用VC6opengl画三维图,可拖拉放大，缩小-Draw three-dimensional map with VC6opengl

在VC++6.0中使用OpenGL绘制三维图形的实例源代码，源代码比较复杂，它可以绘制3D立体效果图，长方体、正方体等，其功能类似一款简单的3D绘图工具，还有其它功能，你可以下载编译一下探个究竟！-VC++6.0 in the use of OpenGL graphics rendering three-dimensional examples of source code, source code more complicated, it can draw three-dimensional