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<title>TQIODeviceSource Class</title>
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<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>TQIODeviceSource Class Reference<br><small>[obsolete]</small></h1>
<p>The TQIODeviceSource class is a TQDataSource that draws data from a TQIODevice.
<a href="#details">More...</a>
<p><tt>#include <<a href="tqasyncio-h.html">tqasyncio.h</a>></tt>
<p>Inherits <a href="tqdatasource.html">TQDataSource</a>.
<p><a href="tqiodevicesource-members.html">List of all member functions.</a>
<h2>Public Members</h2>
<ul>
<li class=fn><a href="#TQIODeviceSource"><b>TQIODeviceSource</b></a> ( TQIODevice * device, int buffer_size = 4096 )</li>
<li class=fn><a href="#~TQIODeviceSource"><b>~TQIODeviceSource</b></a> ()</li>
<li class=fn>virtual int <a href="#readyToSend"><b>readyToSend</b></a> ()</li>
<li class=fn>virtual void <a href="#sendTo"><b>sendTo</b></a> ( TQDataSink * sink, int n )</li>
<li class=fn>virtual bool <a href="#rewindable"><b>rewindable</b></a> () const</li>
<li class=fn>virtual void <a href="#enableRewind"><b>enableRewind</b></a> ( bool on )</li>
<li class=fn>virtual void <a href="#rewind"><b>rewind</b></a> ()</li>
</ul>
<hr><a name="details"></a><h2>Detailed Description</h2>
<b>This class is obsolete.</b> It is provided to keep old source working. We strongly advise against using it in new code.
<p> The TQIODeviceSource class is a TQDataSource that draws data from a <a href="tqiodevice.html">TQIODevice</a>.
<p> This class encapsulates retrieving data from a TQIODevice (such as a <a href="tqfile.html">TQFile</a>).
<hr><h2>Member Function Documentation</h2>
<h3 class=fn><a name="TQIODeviceSource"></a>TQIODeviceSource::TQIODeviceSource ( <a href="tqiodevice.html">TQIODevice</a> * device, int buffer_size = 4096 )
</h3>
Constructs a TQIODeviceSource from the <a href="tqiodevice.html">TQIODevice</a> <em>device</em>. The TQIODevice
<em>must</em> be dynamically allocated, becomes owned by the TQIODeviceSource,
and will be deleted when the TQIODeviceSource is destroyed. <em>buffer_size</em>
determines the size of buffering to use between asynchronous operations.
The higher the <em>buffer_size</em>, the more efficient, but the less interleaved
the operation will be with other processing.
<h3 class=fn><a name="~TQIODeviceSource"></a>TQIODeviceSource::~TQIODeviceSource ()
</h3>
Destroys the TQIODeviceSource, deleting the <a href="tqiodevice.html">TQIODevice</a> from which it was
constructed.
<h3 class=fn>void <a name="enableRewind"></a>TQIODeviceSource::enableRewind ( bool on )<tt> [virtual]</tt>
</h3>
If <em>on</em> is set to TRUE then rewinding is enabled.
No special action is taken. If <em>on</em> is set to
FALSE then rewinding is disabled.
<p>Reimplemented from <a href="tqdatasource.html#enableRewind">TQDataSource</a>.
<h3 class=fn>int <a name="readyToSend"></a>TQIODeviceSource::readyToSend ()<tt> [virtual]</tt>
</h3>
Ready until end-of-file.
<p>Reimplemented from <a href="tqdatasource.html#readyToSend">TQDataSource</a>.
<h3 class=fn>void <a name="rewind"></a>TQIODeviceSource::rewind ()<tt> [virtual]</tt>
</h3>
Calls reset() on the <a href="tqiodevice.html">TQIODevice</a>.
<p>Reimplemented from <a href="tqdatasource.html#rewind">TQDataSource</a>.
<h3 class=fn>bool <a name="rewindable"></a>TQIODeviceSource::rewindable () const<tt> [virtual]</tt>
</h3>
All TQIODeviceSource's are rewindable.
<p>Reimplemented from <a href="tqdatasource.html#rewindable">TQDataSource</a>.
<h3 class=fn>void <a name="sendTo"></a>TQIODeviceSource::sendTo ( <a href="tqdatasink.html">TQDataSink</a> * sink, int n )<tt> [virtual]</tt>
</h3>
Reads a block of data and sends up to <em>n</em> bytes to the <em>sink</em>.
<p>Reimplemented from <a href="tqdatasource.html#sendTo">TQDataSource</a>.
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