AFX_MSG

Remarks

ClassWizard and AppWizard insert specially formatted comment delimiters in your source code files to mark the places in your files that ClassWizard can write to. AFX_MSG is used to mark the beginning and end of ClassWizard entries in your header file (.H) related to message maps:

//{{AFX_MSG(classname)
...
//}}AFX_MSG

For more information, see AFX_MSG_MAP.