example11-1.htm

Visual C++面向对象程序设计教程（配套习题资源）

    <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">static 
    char szAppName[] = &quot;<font LANG="ZH-CN">示例</font>&quot; 
    ;&nbsp;&nbsp;&nbsp; //<font LANG="ZH-CN">窗口类名</font></font></p>
    <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">HWND 
    hwnd 
    ;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
    //<font LANG="ZH-CN">窗口句柄</font></font></p>
    <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">MSG 
    msg 
    ;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
    //Windows<font LANG="ZH-CN">消息</font></font></p>
    <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">WNDCLASSEX 
    wndclass 
    ;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
    //<font LANG="ZH-CN">窗口类，可以是</font>WNDCLASS</font></p>
    <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">wndclass.cbSize 
    = sizeof (wndclass) ; //<font LANG="ZH-CN">窗口类数据大小</font></font></p>
    <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">wndclass.style 
    = CS_HREDRAW | CS_VREDRAW ; //<font LANG="ZH-CN">窗口类样式</font></font></p>
    <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">wndclass.lpfnWndProc 
    = WndProc ;&nbsp;&nbsp;&nbsp;&nbsp; //<font LANG="ZH-CN">窗口处理函数为</font>WndProc</font></p>
    <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">wndclass.cbClsExtra 
    = 0 ;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; //<font LANG="ZH-CN">窗口类无扩展</font></font></p>
    <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">wndclass.cbWndExtra 
    = 0 ;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; //<font LANG="ZH-CN">窗口实例无扩展</font></font></p>
    <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">wndclass.hInstance 
    = hInstance ;&nbsp;&nbsp;&nbsp;&nbsp; //<font LANG="ZH-CN">当前实例句柄</font></font></p>
    <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2" color="#009933">wndclass.hIcon 
    = LoadIcon (hInstance, MAKEINTRESOURCE(MYICON2)) ;</font></p>
    <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2" color="#009933">//<font LANG="ZH-CN">窗口左上角的图标为</font>MYICON2</font></p>
    <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0">　</p>
    <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">wndclass.hCursor 
    = LoadCursor (NULL, IDC_ARROW) 
    ;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
    //<font LANG="ZH-CN">窗口采用箭头光标</font></font></p>
    <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">wndclass.hbrBackground 
    = (HBRUSH) GetStockObject (WHITE_BRUSH) ; //<font LANG="ZH-CN">窗口背景为白色</font></font></p>
    <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">wndclass.lpszMenuName 
    = MAKEINTRESOURCE(IDR_MENU1) 
    ;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; //<font LANG="ZH-CN">窗口无菜单</font></font></p>
    <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">wndclass.lpszClassName 
    = szAppName 
    ;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
    //<font LANG="ZH-CN">窗口类名为“示例”</font></font></p>
    <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0">　</p>
    <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2" color="#009933">//wndclass.hIconSm 
    = LoadIcon (NULL, MAKEINTRESOURCE(IDI_ICON1)) ;</font></p>
    <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2" color="#009933">wndclass.hIconSm 
    = LoadIcon (NULL, &quot;icon1&quot;) 
    ;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; //<font lang="ZH-CN"><b><u>程序</u></b></font><font LANG="ZH-CN">最小化的图标为</font>icon1.ico</font></p>
    <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0">　</p>
    <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">/* 
    <font LANG="ZH-CN">以下是对窗口类的注册</font> */</font></p>
    <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">if(! 
    RegisterClassEx (&amp;wndclass))&nbsp;&nbsp; //<font LANG="ZH-CN">如果注册失败则发出警告</font></font></p>
    <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">{</font></p>
    <blockquote>
      <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">MessageBeep(0);</font></p>
      <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">return 
      FALSE;</font></p>
    </blockquote>
    <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">}</font></p>
    <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">hwnd 
    = CreateWindow (szAppName,&nbsp;&nbsp; //<font LANG="ZH-CN">窗口类名</font></font></p>
    <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">&quot;<font LANG="ZH-CN">示例</font>11_1&quot;,&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
    //<font LANG="ZH-CN">窗口标题名</font></font></p>
    <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">WS_OVERLAPPEDWINDOW, 
    //<font LANG="ZH-CN">窗口的风格</font></font></p>
    <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">CW_USEDEFAULT,</font></p>
    <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">CW_USEDEFAULT,&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
    //<font LANG="ZH-CN">窗口左上角坐标为默认值</font></font></p>
    <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">CW_USEDEFAULT,</font></p>
    <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">CW_USEDEFAULT,&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
    //<font LANG="ZH-CN">窗口的高和宽为默认值</font></font></p>
    <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">NULL, 
    //<font LANG="ZH-CN">此窗口无父窗口</font></font></p>
    <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">NULL, 
    //<font LANG="ZH-CN">此窗口无主菜单</font></font></p>
    <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">hInstance, 
    //<font LANG="ZH-CN">创建此窗口的应用程序的当前句柄</font></font></p>
    <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">NULL) 
    ;&nbsp;&nbsp; //<font LANG="ZH-CN">此值不使用</font></font></p>
    <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">ShowWindow 
    (hwnd, iCmdShow) ; //<font LANG="ZH-CN">显示窗口</font></font></p>
    <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">UpdateWindow 
    (hwnd) ;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; //<font LANG="ZH-CN">绘制用户区</font></font></p>
    <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">while 
    (GetMessage (&amp;msg, NULL, 0, 0)) //<font LANG="ZH-CN">消息循环</font></font></p>
    <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">{</font></p>
    <blockquote>
      <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">TranslateMessage 
      (&amp;msg) ; //<font LANG="ZH-CN">翻译消息</font></font></p>
      <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">DispatchMessage 
      (&amp;msg) ;&nbsp; //<font LANG="ZH-CN">将消息传递给处理函数</font></font></p>
    </blockquote>
    <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">}</font></p>
    <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">return 
    msg.wParam ;</font></p>
    <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">}</font></p>
    <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0">　</p>
    <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0">　</p>
    <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">//<font LANG="ZH-CN">窗口处理函数</font></font></p>
    <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">LRESULT 
    CALLBACK WndProc (HWND hwnd //<font LANG="ZH-CN">窗口句柄</font></font></p>
    <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">UINT 
    iMsg,&nbsp;&nbsp;&nbsp;&nbsp; //<font LANG="ZH-CN">消息</font></font></p>
    <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">WPARAM 
    wParam, //<font LANG="ZH-CN">参数</font></font></p>
    <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">LPARAM 
    lParam) //<font LANG="ZH-CN">参数</font></font></p>
    <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">{</font></p>
    <blockquote>
      <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">switch 
      (iMsg)</font></p>
      <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">{</font></p>
      <blockquote>
        <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">case 
        WM_DESTROY :</font></p>
        <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">PostQuitMessage 
        (0) ; //<font LANG="ZH-CN">调用函数</font>PostQuitessage<font LANG="ZH-CN">退出程序</font></font></p>
        <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">return 
        0 ;</font></p>
      </blockquote>
      <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">}</font></p>
      <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">return 
      DefWindowProc (hwnd, iMsg, wParam, lParam) ;</font></p>
    </blockquote>
    <p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">}</font></p>
  </blockquote>
</blockquote>

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