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DECLARE_MESSAGE_MAP 

Declares that the class defines a message map. Each CCmdTarget-derived class in your program must provide a message map to handle messages.


DECLARE_MESSAGE_MAP( )

Use the DECLARE_MESSAGE_MAP macro at the end of your class declaration. Then, in the .cpp file that defines the member functions for the class, use the BEGIN_MESSAGE_MAP macro, macro entries for each of your message-handler functions, and the END_MESSAGE_MAP macro.

NoteNote

If you declare any member after DECLARE_MESSAGE_MAP, you must specify a new access type (public, private, or protected) for them.

For more information on message maps and the DECLARE_MESSAGE_MAP macro, see Message Handling and Mapping Topics.

// Example for DECLARE_MESSAGE_MAP
class CMyWnd : public CFrameWnd
{
    // Member declarations
    
    DECLARE_MESSAGE_MAP( )
};

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