(Official C/C development engineer QQ group (1090119), please enter your ID for verification. The whole Chinese explains the MFC classes in detail. Each class, function, variable, and macro has a specific explanation. Similar to the MSDN layout structure, the "class hierarchy diagram" in the reference is to facilitate the search for the base class of a certain class. The MFC reference does not generally describe functions or operators through inheritance. For information on these functions, refer to the base class information for that class in the class hierarchy diagram. The documentation for each class includes: the synthesis of the class, the variety of class members, and the basic use of the member functions, overloaded operators, or data members.
Detailed MFC class library.chm)