運行時類信息機制

// MFCDynimic.cpp : Defines the entry point for the console application.
//
/*
運行時類信息機制：在程序運行過程中，可以判斷類對象的相關類的信息以及繼承派生類。
*/

#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;
}