff --git a/src/dbus/doc/snippets/code/doc_src_qdbusadaptors.cpp b/src/dbus/doc/snippets/code/doc_src_qdbusadaptors.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."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//! [0]
+class MainApplicationAdaptor: public QDBusAbstractAdaptor
+{
+    Q_OBJECT
+    Q_CLASSINFO("D-Bus Interface", "org.kde.DBus.MainApplication")
+    Q_PROPERTY(QString caption READ caption WRITE setCaption)
+    Q_PROPERTY(QString organizationName READ organizationName)
+    Q_PROPERTY(QString organizationDomain READ organizationDomain)
+
+private:
+    QApplication *app;
+
+public:
+    MainApplicationAdaptor(QApplication *application)
+        : QDBusAbstractAdaptor(application), app(application)
+    {
+        connect(application, SIGNAL(aboutToQuit()), SIGNAL(aboutToQuit()));
+        connect(application, SIGNAL(focusChanged(QWidget*, QWidget*)),
+                SLOT(focusChangedSlot(QWidget*, QWidget*)));
+    }
+
+    QString caption()
+    {
+        if (app->hasMainWindow())
+            return app->mainWindow()->caption();
+        return QString(""); // must not return a null QString
+    }
+
+    void setCaption(const QString &newCaption)
+    {
+        if (app->hasMainWindow())
+            app->mainWindow()->setCaption(newCaption);
+    }
+
+    QString organizationName()
+    {
+        return app->organizationName();
+    }
+
+    QString organizationDomain()
+    {
+        return app->organizationDomain();
+    }
+
+public slots:
+    Q_NOREPLY void quit()
+    { app->quit(); }
+
+    void reparseConfiguration()
+    { app->reparseConfiguration(); }
+
+    QString mainWindowObject()
+    {
+        if (app->hasMainWindow())
+            return QString("/%1/mainwindow").arg(app->applicationName());
+        return QString();
+    }
+
+    void setSessionManagement(bool enable)
+    {
+        if (enable)
+           app->enableSessionManagement();
+        else
+           app->disableSessionManagement();
+    }
+
+private slots:
+    void focusChangedSlot(QWidget *, QWidget *now)
+    {
+        if (now == app->mainWindow())
+            emit mainWindowHasFocus();
+    }
+
+signals:
+    void aboutToQuit();
+    void mainWindowHasFocus();
+};
+//! [0]
+
+
+//! [1]
+interface org.kde.DBus.MainApplication
+{
+    property readwrite STRING caption
+    property read STRING organizationName
+    property read STRING organizationDomain
+
+    method quit() annotation("org.freedesktop.DBus.Method.NoReply", "true")
+    method reparseConfiguration()
+    method mainWindowObject(out STRING)
+    method disableSessionManagement(in BOOLEAN enable)
+
+    signal aboutToQuit()
+    signal mainWindowHasFocus()
+}
+//! [1]
+
+
+//! [2]
+int main(int argc, char **argv)
+{
+    // create the QApplication object
+    QApplication app(argc, argv);
+
+    // create the MainApplication adaptor:
+    new MainApplicationAdaptor(app);
+
+    // connect to D-Bus and register as an object:
+    QDBusConnection::sessionBus().registerObject("/MainApplication", app);
+
+    // add main window, etc.
+    [...]
+
+    app.exec();
+}
+//! [2]
+
+
+//! [3]
+class MainApplicationAdaptor: public QDBusAbstractAdaptor
+{
+    Q_OBJECT
+    Q_CLASSINFO("D-Bus Interface", "org.kde.DBus.MainApplication")
+//! [3]
+
+
+//! [4]
+    Q_PROPERTY(QString caption READ caption WRITE setCaption)
+    Q_PROPERTY(QString organizationName READ organizationName)
+    Q_PROPERTY(QString organizationDomain READ organizationDomain)
+//! [4]
+
+
+//! [5]
+QString caption()
+{
+    if (app->hasMainWindow())
+        return app->mainWindow()->caption();
+    return QString();
+}
+
+void setCaption(const QString &newCaption)
+{
+    if (app->hasMainWindow())
+        app->mainWindow()->setCaption(newCaption);
+}
+
+QString organizationName()
+{
+    return app->organizationName();
+}
+
+QString organizationDomain()
+{
+    return app->organizationDomain();
+}
+//! [5]
+
+
+//! [6]
+MyInterfaceAdaptor(QApplication *application)
+    : QDBusAbstractAdaptor(application), app(application)
+{
+    connect(application, SIGNAL(aboutToQuit()), SIGNAL(aboutToQuit());
+    connect(application, SIGNAL(focusChanged(QWidget*, QWidget*)),
+            SLOT(focusChangedSlot(QWidget*, QWidget*)));
+}
+//! [6]
+
+
+//! [7]
+public slots:
+    Q_NOREPLY void quit()
+    { app->quit(); }
+
+    void reparseConfiguration()
+    { app->reparseConfiguration(); }
+
+    QString mainWindowObject()
+    {
+        if (app->hasMainWindow())
+            return QString("/%1/mainwindow").arg(app->applicationName());
+        return QString();
+    }
+
+    void setSessionManagement(bool enable)
+    {
+        if (enable)
+           app->enableSessionManagement();
+        else
+           app->disableSessionManagement();
+    }
+//! [7]
+
+
+//! [8]
+signals:
+    void aboutToQuit();
+    void mainWindowHasFocus();
+//! [8]
+
+
+//! [9]
+private slots:
+    void focusChangedSlot(QWidget *, QWidget *now)
+    {
+        if (now == app->mainWindow())
+            emit mainWindowHasFocus();
+    }
+//! [9]
+
+
+//! [10]
+struct RequestData
+{
+    QString request;
+    QString processedData;
+    QDBusMessage reply;
+};
+
+QString processRequest(const QString &request, const QDBusMessage &message)
+{
+    RequestData *data = new RequestData;
+    data->request = request;
+    message.setDelayedReply(true);
+    data->reply = message.createReply();
+    QDBusConnection::sessionBus().send(data->reply);
+
+    appendRequest(data);
+    return QString();
+}
+//! [10]
+
+
+//! [11]
+void sendReply(RequestData *data)
+{
+    // data->processedData has been initialized with the request's reply
+    QDBusMessage &reply = &data->reply;
+
+    // send the reply over D-Bus:
+    reply << data->processedData;
+    QDBusConnection::sessionBus().send(reply);
+
+    // dispose of the transaction data
+    delete data;
+}
+//! [11]
+
+
+//! [12]
+Q_NOREPLY void myMethod();
+//! [12]