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<div class="refentry" title="Desktop file based GAppInfo">
<a name="gio-Desktop-file-based-GAppInfo"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="gio-Desktop-file-based-GAppInfo.top_of_page"></a>Desktop file based GAppInfo</span></h2>
<p>Desktop file based GAppInfo — Application information from desktop files</p>
</td>
<td valign="top" align="right"></td>
</tr></table></div>
<div class="refsynopsisdiv" title="Synopsis">
<a name="gio-Desktop-file-based-GAppInfo.synopsis"></a><h2>Synopsis</h2>
<a name="GDesktopAppInfo"></a><a name="GDesktopAppInfoLookup"></a><pre class="synopsis">
#include <gio/gdesktopappinfo.h>
<a class="link" href="gio-Desktop-file-based-GAppInfo.html#GDesktopAppInfo-struct" title="GDesktopAppInfo">GDesktopAppInfo</a>;
<a class="link" href="gio-Desktop-file-based-GAppInfo.html#GDesktopAppInfo">GDesktopAppInfo</a> * <a class="link" href="gio-Desktop-file-based-GAppInfo.html#g-desktop-app-info-new-from-filename" title="g_desktop_app_info_new_from_filename ()">g_desktop_app_info_new_from_filename</a>
(const char *filename);
<a class="link" href="gio-Desktop-file-based-GAppInfo.html#GDesktopAppInfo">GDesktopAppInfo</a> * <a class="link" href="gio-Desktop-file-based-GAppInfo.html#g-desktop-app-info-new-from-keyfile" title="g_desktop_app_info_new_from_keyfile ()">g_desktop_app_info_new_from_keyfile</a> (<a
href="http://library.gnome.org/devel/glib/unstable/glib-Key-value-file-parser.html#GKeyFile"
>GKeyFile</a> *key_file);
<a class="link" href="gio-Desktop-file-based-GAppInfo.html#GDesktopAppInfo">GDesktopAppInfo</a> * <a class="link" href="gio-Desktop-file-based-GAppInfo.html#g-desktop-app-info-new" title="g_desktop_app_info_new ()">g_desktop_app_info_new</a> (const char *desktop_id);
<a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"
>gboolean</a> <a class="link" href="gio-Desktop-file-based-GAppInfo.html#g-desktop-app-info-get-is-hidden" title="g_desktop_app_info_get_is_hidden ()">g_desktop_app_info_get_is_hidden</a> (<a class="link" href="gio-Desktop-file-based-GAppInfo.html#GDesktopAppInfo">GDesktopAppInfo</a> *info);
void <a class="link" href="gio-Desktop-file-based-GAppInfo.html#g-desktop-app-info-set-desktop-env" title="g_desktop_app_info_set_desktop_env ()">g_desktop_app_info_set_desktop_env</a> (const char *desktop_env);
<a class="link" href="gio-Desktop-file-based-GAppInfo.html#GDesktopAppInfoLookup-struct" title="GDesktopAppInfoLookup">GDesktopAppInfoLookup</a>;
#define <a class="link" href="gio-Desktop-file-based-GAppInfo.html#G-DESKTOP-APP-INFO-LOOKUP-EXTENSION-POINT-NAME--CAPS" title="G_DESKTOP_APP_INFO_LOOKUP_EXTENSION_POINT_NAME">G_DESKTOP_APP_INFO_LOOKUP_EXTENSION_POINT_NAME</a>
<a class="link" href="GAppInfo.html" title="GAppInfo">GAppInfo</a> * <a class="link" href="gio-Desktop-file-based-GAppInfo.html#g-desktop-app-info-lookup-get-default-for-uri-scheme" title="g_desktop_app_info_lookup_get_default_for_uri_scheme ()">g_desktop_app_info_lookup_get_default_for_uri_scheme</a>
(<a class="link" href="gio-Desktop-file-based-GAppInfo.html#GDesktopAppInfoLookup">GDesktopAppInfoLookup</a> *lookup,
const char *uri_scheme);
</pre>
</div>
<div class="refsect1" title="Object Hierarchy">
<a name="gio-Desktop-file-based-GAppInfo.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="synopsis">
<a
href="http://library.gnome.org/devel/gobject/unstable/gobject-The-Base-Object-Type.html#GObject"
>GObject</a>
+----GDesktopAppInfo
</pre>
<pre class="synopsis">
GInterface
+----GDesktopAppInfoLookup
</pre>
</div>
<div class="refsect1" title="Prerequisites">
<a name="gio-Desktop-file-based-GAppInfo.prerequisites"></a><h2>Prerequisites</h2>
<p>
GDesktopAppInfoLookup requires
<a
href="http://library.gnome.org/devel/gobject/unstable/gobject-The-Base-Object-Type.html#GObject"
>GObject</a>.</p>
</div>
<div class="refsect1" title="Implemented Interfaces">
<a name="gio-Desktop-file-based-GAppInfo.implemented-interfaces"></a><h2>Implemented Interfaces</h2>
<p>
GDesktopAppInfo implements
<a class="link" href="GAppInfo.html" title="GAppInfo">GAppInfo</a>.</p>
</div>
<div class="refsect1" title="Description">
<a name="gio-Desktop-file-based-GAppInfo.description"></a><h2>Description</h2>
<p>
<a class="link" href="gio-Desktop-file-based-GAppInfo.html#GDesktopAppInfo"><span class="type">GDesktopAppInfo</span></a> is an implementation of <a class="link" href="GAppInfo.html" title="GAppInfo"><span class="type">GAppInfo</span></a> based on
desktop files.
</p>
<p>
Note that <code class="filename"><gio/gdesktopappinfo.h></code> belongs to
the UNIX-specific GIO interfaces, thus you have to use the
<code class="filename">gio-unix-2.0.pc</code> pkg-config file when using it.</p>
<p>
</p>
</div>
<div class="refsect1" title="Details">
<a name="gio-Desktop-file-based-GAppInfo.details"></a><h2>Details</h2>
<div class="refsect2" title="GDesktopAppInfo">
<a name="GDesktopAppInfo-struct"></a><h3>GDesktopAppInfo</h3>
<pre class="programlisting">typedef struct _GDesktopAppInfo GDesktopAppInfo;</pre>
<p>
Information about an installed application from a desktop file.</p>
<p>
</p>
</div>
<hr>
<div class="refsect2" title="g_desktop_app_info_new_from_filename ()">
<a name="g-desktop-app-info-new-from-filename"></a><h3>g_desktop_app_info_new_from_filename ()</h3>
<pre class="programlisting"><a class="link" href="gio-Desktop-file-based-GAppInfo.html#GDesktopAppInfo">GDesktopAppInfo</a> * g_desktop_app_info_new_from_filename
(const char *filename);</pre>
<p>
Creates a new <a class="link" href="gio-Desktop-file-based-GAppInfo.html#GDesktopAppInfo"><span class="type">GDesktopAppInfo</span></a>.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>filename</code></em> :</span></p></td>
<td> the path of a desktop file, in the GLib filename encoding
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a new <a class="link" href="gio-Desktop-file-based-GAppInfo.html#GDesktopAppInfo"><span class="type">GDesktopAppInfo</span></a> or <a
href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#NULL--CAPS"
><code class="literal">NULL</code></a> on error.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_desktop_app_info_new_from_keyfile ()">
<a name="g-desktop-app-info-new-from-keyfile"></a><h3>g_desktop_app_info_new_from_keyfile ()</h3>
<pre class="programlisting"><a class="link" href="gio-Desktop-file-based-GAppInfo.html#GDesktopAppInfo">GDesktopAppInfo</a> * g_desktop_app_info_new_from_keyfile (<a
href="http://library.gnome.org/devel/glib/unstable/glib-Key-value-file-parser.html#GKeyFile"
>GKeyFile</a> *key_file);</pre>
<p>
Creates a new <a class="link" href="gio-Desktop-file-based-GAppInfo.html#GDesktopAppInfo"><span class="type">GDesktopAppInfo</span></a>.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>key_file</code></em> :</span></p></td>
<td> an opened <a
href="http://library.gnome.org/devel/glib/unstable/glib-Key-value-file-parser.html#GKeyFile"
><span class="type">GKeyFile</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a new <a class="link" href="gio-Desktop-file-based-GAppInfo.html#GDesktopAppInfo"><span class="type">GDesktopAppInfo</span></a> or <a
href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#NULL--CAPS"
><code class="literal">NULL</code></a> on error.
</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.18</p>
</div>
<hr>
<div class="refsect2" title="g_desktop_app_info_new ()">
<a name="g-desktop-app-info-new"></a><h3>g_desktop_app_info_new ()</h3>
<pre class="programlisting"><a class="link" href="gio-Desktop-file-based-GAppInfo.html#GDesktopAppInfo">GDesktopAppInfo</a> * g_desktop_app_info_new (const char *desktop_id);</pre>
<p>
Creates a new <a class="link" href="gio-Desktop-file-based-GAppInfo.html#GDesktopAppInfo"><span class="type">GDesktopAppInfo</span></a> based on a desktop file id.
</p>
<p>
A desktop file id is the basename of the desktop file, including the
.desktop extension. GIO is looking for a desktop file with this name
in the <code class="filename">applications</code> subdirectories of the XDG data
directories (i.e. the directories specified in the
<code class="envar">XDG_DATA_HOME</code> and <code class="envar">XDG_DATA_DIRS</code> environment
variables). GIO also supports the prefix-to-subdirectory mapping that is
described in the <a class="ulink" href="http://standards.freedesktop.org/menu-spec/latest/" target="_top">Menu Spec</a>
(i.e. a desktop id of kde-foo.desktop will match
<code class="filename">/usr/share/applications/kde/foo.desktop</code>).</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>desktop_id</code></em> :</span></p></td>
<td> the desktop file id
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a new <a class="link" href="gio-Desktop-file-based-GAppInfo.html#GDesktopAppInfo"><span class="type">GDesktopAppInfo</span></a>, or <a
href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#NULL--CAPS"
><code class="literal">NULL</code></a> if no desktop file with that id
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_desktop_app_info_get_is_hidden ()">
<a name="g-desktop-app-info-get-is-hidden"></a><h3>g_desktop_app_info_get_is_hidden ()</h3>
<pre class="programlisting"><a
href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"
>gboolean</a> g_desktop_app_info_get_is_hidden (<a class="link" href="gio-Desktop-file-based-GAppInfo.html#GDesktopAppInfo">GDesktopAppInfo</a> *info);</pre>
<p>
A desktop file is hidden if the Hidden key in it is
set to True.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>info</code></em> :</span></p></td>
<td> a <a class="link" href="gio-Desktop-file-based-GAppInfo.html#GDesktopAppInfo"><span class="type">GDesktopAppInfo</span></a>.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> <a
href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#TRUE--CAPS"
><code class="literal">TRUE</code></a> if hidden, <a
href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#FALSE--CAPS"
><code class="literal">FALSE</code></a> otherwise.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_desktop_app_info_set_desktop_env ()">
<a name="g-desktop-app-info-set-desktop-env"></a><h3>g_desktop_app_info_set_desktop_env ()</h3>
<pre class="programlisting">void g_desktop_app_info_set_desktop_env (const char *desktop_env);</pre>
<p>
Sets the name of the desktop that the application is running in.
This is used by <a class="link" href="GAppInfo.html#g-app-info-should-show" title="g_app_info_should_show ()"><code class="function">g_app_info_should_show()</code></a> to evaluate the
<code class="literal">OnlyShowIn</code> and <code class="literal">NotShowIn</code>
desktop entry fields.
</p>
<p>
The <a class="ulink" href="http://standards.freedesktop.org/menu-spec/latest/" target="_top">Desktop
Menu specification</a> recognizes the following:
</p>
<table border="0" summary="Simple list" class="simplelist">
<tr><td>GNOME</td></tr>
<tr><td>KDE</td></tr>
<tr><td>ROX</td></tr>
<tr><td>XFCE</td></tr>
<tr><td>Old</td></tr>
</table>
<p>
</p>
<p>
Should be called only once; subsequent calls are ignored.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><p><span class="term"><em class="parameter"><code>desktop_env</code></em> :</span></p></td>
<td> a string specifying what desktop this is
</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="GDesktopAppInfoLookup">
<a name="GDesktopAppInfoLookup-struct"></a><h3>GDesktopAppInfoLookup</h3>
<pre class="programlisting">typedef struct _GDesktopAppInfoLookup GDesktopAppInfoLookup;</pre>
<p>
Interface that is used by backends to associate default
handlers with URI schemes.</p>
<p>
</p>
</div>
<hr>
<div class="refsect2" title="G_DESKTOP_APP_INFO_LOOKUP_EXTENSION_POINT_NAME">
<a name="G-DESKTOP-APP-INFO-LOOKUP-EXTENSION-POINT-NAME--CAPS"></a><h3>G_DESKTOP_APP_INFO_LOOKUP_EXTENSION_POINT_NAME</h3>
<pre class="programlisting">#define G_DESKTOP_APP_INFO_LOOKUP_EXTENSION_POINT_NAME "gio-desktop-app-info-lookup"
</pre>
<p>
Extension point for default handler to URI association. See
Extending GIO.</p>
<p>
</p>
</div>
<hr>
<div class="refsect2" title="g_desktop_app_info_lookup_get_default_for_uri_scheme ()">
<a name="g-desktop-app-info-lookup-get-default-for-uri-scheme"></a><h3>g_desktop_app_info_lookup_get_default_for_uri_scheme ()</h3>
<pre class="programlisting"><a class="link" href="GAppInfo.html" title="GAppInfo">GAppInfo</a> * g_desktop_app_info_lookup_get_default_for_uri_scheme
(<a class="link" href="gio-Desktop-file-based-GAppInfo.html#GDesktopAppInfoLookup">GDesktopAppInfoLookup</a> *lookup,
const char *uri_scheme);</pre>
<p>
Gets the default application for launching applications
using this URI scheme for a particular GDesktopAppInfoLookup
implementation.
</p>
<p>
The GDesktopAppInfoLookup interface and this function is used
to implement <a class="link" href="GAppInfo.html#g-app-info-get-default-for-uri-scheme" title="g_app_info_get_default_for_uri_scheme ()"><code class="function">g_app_info_get_default_for_uri_scheme()</code></a> backends
in a GIO module. There is no reason for applications to use it
directly. Applications should use <a class="link" href="GAppInfo.html#g-app-info-get-default-for-uri-scheme" title="g_app_info_get_default_for_uri_scheme ()"><code class="function">g_app_info_get_default_for_uri_scheme()</code></a>.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>lookup</code></em> :</span></p></td>
<td> a <a class="link" href="gio-Desktop-file-based-GAppInfo.html#GDesktopAppInfoLookup"><span class="type">GDesktopAppInfoLookup</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>uri_scheme</code></em> :</span></p></td>
<td> a string containing a URI scheme.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> <a class="link" href="GAppInfo.html" title="GAppInfo"><span class="type">GAppInfo</span></a> for given <em class="parameter"><code>uri_scheme</code></em> or <a
href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#NULL--CAPS"
><code class="literal">NULL</code></a> on error.
</td>
</tr>
</tbody>
</table></div>
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