1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
|
/****************************************************************************
** $Id: qt/examples/overlay/main.cpp 2.3.1 edited 2001-01-26 $
**
** 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>
#include <qmessagebox.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;
}
// Check for existence of overlays
if ( !QGLFormat::hasOpenGLOverlays() ) {
QMessageBox::critical( 0, qApp->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();
}
|
