基于VC++源码演示怎么注册多文档模板，而且防止MFC主动发生_New File Type_对话框，程序源码由VC6.0转码生成，VC++编程学习源码，很好的参考资料。-VC++ source code demonstrates how to register multiple document template based on MFC, and prevent the occurrence of _New active File Type_ dialog, the program sourc