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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>GDataFreebaseService: GData Reference Manual</title>
<meta name="generator" content="DocBook XSL Stylesheets Vsnapshot">
<link rel="home" href="index.html" title="GData Reference Manual">
<link rel="up" href="ch19.html" title="Google Freebase API">
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</head>
<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
<table class="navigation" id="top" width="100%" summary="Navigation header" cellpadding="2" cellspacing="5"><tr valign="middle">
<td width="100%" align="left" class="shortcuts">
<a href="#" class="shortcut">Top</a><span id="nav_description">  <span class="dim">|</span> 
                  <a href="#GDataFreebaseService.description" class="shortcut">Description</a></span><span id="nav_hierarchy">  <span class="dim">|</span> 
                  <a href="#GDataFreebaseService.object-hierarchy" class="shortcut">Object Hierarchy</a></span><span id="nav_properties">  <span class="dim">|</span> 
                  <a href="#GDataFreebaseService.properties" class="shortcut">Properties</a></span>
</td>
<td><a accesskey="h" href="index.html"><img src="home.png" width="16" height="16" border="0" alt="Home"></a></td>
<td><a accesskey="u" href="ch19.html"><img src="up.png" width="16" height="16" border="0" alt="Up"></a></td>
<td><a accesskey="p" href="ch19.html"><img src="left.png" width="16" height="16" border="0" alt="Prev"></a></td>
<td><a accesskey="n" href="GDataFreebaseQuery.html"><img src="right.png" width="16" height="16" border="0" alt="Next"></a></td>
</tr></table>
<div class="refentry">
<a name="GDataFreebaseService"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="GDataFreebaseService.top_of_page"></a>GDataFreebaseService</span></h2>
<p>GDataFreebaseService — GData Freebase service object</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="GDataFreebaseService.stability-level"></a><h2>Stability Level</h2>
<acronym title="The intention of a Stable interface is to enable arbitrary third parties to
develop applications to these interfaces, release them, and have confidence that
they will run on all minor releases of the product (after the one in which the
interface was introduced, and within the same major release). Even at a major
release, incompatible changes are expected to be rare, and to have strong
justifications.
"><span class="acronym">Stable</span></acronym>, unless otherwise indicated
</div>
<div class="refsect1">
<a name="GDataFreebaseService.functions"></a><h2>Functions</h2>
<div class="informaltable"><table class="informaltable" 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="GDataFreebaseService.html" title="GDataFreebaseService"><span class="returnvalue">GDataFreebaseService</span></a> *
</td>
<td class="function_name">
<a class="link" href="GDataFreebaseService.html#gdata-freebase-service-new" title="gdata_freebase_service_new ()">gdata_freebase_service_new</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="GDataAuthorizationDomain.html" title="GDataAuthorizationDomain"><span class="returnvalue">GDataAuthorizationDomain</span></a> *
</td>
<td class="function_name">
<a class="link" href="GDataFreebaseService.html#gdata-freebase-service-get-primary-authorization-domain" title="gdata_freebase_service_get_primary_authorization_domain ()">gdata_freebase_service_get_primary_authorization_domain</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="GDataFreebaseResult.html" title="GDataFreebaseResult"><span class="returnvalue">GDataFreebaseResult</span></a> *
</td>
<td class="function_name">
<a class="link" href="GDataFreebaseService.html#gdata-freebase-service-query" title="gdata_freebase_service_query ()">gdata_freebase_service_query</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="GDataFreebaseService.html#gdata-freebase-service-query-async" title="gdata_freebase_service_query_async ()">gdata_freebase_service_query_async</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="GDataFreebaseTopicResult.html" title="GDataFreebaseTopicResult"><span class="returnvalue">GDataFreebaseTopicResult</span></a> *
</td>
<td class="function_name">
<a class="link" href="GDataFreebaseService.html#gdata-freebase-service-get-topic" title="gdata_freebase_service_get_topic ()">gdata_freebase_service_get_topic</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="GDataFreebaseService.html#gdata-freebase-service-get-topic-async" title="gdata_freebase_service_get_topic_async ()">gdata_freebase_service_get_topic_async</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="GDataFreebaseSearchResult.html" title="GDataFreebaseSearchResult"><span class="returnvalue">GDataFreebaseSearchResult</span></a> *
</td>
<td class="function_name">
<a class="link" href="GDataFreebaseService.html#gdata-freebase-service-search" title="gdata_freebase_service_search ()">gdata_freebase_service_search</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="GDataFreebaseService.html#gdata-freebase-service-search-async" title="gdata_freebase_service_search_async ()">gdata_freebase_service_search_async</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">GInputStream</span> *
</td>
<td class="function_name">
<a class="link" href="GDataFreebaseService.html#gdata-freebase-service-get-image" title="gdata_freebase_service_get_image ()">gdata_freebase_service_get_image</a> <span class="c_punctuation">()</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="GDataFreebaseService.properties"></a><h2>Properties</h2>
<div class="informaltable"><table class="informaltable" border="0">
<colgroup>
<col width="150px" class="properties_type">
<col width="300px" class="properties_name">
<col width="200px" class="properties_flags">
</colgroup>
<tbody><tr>
<td class="property_type">
<a href="../glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *</td>
<td class="property_name"><a class="link" href="GDataFreebaseService.html#GDataFreebaseService--developer-key" title="The “developer-key” property">developer-key</a></td>
<td class="property_flags">Read / Write / Construct Only</td>
</tr></tbody>
</table></div>
</div>
<div class="refsect1">
<a name="GDataFreebaseService.other"></a><h2>Types and Values</h2>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="name">
<col class="description">
</colgroup>
<tbody>
<tr>
<td class="datatype_keyword"> </td>
<td class="function_name"><a class="link" href="GDataFreebaseService.html#GDataFreebaseService-struct" title="GDataFreebaseService">GDataFreebaseService</a></td>
</tr>
<tr>
<td class="datatype_keyword"> </td>
<td class="function_name"><a class="link" href="GDataFreebaseService.html#GDataFreebaseServiceClass" title="GDataFreebaseServiceClass">GDataFreebaseServiceClass</a></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="GDataFreebaseService.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="screen">    <a href="../gobject/gobject-The-Base-Object-Type.html#GObject-struct">GObject</a>
    <span class="lineart">╰──</span> <a class="link" href="GDataService.html" title="GDataService">GDataService</a>
        <span class="lineart">╰──</span> GDataFreebaseService
</pre>
</div>
<div class="refsect1">
<a name="GDataFreebaseService.includes"></a><h2>Includes</h2>
<pre class="synopsis">#include &lt;gdata/services/freebase/gdata-freebase-service.h&gt;
</pre>
</div>
<div class="refsect1">
<a name="GDataFreebaseService.description"></a><h2>Description</h2>
<p><a class="link" href="GDataFreebaseService.html" title="GDataFreebaseService"><span class="type">GDataFreebaseService</span></a> is a subclass of <a class="link" href="GDataService.html" title="GDataService"><span class="type">GDataService</span></a> for communicating with the Google Freebase API. It supports queries
in MQL format, that allows highly flexible queries on any topic. MQL is a JSON based query language, MQL requests consist
of a mix of defined and empty values for types in the Freebase schema, those "placeholder" values will be filled in on the
reply. For more information and examples, see the <a class="ulink" href="https://developers.google.com/freebase/v1/mql-overview" target="_top">
MQL overview page</a>.</p>
<p>For more details of Google Freebase API, see the <a class="ulink" href="https://developers.google.com/freebase/v1/" target="_top">
online documentation</a>.</p>
<p>Since August 2016, <a class="ulink" href="https://developers.google.com/freebase/" target="_top">Google has retired Freebase</a>,
so all of these APIs will return an error if used; and should be considered
deprecated.</p>
</div>
<div class="refsect1">
<a name="GDataFreebaseService.functions_details"></a><h2>Functions</h2>
<div class="refsect2">
<a name="gdata-freebase-service-new"></a><h3>gdata_freebase_service_new ()</h3>
<pre class="programlisting"><a class="link" href="GDataFreebaseService.html" title="GDataFreebaseService"><span class="returnvalue">GDataFreebaseService</span></a> *
gdata_freebase_service_new (<em class="parameter"><code>const <a href="../glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *developer_key</code></em>,
                            <em class="parameter"><code><a class="link" href="GDataAuthorizer.html" title="GDataAuthorizer"><span class="type">GDataAuthorizer</span></a> *authorizer</code></em>);</pre>
<div class="warning">
<p><code class="literal">gdata_freebase_service_new</code> has been deprecated since version 0.17.7 and should not be used in newly-written code.</p>
<p>Google Freebase has been permanently shut down.</p>
</div>
<p>Creates a new <a class="link" href="GDataFreebaseService.html" title="GDataFreebaseService"><span class="type">GDataFreebaseService</span></a> using the given <a class="link" href="GDataAuthorizer.html" title="GDataAuthorizer"><span class="type">GDataAuthorizer</span></a>. If <em class="parameter"><code>authorizer</code></em>
 is <a href="../glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>, all requests are made as an unauthenticated user.
Having both <em class="parameter"><code>developer_key</code></em>
 and <em class="parameter"><code>authorizer</code></em>
 set to <a href="../glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> is allowed, but this should be reserved for debugging situations, as there is a certain
key-less quota for those purposes. If this service is used on any code intended to be deployed, one or both of <em class="parameter"><code>developer_key</code></em>
 and <em class="parameter"><code>authorizer</code></em>

should be non-<a href="../glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> and valid.</p>
<div class="refsect3">
<a name="gdata-freebase-service-new.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" 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>developer_key</p></td>
<td class="parameter_description"><p>developer key to use the API, or <a href="../glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>authorizer</p></td>
<td class="parameter_description"><p>a <a class="link" href="GDataAuthorizer.html" title="GDataAuthorizer"><span class="type">GDataAuthorizer</span></a> to authorize the service's requests, or <a href="../glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gdata-freebase-service-new.returns"></a><h4>Returns</h4>
<p>a new <a class="link" href="GDataFreebaseService.html" title="GDataFreebaseService"><span class="type">GDataFreebaseService</span></a>; unref with <a href="../gobject/gobject-The-Base-Object-Type.html#g-object-unref"><code class="function">g_object_unref()</code></a>. </p>
<p><span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span></p>
</div>
<p class="since">Since: <a class="link" href="ix20.html#api-index-0.15.1">0.15.1</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gdata-freebase-service-get-primary-authorization-domain"></a><h3>gdata_freebase_service_get_primary_authorization_domain ()</h3>
<pre class="programlisting"><a class="link" href="GDataAuthorizationDomain.html" title="GDataAuthorizationDomain"><span class="returnvalue">GDataAuthorizationDomain</span></a> *
gdata_freebase_service_get_primary_authorization_domain
                               (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<div class="warning">
<p><code class="literal">gdata_freebase_service_get_primary_authorization_domain</code> has been deprecated since version 0.17.7 and should not be used in newly-written code.</p>
<p>Google Freebase has been permanently shut down.</p>
</div>
<p>The primary <a class="link" href="GDataAuthorizationDomain.html" title="GDataAuthorizationDomain"><span class="type">GDataAuthorizationDomain</span></a> for interacting with Freebase. This will not normally need to be used, as it's used internally
by the <a class="link" href="GDataFreebaseService.html" title="GDataFreebaseService"><span class="type">GDataFreebaseService</span></a> methods. However, if using the plain <a class="link" href="GDataService.html" title="GDataService"><span class="type">GDataService</span></a> methods to implement custom queries or requests which libgdata
does not support natively, then this domain may be needed to authorize the requests.</p>
<p>The domain never changes, and is interned so that pointer comparison can be used to differentiate it from other authorization domains.</p>
<div class="refsect3">
<a name="gdata-freebase-service-get-primary-authorization-domain.returns"></a><h4>Returns</h4>
<p>the service's authorization domain. </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>
<p class="since">Since: <a class="link" href="ix20.html#api-index-0.15.1">0.15.1</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gdata-freebase-service-query"></a><h3>gdata_freebase_service_query ()</h3>
<pre class="programlisting"><a class="link" href="GDataFreebaseResult.html" title="GDataFreebaseResult"><span class="returnvalue">GDataFreebaseResult</span></a> *
gdata_freebase_service_query (<em class="parameter"><code><a class="link" href="GDataFreebaseService.html" title="GDataFreebaseService"><span class="type">GDataFreebaseService</span></a> *self</code></em>,
                              <em class="parameter"><code><a class="link" href="GDataFreebaseQuery.html" title="GDataFreebaseQuery"><span class="type">GDataFreebaseQuery</span></a> *query</code></em>,
                              <em class="parameter"><code><span class="type">GCancellable</span> *cancellable</code></em>,
                              <em class="parameter"><code><a href="../glib/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> **error</code></em>);</pre>
<div class="warning">
<p><code class="literal">gdata_freebase_service_query</code> has been deprecated since version 0.17.7 and should not be used in newly-written code.</p>
<p>Google Freebase has been permanently shut down.</p>
</div>
<p>Performs a MQL query on the service, you can find out more about MQL in the <a class="ulink" href="http://mql.freebaseapps.com/index.html" target="_top">online MQL documentation</a>.</p>
<div class="refsect3">
<a name="gdata-freebase-service-query.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" 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="GDataFreebaseService.html" title="GDataFreebaseService"><span class="type">GDataFreebaseService</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>query</p></td>
<td class="parameter_description"><p>a <a class="link" href="GDataFreebaseQuery.html" title="GDataFreebaseQuery"><span class="type">GDataFreebaseQuery</span></a> with the MQL query</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>cancellable</p></td>
<td class="parameter_description"><p>optional <span class="type">GCancellable</span> object, or <a href="../glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>error</p></td>
<td class="parameter_description"><p>a <a href="../glib/glib-Error-Reporting.html#GError"><span class="type">GError</span></a>, or <a href="../glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gdata-freebase-service-query.returns"></a><h4>Returns</h4>
<p>a <a class="link" href="GDataFreebaseResult.html" title="GDataFreebaseResult"><span class="type">GDataFreebaseResult</span></a> containing the query result; unref with <a href="../gobject/gobject-The-Base-Object-Type.html#g-object-unref"><code class="function">g_object_unref()</code></a>. </p>
<p><span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span></p>
</div>
<p class="since">Since: <a class="link" href="ix20.html#api-index-0.15.1">0.15.1</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gdata-freebase-service-query-async"></a><h3>gdata_freebase_service_query_async ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gdata_freebase_service_query_async (<em class="parameter"><code><a class="link" href="GDataFreebaseService.html" title="GDataFreebaseService"><span class="type">GDataFreebaseService</span></a> *self</code></em>,
                                    <em class="parameter"><code><a class="link" href="GDataFreebaseQuery.html" title="GDataFreebaseQuery"><span class="type">GDataFreebaseQuery</span></a> *query</code></em>,
                                    <em class="parameter"><code><span class="type">GCancellable</span> *cancellable</code></em>,
                                    <em class="parameter"><code><span class="type">GAsyncReadyCallback</span> callback</code></em>,
                                    <em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data</code></em>);</pre>
<div class="warning">
<p><code class="literal">gdata_freebase_service_query_async</code> has been deprecated since version 0.17.7 and should not be used in newly-written code.</p>
<p>Google Freebase has been permanently shut down.</p>
</div>
<p>Performs a MQL query on the service. <em class="parameter"><code>self</code></em>
 and <em class="parameter"><code>query</code></em>
 are all reffed when this function is called, so can safely
be unreffed after this function returns. When the query is replied, or fails, <em class="parameter"><code>callback</code></em>
 will be executed, and
the result can be obtained through <a class="link" href="GDataService.html#gdata-service-query-single-entry-finish" title="gdata_service_query_single_entry_finish ()"><code class="function">gdata_service_query_single_entry_finish()</code></a>.</p>
<p>For more details, see <a class="link" href="GDataFreebaseService.html#gdata-freebase-service-query" title="gdata_freebase_service_query ()"><code class="function">gdata_freebase_service_query()</code></a>, which is the synchronous version of
this function.</p>
<div class="refsect3">
<a name="gdata-freebase-service-query-async.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" 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="GDataFreebaseService.html" title="GDataFreebaseService"><span class="type">GDataFreebaseService</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>query</p></td>
<td class="parameter_description"><p>a <a class="link" href="GDataFreebaseQuery.html" title="GDataFreebaseQuery"><span class="type">GDataFreebaseQuery</span></a> with the MQL query</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>cancellable</p></td>
<td class="parameter_description"><p>optional <span class="type">GCancellable</span> object, or <a href="../glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>callback</p></td>
<td class="parameter_description"><p>a <span class="type">GAsyncReadyCallback</span> to call when authentication is finished</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>data to pass to the <em class="parameter"><code>callback</code></em>
function. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="This parameter is a 'user_data', for callbacks; many bindings can pass NULL here."><span class="acronym">closure</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="ix20.html#api-index-0.15.1">0.15.1</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gdata-freebase-service-get-topic"></a><h3>gdata_freebase_service_get_topic ()</h3>
<pre class="programlisting"><a class="link" href="GDataFreebaseTopicResult.html" title="GDataFreebaseTopicResult"><span class="returnvalue">GDataFreebaseTopicResult</span></a> *
gdata_freebase_service_get_topic (<em class="parameter"><code><a class="link" href="GDataFreebaseService.html" title="GDataFreebaseService"><span class="type">GDataFreebaseService</span></a> *self</code></em>,
                                  <em class="parameter"><code><a class="link" href="GDataFreebaseTopicQuery.html" title="GDataFreebaseTopicQuery"><span class="type">GDataFreebaseTopicQuery</span></a> *query</code></em>,
                                  <em class="parameter"><code><span class="type">GCancellable</span> *cancellable</code></em>,
                                  <em class="parameter"><code><a href="../glib/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> **error</code></em>);</pre>
<div class="warning">
<p><code class="literal">gdata_freebase_service_get_topic</code> has been deprecated since version 0.17.7 and should not be used in newly-written code.</p>
<p>Google Freebase has been permanently shut down.</p>
</div>
<p>Queries information about a topic, identified through a Freebase ID. You can find out more about topic queries in the</p>
<a class="ulink" href="https://developers.google.com/freebase/v1/topic-response" target="_top">online documentation</a>.
<div class="refsect3">
<a name="gdata-freebase-service-get-topic.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" 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="GDataFreebaseService.html" title="GDataFreebaseService"><span class="type">GDataFreebaseService</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>query</p></td>
<td class="parameter_description"><p>a <a class="link" href="GDataFreebaseTopicQuery.html" title="GDataFreebaseTopicQuery"><span class="type">GDataFreebaseTopicQuery</span></a> containing the topic ID</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>cancellable</p></td>
<td class="parameter_description"><p>optional <span class="type">GCancellable</span> object, or <a href="../glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>error</p></td>
<td class="parameter_description"><p>a <a href="../glib/glib-Error-Reporting.html#GError"><span class="type">GError</span></a>, or <a href="../glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gdata-freebase-service-get-topic.returns"></a><h4>Returns</h4>
<p>a <a class="link" href="GDataFreebaseTopicResult.html" title="GDataFreebaseTopicResult"><span class="type">GDataFreebaseTopicResult</span></a> containing information about the topic; unref with <a href="../gobject/gobject-The-Base-Object-Type.html#g-object-unref"><code class="function">g_object_unref()</code></a>. </p>
<p><span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span></p>
</div>
<p class="since">Since: <a class="link" href="ix20.html#api-index-0.15.1">0.15.1</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gdata-freebase-service-get-topic-async"></a><h3>gdata_freebase_service_get_topic_async ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gdata_freebase_service_get_topic_async
                               (<em class="parameter"><code><a class="link" href="GDataFreebaseService.html" title="GDataFreebaseService"><span class="type">GDataFreebaseService</span></a> *self</code></em>,
                                <em class="parameter"><code><a class="link" href="GDataFreebaseTopicQuery.html" title="GDataFreebaseTopicQuery"><span class="type">GDataFreebaseTopicQuery</span></a> *query</code></em>,
                                <em class="parameter"><code><span class="type">GCancellable</span> *cancellable</code></em>,
                                <em class="parameter"><code><span class="type">GAsyncReadyCallback</span> callback</code></em>,
                                <em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data</code></em>);</pre>
<div class="warning">
<p><code class="literal">gdata_freebase_service_get_topic_async</code> has been deprecated since version 0.17.7 and should not be used in newly-written code.</p>
<p>Google Freebase has been permanently shut down.</p>
</div>
<p>Queries information about a topic, identified through a Freebase ID. <em class="parameter"><code>self</code></em>
 and <em class="parameter"><code>query</code></em>
 are all reffed when this
function is called, so can safely be unreffed after this function returns. When the query is replied, or fails,
<em class="parameter"><code>callback</code></em>
 will be executed, and the result can be obtained through <a class="link" href="GDataService.html#gdata-service-query-single-entry-finish" title="gdata_service_query_single_entry_finish ()"><code class="function">gdata_service_query_single_entry_finish()</code></a>.</p>
<p>For more details, see <a class="link" href="GDataFreebaseService.html#gdata-freebase-service-get-topic" title="gdata_freebase_service_get_topic ()"><code class="function">gdata_freebase_service_get_topic()</code></a>, which is the synchronous version of
this function.</p>
<div class="refsect3">
<a name="gdata-freebase-service-get-topic-async.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" 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="GDataFreebaseService.html" title="GDataFreebaseService"><span class="type">GDataFreebaseService</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>query</p></td>
<td class="parameter_description"><p>a <a class="link" href="GDataFreebaseQuery.html" title="GDataFreebaseQuery"><span class="type">GDataFreebaseQuery</span></a> with the MQL query</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>cancellable</p></td>
<td class="parameter_description"><p>optional <span class="type">GCancellable</span> object, or <a href="../glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>callback</p></td>
<td class="parameter_description"><p>a <span class="type">GAsyncReadyCallback</span> to call when authentication is finished</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>data to pass to the <em class="parameter"><code>callback</code></em>
function. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="This parameter is a 'user_data', for callbacks; many bindings can pass NULL here."><span class="acronym">closure</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="ix20.html#api-index-0.15.1">0.15.1</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gdata-freebase-service-search"></a><h3>gdata_freebase_service_search ()</h3>
<pre class="programlisting"><a class="link" href="GDataFreebaseSearchResult.html" title="GDataFreebaseSearchResult"><span class="returnvalue">GDataFreebaseSearchResult</span></a> *
gdata_freebase_service_search (<em class="parameter"><code><a class="link" href="GDataFreebaseService.html" title="GDataFreebaseService"><span class="type">GDataFreebaseService</span></a> *self</code></em>,
                               <em class="parameter"><code><a class="link" href="GDataFreebaseSearchQuery.html" title="GDataFreebaseSearchQuery"><span class="type">GDataFreebaseSearchQuery</span></a> *query</code></em>,
                               <em class="parameter"><code><span class="type">GCancellable</span> *cancellable</code></em>,
                               <em class="parameter"><code><a href="../glib/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> **error</code></em>);</pre>
<div class="warning">
<p><code class="literal">gdata_freebase_service_search</code> has been deprecated since version 0.17.7 and should not be used in newly-written code.</p>
<p>Google Freebase has been permanently shut down.</p>
</div>
<p>Performs a search for any given search term, filters can be set on <em class="parameter"><code>query</code></em>
 to narrow down the results. The results returned
are ordered by relevance. You can find out more about topic queries in the</p>
<a class="ulink" href="https://developers.google.com/freebase/v1/search-cookbook" target="_top">online documentation</a>.
<div class="refsect3">
<a name="gdata-freebase-service-search.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" 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="GDataFreebaseService.html" title="GDataFreebaseService"><span class="type">GDataFreebaseService</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>query</p></td>
<td class="parameter_description"><p>a <a class="link" href="GDataFreebaseSearchQuery.html" title="GDataFreebaseSearchQuery"><span class="type">GDataFreebaseSearchQuery</span></a> containing the topic ID</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>cancellable</p></td>
<td class="parameter_description"><p>optional <span class="type">GCancellable</span> object, or <a href="../glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>error</p></td>
<td class="parameter_description"><p>a <a href="../glib/glib-Error-Reporting.html#GError"><span class="type">GError</span></a>, or <a href="../glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gdata-freebase-service-search.returns"></a><h4>Returns</h4>
<p>a <a class="link" href="GDataFreebaseSearchResult.html" title="GDataFreebaseSearchResult"><span class="type">GDataFreebaseSearchResult</span></a> containing the results for the given search query; unref with <a href="../gobject/gobject-The-Base-Object-Type.html#g-object-unref"><code class="function">g_object_unref()</code></a>. </p>
<p><span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span></p>
</div>
<p class="since">Since: <a class="link" href="ix20.html#api-index-0.15.1">0.15.1</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gdata-freebase-service-search-async"></a><h3>gdata_freebase_service_search_async ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gdata_freebase_service_search_async (<em class="parameter"><code><a class="link" href="GDataFreebaseService.html" title="GDataFreebaseService"><span class="type">GDataFreebaseService</span></a> *self</code></em>,
                                     <em class="parameter"><code><a class="link" href="GDataFreebaseSearchQuery.html" title="GDataFreebaseSearchQuery"><span class="type">GDataFreebaseSearchQuery</span></a> *query</code></em>,
                                     <em class="parameter"><code><span class="type">GCancellable</span> *cancellable</code></em>,
                                     <em class="parameter"><code><span class="type">GAsyncReadyCallback</span> callback</code></em>,
                                     <em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data</code></em>);</pre>
<div class="warning">
<p><code class="literal">gdata_freebase_service_search_async</code> has been deprecated since version 0.17.7 and should not be used in newly-written code.</p>
<p>Google Freebase has been permanently shut down.</p>
</div>
<p>Performs a search for any given search term. <em class="parameter"><code>self</code></em>
 and <em class="parameter"><code>query</code></em>
 are all reffed when this
function is called, so can safely be unreffed after this function returns.</p>
<p>For more details, see <a class="link" href="GDataFreebaseService.html#gdata-freebase-service-search" title="gdata_freebase_service_search ()"><code class="function">gdata_freebase_service_search()</code></a>, which is the synchronous version of
this function.</p>
<div class="refsect3">
<a name="gdata-freebase-service-search-async.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" 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="GDataFreebaseService.html" title="GDataFreebaseService"><span class="type">GDataFreebaseService</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>query</p></td>
<td class="parameter_description"><p>a <a class="link" href="GDataFreebaseQuery.html" title="GDataFreebaseQuery"><span class="type">GDataFreebaseQuery</span></a> with the MQL query</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>cancellable</p></td>
<td class="parameter_description"><p>optional <span class="type">GCancellable</span> object, or <a href="../glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>callback</p></td>
<td class="parameter_description"><p>a <span class="type">GAsyncReadyCallback</span> to call when authentication is finished</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>data to pass to the <em class="parameter"><code>callback</code></em>
function. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="This parameter is a 'user_data', for callbacks; many bindings can pass NULL here."><span class="acronym">closure</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="ix20.html#api-index-0.15.1">0.15.1</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gdata-freebase-service-get-image"></a><h3>gdata_freebase_service_get_image ()</h3>
<pre class="programlisting"><span class="returnvalue">GInputStream</span> *
gdata_freebase_service_get_image (<em class="parameter"><code><a class="link" href="GDataFreebaseService.html" title="GDataFreebaseService"><span class="type">GDataFreebaseService</span></a> *self</code></em>,
                                  <em class="parameter"><code><a class="link" href="GDataFreebaseTopicResult.html#GDataFreebaseTopicValue"><span class="type">GDataFreebaseTopicValue</span></a> *value</code></em>,
                                  <em class="parameter"><code><span class="type">GCancellable</span> *cancellable</code></em>,
                                  <em class="parameter"><code><a href="../glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> max_width</code></em>,
                                  <em class="parameter"><code><a href="../glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> max_height</code></em>,
                                  <em class="parameter"><code><a href="../glib/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> **error</code></em>);</pre>
<div class="warning">
<p><code class="literal">gdata_freebase_service_get_image</code> has been deprecated since version 0.17.7 and should not be used in newly-written code.</p>
<p>Google Freebase has been permanently shut down.</p>
</div>
<p>Creates an input stream to an image object returned in a topic query. If <em class="parameter"><code>max_width</code></em>
 and <em class="parameter"><code>max_height</code></em>

are unspecified (i.e. set to 0), the image returned will be the smallest available.</p>
<div class="refsect3">
<a name="gdata-freebase-service-get-image.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" 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="GDataFreebaseService.html" title="GDataFreebaseService"><span class="type">GDataFreebaseService</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>value</p></td>
<td class="parameter_description"><p>a <a class="link" href="GDataFreebaseTopicResult.html#GDataFreebaseTopicValue"><span class="type">GDataFreebaseTopicValue</span></a> from a topic result</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>cancellable</p></td>
<td class="parameter_description"><p>optional <span class="type">GCancellable</span> object, or <a href="../glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>max_width</p></td>
<td class="parameter_description"><p>maximum width of the image returned, or 0</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>max_height</p></td>
<td class="parameter_description"><p>maximum height of the image returned, or 0</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>error</p></td>
<td class="parameter_description"><p>a <a href="../glib/glib-Error-Reporting.html#GError"><span class="type">GError</span></a>, or <a href="../glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gdata-freebase-service-get-image.returns"></a><h4>Returns</h4>
<p>a <span class="type">GInputStream</span> opened to the image; unref with <a href="../gobject/gobject-The-Base-Object-Type.html#g-object-unref"><code class="function">g_object_unref()</code></a>. </p>
<p><span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span></p>
</div>
<p class="since">Since: <a class="link" href="ix20.html#api-index-0.15.1">0.15.1</a></p>
</div>
</div>
<div class="refsect1">
<a name="GDataFreebaseService.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="GDataFreebaseService-struct"></a><h3>GDataFreebaseService</h3>
<pre class="programlisting">typedef struct _GDataFreebaseService GDataFreebaseService;</pre>
<div class="warning"><p><code class="literal">GDataFreebaseService</code> is deprecated and should not be used in newly-written code.</p></div>
<p>All the fields in the <a class="link" href="GDataFreebaseService.html" title="GDataFreebaseService"><span class="type">GDataFreebaseService</span></a> structure are private and should never be accessed directly.</p>
<p class="since">Since: <a class="link" href="ix20.html#api-index-0.15.1">0.15.1</a></p>
</div>
<hr>
<div class="refsect2">
<a name="GDataFreebaseServiceClass"></a><h3>GDataFreebaseServiceClass</h3>
<pre class="programlisting">typedef struct {
} GDataFreebaseServiceClass;
</pre>
<div class="warning"><p><code class="literal">GDataFreebaseServiceClass</code> is deprecated and should not be used in newly-written code.</p></div>
<p>All the fields in the <a class="link" href="GDataFreebaseService.html#GDataFreebaseServiceClass" title="GDataFreebaseServiceClass"><span class="type">GDataFreebaseServiceClass</span></a> structure are private and should never be accessed directly.</p>
<p class="since">Since: <a class="link" href="ix20.html#api-index-0.15.1">0.15.1</a></p>
</div>
</div>
<div class="refsect1">
<a name="GDataFreebaseService.property-details"></a><h2>Property Details</h2>
<div class="refsect2">
<a name="GDataFreebaseService--developer-key"></a><h3>The <code class="literal">“developer-key”</code> property</h3>
<pre class="programlisting">  “developer-key”            <a href="../glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *</pre>
<p>The developer key your application has registered with the Freebase API. For more information, see the <a class="ulink" href="https://developers.google.com/freebase/v1/how-tos/authorizing" target="_top">online documentation</a>.</p>
<div class="warning">
<p><code class="literal">GDataFreebaseService:developer-key</code> has been deprecated since version 0.17.7 and should not be used in newly-written code.</p>
<p>Google Freebase has been permanently shut down.</p>
</div>
<p>Flags: Read / Write / Construct Only</p>
<p>Default value: NULL</p>
<p class="since">Since: <a class="link" href="ix20.html#api-index-0.15.1">0.15.1</a></p>
</div>
</div>
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