本源码可帮助VC++新手们快速了解VC++窗口及句柄的原理，由孙鑫老师一本书中的实例改写。

　　Windows程序运行原理及程序编写流程，窗口产生过程，句柄原理，消息队列，回调函数，窗口关闭与应用程序退出的工作关系，使用VC++的若干小技巧，stdcall与cdecl调用规范的比较，初学者常犯错误及注意事项。-This source can help VC++ novice to quickly understand the VC++ window and the principle of the handle, a teacher in a book by the Sun Xin instance rewritten. Windows program to run programming principles and processes, the window generating process, handle theory, message queue, the callback function, the window closed with the application quit working relationship, using VC++ and some small tips, stdcall and cdecl calling conventions of comparison, the early Scholars often make mistakes and precautions.