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<a name="dbus-glib-DBus-GObject-related-functions"></a><div class="titlepage"></div>
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<h2><span class="refentrytitle"><a name="dbus-glib-DBus-GObject-related-functions.top_of_page"></a>DBus GObject related functions</span></h2>
<p>DBus GObject related functions — Exporting a <span class="type">GObject</span> remotely</p>
</td>
<td valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="dbus-glib-DBus-GObject-related-functions.stability-level"></a><h2>Stability Level</h2>
Stable, unless otherwise indicated
</div>
<div class="refsynopsisdiv">
<a name="dbus-glib-DBus-GObject-related-functions.synopsis"></a><h2>Synopsis</h2>
<pre class="synopsis">
#include <dbus/dbus-glib.h>
struct <a class="link" href="dbus-glib-DBus-GObject-related-functions.html#DBusGObjectInfo" title="struct DBusGObjectInfo">DBusGObjectInfo</a>;
<span class="returnvalue">void</span> <a class="link" href="dbus-glib-DBus-GObject-related-functions.html#dbus-g-object-type-install-info" title="dbus_g_object_type_install_info ()">dbus_g_object_type_install_info</a> (<em class="parameter"><code><span class="type">GType</span> object_type</code></em>,
<em class="parameter"><code>const <a class="link" href="dbus-glib-DBus-GObject-related-functions.html#DBusGObjectInfo" title="struct DBusGObjectInfo"><span class="type">DBusGObjectInfo</span></a> *info</code></em>);
<span class="returnvalue">void</span> <a class="link" href="dbus-glib-DBus-GObject-related-functions.html#dbus-g-object-type-register-shadow-property" title="dbus_g_object_type_register_shadow_property ()">dbus_g_object_type_register_shadow_property</a>
(<em class="parameter"><code><span class="type">GType</span> iface_type</code></em>,
<em class="parameter"><code>const <span class="type">char</span> *dbus_prop_name</code></em>,
<em class="parameter"><code>const <span class="type">char</span> *shadow_prop_name</code></em>);
<span class="returnvalue">GType</span> <a class="link" href="dbus-glib-DBus-GObject-related-functions.html#dbus-g-object-path-get-g-type" title="dbus_g_object_path_get_g_type ()">dbus_g_object_path_get_g_type</a> (<em class="parameter"><code><span class="type">void</span></code></em>);
<span class="returnvalue">void</span> <a class="link" href="dbus-glib-DBus-GObject-related-functions.html#dbus-g-object-register-marshaller" title="dbus_g_object_register_marshaller ()">dbus_g_object_register_marshaller</a> (<em class="parameter"><code><span class="type">GClosureMarshal</span> marshaller</code></em>,
<em class="parameter"><code><span class="type">GType</span> rettype</code></em>,
<em class="parameter"><code>...</code></em>);
<span class="returnvalue">void</span> <a class="link" href="dbus-glib-DBus-GObject-related-functions.html#dbus-g-object-register-marshaller-array" title="dbus_g_object_register_marshaller_array ()">dbus_g_object_register_marshaller_array</a>
(<em class="parameter"><code><span class="type">GClosureMarshal</span> marshaller</code></em>,
<em class="parameter"><code><span class="type">GType</span> rettype</code></em>,
<em class="parameter"><code><span class="type">guint</span> n_types</code></em>,
<em class="parameter"><code>const <span class="type">GType</span> *types</code></em>);
<span class="returnvalue">void</span> <a class="link" href="dbus-glib-DBus-GObject-related-functions.html#dbus-glib-global-set-disable-legacy-property-access" title="dbus_glib_global_set_disable_legacy_property_access ()">dbus_glib_global_set_disable_legacy_property_access</a>
(<em class="parameter"><code><span class="type">void</span></code></em>);
</pre>
</div>
<div class="refsect1">
<a name="dbus-glib-DBus-GObject-related-functions.description"></a><h2>Description</h2>
<p>
FIXME
</p>
</div>
<div class="refsect1">
<a name="dbus-glib-DBus-GObject-related-functions.details"></a><h2>Details</h2>
<div class="refsect2">
<a name="DBusGObjectInfo"></a><h3>struct DBusGObjectInfo</h3>
<pre class="programlisting">struct DBusGObjectInfo {
int format_version;
const DBusGMethodInfo *method_infos;
int n_method_infos;
const char *data;
const char *exported_signals;
const char *exported_properties;
};
</pre>
<p>
Introspection data for a <span class="type">GObject</span>, normally autogenerated by
a tool such as <a class="link" href="dbus-binding-tool.html" title="dbus-binding-tool"><span class="type">dbus-binding-tool</span></a>.
</p>
<div class="variablelist"><table border="0" class="variablelist">
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<col align="left" valign="top">
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</colgroup>
<tbody>
<tr>
<td><p><span class="term"><span class="type">int</span> <em class="structfield"><code><a name="DBusGObjectInfo.format-version"></a>format_version</code></em>;</span></p></td>
<td>Allows us to change the rest of this struct
by adding DBusGObjectInfo2, DBusGObjectInfo3, etc.</td>
</tr>
<tr>
<td><p><span class="term">const <a class="link" href="dbus-glib-DBusGMethod.html#DBusGMethodInfo" title="struct DBusGMethodInfo"><span class="type">DBusGMethodInfo</span></a> *<em class="structfield"><code><a name="DBusGObjectInfo.method-infos"></a>method_infos</code></em>;</span></p></td>
<td>Array of method pointers</td>
</tr>
<tr>
<td><p><span class="term"><span class="type">int</span> <em class="structfield"><code><a name="DBusGObjectInfo.n-method-infos"></a>n_method_infos</code></em>;</span></p></td>
<td>Length of the infos array</td>
</tr>
<tr>
<td><p><span class="term">const <span class="type">char</span> *<em class="structfield"><code><a name="DBusGObjectInfo.data"></a>data</code></em>;</span></p></td>
<td>Introspection data</td>
</tr>
<tr>
<td><p><span class="term">const <span class="type">char</span> *<em class="structfield"><code><a name="DBusGObjectInfo.exported-signals"></a>exported_signals</code></em>;</span></p></td>
<td>Exported signals</td>
</tr>
<tr>
<td><p><span class="term">const <span class="type">char</span> *<em class="structfield"><code><a name="DBusGObjectInfo.exported-properties"></a>exported_properties</code></em>;</span></p></td>
<td>Exported properties</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="dbus-g-object-type-install-info"></a><h3>dbus_g_object_type_install_info ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> dbus_g_object_type_install_info (<em class="parameter"><code><span class="type">GType</span> object_type</code></em>,
<em class="parameter"><code>const <a class="link" href="dbus-glib-DBus-GObject-related-functions.html#DBusGObjectInfo" title="struct DBusGObjectInfo"><span class="type">DBusGObjectInfo</span></a> *info</code></em>);</pre>
<p>
Install introspection information about the given object <span class="type">GType</span>
sufficient to allow methods on the object to be invoked by name.
The introspection information is normally generated by
dbus-glib-tool, then this function is called in the
<code class="function">class_init()</code> for the object class.
</p>
<p>
Once introspection information has been installed, instances of the
object registered with <a class="link" href="dbus-glib-DBusGConnection.html#dbus-g-connection-register-g-object" title="dbus_g_connection_register_g_object ()"><code class="function">dbus_g_connection_register_g_object()</code></a> can have
their methods invoked remotely.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>object_type</code></em> :</span></p></td>
<td>
<span class="type">GType</span> for the object</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>info</code></em> :</span></p></td>
<td>introspection data generated by <span class="type">dbus-glib-tool</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="dbus-g-object-type-register-shadow-property"></a><h3>dbus_g_object_type_register_shadow_property ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> dbus_g_object_type_register_shadow_property
(<em class="parameter"><code><span class="type">GType</span> iface_type</code></em>,
<em class="parameter"><code>const <span class="type">char</span> *dbus_prop_name</code></em>,
<em class="parameter"><code>const <span class="type">char</span> *shadow_prop_name</code></em>);</pre>
<p>
Registers a new property name <em class="parameter"><code>shadow_prop_name</code></em> that overrides the
<em class="parameter"><code>dbus_prop_name</code></em> in D-Bus property get/set requests. Since all properties for
all interfaces implemented by a GObject exist in the same namespace, this
allows implementations to use the same property name in two or more D-Bus
interfaces implemented by the same GObject, as long as one of those D-Bus
interface properties is registered with a shadow property name.
</p>
<p>
For example, if both org.foobar.Baz.InterfaceA and org.foobar.Baz.InterfaceB
have a D-Bus property called "Bork", the developer assigns a shadow property
name to the conflicting property name in one or both of these GInterfaces to
resolve the conflict. Assume the GInterface implementing
org.foobar.Baz.InterfaceA registers a shadow property called "a-bork", while
the GInterface implementing org.foobar.Baz.InterfaceB registers a shadow
property called "b-bork". The GObject implementing both these GInterfaces
would then use #<code class="function">g_object_class_override_property()</code> to implement both
"a-bork" and "b-bork" and D-Bus requests for "Bork" on either D-Bus interface
will not conflict.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>iface_type</code></em> :</span></p></td>
<td>
<span class="type">GType</span> for the <span class="type">GInterface</span>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>dbus_prop_name</code></em> :</span></p></td>
<td>D-Bus property name (as specified in the introspection data)
to override with the shadow property name (as specified in the GType's
initialization function, ie glib-style)</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>shadow_prop_name</code></em> :</span></p></td>
<td>property name which should override the shadow property</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="dbus-g-object-path-get-g-type"></a><h3>dbus_g_object_path_get_g_type ()</h3>
<pre class="programlisting"><span class="returnvalue">GType</span> dbus_g_object_path_get_g_type (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2">
<a name="dbus-g-object-register-marshaller"></a><h3>dbus_g_object_register_marshaller ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> dbus_g_object_register_marshaller (<em class="parameter"><code><span class="type">GClosureMarshal</span> marshaller</code></em>,
<em class="parameter"><code><span class="type">GType</span> rettype</code></em>,
<em class="parameter"><code>...</code></em>);</pre>
<p>
Register a <span class="type">GClosureMarshal</span> to be used for signal invocations,
giving its return type and a list of parameter types,
followed by <code class="literal">G_TYPE_INVALID</code>.
</p>
<p>
This function will not be needed once GLib includes libffi.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>marshaller</code></em> :</span></p></td>
<td>a GClosureMarshal to be used for invocation</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>rettype</code></em> :</span></p></td>
<td>a GType for the return type of the function</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>...</code></em> :</span></p></td>
<td>The parameter <span class="type">GTypes</span>, followed by <code class="literal">G_TYPE_INVALID</code>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="dbus-g-object-register-marshaller-array"></a><h3>dbus_g_object_register_marshaller_array ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> dbus_g_object_register_marshaller_array
(<em class="parameter"><code><span class="type">GClosureMarshal</span> marshaller</code></em>,
<em class="parameter"><code><span class="type">GType</span> rettype</code></em>,
<em class="parameter"><code><span class="type">guint</span> n_types</code></em>,
<em class="parameter"><code>const <span class="type">GType</span> *types</code></em>);</pre>
<p>
Register a <span class="type">GClosureMarshal</span> to be used for signal invocations.
<em class="parameter"><code>see_also</code></em> <a class="link" href="dbus-glib-DBus-GObject-related-functions.html#dbus-g-object-register-marshaller" title="dbus_g_object_register_marshaller ()"><code class="function">dbus_g_object_register_marshaller()</code></a>
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>marshaller</code></em> :</span></p></td>
<td>a <span class="type">GClosureMarshal</span> to be used for invocation</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>rettype</code></em> :</span></p></td>
<td>a <span class="type">GType</span> for the return type of the function</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>n_types</code></em> :</span></p></td>
<td>number of function parameters</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>types</code></em> :</span></p></td>
<td>a C array of GTypes values</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="dbus-glib-global-set-disable-legacy-property-access"></a><h3>dbus_glib_global_set_disable_legacy_property_access ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> dbus_glib_global_set_disable_legacy_property_access
(<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<p>
For historical reasons, DBus-GLib will allow read-only
access to every GObject property of an object exported
to the bus, regardless of whether or not the property
is listed in the type info installed with
<a class="link" href="dbus-glib-DBus-GObject-related-functions.html#dbus-g-object-type-install-info" title="dbus_g_object_type_install_info ()"><code class="function">dbus_g_object_type_install_info()</code></a>. (Write access is
denied however).
</p>
<p>
If you wish to restrict even read-only access, you
can call this method to globally change the behavior
for the entire process.
</p>
<p class="since">Since 0.88</p>
</div>
</div>
<div class="refsect1">
<a name="dbus-glib-DBus-GObject-related-functions.see-also"></a><h2>See Also</h2>
<span class="type">GObject</span>
</div>
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