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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<title>ShellAppSystem: Shell Reference Manual</title>
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<a href="#" class="shortcut">Top</a><span id="nav_description">  <span class="dim">|</span> 
                  <a href="#ShellAppSystem.description" class="shortcut">Description</a></span><span id="nav_hierarchy">  <span class="dim">|</span> 
                  <a href="#ShellAppSystem.object-hierarchy" class="shortcut">Object Hierarchy</a></span><span id="nav_signals">  <span class="dim">|</span> 
                  <a href="#ShellAppSystem.signals" class="shortcut">Signals</a></span>
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<div class="refentry">
<a name="ShellAppSystem"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="ShellAppSystem.top_of_page"></a>ShellAppSystem</span></h2>
<p>ShellAppSystem</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="ShellAppSystem.functions"></a><h2>Functions</h2>
<div class="informaltable"><table 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="ShellAppSystem.html" title="ShellAppSystem"><span class="returnvalue">ShellAppSystem</span></a> *
</td>
<td class="function_name">
<a class="link" href="ShellAppSystem.html#shell-app-system-get-default" title="shell_app_system_get_default ()">shell_app_system_get_default</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="ShellApp.html" title="ShellApp"><span class="returnvalue">ShellApp</span></a> *
</td>
<td class="function_name">
<a class="link" href="ShellAppSystem.html#shell-app-system-lookup-app" title="shell_app_system_lookup_app ()">shell_app_system_lookup_app</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="ShellApp.html" title="ShellApp"><span class="returnvalue">ShellApp</span></a> *
</td>
<td class="function_name">
<a class="link" href="ShellAppSystem.html#shell-app-system-lookup-heuristic-basename" title="shell_app_system_lookup_heuristic_basename ()">shell_app_system_lookup_heuristic_basename</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="ShellApp.html" title="ShellApp"><span class="returnvalue">ShellApp</span></a> *
</td>
<td class="function_name">
<a class="link" href="ShellAppSystem.html#shell-app-system-lookup-startup-wmclass" title="shell_app_system_lookup_startup_wmclass ()">shell_app_system_lookup_startup_wmclass</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="ShellApp.html" title="ShellApp"><span class="returnvalue">ShellApp</span></a> *
</td>
<td class="function_name">
<a class="link" href="ShellAppSystem.html#shell-app-system-lookup-desktop-wmclass" title="shell_app_system_lookup_desktop_wmclass ()">shell_app_system_lookup_desktop_wmclass</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="https://developer.gnome.org/glib/unstable/glib-Singly-Linked-Lists.html#GSList"><span class="returnvalue">GSList</span></a> *
</td>
<td class="function_name">
<a class="link" href="ShellAppSystem.html#shell-app-system-get-running" title="shell_app_system_get_running ()">shell_app_system_get_running</a> <span class="c_punctuation">()</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="ShellAppSystem.signals"></a><h2>Signals</h2>
<div class="informaltable"><table border="0">
<colgroup>
<col width="150px" class="signals_return">
<col width="300px" class="signals_name">
<col width="200px" class="signals_flags">
</colgroup>
<tbody>
<tr>
<td class="signal_type"><span class="returnvalue">void</span></td>
<td class="signal_name"><a class="link" href="ShellAppSystem.html#ShellAppSystem-app-state-changed" title="The “app-state-changed” signal">app-state-changed</a></td>
<td class="signal_flags"><a href="https://developer.gnome.org/gobject/unstable/gobject-Signals.html#G-SIGNAL-RUN-LAST:CAPS">Run Last</a></td>
</tr>
<tr>
<td class="signal_type"><span class="returnvalue">void</span></td>
<td class="signal_name"><a class="link" href="ShellAppSystem.html#ShellAppSystem-installed-changed" title="The “installed-changed” signal">installed-changed</a></td>
<td class="signal_flags"><a href="https://developer.gnome.org/gobject/unstable/gobject-Signals.html#G-SIGNAL-RUN-LAST:CAPS">Run Last</a></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="ShellAppSystem.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="screen">    <a href="https://developer.gnome.org/gobject/unstable/gobject-The-Base-Object-Type.html#GObject">GObject</a>
    <span class="lineart">╰──</span> ShellAppSystem
</pre>
</div>
<div class="refsect1">
<a name="ShellAppSystem.description"></a><h2>Description</h2>
</div>
<div class="refsect1">
<a name="ShellAppSystem.functions_details"></a><h2>Functions</h2>
<div class="refsect2">
<a name="shell-app-system-get-default"></a><h3>shell_app_system_get_default ()</h3>
<pre class="programlisting"><a class="link" href="ShellAppSystem.html" title="ShellAppSystem"><span class="returnvalue">ShellAppSystem</span></a> *
shell_app_system_get_default (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<div class="refsect3">
<a name="id-1.4.2.7.2.4"></a><h4>Returns</h4>
<p> The global <a class="link" href="ShellAppSystem.html" title="ShellAppSystem"><span class="type">ShellAppSystem</span></a> singleton. </p>
<p><span class="annotation">[<acronym title="Don't free data after the code is done."><span class="acronym">transfer none</span></acronym>]</span></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="shell-app-system-lookup-app"></a><h3>shell_app_system_lookup_app ()</h3>
<pre class="programlisting"><a class="link" href="ShellApp.html" title="ShellApp"><span class="returnvalue">ShellApp</span></a> *
shell_app_system_lookup_app (<em class="parameter"><code><a class="link" href="ShellAppSystem.html" title="ShellAppSystem"><span class="type">ShellAppSystem</span></a> *system</code></em>,
                             <em class="parameter"><code>const <span class="type">char</span> *id</code></em>);</pre>
<p>Find a <a class="link" href="ShellApp.html" title="ShellApp"><span class="type">ShellApp</span></a> corresponding to an id.</p>
<div class="refsect3">
<a name="id-1.4.2.7.3.5"></a><h4>Returns</h4>
<p> The <a class="link" href="ShellApp.html" title="ShellApp"><span class="type">ShellApp</span></a> for id, or <a href="https://developer.gnome.org/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> if none. </p>
<p><span class="annotation">[<acronym title="Don't free data after the code is done."><span class="acronym">transfer none</span></acronym>]</span></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="shell-app-system-lookup-heuristic-basename"></a><h3>shell_app_system_lookup_heuristic_basename ()</h3>
<pre class="programlisting"><a class="link" href="ShellApp.html" title="ShellApp"><span class="returnvalue">ShellApp</span></a> *
shell_app_system_lookup_heuristic_basename
                               (<em class="parameter"><code><a class="link" href="ShellAppSystem.html" title="ShellAppSystem"><span class="type">ShellAppSystem</span></a> *system</code></em>,
                                <em class="parameter"><code>const <span class="type">char</span> *id</code></em>);</pre>
<p>Find a valid application corresponding to a given
heuristically determined application identifier
string, or <a href="https://developer.gnome.org/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> if none.</p>
<div class="refsect3">
<a name="id-1.4.2.7.4.5"></a><h4>Parameters</h4>
<div class="informaltable"><table 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>system</p></td>
<td class="parameter_description"><p>a <a class="link" href="ShellAppSystem.html" title="ShellAppSystem"><span class="type">ShellAppSystem</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>id</p></td>
<td class="parameter_description"><p>Probable application identifier</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.4.2.7.4.6"></a><h4>Returns</h4>
<p> A <a class="link" href="ShellApp.html" title="ShellApp"><span class="type">ShellApp</span></a> for <em class="parameter"><code>name</code></em>
. </p>
<p><span class="annotation">[<acronym title="Don't free data after the code is done."><span class="acronym">transfer none</span></acronym>]</span></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="shell-app-system-lookup-startup-wmclass"></a><h3>shell_app_system_lookup_startup_wmclass ()</h3>
<pre class="programlisting"><a class="link" href="ShellApp.html" title="ShellApp"><span class="returnvalue">ShellApp</span></a> *
shell_app_system_lookup_startup_wmclass
                               (<em class="parameter"><code><a class="link" href="ShellAppSystem.html" title="ShellAppSystem"><span class="type">ShellAppSystem</span></a> *system</code></em>,
                                <em class="parameter"><code>const <span class="type">char</span> *wmclass</code></em>);</pre>
<p>Find a valid application whose .desktop file contains a
StartupWMClass entry matching <em class="parameter"><code>wmclass</code></em>
.</p>
<div class="refsect3">
<a name="id-1.4.2.7.5.5"></a><h4>Parameters</h4>
<div class="informaltable"><table 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>system</p></td>
<td class="parameter_description"><p>a <a class="link" href="ShellAppSystem.html" title="ShellAppSystem"><span class="type">ShellAppSystem</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>wmclass</p></td>
<td class="parameter_description"><p> A WM_CLASS value. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL may be passed as the value in, out, in-out; or as a return value."><span class="acronym">nullable</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.4.2.7.5.6"></a><h4>Returns</h4>
<p> A <a class="link" href="ShellApp.html" title="ShellApp"><span class="type">ShellApp</span></a> for <em class="parameter"><code>wmclass</code></em>
. </p>
<p><span class="annotation">[<acronym title="Don't free data after the code is done."><span class="acronym">transfer none</span></acronym>]</span></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="shell-app-system-lookup-desktop-wmclass"></a><h3>shell_app_system_lookup_desktop_wmclass ()</h3>
<pre class="programlisting"><a class="link" href="ShellApp.html" title="ShellApp"><span class="returnvalue">ShellApp</span></a> *
shell_app_system_lookup_desktop_wmclass
                               (<em class="parameter"><code><a class="link" href="ShellAppSystem.html" title="ShellAppSystem"><span class="type">ShellAppSystem</span></a> *system</code></em>,
                                <em class="parameter"><code>const <span class="type">char</span> *wmclass</code></em>);</pre>
<p>Find a valid application whose .desktop file, without the extension
and properly canonicalized, matches <em class="parameter"><code>wmclass</code></em>
.</p>
<div class="refsect3">
<a name="id-1.4.2.7.6.5"></a><h4>Parameters</h4>
<div class="informaltable"><table 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>system</p></td>
<td class="parameter_description"><p>a <a class="link" href="ShellAppSystem.html" title="ShellAppSystem"><span class="type">ShellAppSystem</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>wmclass</p></td>
<td class="parameter_description"><p> A WM_CLASS value. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL may be passed as the value in, out, in-out; or as a return value."><span class="acronym">nullable</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.4.2.7.6.6"></a><h4>Returns</h4>
<p> A <a class="link" href="ShellApp.html" title="ShellApp"><span class="type">ShellApp</span></a> for <em class="parameter"><code>wmclass</code></em>
. </p>
<p><span class="annotation">[<acronym title="Don't free data after the code is done."><span class="acronym">transfer none</span></acronym>]</span></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="shell-app-system-get-running"></a><h3>shell_app_system_get_running ()</h3>
<pre class="programlisting"><a href="https://developer.gnome.org/glib/unstable/glib-Singly-Linked-Lists.html#GSList"><span class="returnvalue">GSList</span></a> *
shell_app_system_get_running (<em class="parameter"><code><a class="link" href="ShellAppSystem.html" title="ShellAppSystem"><span class="type">ShellAppSystem</span></a> *self</code></em>);</pre>
<p>Returns the set of applications which currently have at least one
open window in the given context.  The returned list will be sorted
by <a class="link" href="ShellApp.html#shell-app-compare" title="shell_app_compare ()"><code class="function">shell_app_compare()</code></a>.</p>
<div class="refsect3">
<a name="id-1.4.2.7.7.5"></a><h4>Parameters</h4>
<div class="informaltable"><table 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>self</p></td>
<td class="parameter_description"><p>A <a class="link" href="ShellAppSystem.html" title="ShellAppSystem"><span class="type">ShellAppSystem</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.4.2.7.7.6"></a><h4>Returns</h4>
<p> Active applications. </p>
<p><span class="annotation">[<acronym title="Generics and defining elements of containers and arrays."><span class="acronym">element-type</span></acronym> ShellApp][<acronym title="Free data container after the code is done."><span class="acronym">transfer container</span></acronym>]</span></p>
</div>
</div>
</div>
<div class="refsect1">
<a name="ShellAppSystem.other_details"></a><h2>Types and Values</h2>
</div>
<div class="refsect1">
<a name="ShellAppSystem.signal-details"></a><h2>Signal Details</h2>
<div class="refsect2">
<a name="ShellAppSystem-app-state-changed"></a><h3>The <code class="literal">“app-state-changed”</code> signal</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
user_function (<a class="link" href="ShellAppSystem.html" title="ShellAppSystem"><span class="type">ShellAppSystem</span></a> *shellappsystem,
               <a class="link" href="ShellApp.html" title="ShellApp"><span class="type">ShellApp</span></a>       *arg1,
               <a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a>        user_data)</pre>
<p>Flags: <a href="https://developer.gnome.org/gobject/unstable/gobject-Signals.html#G-SIGNAL-RUN-LAST:CAPS">Run Last</a></p>
</div>
<hr>
<div class="refsect2">
<a name="ShellAppSystem-installed-changed"></a><h3>The <code class="literal">“installed-changed”</code> signal</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
user_function (<a class="link" href="ShellAppSystem.html" title="ShellAppSystem"><span class="type">ShellAppSystem</span></a> *shellappsystem,
               <a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a>        user_data)</pre>
<p>Flags: <a href="https://developer.gnome.org/gobject/unstable/gobject-Signals.html#G-SIGNAL-RUN-LAST:CAPS">Run Last</a></p>
</div>
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