MFC多线程编程

http://blog.csdn.net/yusheng9966/archive/2008/02/03/2079839.aspx

具体来说是：

在MFC中调用attach的时候

有个宏叫ASSERT_VALID（），这个方法不允许访问非本线程创建的继承于。

在CWnd函数里面有一个Valid（）的静态方法，检测当前线程的MFC对象指针，是否在当前线程的Map中；

 

下面就是这个模块中线程状态结构体：

// AFX_MODULE_THREAD_STATE (local to thread *and* module) class AFX_MODULE_THREAD_STATE : public CNoTrackObject { public: AFX_MODULE_THREAD_STATE(); virtual ~AFX_MODULE_THREAD_STATE(); // current CWinThread pointer CWinThread* m_pCurrentWinThread; // list of CFrameWnd objects for thread CTypedSimpleList<CFrameWnd*> m_frameList; // temporary/permanent map state DWORD m_nTempMapLock; // if not 0, temp maps locked CHandleMap* m_pmapHWND; CHandleMap* m_pmapHMENU; CHandleMap* m_pmapHDC; CHandleMap* m_pmapHGDIOBJ; CHandleMap* m_pmapHIMAGELIST; // thread-local MFC new handler (separate from C-runtime) _PNH m_pfnNewHandler; #ifndef _AFX_NO_SOCKET_SUPPORT // WinSock specific thread state HWND m_hSocketWindow; #ifdef _AFXDLL CEmbeddedButActsLikePtr<CMapPtrToPtr> m_pmapSocketHandle; CEmbeddedButActsLikePtr<CMapPtrToPtr> m_pmapDeadSockets; CEmbeddedButActsLikePtr<CPtrList> m_plistSocketNotifications; #else CMapPtrToPtr* m_pmapSocketHandle; CMapPtrToPtr* m_pmapDeadSockets; CPtrList* m_plistSocketNotifications; #endif #endif // common controls thread state CToolTipCtrl* m_pToolTip; CWnd* m_pLastHit; // last window to own tooltip INT_PTR m_nLastHit; // last hittest code TOOLINFO* m_pLastInfo; // last TOOLINFO structure INT_PTR m_nLastStatus; // last flyby status message CControlBar* m_pLastStatus; // last flyby status control bar };