main.cpp Example File

 /****************************************************************************
 **
 ** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
 ** This file is part of the demonstration applications 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 "cameraexample.h"

 #include <QtGui>
 #include <QApplication>
 #include <QDebug>

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

 #ifdef Q_OS_SYMBIAN
 #include <QSymbianEvent>
 #include <w32std.h>

 #endif

 static const int KGoomMemoryLowEvent = 0x10282DBF;
 static const int KGoomMemoryGoodEvent = 0x20026790;

 class MyApplication : public QApplication
 {
 public:
   MyApplication( int argc, char** argv ) : QApplication( argc, argv ) {}

 #ifdef Q_OS_SYMBIAN
 protected:
   bool symbianEventFilter( const QSymbianEvent* symbianEvent )
   {
     const TWsEvent *event = symbianEvent->windowServerEvent();
     if ( !event ) {
       return false;
     }
     switch ( event->Type() ) {
       // GOOM handling enabled
       // http://wiki.forum.nokia.com/index.php/Graphics_memory_handling
       case EEventUser: {
         TApaSystemEvent* eventData = reinterpret_cast<TApaSystemEvent*>(event->EventData());
         if ((*eventData) == EApaSystemEventShutdown) {
             eventData++;
             if ((*eventData) == KGoomMemoryLowEvent) {
              return true;
             }
         }
         break;
       }
       default:
         break;
     };

     // Always return false so we don't stop
     // the event from being processed
     return false;
   }
 #endif
 };

 int main(int argc, char *argv[])
 {
     // NOTE: set this value before creating MyApplication instance
     // http://doc.trolltech.com/qapplication.html#setGraphicsSystem
     QApplication::setGraphicsSystem("raster"); // NOTE: Seems that raster have to be enabled with Nokia N8

     MyApplication a(argc, argv);

     // Lock Symbian orientation
 #ifdef Q_OS_SYMBIAN
     CAknAppUi* appUi = dynamic_cast<CAknAppUi*> (CEikonEnv::Static()->AppUi());
     TRAP_IGNORE(
     if (appUi) {
         appUi->SetOrientationL(CAknAppUi::EAppUiOrientationLandscape);
     }
     );
 #endif

     CameraExample w;
     w.showFullScreen();

     return a.exec();
 }