bmp文件夹内的是在多文档客户区中增加位图底图演示程序，SDKMDI在多文档客户区中增加位图底图。对于bmp目录类中的位图都是兼容于当前显示器颜色格式的DDB位图，如果读入的位图格式与当前显示器的颜色格式不同，则读入函数会先将其转换，为兼容于当前显示器颜色格式的位图之后才放入类中，对于所有BOOL型返回的函数，TRUE表示成功，FALSE表示失败。示例截图为SDKMDI目录中的测试程序。-bmp folder is to increase the base map demo bitmap in the client area of the multi-document, SDKMDI increase in multi-document bitmap underlay the client area. For bmp bitmap catalog category are compatible with the current DDB bitmap display color format, if read in bitmap format with different current display color format, the read function will convert it for compatibility with current after bitmap display color formats them into the class, for all functions return a BOOL, TRUE for success, FALSE indicates failure. Example screenshots for SDKMDI directory testing procedures.