一个在opengl下显示灰度bmp位图文件的程序，用VC++ 编写而成。很简单，适合初学者使用。-an opengl shown in gray bmp bitmap documentation procedures, prepared by VC. Very simple, suitable for beginners-Opengl shown in grayscale bitmap bmp files, use VC++ Prepared. Very simple, suitable for beginners to use.-an opengl shown in gray bmp bitmap documentation procedures, prepared by VC. Very simple, suitable for beginners