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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 | <html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><title>gio.MemoryOutputStream</title><link rel="stylesheet" type="text/css" href="style.css"><meta name="generator" content="DocBook XSL Stylesheets V1.76.1"><link rel="home" href="index.html" title="PyGObject Reference Manual"><link rel="up" href="gio-class-reference.html" title="PyGio Class Reference"><link rel="prev" href="class-giomemoryinputstream.html" title="gio.MemoryInputStream"><link rel="next" href="class-giomount.html" title="gio.Mount"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">gio.MemoryOutputStream</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="class-giomemoryinputstream.html">Prev</a> </td><th width="60%" align="center">PyGio Class Reference</th><td width="20%" align="right"> <a accesskey="n" href="class-giomount.html">Next</a></td></tr></table><hr></div><div class="refentry" title="gio.MemoryOutputStream"><a name="class-giomemoryoutputstream"></a><div class="titlepage"></div><div class="refnamediv"><h2>gio.MemoryOutputStream</h2><p>gio.MemoryOutputStream — Streaming output operations on memory chunks</p></div><div class="refsect1" title="Synopsis"><a name="id518676"></a><h2>Synopsis</h2><table bgcolor="#D0E0F0" width="100%"><tr><td><pre class="classsynopsis">class <span class="ooclass"><span class="classname">gio.MemoryOutputStream</span></span>(<span class="ooclass"><span class="classname"><a class="link" href="class-giooutputstream.html" title="gio.OutputStream">gio.OutputStream</a></span></span>):
<code class="constructorsynopsis"> <span class="methodname"><a class="link" href="class-giomemoryoutputstream.html#constructor-giomemoryoutputstream" title="Constructor">gio.MemoryOutputStream</a></span>(<span class="methodparam"></span>)</code><br><code class="methodsynopsis"> def <span class="methodname"><a class="link" href="class-giomemoryoutputstream.html#method-giomemoryoutputstream--get-contents" title="gio.MemoryOutputStream.get_contents">get_contents</a></span>(<span class="methodparam"></span>)</code><br><code class="methodsynopsis"> def <span class="methodname"><a class="link" href="class-giomemoryoutputstream.html#method-giomemoryoutputstream--get-data-size" title="gio.MemoryOutputStream.get_data_size">get_data_size</a></span>(<span class="methodparam"></span>)</code><br><code class="methodsynopsis"> def <span class="methodname"><a class="link" href="class-giomemoryoutputstream.html#method-giomemoryoutputstream--get-size" title="gio.MemoryOutputStream.get_size">get_size</a></span>(<span class="methodparam"></span>)</code><br></pre></td></tr></table></div><div class="refsect1" title="Ancestry"><a name="id518772"></a><h2>Ancestry</h2><pre class="synopsis">+-- <a class="link" href="class-gobject.html" title="gobject.GObject">gobject.GObject</a>
+-- <a class="link" href="class-giooutputstream.html" title="gio.OutputStream">gio.OutputStream</a>
+-- <a class="link" href="class-giomemoryoutputstream.html" title="gio.MemoryOutputStream">gio.MemoryOutputStream</a>
</pre></div><div class="refsect1" title="Implemented Interfaces"><a name="id518799"></a><h2>Implemented Interfaces</h2><p>
<a class="link" href="class-giomemoryoutputstream.html" title="gio.MemoryOutputStream"><code class="classname">gio.MemoryOutputStream</code></a>
implements
<a class="link" href="class-gioseekable.html" title="gio.Seekable"><code class="classname">gio.Seekable</code></a>
</p></div><div class="refsect1" title="Description"><a name="id518821"></a><h2>Description</h2><p>
<a class="link" href="class-giomemoryoutputstream.html" title="gio.MemoryOutputStream"><code class="classname">gio.MemoryOutputStream</code></a>
is a class for using arbitrary memory chunks as output for GIO streaming output operations.
</p></div><div class="refsect1" title="Constructor"><a name="constructor-giomemoryoutputstream"></a><h2>Constructor</h2><pre class="programlisting"><code class="constructorsynopsis"> <span class="methodname">gio.MemoryOutputStream</span>(<span class="methodparam"></span>)</code></pre><table border="0" width="100%" bgcolor="#FFECCE"><col align="left" valign="top" width="0*"><tbody><tr><td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td><td>a new
<a class="link" href="class-giomemoryoutputstream.html" title="gio.MemoryOutputStream"><code class="classname">gio.MemoryOutputStream</code></a>.
</td></tr></tbody></table><p>
Creates a new
<a class="link" href="class-giomemoryoutputstream.html" title="gio.MemoryOutputStream"><code class="classname">gio.MemoryOutputStream</code></a>.
</p></div><div class="refsect1" title="Methods"><a name="id518896"></a><h2>Methods</h2><div class="refsect2" title="gio.MemoryOutputStream.get_contents"><a name="method-giomemoryoutputstream--get-contents"></a><h3>gio.MemoryOutputStream.get_contents</h3><pre class="programlisting"><code class="methodsynopsis"> def <span class="methodname">get_contents</span>(<span class="methodparam"></span>)</code></pre><table border="0" width="100%" bgcolor="#FFECCE"><col align="left" valign="top" width="0*"><tbody><tr><td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td><td>the stream's data
</td></tr></tbody></table><p>
The <code class="methodname">get_contents</code>() method gets any loaded data
from the ostream.
</p><p>
Note that the returned data may become invalid on the next write or truncate
operation on the stream.
</p></div><div class="refsect2" title="gio.MemoryOutputStream.get_data_size"><a name="method-giomemoryoutputstream--get-data-size"></a><h3>gio.MemoryOutputStream.get_data_size</h3><pre class="programlisting"><code class="methodsynopsis"> def <span class="methodname">get_data_size</span>(<span class="methodparam"></span>)</code></pre><table border="0" width="100%" bgcolor="#FFECCE"><col align="left" valign="top" width="0*"><tbody><tr><td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td><td>the number of bytes written to the stream
</td></tr></tbody></table><p>
The <code class="methodname">get_data_size</code>() method returns the number
of bytes from the start up to including the last byte written in the
stream that has not been truncated away.
</p></div><div class="refsect2" title="gio.MemoryOutputStream.get_size"><a name="method-giomemoryoutputstream--get-size"></a><h3>gio.MemoryOutputStream.get_size</h3><pre class="programlisting"><code class="methodsynopsis"> def <span class="methodname">get_size</span>(<span class="methodparam"></span>)</code></pre><table border="0" width="100%" bgcolor="#FFECCE"><col align="left" valign="top" width="0*"><tbody><tr><td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td><td>the number of bytes allocated for the data buffer
</td></tr></tbody></table><p>
The <code class="methodname">get_size</code>() method gets the size of the
currently allocated data area (availible from
<code class="methodname"><a class="link" href="class-giomemoryoutputstream.html#method-giomemoryoutputstream--get-contents" title="gio.MemoryOutputStream.get_contents">gio.MemoryOutputStream.get_contents</a></code>()
).
</p><p>
Note that for growable streams the returned size may become invalid on the next write or truncate operation on the stream.
</p><p>
If you want the number of bytes currently written to the stream, use
<code class="methodname"><a class="link" href="class-giomemoryoutputstream.html#method-giomemoryoutputstream--get-data-size" title="gio.MemoryOutputStream.get_data_size">gio.MemoryOutputStream.get_data_size</a></code>().
</p></div></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="class-giomemoryinputstream.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="gio-class-reference.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="class-giomount.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">gio.MemoryInputStream </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> gio.Mount</td></tr></table></div></body></html>
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