机械时钟转动的程序

机械时钟转动的程序

 

   关于时间的几个api

 

 

case   WM_TIMER :

    GetLocalTime (&st) ;
    fChange =st.wHour!=stPrevious.wHour||st.wMinute!=stPrevious.wMinute;


    InvalidateRect(hWnd,NULL,true);
    UpdateWindow(hWnd);

    char str1[10];
    char str2[10];
    char str3[10];
    memset(str1,'0',10);
    memset(str2,'0',10);
    memset(str3,'0',10);


    hdc = GetDC (hWnd);

    wsprintf(str1," 小时：%d",st.wHour);
    wsprintf(str2," 分   ：%d",st.wMinute);
    wsprintf(str3," 秒   ：%d",st.wSecond);
    TextOut(hdc,10,10,str1,strlen(str1));
    TextOut(hdc,10,30,str2,strlen(str2));
    TextOut(hdc,10,50,str3,strlen(str3));


    SetIsotropic(hdc, cxClient, cyClient);
    SelectObject (hdc, GetStockObject (WHITE_PEN)) ;
    DrawHands (hdc, &stPrevious, fChange);
    SelectObject (hdc, GetStockObject (BLACK_PEN)) ;
    DrawHands (hdc, &st, TRUE) ;
    ReleaseDC (hWnd, hdc) ;

    if ( st.wMinute == 0 && st.wSecond == 0)
    {
        MessageBox(hWnd,str1,"定时",0);
    }

    stPrevious = st ;
       return 0 ;

 

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