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<div class="refentry" title="GeocluePosition">
<a name="GeocluePosition"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="GeocluePosition.top_of_page"></a>GeocluePosition</span></h2>
<p>GeocluePosition — Geoclue position client API</p>
</td>
<td valign="top" align="right"></td>
</tr></table></div>
<div class="refsynopsisdiv" title="Synopsis">
<a name="GeocluePosition.synopsis"></a><h2>Synopsis</h2>
<pre class="synopsis">#define <a class="link" href="GeocluePosition.html#GEOCLUE-POSITION-INTERFACE-NAME:CAPS" title="GEOCLUE_POSITION_INTERFACE_NAME">GEOCLUE_POSITION_INTERFACE_NAME</a>
<a class="link" href="GeocluePosition.html#GeocluePosition-struct" title="GeocluePosition">GeocluePosition</a>;
<a class="link" href="GeocluePosition.html" title="GeocluePosition"><span class="returnvalue">GeocluePosition</span></a> * <a class="link" href="GeocluePosition.html#geoclue-position-new" title="geoclue_position_new ()">geoclue_position_new</a> (const <span class="returnvalue">char</span> *service,
const <span class="returnvalue">char</span> *path);
<a class="link" href="geoclue-geoclue-types.html#GeocluePositionFields" title="enum GeocluePositionFields"><span class="returnvalue">GeocluePositionFields</span></a> <a class="link" href="GeocluePosition.html#geoclue-position-get-position" title="geoclue_position_get_position ()">geoclue_position_get_position</a> (<a class="link" href="GeocluePosition.html" title="GeocluePosition"><span class="returnvalue">GeocluePosition</span></a> *position,
<span class="returnvalue">int</span> *timestamp,
<span class="returnvalue">double</span> *latitude,
<span class="returnvalue">double</span> *longitude,
<span class="returnvalue">double</span> *altitude,
<a class="link" href="geoclue-geoclue-accuracy.html#GeoclueAccuracy" title="GeoclueAccuracy"><span class="returnvalue">GeoclueAccuracy</span></a> **accuracy,
<a href="http://library.gnome.org/devel/glib/unstable/glib-Error-Reporting.html#GError"><span class="returnvalue">GError</span></a> **error);
<span class="returnvalue">void</span> (<a class="link" href="GeocluePosition.html#GeocluePositionCallback" title="GeocluePositionCallback ()">*GeocluePositionCallback</a>) (<a class="link" href="GeocluePosition.html" title="GeocluePosition"><span class="returnvalue">GeocluePosition</span></a> *position,
<a class="link" href="geoclue-geoclue-types.html#GeocluePositionFields" title="enum GeocluePositionFields"><span class="returnvalue">GeocluePositionFields</span></a> fields,
<span class="returnvalue">int</span> timestamp,
<span class="returnvalue">double</span> latitude,
<span class="returnvalue">double</span> longitude,
<span class="returnvalue">double</span> altitude,
<a class="link" href="geoclue-geoclue-accuracy.html#GeoclueAccuracy" title="GeoclueAccuracy"><span class="returnvalue">GeoclueAccuracy</span></a> *accuracy,
<a href="http://library.gnome.org/devel/glib/unstable/glib-Error-Reporting.html#GError"><span class="returnvalue">GError</span></a> *error,
<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> userdata);
<span class="returnvalue">void</span> <a class="link" href="GeocluePosition.html#geoclue-position-get-position-async" title="geoclue_position_get_position_async ()">geoclue_position_get_position_async</a> (<a class="link" href="GeocluePosition.html" title="GeocluePosition"><span class="returnvalue">GeocluePosition</span></a> *position,
<a class="link" href="GeocluePosition.html#GeocluePositionCallback" title="GeocluePositionCallback ()"><span class="returnvalue">GeocluePositionCallback</span></a> callback,
<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> userdata);
</pre>
</div>
<div class="refsect1" title="Object Hierarchy">
<a name="GeocluePosition.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>
+----<a class="link" href="GeoclueProvider.html" title="GeoclueProvider">GeoclueProvider</a>
+----GeocluePosition
</pre>
</div>
<div class="refsect1" title="Signals">
<a name="GeocluePosition.signals"></a><h2>Signals</h2>
<pre class="synopsis">
"<a class="link" href="GeocluePosition.html#GeocluePosition-position-changed" title='The "position-changed" signal'>position-changed</a>" : Run First / No Recursion
</pre>
</div>
<div class="refsect1" title="Description">
<a name="GeocluePosition.description"></a><h2>Description</h2>
<p>
<a class="link" href="GeocluePosition.html" title="GeocluePosition"><span class="type">GeocluePosition</span></a> contains position-related methods and signals.
It is part of the Geoclue public C client API which uses D-Bus
to communicate with the actual provider.
</p>
<p>
After a <a class="link" href="GeocluePosition.html" title="GeocluePosition"><span class="type">GeocluePosition</span></a> is created with <a class="link" href="GeocluePosition.html#geoclue-position-new" title="geoclue_position_new ()"><code class="function">geoclue_position_new()</code></a> or
using <code class="function">geoclye_master_client_create_position()</code>, the
<a class="link" href="GeocluePosition.html#geoclue-position-get-position" title="geoclue_position_get_position ()"><code class="function">geoclue_position_get_position()</code></a> and <a class="link" href="GeocluePosition.html#geoclue-position-get-position-async" title="geoclue_position_get_position_async ()"><code class="function">geoclue_position_get_position_async()</code></a>
method and the position-changed signal can be used to obtain the current position.</p>
</div>
<div class="refsect1" title="Details">
<a name="GeocluePosition.details"></a><h2>Details</h2>
<div class="refsect2" title="GEOCLUE_POSITION_INTERFACE_NAME">
<a name="GEOCLUE-POSITION-INTERFACE-NAME:CAPS"></a><h3>GEOCLUE_POSITION_INTERFACE_NAME</h3>
<pre class="programlisting">#define GEOCLUE_POSITION_INTERFACE_NAME "org.freedesktop.Geoclue.Position"
</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2" title="GeocluePosition">
<a name="GeocluePosition-struct"></a><h3>GeocluePosition</h3>
<pre class="programlisting">typedef struct _GeocluePosition GeocluePosition;</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2" title="geoclue_position_new ()">
<a name="geoclue-position-new"></a><h3>geoclue_position_new ()</h3>
<pre class="programlisting"><a class="link" href="GeocluePosition.html" title="GeocluePosition"><span class="returnvalue">GeocluePosition</span></a> * geoclue_position_new (const <span class="returnvalue">char</span> *service,
const <span class="returnvalue">char</span> *path);</pre>
<p>
Creates a <a class="link" href="GeocluePosition.html" title="GeocluePosition"><span class="type">GeocluePosition</span></a> with given D-Bus service name and path.</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>service</code></em> :</span></p></td>
<td> D-Bus service name
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>path</code></em> :</span></p></td>
<td> D-Bus path name
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> Pointer to a new <a class="link" href="GeocluePosition.html" title="GeocluePosition"><span class="type">GeocluePosition</span></a>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="geoclue_position_get_position ()">
<a name="geoclue-position-get-position"></a><h3>geoclue_position_get_position ()</h3>
<pre class="programlisting"><a class="link" href="geoclue-geoclue-types.html#GeocluePositionFields" title="enum GeocluePositionFields"><span class="returnvalue">GeocluePositionFields</span></a> geoclue_position_get_position (<a class="link" href="GeocluePosition.html" title="GeocluePosition"><span class="returnvalue">GeocluePosition</span></a> *position,
<span class="returnvalue">int</span> *timestamp,
<span class="returnvalue">double</span> *latitude,
<span class="returnvalue">double</span> *longitude,
<span class="returnvalue">double</span> *altitude,
<a class="link" href="geoclue-geoclue-accuracy.html#GeoclueAccuracy" title="GeoclueAccuracy"><span class="returnvalue">GeoclueAccuracy</span></a> **accuracy,
<a href="http://library.gnome.org/devel/glib/unstable/glib-Error-Reporting.html#GError"><span class="returnvalue">GError</span></a> **error);</pre>
<p>
Obtains the current position. <em class="parameter"><code>timestamp</code></em> will contain the time of
the actual position measurement. <em class="parameter"><code>accuracy</code></em> is a rough estimate of the
accuracy of the current position.
</p>
<p>
If the caller is not interested in some values, the pointers can be
left <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>.</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>position</code></em> :</span></p></td>
<td> A <a class="link" href="GeocluePosition.html" title="GeocluePosition"><span class="type">GeocluePosition</span></a> object
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>timestamp</code></em> :</span></p></td>
<td> Pointer to returned time of position measurement (Unix timestamp) or <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>latitude</code></em> :</span></p></td>
<td> Pointer to returned latitude in degrees or <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>longitude</code></em> :</span></p></td>
<td> Pointer to returned longitude in degrees or <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>altitude</code></em> :</span></p></td>
<td> Pointer to returned altitude in meters or <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>accuracy</code></em> :</span></p></td>
<td> Pointer to returned <a class="link" href="geoclue-geoclue-accuracy.html#GeoclueAccuracy" title="GeoclueAccuracy"><span class="type">GeoclueAccuracy</span></a> or <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>error</code></em> :</span></p></td>
<td> Pointer to returned <span class="type">Gerror</span> or <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> A <a class="link" href="geoclue-geoclue-types.html#GeocluePositionFields" title="enum GeocluePositionFields"><span class="type">GeocluePositionFields</span></a> bitfield representing the
validity of the position values.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="GeocluePositionCallback ()">
<a name="GeocluePositionCallback"></a><h3>GeocluePositionCallback ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> (*GeocluePositionCallback) (<a class="link" href="GeocluePosition.html" title="GeocluePosition"><span class="returnvalue">GeocluePosition</span></a> *position,
<a class="link" href="geoclue-geoclue-types.html#GeocluePositionFields" title="enum GeocluePositionFields"><span class="returnvalue">GeocluePositionFields</span></a> fields,
<span class="returnvalue">int</span> timestamp,
<span class="returnvalue">double</span> latitude,
<span class="returnvalue">double</span> longitude,
<span class="returnvalue">double</span> altitude,
<a class="link" href="geoclue-geoclue-accuracy.html#GeoclueAccuracy" title="GeoclueAccuracy"><span class="returnvalue">GeoclueAccuracy</span></a> *accuracy,
<a href="http://library.gnome.org/devel/glib/unstable/glib-Error-Reporting.html#GError"><span class="returnvalue">GError</span></a> *error,
<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> userdata);</pre>
<p>
Callback function for <a class="link" href="GeocluePosition.html#geoclue-position-get-position-async" title="geoclue_position_get_position_async ()"><code class="function">geoclue_position_get_position_async()</code></a>.</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>position</code></em> :</span></p></td>
<td> A <a class="link" href="GeocluePosition.html" title="GeocluePosition"><span class="type">GeocluePosition</span></a> object
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>fields</code></em> :</span></p></td>
<td> A <a class="link" href="geoclue-geoclue-types.html#GeocluePositionFields" title="enum GeocluePositionFields"><span class="type">GeocluePositionFields</span></a> bitfield representing the validity of the position values
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>timestamp</code></em> :</span></p></td>
<td> Time of position measurement (Unix timestamp)
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>latitude</code></em> :</span></p></td>
<td> Latitude in degrees
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>longitude</code></em> :</span></p></td>
<td> Longitude in degrees
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>altitude</code></em> :</span></p></td>
<td> Altitude in meters
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>accuracy</code></em> :</span></p></td>
<td> Accuracy of measurement as <a class="link" href="geoclue-geoclue-accuracy.html#GeoclueAccuracy" title="GeoclueAccuracy"><span class="type">GeoclueAccuracy</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>error</code></em> :</span></p></td>
<td> Error as <span class="type">Gerror</span> or <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>userdata</code></em> :</span></p></td>
<td> User data pointer set in <a class="link" href="GeocluePosition.html#geoclue-position-get-position-async" title="geoclue_position_get_position_async ()"><code class="function">geoclue_position_get_position_async()</code></a>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="geoclue_position_get_position_async ()">
<a name="geoclue-position-get-position-async"></a><h3>geoclue_position_get_position_async ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> geoclue_position_get_position_async (<a class="link" href="GeocluePosition.html" title="GeocluePosition"><span class="returnvalue">GeocluePosition</span></a> *position,
<a class="link" href="GeocluePosition.html#GeocluePositionCallback" title="GeocluePositionCallback ()"><span class="returnvalue">GeocluePositionCallback</span></a> callback,
<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> userdata);</pre>
<p>
Function returns (essentially) immediately and calls <em class="parameter"><code>callback</code></em> when current position
is available or when D-Bus timeouts.</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>position</code></em> :</span></p></td>
<td> A <a class="link" href="GeocluePosition.html" title="GeocluePosition"><span class="type">GeocluePosition</span></a> object
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>callback</code></em> :</span></p></td>
<td> A <a class="link" href="GeocluePosition.html#GeocluePositionCallback" title="GeocluePositionCallback ()"><span class="type">GeocluePositionCallback</span></a> function that should be called when return values are available
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>userdata</code></em> :</span></p></td>
<td> pointer for user specified data
</td>
</tr>
</tbody>
</table></div>
</div>
</div>
<div class="refsect1" title="Signal Details">
<a name="GeocluePosition.signal-details"></a><h2>Signal Details</h2>
<div class="refsect2" title='The "position-changed" signal'>
<a name="GeocluePosition-position-changed"></a><h3>The <code class="literal">"position-changed"</code> signal</h3>
<pre class="programlisting"><span class="returnvalue">void</span> user_function (<a class="link" href="GeocluePosition.html" title="GeocluePosition"><span class="type">GeocluePosition</span></a> *position,
<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> fields,
<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> timestamp,
<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> latitude,
<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> longitude,
<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> altitude,
<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> accuracy,
<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data) : Run First / No Recursion</pre>
<p>
The position-changed signal is emitted each time the position changes. Clients should note
that not all providers support signals.</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>position</code></em> :</span></p></td>
<td> the <a class="link" href="GeocluePosition.html" title="GeocluePosition"><span class="type">GeocluePosition</span></a> object emitting the signal
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>fields</code></em> :</span></p></td>
<td> A <a class="link" href="geoclue-geoclue-types.html#GeocluePositionFields" title="enum GeocluePositionFields"><span class="type">GeocluePositionFields</span></a> bitfield representing the validity of the position values
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>timestamp</code></em> :</span></p></td>
<td> Time of position measurement (Unix timestamp)
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>latitude</code></em> :</span></p></td>
<td> Latitude in degrees
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>longitude</code></em> :</span></p></td>
<td> Longitude in degrees
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>altitude</code></em> :</span></p></td>
<td> Altitude in meters
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>accuracy</code></em> :</span></p></td>
<td> Accuracy of measurement as <a class="link" href="geoclue-geoclue-accuracy.html#GeoclueAccuracy" title="GeoclueAccuracy"><span class="type">GeoclueAccuracy</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>user_data</code></em> :</span></p></td>
<td>user data set when the signal handler was connected.</td>
</tr>
</tbody>
</table></div>
</div>
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