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# pong.cpp Example File
dbus/pingpong/pong.cpp

     /****************************************************************************
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     ** Contact: Nokia Corporation (qt-info@nokia.com)
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     #include <stdio.h>
     #include <stdlib.h>

     #include <QtCore/QCoreApplication>
     #include <QtCore/QTimer>
     #include <QtDBus/QtDBus>

     #include "ping-common.h"
     #include "pong.h"

     QString Pong::ping(const QString &arg)
     {
         QMetaObject::invokeMethod(QCoreApplication::instance(), "quit");
         return QString("ping(\"%1\") got called").arg(arg);
     }

     int main(int argc, char **argv)
     {
         QCoreApplication app(argc, argv);

         if (!QDBusConnection::sessionBus().isConnected()) {
             fprintf(stderr, "Cannot connect to the D-Bus session bus.\n"
                     "To start it, run:\n"
                     "\teval `dbus-launch --auto-syntax`\n");
             return 1;
         }

         if (!QDBusConnection::sessionBus().registerService(SERVICE_NAME)) {
             fprintf(stderr, "%s\n",
                     qPrintable(QDBusConnection::sessionBus().lastError().message()));
             exit(1);
         }

         Pong pong;
         QDBusConnection::sessionBus().registerObject("/", &pong, QDBusConnection::ExportAllSlots);

         app.exec();
         return 0;
     }