classposix__qextserialport.html

来自「qt下 第三方串口类 最新版本 1.2」· HTML 代码 · 共 825 行 · 第 1/5 页

          <td class="memname"><a class="el" href="qextserialbase_8h.html#189ef78c2c1b7537ab114d576f6214fa">DataBitsType</a> QextSerialBase::dataBits           </td>
          <td>(</td>
          <td class="paramname">          </td>
          <td>&nbsp;)&nbsp;</td>
          <td width="100%"> const<code> [virtual, inherited]</code></td>
        </tr>
      </table>
</div>
<div class="memdoc">

<p>
Returns the number of data bits used by the port. For a list of possible values returned by this function, see the definition of the enum DataBitsType. <div class="fragment"><pre class="fragment"><a name="l00113"></a>00113 {
<a name="l00114"></a>00114     <span class="keywordflow">return</span> <a class="code" href="classQextSerialBase.html#2d796e3080f78ff63e821f528439db57">Settings</a>.<a class="code" href="structPortSettings.html#9ec9d5a304b2ac8d3a100d07bce7c0b6">DataBits</a>;
<a name="l00115"></a>00115 }
</pre></div>
<p>

</div>
</div><p>
<a class="anchor" name="bc9dc7c9a7735476800eb5aa35bec6a8"></a><!-- doxytag: member="Posix_QextSerialPort::dsrChanged" ref="bc9dc7c9a7735476800eb5aa35bec6a8" args="(bool status)" -->
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">void QextSerialBase::dsrChanged           </td>
          <td>(</td>
          <td class="paramtype">bool&nbsp;</td>
          <td class="paramname"> <em>status</em>          </td>
          <td>&nbsp;)&nbsp;</td>
          <td width="100%"><code> [signal, inherited]</code></td>
        </tr>
      </table>
</div>
<div class="memdoc">

<p>
This signal is emitted whenever dsr line has changed its state. You may use this signal to check if device is connected. <dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td valign="top"></td><td valign="top"><em>status</em>&nbsp;</td><td><code>true</code> when DSR signal is on, <code>false</code> otherwise.</td></tr>
  </table>
</dl>
<dl compact><dt><b>See also:</b></dt><dd><a class="el" href="classQextSerialBase.html#28b87dd41160a61e2953dca38aa332d6">lineStatus()</a>. </dd></dl>

</div>
</div><p>
<a class="anchor" name="ad41090da77578cfae4b24510fe8c9b7"></a><!-- doxytag: member="Posix_QextSerialPort::flowControl" ref="ad41090da77578cfae4b24510fe8c9b7" args="() const " -->
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname"><a class="el" href="qextserialbase_8h.html#02ad1c7cf791a069dd54e409f8db4790">FlowType</a> QextSerialBase::flowControl           </td>
          <td>(</td>
          <td class="paramname">          </td>
          <td>&nbsp;)&nbsp;</td>
          <td width="100%"> const<code> [virtual, inherited]</code></td>
        </tr>
      </table>
</div>
<div class="memdoc">

<p>
Returns the type of flow control used by the port. For a list of possible values returned by this function, see the definition of the enum FlowType. <div class="fragment"><pre class="fragment"><a name="l00143"></a>00143 {
<a name="l00144"></a>00144     <span class="keywordflow">return</span> <a class="code" href="classQextSerialBase.html#2d796e3080f78ff63e821f528439db57">Settings</a>.<a class="code" href="structPortSettings.html#10720f6217b8d8b90c326ea030c43e30">FlowControl</a>;
<a name="l00145"></a>00145 }
</pre></div>
<p>

</div>
</div><p>
<a class="anchor" name="5f12a1a6c1c6a163fe146272e9a7d275"></a><!-- doxytag: member="Posix_QextSerialPort::flush" ref="5f12a1a6c1c6a163fe146272e9a7d275" args="()" -->
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">void Posix_QextSerialPort::flush           </td>
          <td>(</td>
          <td class="paramname">          </td>
          <td>&nbsp;)&nbsp;</td>
          <td width="100%"><code> [virtual]</code></td>
        </tr>
      </table>
</div>
<div class="memdoc">

<p>
Flushes all pending I/O to the serial port. This function has no effect if the serial port associated with the class is not currently open. 
<p>
Implements <a class="el" href="classQextSerialBase.html#58df9d786aa70dfe9f547d4118103f39">QextSerialBase</a>.<div class="fragment"><pre class="fragment"><a name="l00891"></a>00891 {
<a name="l00892"></a>00892     LOCK_MUTEX();
<a name="l00893"></a>00893     <span class="keywordflow">if</span> (<a class="codeRef" doxygen="qiodevice.tag:" href="qiodevice.html#isOpen">isOpen</a>()) {
<a name="l00894"></a>00894         <a class="code" href="classPosix__QextSerialPort.html#c4fcc5ae9850c3bc9952a13e4ef82273">Posix_File</a>-&gt;flush();
<a name="l00895"></a>00895     }
<a name="l00896"></a>00896     UNLOCK_MUTEX();
<a name="l00897"></a>00897 }
</pre></div>
<p>

</div>
</div><p>
<a class="anchor" name="40543adb7293f5c3d51215c60a0a4bb3"></a><!-- doxytag: member="Posix_QextSerialPort::init" ref="40543adb7293f5c3d51215c60a0a4bb3" args="()" -->
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">void Posix_QextSerialPort::init           </td>
          <td>(</td>
          <td class="paramname">          </td>
          <td>&nbsp;)&nbsp;</td>
          <td width="100%"><code> [private]</code></td>
        </tr>
      </table>
</div>
<div class="memdoc">

<p>
This method is a part of constructor. <div class="fragment"><pre class="fragment"><a name="l00145"></a>00145 {
<a name="l00146"></a>00146     <span class="keywordflow">if</span> (<a class="code" href="classQextSerialBase.html#bebbc04c8a4360cefa33a63dde224a1e">queryMode</a>() == <a class="code" href="classQextSerialBase.html#bab21776f71ceb4989ad2326680143f517be3efd147aa1cbf72ce26c61325ccd">QextSerialBase::EventDriven</a>)
<a name="l00147"></a>00147         qWarning(<span class="stringliteral">"POSIX doesn't have event driven mechanism implemented yet"</span>);
<a name="l00148"></a>00148 }
</pre></div>
<p>

</div>
</div><p>
<a class="anchor" name="099fb47548a3566ed32d4d878fa57f4c"></a><!-- doxytag: member="Posix_QextSerialPort::isSequential" ref="099fb47548a3566ed32d4d878fa57f4c" args="() const " -->
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">bool QextSerialBase::isSequential           </td>
          <td>(</td>
          <td class="paramname">          </td>
          <td>&nbsp;)&nbsp;</td>
          <td width="100%"> const<code> [virtual, inherited]</code></td>
        </tr>
      </table>
</div>
<div class="memdoc">

<p>
Returns true if device is sequential, otherwise returns false. Serial port is sequential device so this function always returns true. Check <a class="elRef" doxygen="qiodevice.tag:" href="qiodevice.html#isSequential">QIODevice::isSequential()</a> documentation for more information. <div class="fragment"><pre class="fragment"><a name="l00154"></a>00154 {
<a name="l00155"></a>00155     <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00156"></a>00156 }
</pre></div>
<p>

</div>
</div><p>
<a class="anchor" name="e4029cb49127422b7e76586930366b05"></a><!-- doxytag: member="Posix_QextSerialPort::lastError" ref="e4029cb49127422b7e76586930366b05" args="() const " -->
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">ulong QextSerialBase::lastError           </td>
          <td>(</td>
          <td class="paramname">          </td>
          <td>&nbsp;)&nbsp;</td>
          <td width="100%"> const<code> [virtual, inherited]</code></td>
        </tr>
      </table>
</div>
<div class="memdoc">

<p>
Returns the code for the last error encountered by the port, or E_NO_ERROR if the l