classwin__qextserialport.html

linux下的串口通讯程序.用于开发串口程序很方便

<a name="l00090"></a>00090     <a class="code" href="classWin__QextSerialPort.html#40f1d5f9474e35c227e2d7ac681bb9a7">setTimeout</a>(settings.<a class="code" href="structPortSettings.html#159ca543549b3b872917fc4ef0757b60">Timeout_Sec</a>, settings.<a class="code" href="structPortSettings.html#c1b008038ad143262a2ee18247fe2c39">Timeout_Millisec</a>);
<a name="l00091"></a>00091 }
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<a class="anchor" name="5701350b1c29e6187e4f50946b88a855"></a><!-- doxytag: member="Win_QextSerialPort::Win_QextSerialPort" ref="5701350b1c29e6187e4f50946b88a855" args="(const QString &amp;name, const PortSettings &amp;settings)" -->
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          <td class="memname">Win_QextSerialPort::Win_QextSerialPort           </td>
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          <td class="paramtype">const QString &amp;&nbsp;</td>
          <td class="paramname"> <em>name</em>, </td>
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          <td class="paramtype">const <a class="el" href="structPortSettings.html">PortSettings</a> &amp;&nbsp;</td>
          <td class="paramname"> <em>settings</em></td><td>&nbsp;</td>
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Constructs a port with specified name and settings. <div class="fragment"><pre class="fragment"><a name="l00097"></a>00097                                                                                          {
<a name="l00098"></a>00098     <a class="code" href="classWin__QextSerialPort.html#f6dae6bb1c6b51e766e551bc11f1721d">Win_Handle</a>=INVALID_HANDLE_VALUE;
<a name="l00099"></a>00099     <a class="code" href="classQextSerialBase.html#1c9f83f00f0ea53ee06b757e197cdf64">setPortName</a>(name);
<a name="l00100"></a>00100     <a class="code" href="classWin__QextSerialPort.html#a5578e4862e3743da2a923f082f821d6">setBaudRate</a>(settings.<a class="code" href="structPortSettings.html#be617f3545d6be4587e1a0700a0b0e5b">BaudRate</a>);
<a name="l00101"></a>00101     <a class="code" href="classWin__QextSerialPort.html#33168191b03365b429b8413f6286f4c8">setDataBits</a>(settings.<a class="code" href="structPortSettings.html#9ec9d5a304b2ac8d3a100d07bce7c0b6">DataBits</a>);
<a name="l00102"></a>00102     <a class="code" href="classWin__QextSerialPort.html#67fc083cb06b6b1872fc4360cd599821">setStopBits</a>(settings.<a class="code" href="structPortSettings.html#0752c70eb7e12f02ddf59739a056b04c">StopBits</a>);
<a name="l00103"></a>00103     <a class="code" href="classWin__QextSerialPort.html#bae5c88ee4e09908766febede36a682a">setParity</a>(settings.<a class="code" href="structPortSettings.html#8d0bfbdcb40e9e3919e3f9829ae72582">Parity</a>);
<a name="l00104"></a>00104     <a class="code" href="classWin__QextSerialPort.html#7660b3b66f45ce087ea14572e753f44d">setFlowControl</a>(settings.<a class="code" href="structPortSettings.html#10720f6217b8d8b90c326ea030c43e30">FlowControl</a>);
<a name="l00105"></a>00105     <a class="code" href="classWin__QextSerialPort.html#40f1d5f9474e35c227e2d7ac681bb9a7">setTimeout</a>(settings.<a class="code" href="structPortSettings.html#159ca543549b3b872917fc4ef0757b60">Timeout_Sec</a>, settings.<a class="code" href="structPortSettings.html#c1b008038ad143262a2ee18247fe2c39">Timeout_Millisec</a>);
<a name="l00106"></a>00106 }
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<a class="anchor" name="6700be65cee973991ccf77a6afdf131a"></a><!-- doxytag: member="Win_QextSerialPort::~Win_QextSerialPort" ref="6700be65cee973991ccf77a6afdf131a" args="()" -->
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          <td class="memname">Win_QextSerialPort::~Win_QextSerialPort           </td>
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Standard destructor. <div class="fragment"><pre class="fragment"><a name="l00112"></a>00112                                         {
<a name="l00113"></a>00113     <span class="keywordflow">if</span> (<a class="codeRef" doxygen="qiodevice.tag:http://doc.trolltech.com/" href="http://doc.trolltech.com/qiodevice.html#isOpen">isOpen</a>()) {
<a name="l00114"></a>00114         <a class="code" href="classWin__QextSerialPort.html#fd2a4f6a94c877e5ae2dbf742af61b1d">close</a>();
<a name="l00115"></a>00115     }
<a name="l00116"></a>00116 }
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<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="573bd8fdf0ea5e4fb6caddc13a0ed5eb"></a><!-- doxytag: member="Win_QextSerialPort::atEnd" ref="573bd8fdf0ea5e4fb6caddc13a0ed5eb" args="() const " -->
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          <td class="memname">bool QextSerialBase::atEnd           </td>
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This function will return true if the input buffer is empty (or on error), and false otherwise. Call <a class="el" href="classQextSerialBase.html#e4029cb49127422b7e76586930366b05">QextSerialBase::lastError()</a> for error information. <div class="fragment"><pre class="fragment"><a name="l00187"></a>00187 {
<a name="l00188"></a>00188     <span class="keywordflow">if</span> (<a class="code" href="classQextSerialBase.html#86fc9d6239b7d136a9d80b93a727e093">size</a>()) {
<a name="l00189"></a>00189         <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00190"></a>00190     }
<a name="l00191"></a>00191     <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00192"></a>00192 }
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<a class="anchor" name="6d6eeab48cad2fa2adbebb23920c661a"></a><!-- doxytag: member="Win_QextSerialPort::baudRate" ref="6d6eeab48cad2fa2adbebb23920c661a" args="() const " -->
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          <td class="memname"><a class="el" href="qextserialbase_8h.html#6f031169a6a9b150b5af707bb23cf010">BaudRateType</a> QextSerialBase::baudRate           </td>
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Returns the baud rate of the serial port. For a list of possible return values see the definition of the enum BaudRateType. <div class="fragment"><pre class="fragment"><a name="l00126"></a>00126 {
<a name="l00127"></a>00127     <span class="keywordflow">return</span> <a class="code" href="classQextSerialBase.html#2d796e3080f78ff63e821f528439db57">Settings</a>.<a class="code" href="structPortSettings.html#be617f3545d6be4587e1a0700a0b0e5b">BaudRate</a>;
<a name="l00128"></a>00128 }
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<a class="anchor" name="8c76fa901fd01f97f57addad088c3e2c"></a><!-- doxytag: member="Win_QextSerialPort::bytesAvailable" ref="8c76fa901fd01f97f57addad088c3e2c" args="()" -->
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          <td class="memname">qint64 Win_QextSerialPort::bytesAvailable           </td>
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Returns the number of bytes waiting in the port's receive queue. This function will return 0 if the port is not currently open, or -1 on error. Error information can be retrieved by calling Win_QextSerialPort::getLastError(). 
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Implements <a class="el" href="classQextSerialBase.html#7e130a0ba5a0a9ba95ce5f75a5e2c526">QextSerialBase</a>.<div class="fragment"><pre class="fragment"><a name="l00229"></a>00229                                           {
<a name="l00230"></a>00230     LOCK_MUTEX();
<a name="l00231"></a>00231     <span class="keywordflow">if</span> (<a class="codeRef" doxygen="qiodevice.tag:http://doc.trolltech.com/" href="http://doc.trolltech.com/qiodevice.html#isOpen">isOpen</a>()) {
<a name="l00232"></a>00232         DWORD Errors;
<a name="l00233"></a>00233         COMSTAT Status;
<a name="l00234"></a>00234         <span class="keywordtype">bool</span> success=ClearCommError(<a class="code" href="classWin__QextSerialPort.html#f6dae6bb1c6b51e766e551bc11f1721d">Win_Handle</a>, &amp;Errors, &amp;Status);
<a name="l00235"></a>00235         <a class="code" href="classWin__QextSerialPort.html#bf215448e265ab0bc8d06cb05e0f7778">translateError</a>(Errors);
<a name="l00236"></a>00236         <span class="keywordflow">if</span> (success) {
<a name="l00237"></a>00237             <a class="code" href="classQextSerialBase.html#31816951ba89902fa1dfdb6f18b80f41">lastErr</a>=E_NO_ERROR;
<a name="l00238"></a>00238             UNLOCK_MUTEX();
<a name="l00239"></a>00239             <span class="keywordflow">return</span> Status.cbInQue + <a class="codeRef" doxygen="qiodevice.tag:http://doc.trolltech.com/" href="http://doc.trolltech.com/qiodevice.html#bytesAvailable">QIODevice::bytesAvailable</a>();
<a name="l00240"></a>00240         }
<a name="l00241"></a>00241         UNLOCK_MUTEX();
<a name="l00242"></a>00242         <span class="keywordflow">return</span> (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>)-1;
<a name="l00243"></a>00243     }
<a name="l00244"></a>00244     UNLOCK_MUTEX();