单视窗下的OPENGL，很多书籍都是在控制台下的OPENGL编程，而在单视窗下的编程可以再添加更多的功能控件，可以为大型OPENGL搭建平台-single window of OpenGL, many books are in the console under the OpenGL programming, in a single programming under Windows can add more features controls for large structures plat