MFC訊息對映巨集的展開

BEGIN_MESSAGE_MAP (CMainWindow, CFrameWnd)
ON_WM_PAINT () //WM_PAINT 訊息通過MFC的訊息對映機制轉換為對CMainWindow：：OnPaint函式的呼叫
END_MESSAGE_MAP ()

展開後

__pragma(warning(push))
__pragma(warning(disable : 4867))

const struct AFX_MSGMAP* CMainWindow::GetMessageMap() const
{	
	return GetThisMessageMap
 
();
}

const struct AFX_MSGMAP* __stdcall CMainWindow::GetThisMessageMap()
{	
	typedef CMainWindow ThisClass;
	typedef CFrameWnd TheBaseClass;
	__pragma(warning(push))
	__pragma(warning(disable: 4640))
	static const struct AFX_MSGMAP_ENTRY _messageEntries[] =
	{
		WM_PAINT, 0, 0, 0, AfxSig_vv,
  		{(AFX_PMSG)
 
(AFX_PMSGW)(static_cast<void (AFX_MSG_CALL CWnd::*)(void）> (&ThisClass::OnPaint))},
  		{0, 0, 0, 0, AfxSig_end, (AFX_PMSG)0 }
	};
	__pragma(warning(pop))
	static const struct AFX_MSGMAP messageMap = 
	{
		&TheBaseClass::GetThisMessageMap, &_messageRntries[0]
	};
	return &messageMap;
 

}
__pragma(warning(pop))