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<title>Handshaking constants</title>
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<h1>Handshaking constants</h1>
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<h2><a name="Overview">Overview</a></h2>
<h5>Defined in</h5>
<p><code>ccomms.oxh</code></p>
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<td><code>KConfigObeyXoff&</code></td>
<td>Obey incoming XON and XOFF characters </td>
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<td><code>KConfigObeyDSR&</code></td>
<td>Obey the input DSR control line</td>
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<td><code>KConfigObeyDCD&</code></td>
<td>Obey the input DCD control line</td>
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<td><code>KConfigObeyCTS&</code></td>
<td>Obey the input CTS Signal</td>
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<td><code>KConfigSendXoff&</code></td>
<td>Send XON and XOFF characters</td>
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<td><code>KConfigFreeRTS&</code></td>
<td>The output RTS line should not be controlled by the
driver</td>
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<td><code>KConfigFreeDTR&</code></td>
<td>The output DTR line should not be controlled by the
driver</td>
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<td><code>KConfigFailDSR&</code></td>
<td>Complete any pending operations. <font size="4"><tt>KErrLineFail</tt></font>
if the DSR input ever goes low</td>
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<td><code>KConfigFailDCD&</code></td>
<td>Complete any pending operations. <font size="4"><tt>KErrLineFail</tt></font>
if the DCD input ever goes low</td>
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<td><code>KConfigFailCTS&</code></td>
<td>Complete any pending operations. <font size="4"><tt>KErrLineFail</tt></font>
if the CTS input ever goes low</td>
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<tr>
<td><code>KConfigWriteBufferComplete&</code></td>
<td>Complete any write operations as soon as the data has
been placed in the output buffer instead of waiting until
it has left the transmitter</td>
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<h5>See Also</h5>
<p><a href="handcap.htm">Handshaking capabilities</a>, <a
href="commcfg1.htm#Handshaking">CommConfigHandshake</a>, <a
href="commcfg1.htm#SetHandshake">CommConfigSetHandshake</a></p>
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