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<title>Qt 4.2: Qt 3 Support Members for QAbstractSocket</title>
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<td width="1"> </td><td class="postheader" valign="center"><a href="index.html"><font color="#004faf">Home</font></a> · <a href="classes.html"><font color="#004faf">All Classes</font></a> · <a href="mainclasses.html"><font color="#004faf">Main Classes</font></a> · <a href="groups.html"><font color="#004faf">Grouped Classes</font></a> · <a href="modules.html"><font color="#004faf">Modules</font></a> · <a href="functions.html"><font color="#004faf">Functions</font></a></td>
<td align="right" valign="top" width="230"><a href="http://www.trolltech.com"><img src="images/trolltech-logo.png" align="right" width="203" height="32" border="0" /></a></td></tr></table><h1 align="center">Qt 3 Support Members for QAbstractSocket</h1>
<p><b>The following class members are part of the <a href="qt3support.html">Qt 3 support layer</a>.</b> They are provided to help you port old code to Qt 4. We advise against using them in new code.</p>
<p><ul><li><a href="qabstractsocket.html">QAbstractSocket class reference</a></li></ul></p>
<h3>Public Types</h3>
<ul>
<li><div class="fn"/>enum <b><a href="qabstractsocket-qt3.html#Error-enum">Error</a></b> { ErrConnectionRefused, ErrHostNotFound, ErrSocketRead }</li>
<li><div class="fn"/>typedef <b><a href="qabstractsocket-qt3.html#State-typedef">State</a></b></li>
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<h3>Public Functions</h3>
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<li><div class="fn"/>void <b><a href="qabstractsocket-qt3.html#setSocket">setSocket</a></b> ( int <i>socket</i> )</li>
<li><div class="fn"/>int <b><a href="qabstractsocket-qt3.html#socket">socket</a></b> () const</li>
<li><div class="fn"/>qulonglong <b><a href="qabstractsocket-qt3.html#waitForMore">waitForMore</a></b> ( int <i>msecs</i>, bool * <i>timeout</i> = 0 ) const</li>
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<li><div class="fn"/>22 public functions inherited from <a href="qiodevice.html#public-functions">QIODevice</a></li>
<li><div class="fn"/>8 public functions inherited from <a href="qobject.html#public-functions">QObject</a></li>
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<h3>Signals</h3>
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<li><div class="fn"/>void <b><a href="qabstractsocket-qt3.html#connectionClosed">connectionClosed</a></b> ()</li>
<li><div class="fn"/>void <b><a href="qabstractsocket-qt3.html#delayedCloseFinished">delayedCloseFinished</a></b> ()</li>
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<h2>Member Type Documentation</h2>
<h3 class="fn"><a name="Error-enum"></a>enum QAbstractSocket::Error</h3>
<p>Use <a href="qabstractsocket.html#SocketError-enum">QAbstractSocket::SocketError</a> instead.</p>
<p><table border="1" cellpadding="2" cellspacing="1" width="100%">
<tr><th width="25%">Constant</th><th width="15%">Value</th><th width="60%">Description</th></tr>
<tr><td valign="top"><tt>QAbstractSocket::ErrConnectionRefused</tt></td><td align="center" valign="top"><tt>ConnectionRefusedError</tt></td><td valign="top">Use <a href="qabstractsocket.html#SocketError-enum">QAbstractSocket::ConnectionRefusedError</a> instead.</td></tr>
<tr><td valign="top"><tt>QAbstractSocket::ErrHostNotFound</tt></td><td align="center" valign="top"><tt>HostNotFoundError</tt></td><td valign="top">Use <a href="qabstractsocket.html#SocketError-enum">QAbstractSocket::HostNotFoundError</a> instead.</td></tr>
<tr><td valign="top"><tt>QAbstractSocket::ErrSocketRead</tt></td><td align="center" valign="top"><tt>UnknownSocketError</tt></td><td valign="top">Use <a href="qabstractsocket.html#SocketError-enum">QAbstractSocket::UnknownSocketError</a> instead.</td></tr>
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<h3 class="fn"><a name="State-typedef"></a>typedef QAbstractSocket::State</h3>
<p>Use <a href="qabstractsocket.html#SocketState-enum">QAbstractSocket::SocketState</a> instead.</p>
<p><table align="center" cellpadding="2" cellspacing="1" border="0">
<thead><tr valign="top" class="qt-style"><th>Qt 3 enum value</th><th>Qt 4 enum value</th></tr></thead>
<tr valign="top" class="odd"><td><tt>Idle</tt></td><td><a href="qabstractsocket.html#SocketState-enum">UnconnectedState</a></td></tr>
<tr valign="top" class="even"><td><tt>HostLookup</tt></td><td><a href="qabstractsocket.html#SocketState-enum">HostLookupState</a></td></tr>
<tr valign="top" class="odd"><td><tt>Connecting</tt></td><td><a href="qabstractsocket.html#SocketState-enum">ConnectingState</a></td></tr>
<tr valign="top" class="even"><td><tt>Connected</tt></td><td><a href="qabstractsocket.html#SocketState-enum">ConnectedState</a></td></tr>
<tr valign="top" class="odd"><td><tt>Closing</tt></td><td><a href="qabstractsocket.html#SocketState-enum">ClosingState</a></td></tr>
<tr valign="top" class="even"><td><tt>Connection</tt></td><td><a href="qabstractsocket.html#SocketState-enum">ConnectedState</a></td></tr>
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<h2>Member Function Documentation</h2>
<h3 class="fn"><a name="connectionClosed"></a>void QAbstractSocket::connectionClosed () <tt> [signal]</tt></h3>
<p>Use closed() instead.</p>
<h3 class="fn"><a name="delayedCloseFinished"></a>void QAbstractSocket::delayedCloseFinished () <tt> [signal]</tt></h3>
<p>Use closed() instead.</p>
<h3 class="fn"><a name="setSocket"></a>void QAbstractSocket::setSocket ( int <i>socket</i> )</h3>
<p>Use <a href="qabstractsocket.html#setSocketDescriptor">setSocketDescriptor</a>() instead.</p>
<p>See also <a href="qabstractsocket-qt3.html#socket">socket</a>().</p>
<h3 class="fn"><a name="socket"></a>int QAbstractSocket::socket () const</h3>
<p>Use <a href="qabstractsocket.html#socketDescriptor">socketDescriptor</a>() instead.</p>
<p>See also <a href="qabstractsocket-qt3.html#setSocket">setSocket</a>().</p>
<h3 class="fn"><a name="waitForMore"></a><a href="qtglobal.html#qulonglong-typedef">qulonglong</a> QAbstractSocket::waitForMore ( int <i>msecs</i>, bool * <i>timeout</i> = 0 ) const</h3>
<p>Use <a href="qiodevice.html#waitForReadyRead">waitForReadyRead</a>() instead.</p>
<p>For example, if you have code like</p>
<pre><font color="#404040"> bool timeout;
Q_ULONG numBytes = socket->waitForMore(30000, &timeout);</font></pre>
<p>you can rewrite it as</p>
<pre> qint64 numBytes = 0;
if (socket->waitForReadyRead(msecs))
numBytes = socket->bytesAvailable();
bool timeout = (error() == QAbstractSocket::SocketTimeoutError);</pre>
<p>See also <a href="qiodevice.html#waitForReadyRead">waitForReadyRead</a>(), <a href="qabstractsocket.html#bytesAvailable">bytesAvailable</a>(), <a href="qabstractsocket.html#error">error</a>(), and <a href="qabstractsocket.html#SocketError-enum">SocketTimeoutError</a>.</p>
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