void GLCtrl::DoGLPaint()
{
	glClearDepth(1);
	glClearColor(1, 0, 0, 1);
	glClear(GL_COLOR_B
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	UFFER_BIT|GL_DEPTH_BUFFER_BIT|GL_STENCIL_BUFFER_BIT);
	glEnable(GL_MULTISAMPLE);
	Size sz = GetSize();
	current_viewport = sz;
	SetCurrentViewport();
	GLPaint();
}