/****************************************************************************** $Id: qt/main.cpp   3.3.4   edited May 27 2003 $**** Copyright (C) 1992-2000 Trolltech AS.  All rights reserved.**** This file is part of an example program for Qt.  This example** program may be used, distributed and modified without limitation.*******************************************************************************///// Qt OpenGL example: Box//// A small example showing how a GLWidget can be used just as any Qt widget// // File: main.cpp//// The main() function // #include "globjwin.h"#include <qapplication.h>#include <qgl.h>/*  The main program is here. */int main( int argc, char **argv ){    QApplication::setColorSpec( QApplication::CustomColor );    QApplication a(argc,argv);    if ( !QGLFormat::hasOpenGL() ) {	qWarning( "This system has no OpenGL support. Exiting." );	return -1;    }    GLObjectWindow w;    w.resize( 400, 350 );    a.setMainWidget( &w );    w.show();    return a.exec();}