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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<title>Getting and Setting File Information: GnomeVFS - Filesystem Abstraction library</title>
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<a href="#" class="shortcut">Top</a><span id="nav_description">  <span class="dim">|</span> 
                  <a href="#gnome-vfs-2.0-gnome-vfs-file-info-ops.description" class="shortcut">Description</a></span>
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<td><a accesskey="h" href="index.html"><img src="home.png" width="16" height="16" border="0" alt="Home"></a></td>
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<div class="refentry">
<a name="gnome-vfs-2.0-gnome-vfs-file-info-ops"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="gnome-vfs-2.0-gnome-vfs-file-info-ops.top_of_page"></a>Getting and Setting File Information</span></h2>
<p>Getting and Setting File Information — Convenient high-level abstraction for obtaining and setting file information, including ACLs.</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="gnome-vfs-2.0-gnome-vfs-file-info-ops.functions"></a><h2>Functions</h2>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="functions_return">
<col class="functions_name">
</colgroup>
<tbody>
<tr>
<td class="function_type">
<a class="link" href="gnome-vfs-2.0-gnome-vfs-result.html#GnomeVFSResult" title="enum GnomeVFSResult"><span class="returnvalue">GnomeVFSResult</span></a>
</td>
<td class="function_name">
<a class="link" href="gnome-vfs-2.0-gnome-vfs-file-info-ops.html#gnome-vfs-get-file-info" title="gnome_vfs_get_file_info ()">gnome_vfs_get_file_info</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="gnome-vfs-2.0-gnome-vfs-result.html#GnomeVFSResult" title="enum GnomeVFSResult"><span class="returnvalue">GnomeVFSResult</span></a>
</td>
<td class="function_name">
<a class="link" href="gnome-vfs-2.0-gnome-vfs-file-info-ops.html#gnome-vfs-get-file-info-uri" title="gnome_vfs_get_file_info_uri ()">gnome_vfs_get_file_info_uri</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="gnome-vfs-2.0-gnome-vfs-result.html#GnomeVFSResult" title="enum GnomeVFSResult"><span class="returnvalue">GnomeVFSResult</span></a>
</td>
<td class="function_name">
<a class="link" href="gnome-vfs-2.0-gnome-vfs-file-info-ops.html#gnome-vfs-get-file-info-from-handle" title="gnome_vfs_get_file_info_from_handle ()">gnome_vfs_get_file_info_from_handle</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="gnome-vfs-2.0-gnome-vfs-result.html#GnomeVFSResult" title="enum GnomeVFSResult"><span class="returnvalue">GnomeVFSResult</span></a>
</td>
<td class="function_name">
<a class="link" href="gnome-vfs-2.0-gnome-vfs-file-info-ops.html#gnome-vfs-set-file-info-uri" title="gnome_vfs_set_file_info_uri ()">gnome_vfs_set_file_info_uri</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="gnome-vfs-2.0-gnome-vfs-result.html#GnomeVFSResult" title="enum GnomeVFSResult"><span class="returnvalue">GnomeVFSResult</span></a>
</td>
<td class="function_name">
<a class="link" href="gnome-vfs-2.0-gnome-vfs-file-info-ops.html#gnome-vfs-set-file-info" title="gnome_vfs_set_file_info ()">gnome_vfs_set_file_info</a> <span class="c_punctuation">()</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="gnome-vfs-2.0-gnome-vfs-file-info-ops.description"></a><h2>Description</h2>
<p>
    Applications can use the <a class="link" href="gnome-vfs-2.0-gnome-vfs-file-info-ops.html#gnome-vfs-get-file-info" title="gnome_vfs_get_file_info ()"><code class="function">gnome_vfs_get_file_info()</code></a> family of operations to
    retrieve file information, as this operation can be quite costly in
    terms of time (specilly when sniffing the MIME type) applications can
    specify which information need at any time, reducing the performance
    impact.
</p>
<p>
    All of these operations use a <a class="link" href="gnome-vfs-2.0-gnome-vfs-file-info.html#GnomeVFSFileInfo" title="GnomeVFSFileInfo"><span class="type">GnomeVFSFileInfo</span></a> data structure that holds
    the file information, there are several methods that can be used to
    manipulate this information. See <a class="link" href="gnome-vfs-2.0-gnome-vfs-file-info.html#GnomeVFSFileInfo" title="GnomeVFSFileInfo"><span class="type">GnomeVFSFileInfo</span></a> for more information.
</p>
</div>
<div class="refsect1">
<a name="gnome-vfs-2.0-gnome-vfs-file-info-ops.functions_details"></a><h2>Functions</h2>
<div class="refsect2">
<a name="gnome-vfs-get-file-info"></a><h3>gnome_vfs_get_file_info ()</h3>
<pre class="programlisting"><a class="link" href="gnome-vfs-2.0-gnome-vfs-result.html#GnomeVFSResult" title="enum GnomeVFSResult"><span class="returnvalue">GnomeVFSResult</span></a>
gnome_vfs_get_file_info (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *text_uri</code></em>,
                         <em class="parameter"><code><a class="link" href="gnome-vfs-2.0-gnome-vfs-file-info.html#GnomeVFSFileInfo" title="GnomeVFSFileInfo"><span class="type">GnomeVFSFileInfo</span></a> *info</code></em>,
                         <em class="parameter"><code><a class="link" href="gnome-vfs-2.0-gnome-vfs-file-info.html#GnomeVFSFileInfoOptions" title="enum GnomeVFSFileInfoOptions"><span class="type">GnomeVFSFileInfoOptions</span></a> options</code></em>);</pre>
<p>Retrieve information about <em class="parameter"><code>text_uri</code></em>
.  The information will be stored in
<em class="parameter"><code>info</code></em>
.</p>
<div class="refsect3">
<a name="gnome-vfs-get-file-info.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>text_uri</p></td>
<td class="parameter_description"><p>uri of the file for which information will be retrieved.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>info</p></td>
<td class="parameter_description"><p>pointer to a <a class="link" href="gnome-vfs-2.0-gnome-vfs-file-info.html#GnomeVFSFileInfo" title="GnomeVFSFileInfo"><span class="type">GnomeVFSFileInfo</span></a> object that will hold the information
for the file on return.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>options</p></td>
<td class="parameter_description"><p>options for retrieving file information.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gnome-vfs-get-file-info.returns"></a><h4>Returns</h4>
<p> an integer representing the result of the operation.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gnome-vfs-get-file-info-uri"></a><h3>gnome_vfs_get_file_info_uri ()</h3>
<pre class="programlisting"><a class="link" href="gnome-vfs-2.0-gnome-vfs-result.html#GnomeVFSResult" title="enum GnomeVFSResult"><span class="returnvalue">GnomeVFSResult</span></a>
gnome_vfs_get_file_info_uri (<em class="parameter"><code><a class="link" href="gnome-vfs-2.0-gnome-vfs-uri.html#GnomeVFSURI" title="GnomeVFSURI"><span class="type">GnomeVFSURI</span></a> *uri</code></em>,
                             <em class="parameter"><code><a class="link" href="gnome-vfs-2.0-gnome-vfs-file-info.html#GnomeVFSFileInfo" title="GnomeVFSFileInfo"><span class="type">GnomeVFSFileInfo</span></a> *info</code></em>,
                             <em class="parameter"><code><a class="link" href="gnome-vfs-2.0-gnome-vfs-file-info.html#GnomeVFSFileInfoOptions" title="enum GnomeVFSFileInfoOptions"><span class="type">GnomeVFSFileInfoOptions</span></a> options</code></em>);</pre>
<p>Retrieve information about <em class="parameter"><code>text_uri</code></em>
.  The information will be stored in
<em class="parameter"><code>info</code></em>
.</p>
<div class="refsect3">
<a name="gnome-vfs-get-file-info-uri.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>uri</p></td>
<td class="parameter_description"><p>uri of the file for which information will be retrieved.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>info</p></td>
<td class="parameter_description"><p>pointer to a <a class="link" href="gnome-vfs-2.0-gnome-vfs-file-info.html#GnomeVFSFileInfo" title="GnomeVFSFileInfo"><span class="type">GnomeVFSFileInfo</span></a> object that will hold the information
for the file on return.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>options</p></td>
<td class="parameter_description"><p>options for retrieving file information.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gnome-vfs-get-file-info-uri.returns"></a><h4>Returns</h4>
<p> an integer representing the result of the operation.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gnome-vfs-get-file-info-from-handle"></a><h3>gnome_vfs_get_file_info_from_handle ()</h3>
<pre class="programlisting"><a class="link" href="gnome-vfs-2.0-gnome-vfs-result.html#GnomeVFSResult" title="enum GnomeVFSResult"><span class="returnvalue">GnomeVFSResult</span></a>
gnome_vfs_get_file_info_from_handle (<em class="parameter"><code><span class="type">GnomeVFSHandle</span> *handle</code></em>,
                                     <em class="parameter"><code><a class="link" href="gnome-vfs-2.0-gnome-vfs-file-info.html#GnomeVFSFileInfo" title="GnomeVFSFileInfo"><span class="type">GnomeVFSFileInfo</span></a> *info</code></em>,
                                     <em class="parameter"><code><a class="link" href="gnome-vfs-2.0-gnome-vfs-file-info.html#GnomeVFSFileInfoOptions" title="enum GnomeVFSFileInfoOptions"><span class="type">GnomeVFSFileInfoOptions</span></a> options</code></em>);</pre>
<p>Retrieve information about an open file.  The information will be stored in
<em class="parameter"><code>info</code></em>
.</p>
<div class="refsect3">
<a name="gnome-vfs-get-file-info-from-handle.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>handle</p></td>
<td class="parameter_description"><p>handle of the file for which information must be retrieved.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>info</p></td>
<td class="parameter_description"><p>pointer to a <a class="link" href="gnome-vfs-2.0-gnome-vfs-file-info.html#GnomeVFSFileInfo" title="GnomeVFSFileInfo"><span class="type">GnomeVFSFileInfo</span></a> object that will hold the information
for the file on return.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>options</p></td>
<td class="parameter_description"><p>options for retrieving file information.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gnome-vfs-get-file-info-from-handle.returns"></a><h4>Returns</h4>
<p> an integer representing the result of the operation.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gnome-vfs-set-file-info-uri"></a><h3>gnome_vfs_set_file_info_uri ()</h3>
<pre class="programlisting"><a class="link" href="gnome-vfs-2.0-gnome-vfs-result.html#GnomeVFSResult" title="enum GnomeVFSResult"><span class="returnvalue">GnomeVFSResult</span></a>
gnome_vfs_set_file_info_uri (<em class="parameter"><code><a class="link" href="gnome-vfs-2.0-gnome-vfs-uri.html#GnomeVFSURI" title="GnomeVFSURI"><span class="type">GnomeVFSURI</span></a> *uri</code></em>,
                             <em class="parameter"><code><a class="link" href="gnome-vfs-2.0-gnome-vfs-file-info.html#GnomeVFSFileInfo" title="GnomeVFSFileInfo"><span class="type">GnomeVFSFileInfo</span></a> *info</code></em>,
                             <em class="parameter"><code><a class="link" href="gnome-vfs-2.0-gnome-vfs-file-info.html#GnomeVFSSetFileInfoMask" title="enum GnomeVFSSetFileInfoMask"><span class="type">GnomeVFSSetFileInfoMask</span></a> mask</code></em>);</pre>
<p>Set file information for <em class="parameter"><code>uri</code></em>
; only the information for which the
corresponding bit in <em class="parameter"><code>mask</code></em>
 is set is actually modified.</p>
<div class="note">
<em class="parameter"><code>info</code></em>'s <code class="literal">valid_fields</code> is not required to contain the
<a class="link" href="gnome-vfs-2.0-gnome-vfs-file-info.html#GnomeVFSFileInfoFields" title="enum GnomeVFSFileInfoFields"><span class="type">GnomeVFSFileInfoFields</span></a> corresponding to the specified 
<a class="link" href="gnome-vfs-2.0-gnome-vfs-file-info.html#GnomeVFSSetFileInfoMask" title="enum GnomeVFSSetFileInfoMask"><span class="type">GnomeVFSSetFileInfoMask</span></a> fields of <em class="parameter"><code>mask</code></em>. It
is assumed that the <em class="parameter"><code>info</code></em> fields referenced by <em class="parameter"><code>mask</code></em>
are valid.
</div>
<div class="refsect3">
<a name="gnome-vfs-set-file-info-uri.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>uri</p></td>
<td class="parameter_description"><p>a uri.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>info</p></td>
<td class="parameter_description"><p>information that must be set for the file.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>mask</p></td>
<td class="parameter_description"><p>bit mask representing which fields of <em class="parameter"><code>info</code></em>
need to be set.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gnome-vfs-set-file-info-uri.returns"></a><h4>Returns</h4>
<p> an integer representing the result of the operation.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gnome-vfs-set-file-info"></a><h3>gnome_vfs_set_file_info ()</h3>
<pre class="programlisting"><a class="link" href="gnome-vfs-2.0-gnome-vfs-result.html#GnomeVFSResult" title="enum GnomeVFSResult"><span class="returnvalue">GnomeVFSResult</span></a>
gnome_vfs_set_file_info (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *text_uri</code></em>,
                         <em class="parameter"><code><a class="link" href="gnome-vfs-2.0-gnome-vfs-file-info.html#GnomeVFSFileInfo" title="GnomeVFSFileInfo"><span class="type">GnomeVFSFileInfo</span></a> *info</code></em>,
                         <em class="parameter"><code><a class="link" href="gnome-vfs-2.0-gnome-vfs-file-info.html#GnomeVFSSetFileInfoMask" title="enum GnomeVFSSetFileInfoMask"><span class="type">GnomeVFSSetFileInfoMask</span></a> mask</code></em>);</pre>
<p>Set file information for <em class="parameter"><code>uri</code></em>
; only the information for which the
corresponding bit in <em class="parameter"><code>mask</code></em>
 is set is actually modified.</p>
<div class="note">
<em class="parameter"><code>info</code></em>'s <code class="literal">valid_fields</code> is not required to contain the
<a class="link" href="gnome-vfs-2.0-gnome-vfs-file-info.html#GnomeVFSFileInfoFields" title="enum GnomeVFSFileInfoFields"><span class="type">GnomeVFSFileInfoFields</span></a> corresponding to the specified 
<a class="link" href="gnome-vfs-2.0-gnome-vfs-file-info.html#GnomeVFSSetFileInfoMask" title="enum GnomeVFSSetFileInfoMask"><span class="type">GnomeVFSSetFileInfoMask</span></a> fields of <em class="parameter"><code>mask</code></em>. It
is assumed that the <em class="parameter"><code>info</code></em> fields referenced by <em class="parameter"><code>mask</code></em>
are valid.
</div>
<div class="refsect3">
<a name="gnome-vfs-set-file-info.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>text_uri</p></td>
<td class="parameter_description"><p>string representing the file location.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>info</p></td>
<td class="parameter_description"><p>information that must be set for the file.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>mask</p></td>
<td class="parameter_description"><p>bit mask representing which fields of <em class="parameter"><code>info</code></em>
need to be set.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gnome-vfs-set-file-info.returns"></a><h4>Returns</h4>
<p> an integer representing the result of the operation.</p>
</div>
</div>
</div>
<div class="refsect1">
<a name="gnome-vfs-2.0-gnome-vfs-file-info-ops.other_details"></a><h2>Types and Values</h2>
</div>
<div class="refsect1">
<a name="gnome-vfs-2.0-gnome-vfs-file-info-ops.see-also"></a><h2>See Also</h2>
<p>
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody><tr>
<td><p><span class="term"><a class="link" href="gnome-vfs-2.0-gnome-vfs-file-info.html#GnomeVFSFileInfo" title="GnomeVFSFileInfo"><span class="type">GnomeVFSFileInfo</span></a></span></p></td>
<td></td>
</tr></tbody>
</table></div>
<p>
</p>
</div>
</div>
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