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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<title>Monitoring</title>
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<a href="#libxfce4menu-Monitoring.description" class="shortcut">Description</a>
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<div class="refentry" title="Monitoring">
<a name="libxfce4menu-Monitoring"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="libxfce4menu-Monitoring.top_of_page"></a>Monitoring</span></h2>
<p>Monitoring</p>
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<div class="refsynopsisdiv" title="Synopsis">
<a name="libxfce4menu-Monitoring.synopsis"></a><h2>Synopsis</h2>
<pre class="synopsis">
#include <libxfce4menu/libxfce4menu.h>
<a class="link" href="libxfce4menu-Monitoring.html#XfceMenuMonitorVTable" title="XfceMenuMonitorVTable">XfceMenuMonitorVTable</a>;
<span class="returnvalue">void</span> <a class="link" href="libxfce4menu-Monitoring.html#xfce-menu-monitor-set-vtable" title="xfce_menu_monitor_set_vtable ()">xfce_menu_monitor_set_vtable</a> (<em class="parameter"><code><a class="link" href="libxfce4menu-Monitoring.html#XfceMenuMonitorVTable" title="XfceMenuMonitorVTable"><span class="type">XfceMenuMonitorVTable</span></a> *vtable</code></em>,
<em class="parameter"><code><span class="type">gpointer</span> user_data</code></em>);
</pre>
</div>
<div class="refsect1" title="Description">
<a name="libxfce4menu-Monitoring.description"></a><h2>Description</h2>
<p>
</p>
</div>
<div class="refsect1" title="Details">
<a name="libxfce4menu-Monitoring.details"></a><h2>Details</h2>
<div class="refsect2" title="XfceMenuMonitorVTable">
<a name="XfceMenuMonitorVTable"></a><h3>XfceMenuMonitorVTable</h3>
<pre class="programlisting">typedef struct {
gpointer (*monitor_file) (XfceMenu *menu,
const gchar *filename,
gpointer user_data);
gpointer (*monitor_directory) (XfceMenu *menu,
const gchar *filename,
gpointer user_data);
void (*remove_monitor) (XfceMenu *menu,
gpointer monitor_handle);
} XfceMenuMonitorVTable;
</pre>
<p>
This structure can be used by clients of the libxfce4menu API to
register functions which will be called whenever monitoring a
certain file or directory becomes necessary. This way libxfce4menu
only has to manage the monitor handles and leaves the monitoring
implementations to the client.
</p>
<p>
This mechanism was invented because the two main API clients,
Thunar and xfdesktop are already linked to ThunarVFS which has
monitoring capabilities.
</p>
</div>
<hr>
<div class="refsect2" title="xfce_menu_monitor_set_vtable ()">
<a name="xfce-menu-monitor-set-vtable"></a><h3>xfce_menu_monitor_set_vtable ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> xfce_menu_monitor_set_vtable (<em class="parameter"><code><a class="link" href="libxfce4menu-Monitoring.html#XfceMenuMonitorVTable" title="XfceMenuMonitorVTable"><span class="type">XfceMenuMonitorVTable</span></a> *vtable</code></em>,
<em class="parameter"><code><span class="type">gpointer</span> user_data</code></em>);</pre>
<p>
Sets the functions to be called when monitoring a file or directory
becomes necessary. See <a class="link" href="libxfce4menu-Monitoring.html#XfceMenuMonitorVTable" title="XfceMenuMonitorVTable"><span class="type">XfceMenuMonitorVTable</span></a> for more detailled
information. Be careful with redefining the <a class="link" href="libxfce4menu-Monitoring.html#XfceMenuMonitorVTable" title="XfceMenuMonitorVTable"><span class="type">XfceMenuMonitorVTable</span></a>
(e.g. don't redefine it while there are any <a class="link" href="XfceMenu.html" title="XfceMenu"><span class="type">XfceMenu</span></a>'s around).
</p>
<p>
In order to change the user data, just pass the same
<a class="link" href="libxfce4menu-Monitoring.html#XfceMenuMonitorVTable" title="XfceMenuMonitorVTable"><span class="type">XfceMenuMonitorVTable</span></a> as you did before. Pass NULL to clear the
vtable (e.g. if you want to disable monitoring support).
</p>
<div class="variablelist"><table border="0">
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<td><p><span class="term"><em class="parameter"><code>vtable</code></em> :</span></p></td>
<td>a <a class="link" href="libxfce4menu-Monitoring.html#XfceMenuMonitorVTable" title="XfceMenuMonitorVTable"><span class="type">XfceMenuMonitorVTable</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>user_data</code></em> :</span></p></td>
<td>custom pointer to be passed to the vtable functions.
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