Runtime class information mechanism

// MFCDynimic. cpp: Defines the entry point for the console application.
//
/*
Runtime class information mechanism: when the program is running, you can determine information about the classes of the class object and inherit the derived classes.
*/

# Include "stdafx. h"
# Include "MFCDynimic. h"

Class CAnimal: public CObject
{
DECLARE_DYNAMIC (CAnimal );
};

IMPLEMENT_DYNAMIC (CAnimal, CObject );

Class CDog: public CAnimal
{
DECLARE_DYNAMIC (CDog );
};

IMPLEMENT_DYNAMIC (CDog, CAnimal );


Int _ tmain (int argc, TCHAR * argv [], TCHAR * envp [])
{
CDog yellowdog;
If (yellowdog. IsKindOf (RUNTIME_CLASS (CObject )))
{
Printf ("yellowdog is CObject! N ");
}
Else
{
Printf ("yellowdog isn' t CObject! N ");
}

Return 0;
}

Runtime class information mechanism