Qt Reference Documentation

# main.cpp Example File

demos/mobile/quickhit/main.cpp

     /****************************************************************************
     **
     ** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
     ** All rights reserved.
     ** Contact: Nokia Corporation (qt-info@nokia.com)
     **
     ** This file is part of the QtDeclarative module 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.
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     ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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     ****************************************************************************/

     #include <QtGui/QApplication>
     #include <QDesktopWidget>
     #include "mainwindow.h"

     // Lock S60 orientation
     #ifdef Q_OS_SYMBIAN
     #include <eikenv.h>
     #include <eikappui.h>
     #include <aknenv.h>
     #include <aknappui.h>
     #endif

     #ifndef QT_NO_OPENGL
         #include <QGLWidget>
     #endif

     int main(int argc, char *argv[])
     {
         QApplication a(argc, argv);

         // Lock S60 orientation
     #ifdef Q_OS_SYMBIAN
         CAknAppUi* appUi = dynamic_cast<CAknAppUi*> (CEikonEnv::Static()->AppUi());
         TRAPD(error,
         if (appUi) {
             appUi->SetOrientationL(CAknAppUi::EAppUiOrientationPortrait);
         }
         );
     #endif

         MainWindow w;

     #ifndef QT_NO_OPENGL
         // Use QGLWidget to get the opengl support if available
         QGLFormat format = QGLFormat::defaultFormat();
         format.setSampleBuffers(false);

         QGLWidget *glWidget = new QGLWidget(format);
         glWidget->setAutoFillBackground(false);
         w.setViewport(glWidget);     // ownership of glWidget is taken
     #endif

         QObject *rootObject = dynamic_cast<QObject*>(w.rootObject());

         // For Qt.exit() from QML
         QObject::connect((QObject*)w.engine(), SIGNAL(quit()), &a, SLOT(quit()));
         // Level activation signal from QML
         QObject::connect(rootObject, SIGNAL(levelActivated(int)), &w, SLOT(levelActivated(int)));

     #if defined (Q_OS_SYMBIAN) || defined (Q_WS_MAEMO_5)
         w.setGeometry(QApplication::desktop()->screenGeometry());
         w.showFullScreen();
     #else
         w.setGeometry(100,100,360,640);
         w.setFixedSize(360,640);
         w.show();
     #endif

         return a.exec();
     }