VC++.NET－OpenGL视图中绘制三维物体，已创建了这个 OpenGl 应用程序，使用 "TODO:" 注释指示应添加或自定义的源代码部分。-VC++. NET-OpenGL rendering three-dimensional objects in view, has created the OpenGl applications, the use of " TODO:" Notes of the instructions should be added or par