如果窗口想获取相关消息，需要注册Session的Notification，需要Wtsapi32.dll中的两个函数：WTSRegisterSessionNotification和WTSUnRegisterSessionNotification，分别在窗口创建和销毁的时候调用。

typedef BOOL (WINAPI *WTSRegisterSessionNotification)(HWND, DWORD); typedef BOOL (WINAPI *WTSUnRegisterSessionNotification)(HWND); #define WTSAPI_DLL _T("Wtsapi32.dll") #define MY_WTS_SESSION_FUNCTION(fnType, fnName, arg) / BOOL bRet = FALSE; / HMODULE hLibrary = ::LoadLibrary(WTSAPI_DLL); / if (hLibrary) / { / fnType fn / = (fnType)::GetProcAddress(hLibrary, fnName); / if (fn) / { / bRet = fn##arg; / } / ::FreeLibrary(hLibrary); / } / return bRet; BOOL MyWTSRegisterSessionNotification(HWND hWnd, DWORD dwFlag) { MY_WTS_SESSION_FUNCTION(WTSRegisterSessionNotification, "WTSRegisterSessionNotificatio