summaryrefslogtreecommitdiffstats
path: root/doc/html/qbytearray.html
blob: b693ec90d9858c2882406ae646c81fb5368dcc96 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/src/tools/qcstring.cpp:488 -->
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>QByteArray Class</title>
<style type="text/css"><!--
fn { margin-left: 1cm; text-indent: -1cm; }
a:link { color: #004faf; text-decoration: none }
a:visited { color: #672967; text-decoration: none }
body { background: #ffffff; color: black; }
--></style>
</head>
<body>

<table border="0" cellpadding="0" cellspacing="0" width="100%">
<tr bgcolor="#E5E5E5">
<td valign=center>
 <a href="index.html">
<font color="#004faf">Home</font></a>
 | <a href="classes.html">
<font color="#004faf">All&nbsp;Classes</font></a>
 | <a href="mainclasses.html">
<font color="#004faf">Main&nbsp;Classes</font></a>
 | <a href="annotated.html">
<font color="#004faf">Annotated</font></a>
 | <a href="groups.html">
<font color="#004faf">Grouped&nbsp;Classes</font></a>
 | <a href="functions.html">
<font color="#004faf">Functions</font></a>
</td>
<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>

<p>The QByteArray class provides an array of bytes.
<a href="#details">More...</a>
<p>All the functions in this class are <a href="threads.html#reentrant">reentrant</a> when Qt is built with thread support.</p>
<p><tt>#include &lt;<a href="qcstring-h.html">qcstring.h</a>&gt;</tt>
<p>Inherits <a href="qmemarray.html">QMemArray</a>&lt;char&gt;.
<p>Inherited by <a href="qbitarray.html">QBitArray</a> and <a href="qcstring.html">QCString</a>.
<p><a href="qbytearray-members.html">List of all member functions.</a>
<h2>Public Members</h2>
<ul>
<li class=fn><a href="#QByteArray"><b>QByteArray</b></a> ()</li>
<li class=fn><a href="#QByteArray-2"><b>QByteArray</b></a> ( int&nbsp;size )</li>
</ul>
<h2>Related Functions</h2>
<ul>
<li class=fn>QByteArray <a href="#qCompress"><b>qCompress</b></a> ( const&nbsp;QByteArray&nbsp;&amp;&nbsp;data )</li>
<li class=fn>QByteArray <a href="#qCompress-2"><b>qCompress</b></a> ( const&nbsp;uchar&nbsp;*&nbsp;data, int&nbsp;nbytes )</li>
<li class=fn>QByteArray <a href="#qUncompress"><b>qUncompress</b></a> ( const&nbsp;QByteArray&nbsp;&amp;&nbsp;data )</li>
<li class=fn>QByteArray <a href="#qUncompress-2"><b>qUncompress</b></a> ( const&nbsp;uchar&nbsp;*&nbsp;data, int&nbsp;nbytes )</li>
</ul>
<hr><a name="details"></a><h2>Detailed Description</h2>



The QByteArray class provides an array of bytes.
<p> 

<p> The QByteArray class provides an <a href="shclass.html#explicitly-shared">explicitly shared</a> array of bytes.
It is useful for manipulating memory areas with custom data.
QByteArray is implemented as a <a href="qmemarray.html">QMemArray</a>&lt;char&gt;. See the <a href="qmemarray.html">QMemArray</a> documentation for further information.
<p>See also <a href="collection.html">Collection Classes</a> and <a href="tools.html">Non-GUI Classes</a>.

<hr><h2>Member Function Documentation</h2>
<h3 class=fn><a name="QByteArray"></a>QByteArray::QByteArray ()
</h3>

<p> Constructs an empty QByteArray.

<h3 class=fn><a name="QByteArray-2"></a>QByteArray::QByteArray ( int&nbsp;size )
</h3>

<p> Constructs a QByteArray of size <em>size</em>.

<hr><h2>Related Functions</h2>
<h3 class=fn><a href="qbytearray.html">QByteArray</a> <a name="qCompress"></a>qCompress ( const&nbsp;<a href="qbytearray.html">QByteArray</a>&nbsp;&amp;&nbsp;data )
</h3>

<p> 
<p> Compresses the array <em>data</em> and returns the compressed byte
array using zlib.
<p> <p>See also <a href="#qUncompress">qUncompress</a>().

<h3 class=fn><a href="qbytearray.html">QByteArray</a> <a name="qCompress-2"></a>qCompress ( const&nbsp;uchar&nbsp;*&nbsp;data, int&nbsp;nbytes )
</h3>

<p> This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
<p> Compresses the array <em>data</em> which is <em>nbytes</em> long and returns the
compressed byte array.

<h3 class=fn><a href="qbytearray.html">QByteArray</a> <a name="qUncompress"></a>qUncompress ( const&nbsp;<a href="qbytearray.html">QByteArray</a>&nbsp;&amp;&nbsp;data )
</h3>

<p> 
<p> Uncompresses the array <em>data</em> and returns the uncompressed byte
array.
<p> Returns an empty QByteArray if the input data was corrupt.

<p> <p>See also <a href="#qCompress">qCompress</a>().

<h3 class=fn><a href="qbytearray.html">QByteArray</a> <a name="qUncompress-2"></a>qUncompress ( const&nbsp;uchar&nbsp;*&nbsp;data, int&nbsp;nbytes )
</h3>

<p> This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
<p> Uncompresses the array <em>data</em> which is <em>nbytes</em> long and returns
the uncompressed byte array.

<!-- eof -->
<hr><p>
This file is part of the <a href="index.html">Qt toolkit</a>.
Copyright &copy; 1995-2007
<a href="http://www.trolltech.com/">Trolltech</a>. All Rights Reserved.<p><address><hr><div align=center>
<table width=100% cellspacing=0 border=0><tr>
<td>Copyright &copy; 2007
<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
<td align=right><div align=right>Qt 3.3.8</div>
</table></div></address></body>
</html>