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tqt3/examples/opengl/overlay/main.cpp

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/****************************************************************************
**
** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
**
** This file is part of an example program for TQt. This example
** program may be used, distributed and modified without limitation.
**
*****************************************************************************/
//
// TQt OpenGL example: Box
//
// A small example showing how a GLWidget can be used just as any TQt widget
//
// File: main.cpp
//
// The main() function
//
#include "globjwin.h"
#include <ntqapplication.h>
#include <tqgl.h>
#include <ntqmessagebox.h>
/*
The main program is here.
*/
int main( int argc, char **argv )
{
TQApplication::setColorSpec( TQApplication::CustomColor );
TQApplication a(argc,argv);
if ( !TQGLFormat::hasOpenGL() ) {
tqWarning( "This system has no OpenGL support. Exiting." );
return -1;
}
// Check for existence of overlays
if ( !TQGLFormat::hasOpenGLOverlays() ) {
TQMessageBox::critical( 0, tqApp->argv()[0],
"This system does not support OpenGL overlays",
"Exit" );
return 1;
}
GLObjectWindow w;
w.resize( 400, 350 );
a.setMainWidget( &w );
w.show();
return a.exec();
}