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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>FmThumbnailer: Libfm Reference Manual</title>
<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
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<table class="navigation" id="top" width="100%" summary="Navigation header" cellpadding="2" cellspacing="5"><tr valign="middle">
<td width="100%" align="left" class="shortcuts">
<a href="#" class="shortcut">Top</a><span id="nav_description">  <span class="dim">|</span> 
                  <a href="#libfm-FmThumbnailer.description" class="shortcut">Description</a></span>
</td>
<td><a accesskey="h" href="index.html"><img src="home.png" width="16" height="16" border="0" alt="Home"></a></td>
<td><a accesskey="u" href="libfm-core.html"><img src="up.png" width="16" height="16" border="0" alt="Up"></a></td>
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</tr></table>
<div class="refentry">
<a name="libfm-FmThumbnailer"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="libfm-FmThumbnailer.top_of_page"></a>FmThumbnailer</span></h2>
<p>FmThumbnailer — External thumbnailers handling.</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="libfm-FmThumbnailer.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="define_keyword">#define</td>
<td class="function_name">
<a class="link" href="libfm-FmThumbnailer.html#FM-THUMBNAILER:CAPS" title="FM_THUMBNAILER()">FM_THUMBNAILER</a><span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="libfm-FmThumbnailer.html#fm-thumbnailer-check-update" title="fm_thumbnailer_check_update ()">fm_thumbnailer_check_update</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">char</span> *
</td>
<td class="function_name">
<a class="link" href="libfm-FmThumbnailer.html#fm-thumbnailer-command-for-uri" title="fm_thumbnailer_command_for_uri ()">fm_thumbnailer_command_for_uri</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="libfm-FmThumbnailer.html#fm-thumbnailer-free" title="fm_thumbnailer_free ()">fm_thumbnailer_free</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="libfm-FmThumbnailer.html#fm-thumbnailer-launch-for-uri" title="fm_thumbnailer_launch_for_uri ()">fm_thumbnailer_launch_for_uri</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-The-Main-Event-Loop.html#GPid"><span class="returnvalue">GPid</span></a>
</td>
<td class="function_name">
<a class="link" href="libfm-FmThumbnailer.html#fm-thumbnailer-launch-for-uri-async" title="fm_thumbnailer_launch_for_uri_async ()">fm_thumbnailer_launch_for_uri_async</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="libfm-FmThumbnailer.html#FmThumbnailer" title="FmThumbnailer"><span class="returnvalue">FmThumbnailer</span></a> *
</td>
<td class="function_name">
<a class="link" href="libfm-FmThumbnailer.html#fm-thumbnailer-new-from-keyfile" title="fm_thumbnailer_new_from_keyfile ()">fm_thumbnailer_new_from_keyfile</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="libfm-FmThumbnailer.html#FmThumbnailer" title="FmThumbnailer"><span class="returnvalue">FmThumbnailer</span></a> *
</td>
<td class="function_name">
<a class="link" href="libfm-FmThumbnailer.html#fm-thumbnailer-ref" title="fm_thumbnailer_ref ()">fm_thumbnailer_ref</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="libfm-FmThumbnailer.html#fm-thumbnailer-unref" title="fm_thumbnailer_unref ()">fm_thumbnailer_unref</a> <span class="c_punctuation">()</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="libfm-FmThumbnailer.other"></a><h2>Types and Values</h2>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="name">
<col class="description">
</colgroup>
<tbody><tr>
<td class="datatype_keyword"> </td>
<td class="function_name"><a class="link" href="libfm-FmThumbnailer.html#FmThumbnailer" title="FmThumbnailer">FmThumbnailer</a></td>
</tr></tbody>
</table></div>
</div>
<div class="refsect1">
<a name="libfm-FmThumbnailer.description"></a><h2>Description</h2>
<p><em class="parameter"><code>include</code></em>
: libfm/fm.h</p>
</div>
<div class="refsect1">
<a name="libfm-FmThumbnailer.functions_details"></a><h2>Functions</h2>
<div class="refsect2">
<a name="FM-THUMBNAILER:CAPS"></a><h3>FM_THUMBNAILER()</h3>
<pre class="programlisting">#define FM_THUMBNAILER(p) ((FmThumbnailer*)p)
</pre>
</div>
<hr>
<div class="refsect2">
<a name="fm-thumbnailer-check-update"></a><h3>fm_thumbnailer_check_update ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
fm_thumbnailer_check_update ();</pre>
<p>Checks new thumbnailers and reloads if needed.</p>
<p class="since">Since: 1.0.0</p>
</div>
<hr>
<div class="refsect2">
<a name="fm-thumbnailer-command-for-uri"></a><h3>fm_thumbnailer_command_for_uri ()</h3>
<pre class="programlisting"><span class="returnvalue">char</span> *
fm_thumbnailer_command_for_uri (<em class="parameter"><code><a class="link" href="libfm-FmThumbnailer.html#FmThumbnailer" title="FmThumbnailer"><span class="type">FmThumbnailer</span></a> *thumbnailer</code></em>,
                                <em class="parameter"><code>const <span class="type">char</span> *uri</code></em>,
                                <em class="parameter"><code>const <span class="type">char</span> *output_file</code></em>,
                                <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> size</code></em>);</pre>
<p>Tries to generate command line that can be used to generate a thumbnail
for given <em class="parameter"><code>uri</code></em>
. Returned string is allocated and should be freed with
<a href="/usr/share/gtk-doc/html/glib/glib-Memory-Allocation.html#g-free"><code class="function">g_free()</code></a> after usage.</p>
<div class="refsect3">
<a name="fm-thumbnailer-command-for-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>thumbnailer</p></td>
<td class="parameter_description"><p>thumbnailer descriptor</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>uri</p></td>
<td class="parameter_description"><p>a file to create thumbnail for</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>output_file</p></td>
<td class="parameter_description"><p>the target file name</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>size</p></td>
<td class="parameter_description"><p>size of thumbnail to generate</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="fm-thumbnailer-command-for-uri.returns"></a><h4>Returns</h4>
<p> a newly allocated string or <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>. </p>
<p><span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span></p>
</div>
<p class="since">Since: 1.2.0</p>
</div>
<hr>
<div class="refsect2">
<a name="fm-thumbnailer-free"></a><h3>fm_thumbnailer_free ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
fm_thumbnailer_free (<em class="parameter"><code><a class="link" href="libfm-FmThumbnailer.html#FmThumbnailer" title="FmThumbnailer"><span class="type">FmThumbnailer</span></a> *thumbnailer</code></em>);</pre>
<div class="warning">
<p><code class="literal">fm_thumbnailer_free</code> has been deprecated since version 1.2.0 and should not be used in newly-written code.</p>
<p>Use <a class="link" href="libfm-FmThumbnailer.html#fm-thumbnailer-unref" title="fm_thumbnailer_unref ()"><code class="function">fm_thumbnailer_unref()</code></a> instead.</p>
</div>
<p>Frees <em class="parameter"><code>thumbnailer</code></em>
 object.</p>
<div class="refsect3">
<a name="fm-thumbnailer-free.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>thumbnailer</p></td>
<td class="parameter_description"><p>thumbnailer descriptor</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<p class="since">Since: 1.0.0</p>
</div>
<hr>
<div class="refsect2">
<a name="fm-thumbnailer-launch-for-uri"></a><h3>fm_thumbnailer_launch_for_uri ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
fm_thumbnailer_launch_for_uri (<em class="parameter"><code><a class="link" href="libfm-FmThumbnailer.html#FmThumbnailer" title="FmThumbnailer"><span class="type">FmThumbnailer</span></a> *thumbnailer</code></em>,
                               <em class="parameter"><code>const <span class="type">char</span> *uri</code></em>,
                               <em class="parameter"><code>const <span class="type">char</span> *output_file</code></em>,
                               <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> size</code></em>);</pre>
<div class="warning">
<p><code class="literal">fm_thumbnailer_launch_for_uri</code> has been deprecated since version 1.2.0 and should not be used in newly-written code.</p>
<p>Use <a class="link" href="libfm-FmThumbnailer.html#fm-thumbnailer-launch-for-uri-async" title="fm_thumbnailer_launch_for_uri_async ()"><code class="function">fm_thumbnailer_launch_for_uri_async()</code></a> instead.</p>
</div>
<p>Tries to generate new thumbnail for given <em class="parameter"><code>uri</code></em>
.</p>
<div class="refsect3">
<a name="fm-thumbnailer-launch-for-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>thumbnailer</p></td>
<td class="parameter_description"><p>thumbnailer descriptor</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>uri</p></td>
<td class="parameter_description"><p>a file to create thumbnail for</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>output_file</p></td>
<td class="parameter_description"><p>the target file name</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>size</p></td>
<td class="parameter_description"><p>size of thumbnail to generate</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="fm-thumbnailer-launch-for-uri.returns"></a><h4>Returns</h4>
<p> <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> in case of success.</p>
</div>
<p class="since">Since: 1.0.0</p>
</div>
<hr>
<div class="refsect2">
<a name="fm-thumbnailer-launch-for-uri-async"></a><h3>fm_thumbnailer_launch_for_uri_async ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-The-Main-Event-Loop.html#GPid"><span class="returnvalue">GPid</span></a>
fm_thumbnailer_launch_for_uri_async (<em class="parameter"><code><a class="link" href="libfm-FmThumbnailer.html#FmThumbnailer" title="FmThumbnailer"><span class="type">FmThumbnailer</span></a> *thumbnailer</code></em>,
                                     <em class="parameter"><code>const <span class="type">char</span> *uri</code></em>,
                                     <em class="parameter"><code>const <span class="type">char</span> *output_file</code></em>,
                                     <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> size</code></em>,
                                     <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> **error</code></em>);</pre>
<p>Tries to spawn thumbnailer to generate new thumbnail for given <em class="parameter"><code>uri</code></em>
.</p>
<div class="refsect3">
<a name="fm-thumbnailer-launch-for-uri-async.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>thumbnailer</p></td>
<td class="parameter_description"><p>thumbnailer descriptor</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>uri</p></td>
<td class="parameter_description"><p>a file to create thumbnail for</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>output_file</p></td>
<td class="parameter_description"><p>the target file name</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>size</p></td>
<td class="parameter_description"><p>size of thumbnail to generate</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>error</p></td>
<td class="parameter_description"><p> location to save error. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>][<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="fm-thumbnailer-launch-for-uri-async.returns"></a><h4>Returns</h4>
<p> thumbnailer process ID or -1 in case of failure.</p>
</div>
<p class="since">Since: 1.2.0</p>
</div>
<hr>
<div class="refsect2">
<a name="fm-thumbnailer-new-from-keyfile"></a><h3>fm_thumbnailer_new_from_keyfile ()</h3>
<pre class="programlisting"><a class="link" href="libfm-FmThumbnailer.html#FmThumbnailer" title="FmThumbnailer"><span class="returnvalue">FmThumbnailer</span></a> *
fm_thumbnailer_new_from_keyfile (<em class="parameter"><code>const <span class="type">char</span> *id</code></em>,
                                 <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Key-value-file-parser.html#GKeyFile"><span class="type">GKeyFile</span></a> *kf</code></em>);</pre>
<p>Creates new <em class="parameter"><code>thumbnailer</code></em>
 object.</p>
<div class="refsect3">
<a name="fm-thumbnailer-new-from-keyfile.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>id</p></td>
<td class="parameter_description"><p>desktop entry Id</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>kf</p></td>
<td class="parameter_description"><p>content of <em class="parameter"><code>id</code></em>
</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="fm-thumbnailer-new-from-keyfile.returns"></a><h4>Returns</h4>
<p> a new <a class="link" href="libfm-FmThumbnailer.html#FmThumbnailer" title="FmThumbnailer"><span class="type">FmThumbnailer</span></a> or <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> in case of error. </p>
<p><span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span></p>
</div>
<p class="since">Since: 1.0.0</p>
</div>
<hr>
<div class="refsect2">
<a name="fm-thumbnailer-ref"></a><h3>fm_thumbnailer_ref ()</h3>
<pre class="programlisting"><a class="link" href="libfm-FmThumbnailer.html#FmThumbnailer" title="FmThumbnailer"><span class="returnvalue">FmThumbnailer</span></a> *
fm_thumbnailer_ref (<em class="parameter"><code><a class="link" href="libfm-FmThumbnailer.html#FmThumbnailer" title="FmThumbnailer"><span class="type">FmThumbnailer</span></a> *thumbnailer</code></em>);</pre>
<p>Increases reference count for <em class="parameter"><code>thumbnailer</code></em>
 object.</p>
<div class="refsect3">
<a name="fm-thumbnailer-ref.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>thumbnailer</p></td>
<td class="parameter_description"><p>thumbnailer descriptor</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="fm-thumbnailer-ref.returns"></a><h4>Returns</h4>
<p> <em class="parameter"><code>thumbnailer</code></em>
.</p>
</div>
<p class="since">Since: 1.2.0</p>
</div>
<hr>
<div class="refsect2">
<a name="fm-thumbnailer-unref"></a><h3>fm_thumbnailer_unref ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
fm_thumbnailer_unref (<em class="parameter"><code><a class="link" href="libfm-FmThumbnailer.html#FmThumbnailer" title="FmThumbnailer"><span class="type">FmThumbnailer</span></a> *thumbnailer</code></em>);</pre>
<p>Decreases reference count for <em class="parameter"><code>thumbnailer</code></em>
 object. When last reference
is dropped, allocated resources will be freed and <em class="parameter"><code>thumbnailer</code></em>
 becomes
invalid.</p>
<div class="refsect3">
<a name="fm-thumbnailer-unref.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>thumbnailer</p></td>
<td class="parameter_description"><p>thumbnailer descriptor</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<p class="since">Since: 1.2.0</p>
</div>
</div>
<div class="refsect1">
<a name="libfm-FmThumbnailer.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="FmThumbnailer"></a><h3>FmThumbnailer</h3>
<pre class="programlisting">typedef struct _FmThumbnailer FmThumbnailer;</pre>
</div>
</div>
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