MFC消息映射机制的剖析，讲述如何运用ClassWizard，，理解发送给窗口的消息是如何被MFC框架通过窗口句柄映射表和消息映射表来用窗口类的函数进行响应的。掌握设备描述表及其封装类CDC的使用，CDC是如何与具体的设备发生关联的，融合具体的画图程序进行分析。如何设置封闭图形的填充刷子（位图画刷与透明画刷的使用）。

-MFC message mapping mechanism analysis, about how to use the ClassWizard,, understand the message is sent to the window how the MFC framework of the mapping table by the window handle and message map to use the window class, the response function. Master device context and use wrapper class CDC, CDC is how to associate with the occurrence of specific equipment, the integration of specific drawing program for analysis. How to set the closed graph of the fill brush (the bitmap brush and transparent use of the brush.)