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120 lines
5.2 KiB
120 lines
5.2 KiB
14 years ago
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/src/tools/qcstring.cpp:488 -->
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
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<title>QByteArray Class</title>
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<style type="text/css"><!--
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--></style>
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<table border="0" cellpadding="0" cellspacing="0" width="100%">
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<tr bgcolor="#E5E5E5">
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<td valign=center>
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<a href="index.html">
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<font color="#004faf">Home</font></a>
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<font color="#004faf">All Classes</font></a>
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<font color="#004faf">Main Classes</font></a>
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<font color="#004faf">Functions</font></a>
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</td>
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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>QByteArray Class Reference</h1>
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<p>The QByteArray class provides an array of bytes.
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<a href="#details">More...</a>
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<p>All the functions in this class are <a href="threads.html#reentrant">reentrant</a> when Qt is built with thread support.</p>
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<p><tt>#include <<a href="qcstring-h.html">qcstring.h</a>></tt>
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<p>Inherits <a href="qmemarray.html">QMemArray</a><char>.
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<p>Inherited by <a href="qbitarray.html">QBitArray</a> and <a href="qcstring.html">QCString</a>.
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<p><a href="qbytearray-members.html">List of all member functions.</a>
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<h2>Public Members</h2>
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<ul>
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<li class=fn><a href="#QByteArray"><b>QByteArray</b></a> ()</li>
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<li class=fn><a href="#QByteArray-2"><b>QByteArray</b></a> ( int size )</li>
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</ul>
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<h2>Related Functions</h2>
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<ul>
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<li class=fn>QByteArray <a href="#qCompress"><b>qCompress</b></a> ( const QByteArray & data )</li>
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<li class=fn>QByteArray <a href="#qCompress-2"><b>qCompress</b></a> ( const uchar * data, int nbytes )</li>
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<li class=fn>QByteArray <a href="#qUncompress"><b>qUncompress</b></a> ( const QByteArray & data )</li>
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<li class=fn>QByteArray <a href="#qUncompress-2"><b>qUncompress</b></a> ( const uchar * data, int nbytes )</li>
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</ul>
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<hr><a name="details"></a><h2>Detailed Description</h2>
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The QByteArray class provides an array of bytes.
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<p>
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<p> The QByteArray class provides an <a href="shclass.html#explicitly-shared">explicitly shared</a> array of bytes.
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It is useful for manipulating memory areas with custom data.
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QByteArray is implemented as a <a href="qmemarray.html">QMemArray</a><char>. See the <a href="qmemarray.html">QMemArray</a> documentation for further information.
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<p>See also <a href="collection.html">Collection Classes</a> and <a href="tools.html">Non-GUI Classes</a>.
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<hr><h2>Member Function Documentation</h2>
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<h3 class=fn><a name="QByteArray"></a>QByteArray::QByteArray ()
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</h3>
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<p> Constructs an empty QByteArray.
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<h3 class=fn><a name="QByteArray-2"></a>QByteArray::QByteArray ( int size )
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</h3>
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<p> Constructs a QByteArray of size <em>size</em>.
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<hr><h2>Related Functions</h2>
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<h3 class=fn><a href="qbytearray.html">QByteArray</a> <a name="qCompress"></a>qCompress ( const <a href="qbytearray.html">QByteArray</a> & data )
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</h3>
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<p>
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<p> Compresses the array <em>data</em> and returns the compressed byte
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array using zlib.
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<p> <p>See also <a href="#qUncompress">qUncompress</a>().
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<h3 class=fn><a href="qbytearray.html">QByteArray</a> <a name="qCompress-2"></a>qCompress ( const uchar * data, int nbytes )
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</h3>
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<p> This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
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<p> Compresses the array <em>data</em> which is <em>nbytes</em> long and returns the
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compressed byte array.
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<h3 class=fn><a href="qbytearray.html">QByteArray</a> <a name="qUncompress"></a>qUncompress ( const <a href="qbytearray.html">QByteArray</a> & data )
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</h3>
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<p>
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<p> Uncompresses the array <em>data</em> and returns the uncompressed byte
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array.
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<p> Returns an empty QByteArray if the input data was corrupt.
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<p> <p>See also <a href="#qCompress">qCompress</a>().
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<h3 class=fn><a href="qbytearray.html">QByteArray</a> <a name="qUncompress-2"></a>qUncompress ( const uchar * data, int nbytes )
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</h3>
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<p> This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
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<p> Uncompresses the array <em>data</em> which is <em>nbytes</em> long and returns
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the uncompressed byte array.
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<!-- eof -->
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<hr><p>
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This file is part of the <a href="index.html">Qt toolkit</a>.
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Copyright © 1995-2007
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<a href="http://www.trolltech.com/">Trolltech</a>. All Rights Reserved.<p><address><hr><div align=center>
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<table width=100% cellspacing=0 border=0><tr>
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<td>Copyright © 2007
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<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
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<td align=right><div align=right>Qt 3.3.8</div>
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</table></div></address></body>
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</html>
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