CDateTimeUI 的bug修复。修改CDateTimeWnd的HandleMessage方法

if(WM_NOTIFY==uMsg)
{
    ::SetFocus(m_hWnd);
}
if( uMsg == WM_KILLFOCUS /**/)
{
      ::OutputDebugString("WM_KILLFOCUS\n");
      if( uMsg == WM_KILLFOCUS /**/)
       {
            //这里肯可能需要优化，因为FindWindow找出来的窗口不一定是本进程的窗口
            HWND hh=::FindWindow(_T("SysMonthCal32"),NULL);
            if(::IsWindow(hh))
            {
                 MCHITTESTINFO pp;
                 memset(&pp,0,sizeof(pp));
                 //pp.uHit=MCHT_CALENDAR;
                 GetCursorPos(&pp.pt);
                 ::ScreenToClient(hh,&pp.pt);
                 pp.cbSize=sizeof(pp);
                 MonthCal_HitTest(hh,&pp);
                 //下一个月
                 if(pp.uHit==MCHT_TITLEBTNNEXT)
                 {
                     return 1;
                 }
                 //上一个月
                 if(pp.uHit==MCHT_TITLEBTNPREV)
                 {
                     return 1;
                 }
            }else{
                POINT pt;
                ::GetCursorPos(&pt); 
                RECT rt;
                ::GetWindowRect(m_hWnd,&rt);
                if(
                    !(pt.x>=rt.left&&pt.x<=rt.right)||
                    !(pt.x>=rt.top&&pt.x<=rt.bottom)
                 )
                {
                    ::OutputDebugString("CLose\n");
                    lRes= OnKillFocus(uMsg,wParam, lParam,bHandled);
                }
             }
       }
}

完整代码：

LRESULT CDateTimeWnd::HandleMessage(UINT uMsg, WPARAM wParam, LPARAM lParam)
    {
        LRESULT lRes = 0;
        BOOL bHandled = TRUE;
        /**xpBug***/
        DWORD ProcessId;
        if(WM_SETFOCUS==uMsg)
        {
            ::OutputDebugString("WM_SETFOCUS\n");
        }
        if(WM_NOTIFY==uMsg)
        {
            ::SetFocus(m_hWnd);
        }
        if( uMsg == WM_KILLFOCUS /**/)
        {
            ::OutputDebugString("WM_KILLFOCUS\n");
            if( uMsg == WM_KILLFOCUS /**/)
            {
                //这里肯可能需要优化，因为FindWindow找出来的窗口不一定是本进程的窗口
                HWND hh=::FindWindow(_T("SysMonthCal32"),NULL);
                //Isdel=true;
                if(::IsWindow(hh))
                {
                    MCHITTESTINFO pp;
                    memset(&pp,0,sizeof(pp));
                    GetCursorPos(&pp.pt);
                    ::ScreenToClient(hh,&pp.pt);
                    pp.cbSize=sizeof(pp);
                    MonthCal_HitTest(hh,&pp);
                    //下一个月
                    if(pp.uHit==MCHT_TITLEBTNNEXT)
                    {
                        return 1;
                    }
                    //上一个月
                    if(pp.uHit==MCHT_TITLEBTNPREV)
                    {
                        return 1;
                    }
                }else
                {
                    POINT pt;
                    ::GetCursorPos(&pt); 
                    RECT rt;
                    ::GetWindowRect(m_hWnd,&rt);
                    if(
                        !(pt.x>=rt.left&&pt.x<=rt.right)||
                        !(pt.x>=rt.top&&pt.x<=rt.bottom)
                        )
                    {
                        ::OutputDebugString("CLose\n");
                        lRes= OnKillFocus(uMsg,wParam, lParam,bHandled);
                    }
                            
                }
             }
        }
        else/**/ if (uMsg == WM_KEYUP && (wParam == VK_DELETE || wParam == VK_BACK))
        {
            LRESULT lRes = ::DefWindowProc(m_hWnd, uMsg, wParam, lParam);
            m_pOwner->m_nDTUpdateFlag = DT_DELETE;
            m_pOwner->UpdateText();
            PostMessage(WM_CLOSE);
            return lRes;
        }
        else if (uMsg == WM_KEYUP && wParam == VK_ESCAPE)
        {
            LRESULT lRes = ::DefWindowProc(m_hWnd, uMsg, wParam, lParam);
            m_pOwner->m_nDTUpdateFlag = DT_KEEP;
            PostMessage(WM_CLOSE);
            return lRes;
        }
        else 
            bHandled = FALSE;

        if(!bHandled ) 
        {
            return CWindowWnd::HandleMessage(uMsg, wParam, lParam);
        }
        return lRes;
    }