chap12_4.htm

MFC开发基础教程

        <td WIDTH="26%"><font SIZE="3"><p ALIGN="JUSTIFY">缺省</font></td>
        <td WIDTH="44%"><font SIZE="3"><p ALIGN="JUSTIFY">标题为</font><font FACE="Times New Roman" SIZE="3">TTY options</font></td>
      </tr>
      <tr>
        <td WIDTH="29%"><font FACE="Times New Roman" SIZE="3"><p ALIGN="JUSTIFY">New line</font><font SIZE="3">检查框</font></td>
        <td WIDTH="26%"><font FACE="Times New Roman" SIZE="3"><p ALIGN="JUSTIFY">IDC_NEWLINE</font></td>
        <td WIDTH="44%"><font SIZE="3"><p ALIGN="JUSTIFY">标题为</font><font FACE="Times New Roman" SIZE="3">New line</font></td>
      </tr>
      <tr>
        <td WIDTH="29%"><font FACE="Times New Roman" SIZE="3"><p ALIGN="JUSTIFY">Local echo</font><font SIZE="3">检查框</font></td>
        <td WIDTH="26%"><font FACE="Times New Roman" SIZE="3"><p ALIGN="JUSTIFY">IDC_ECHO</font></td>
        <td WIDTH="44%"><font SIZE="3"><p ALIGN="JUSTIFY">标题为</font><font FACE="Times New Roman" SIZE="3">Local echo</font></td>
      </tr>
    </table>
    <p><font SIZE="3">　</font><font FACE="Times New Roman" SIZE="3"></p>
    <p ALIGN="JUSTIFY"></font><font SIZE="3">　</font><font FACE="Times New Roman" SIZE="3"></p>
    <blockquote>
      <blockquote>
        </font><font SIZE="3"><p ALIGN="JUSTIFY">打开</font><font FACE="Times New Roman" SIZE="3">ClassWizard</font><font SIZE="3">，为</font><font FACE="Times New Roman" SIZE="3">IDD_COMSETTINGS</font><font SIZE="3">模板创建一个名为</font><font FACE="Times New Roman" SIZE="3">CSetupDlg</font><font SIZE="3">的对话框类。为该类加入</font><font FACE="Times New Roman" SIZE="3">OnInitDialog</font><font SIZE="3">成员函数，并按表</font><font FACE="Times New Roman" SIZE="3">12.7</font><font SIZE="3">加入数据成员。</p>
        </font>
      </blockquote>
    </blockquote>
    <p><b><font SIZE="3">　</p>
    <p ALIGN="CENTER">表</font><font FACE="Times New Roman" SIZE="3">12.7 CSetupDlg</font><font SIZE="3">类的数据成员</font></b></p>
    <table BORDER="1" CELLSPACING="1" CELLPADDING="1" WIDTH="579">
      <tr>
        <td WIDTH="33%"><b><font SIZE="3"><p ALIGN="JUSTIFY">控件</font><font FACE="Times New Roman" SIZE="3">ID</font></b></td>
        <td WIDTH="33%"><font SIZE="3"><b><p ALIGN="JUSTIFY">变量名</b></font></td>
        <td WIDTH="33%"><font SIZE="3"><b><p ALIGN="JUSTIFY">数据类型</b></font></td>
      </tr>
      <tr>
        <td WIDTH="33%"><font FACE="Times New Roman" SIZE="3"><p ALIGN="JUSTIFY">IDC_BAND</font></td>
        <td WIDTH="33%"><font FACE="Times New Roman" SIZE="3"><p ALIGN="JUSTIFY">m_sBaud</font></td>
        <td WIDTH="33%"><font FACE="Times New Roman" SIZE="3"><p ALIGN="JUSTIFY">CString</font></td>
      </tr>
      <tr>
        <td WIDTH="33%"><font FACE="Times New Roman" SIZE="3"><p ALIGN="JUSTIFY">IDC_DATABITS</font></td>
        <td WIDTH="33%"><font FACE="Times New Roman" SIZE="3"><p ALIGN="JUSTIFY">m_sDataBits</font></td>
        <td WIDTH="33%"><font FACE="Times New Roman" SIZE="3"><p ALIGN="JUSTIFY">CString</font></td>
      </tr>
      <tr>
        <td WIDTH="33%"><font FACE="Times New Roman" SIZE="3"><p ALIGN="JUSTIFY">IDC_ECHO</font></td>
        <td WIDTH="33%"><font FACE="Times New Roman" SIZE="3"><p ALIGN="JUSTIFY">m_bEcho</font></td>
        <td WIDTH="33%"><font FACE="Times New Roman" SIZE="3"><p ALIGN="JUSTIFY">BOOL</font></td>
      </tr>
      <tr>
        <td WIDTH="33%"><font FACE="Times New Roman" SIZE="3"><p ALIGN="JUSTIFY">IDC_FLOWCTRL</font></td>
        <td WIDTH="33%"><font FACE="Times New Roman" SIZE="3"><p ALIGN="JUSTIFY">m_nFlowCtrl</font></td>
        <td WIDTH="33%"><font FACE="Times New Roman" SIZE="3"><p ALIGN="JUSTIFY">int</font></td>
      </tr>
      <tr>
        <td WIDTH="33%"><font FACE="Times New Roman" SIZE="3"><p ALIGN="JUSTIFY">IDC_NEWLINE</font></td>
        <td WIDTH="33%"><font FACE="Times New Roman" SIZE="3"><p ALIGN="JUSTIFY">m_bNewLine</font></td>
        <td WIDTH="33%"><font FACE="Times New Roman" SIZE="3"><p ALIGN="JUSTIFY">BOOL</font></td>
      </tr>
      <tr>
        <td WIDTH="33%"><font FACE="Times New Roman" SIZE="3"><p ALIGN="JUSTIFY">IDC_PARITY</font></td>
        <td WIDTH="33%"><font FACE="Times New Roman" SIZE="3"><p ALIGN="JUSTIFY">m_nParity</font></td>
        <td WIDTH="33%"><font FACE="Times New Roman" SIZE="3"><p ALIGN="JUSTIFY">int</font></td>
      </tr>
      <tr>
        <td WIDTH="33%"><font FACE="Times New Roman" SIZE="3"><p ALIGN="JUSTIFY">IDC_PORT</font></td>
        <td WIDTH="33%"><font FACE="Times New Roman" SIZE="3"><p ALIGN="JUSTIFY">m_sPort</font></td>
        <td WIDTH="33%"><font FACE="Times New Roman" SIZE="3"><p ALIGN="JUSTIFY">CString</font></td>
      </tr>
      <tr>
        <td WIDTH="33%"><font FACE="Times New Roman" SIZE="3"><p ALIGN="JUSTIFY">IDC_STOPBITS</font></td>
        <td WIDTH="33%"><font FACE="Times New Roman" SIZE="3"><p ALIGN="JUSTIFY">m_nStopBits</font></td>
        <td WIDTH="33%"><font FACE="Times New Roman" SIZE="3"><p ALIGN="JUSTIFY">int</font></td>
      </tr>
    </table>
    <p><font SIZE="3">　</font><font FACE="Times New Roman" SIZE="3"></p>
    <p ALIGN="JUSTIFY"></font><font SIZE="3">　</font><font FACE="Times New Roman" SIZE="3"></p>
    <blockquote>
      <blockquote>
        </font><font SIZE="3"><p ALIGN="JUSTIFY">按清单</font><font FACE="Times New Roman" SIZE="3">12.6</font><font SIZE="3">、</font><font FACE="Times New Roman" SIZE="3">12.7</font><font SIZE="3">和</font><font FACE="Times New Roman" SIZE="3">12.8</font><font SIZE="3">修改程序。清单</font><font FACE="Times New Roman" SIZE="3">12.6</font><font SIZE="3">列出了</font><font FACE="Times New Roman" SIZE="3">CTerminalDoc</font><font SIZE="3">类的部分代码，清单</font><font FACE="Times New Roman" SIZE="3">12.7</font><font SIZE="3">是</font><font FACE="Times New Roman" SIZE="3">CTerminalView</font><font SIZE="3">的部分代码，清单</font><font FACE="Times New Roman" SIZE="3">12.8</font><font SIZE="3">是</font><font FACE="Times New Roman" SIZE="3">CSetupDlg</font><font SIZE="3">类的部分代码。在本例中使用了</font><font FACE="Times New Roman" SIZE="3">WM_COMMNOTIFY</font><font SIZE="3">消息。虽然在</font><font FACE="Times New Roman" SIZE="3">Win32</font><font SIZE="3">中，</font><font FACE="Times New Roman" SIZE="3">WM_COMMNOTIFY</font><font SIZE="3">消息已经取消，系统自己不会产生该消息，但</font><font FACE="Times New Roman" SIZE="3">Visual C++</font><font SIZE="3">对该消息的定义依然保留。考虑到使用习惯，</font><font FACE="Times New Roman" SIZE="3">Terminal</font><font SIZE="3">程序辅助线程通过发送该消息来通知视图有通信事件发生。</p>
        </font>
      </blockquote>
    </blockquote>
    <p><b><font SIZE="3">　</p>
    <p ALIGN="JUSTIFY">清单</font><font FACE="Times New Roman" SIZE="3">12.6 CTerminalDoc</font><font SIZE="3">类的部分代码</font></b><font FACE="Times New Roman" SIZE="3"></p>
    <p ALIGN="JUSTIFY">// TerminalDoc.h : interface of the CTerminalDoc class</p>
    <p ALIGN="JUSTIFY">//</p>
    <p ALIGN="JUSTIFY">/////////////////////////////////////////////////////////////////////////////</p>
    <p></font><b><font SIZE="3">　</font><font FACE="Times New Roman" SIZE="3"></p>
    <p ALIGN="JUSTIFY"></font><font SIZE="3">　</font><font FACE="Times New Roman" SIZE="3"></p>
    <p ALIGN="JUSTIFY">#define MAXBLOCK 2048</p>
    <p ALIGN="JUSTIFY">#define XON 0x11</p>
    <p ALIGN="JUSTIFY">#define XOFF 0x13</p>
    <p ALIGN="JUSTIFY"></font><font SIZE="3">　</font><font FACE="Times New Roman" SIZE="3"></p>
    <p ALIGN="JUSTIFY">UINT CommProc(LPVOID pParam);</b></p>
    <p ALIGN="JUSTIFY"></font><font SIZE="3">　</font><font FACE="Times New Roman" SIZE="3"></p>
    <p ALIGN="JUSTIFY">class CTerminalDoc : public CDocument</p>
    <p ALIGN="JUSTIFY">{</p>
    <p ALIGN="JUSTIFY">protected: // create from serialization only</p>
    <p ALIGN="JUSTIFY">CTerminalDoc();</p>
    <p ALIGN="JUSTIFY">DECLARE_DYNCREATE(CTerminalDoc)</p>
    <p ALIGN="JUSTIFY"></font><font SIZE="3">　</font><font FACE="Times New Roman" SIZE="3"></p>
    <p ALIGN="JUSTIFY">// Attributes</p>
    <p ALIGN="JUSTIFY">public:</p>
    <p></font><b><font SIZE="3">　</font><font FACE="Times New Roman" SIZE="3"></p>
    <p ALIGN="JUSTIFY">CWinThread* m_pThread; // </font><font SIZE="3">代表辅助线程</font><font FACE="Times New Roman" SIZE="3"></p>
    <p ALIGN="JUSTIFY">volatile BOOL m_bConnected;</p>
    <p ALIGN="JUSTIFY">volatile HWND m_hTermWnd;</p>
    <p ALIGN="JUSTIFY">volatile HANDLE m_hPostMsgEvent; // </font><font SIZE="3">用于</font><font FACE="Times New Roman" SIZE="3">WM_COMMNOTIFY</font><font SIZE="3">消息的事件对象</font><font FACE="Times New Roman" SIZE="3"></p>
    <p ALIGN="JUSTIFY">OVERLAPPED m_osRead, m_osWrite; // </font><font SIZE="3">用于重叠读</font><font FACE="Times New Roman" SIZE="3">/</font><font SIZE="3">写</font><font FACE="Times New Roman" SIZE="3"></p>
    <p ALIGN="JUSTIFY"></font><font SIZE="3">　</font><font FACE="Times New Roman" SIZE="3"></p>
    <p ALIGN="JUSTIFY">volatile HANDLE m_hCom; // </font><font SIZE="3">串行口句柄</font><font FACE="Times New Roman" SIZE="3"></p>
    <p ALIGN="JUSTIFY">int m_nBaud;</p>
    <p ALIGN="JUSTIFY">int m_nDataBits;</p>
    <p ALIGN="JUSTIFY">BOOL m_bEcho;</p>
    <p ALIGN="JUSTIFY">int m_nFlowCtrl;</p>
    <p ALIGN="JUSTIFY">BOOL m_bNewLine;</p>
    <p ALIGN="JUSTIFY">int m_nParity;</p>
    <p ALIGN="JUSTIFY">CString m_sPort;</p>
    <p ALIGN="JUSTIFY">int m_nStopBits;</p>
    <p ALIGN="JUSTIFY"></font></b><font SIZE="3">　</font><font FACE="Times New Roman" SIZE="3"></p>
    <p ALIGN="JUSTIFY"></font><font SIZE="3">　</font><font FACE="Times New Roman" SIZE="3"></p>
    <p ALIGN="JUSTIFY">// Operations</p>
    <p ALIGN="JUSTIFY">public:</p>
    <p></font><b><font SIZE="3">　</font><font FACE="Times New Roman" SIZE="3"></p>
    <p ALIGN="JUSTIFY">BOOL ConfigConnection();</p>
    <p ALIGN="JUSTIFY">BOOL OpenConnection();</p>
    <p ALIGN="JUSTIFY">void CloseConnection();</p>
    <p ALIGN="JUSTIFY">DWORD ReadComm(char *buf,DWORD dwLength);</p>
    <p ALIGN="JUSTIFY">DWORD WriteComm(char *buf,DWORD dwLength);</b></p>
    <p ALIGN="JUSTIFY">// Overrides</p>
    <p ALIGN="JUSTIFY"><b>. . .</b></p>
    <p ALIGN="JUSTIFY">};</p>
    <p ALIGN="JUSTIFY"></font><font SIZE="3">　</font><font FACE="Times New Roman" SIZE="3"></p>
    <p ALIGN="JUSTIFY">/////////////////////////////////////////////////////////////////////////////</p>
    <p ALIGN="JUSTIFY">// TerminalDoc.cpp : implementation of the CTerminalDoc class</p>