void cVideoSystem::initVideo() const
{
	//set opengl vars
	SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 5);		//Use at least 5 bits of Red
	SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 5);	//Use at least 5 bits of Green
	SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 5);		//Use at least 5 bits of Blue
	SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);	//Enable double buffering
	//notice no depth buffer is set

	CSetting &setting = CSetting::getSingleton();

	//set up projection
	glMatrixMode(GL_PROJECTION);
	glLoadIdentity();
	glViewport(0, 0, setting.video.res_x, setting.video.res_y);
	glOrtho(-4.0, 4.0, 3.0, -3.0, -10.0, 10.0); 
	glClearColor(.5f, .5f, .5f, 0.0f);
	glShadeModel(GL_SMOOTH);
	glDisable(GL_DEPTH);	//2d, we dont want depth yet
	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
	glMatrixMode(GL_MODELVIEW);
	glLoadIdentity();
}

void cVideoSystem::createWindow()
{
	//init SDL video
    if (SDL_Init(SDL_INIT_VIDEO) == -1) 
		throw cErrorCode(EC_SDL_INITVIDEO_FAILURE, EL_CRASH);

	CSetting &setting = CSetting::getSingleton();

	m_frameBufferSurface = SDL_SetVideoMode( setting.video.res_x, setting.video.res_y, setting.video.bpp, SDL_OPENGL | SDL_HWSURFACE);
	if(!m_frameBufferSurface)
		throw cErrorCode(EC_SDL_SETVIDEOMODE_FAILURE, EL_CRASH);

	//set window title
    SDL_WM_SetCaption("RAND prototype application", NULL);
}

///////////////////////////////////////////////////

int main(int argc, char *argv[])
{
...
	cVideoSystem *video = new cVideoSystem();
	video->createWindow();
	video->initVideo();
...
	CEGUI::System::getSingleton().renderGUI();
}