学习期间用VC++仿照别人写的开源CAD软件，源代码注释很详细，对VC++提高很有帮助-During the study modeled using VC++ written by someone else' s open source CAD software, source code comments in great detail, very helpful for VC++ to improve

周立功公司的GUI源码,有兴趣的可以下,移植特性非常好-ZLG' s GUI source code, can be interested, the transplant is very good features

这里面有利用objectarx二次开发的许多程序的源代码，可以在cad中加载实现不同的功能-And there are a lot of secondary development use objectarx program' s source code, you can load the cad different functions