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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>GTypePlugin: GObject Reference Manual</title> <meta name="generator" content="DocBook XSL Stylesheets V1.79.1"> <link rel="home" href="index.html" title="GObject Reference Manual"> <link rel="up" href="rn01.html" title="API Reference"> <link rel="prev" href="gobject-Type-Information.html" title="Type Information"> <link rel="next" href="GTypeModule.html" title="GTypeModule"> <meta name="generator" content="GTK-Doc V1.32 (XML mode)"> <link rel="stylesheet" href="style.css" type="text/css"> </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="#GTypePlugin.description" class="shortcut">Description</a></span><span id="nav_hierarchy"> <span class="dim">|</span> <a href="#GTypePlugin.object-hierarchy" class="shortcut">Object Hierarchy</a></span><span id="nav_implementations"> <span class="dim">|</span> <a href="#GTypePlugin.implementations" class="shortcut">Known Implementations</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="rn01.html"><img src="up.png" width="16" height="16" border="0" alt="Up"></a></td> <td><a accesskey="p" href="gobject-Type-Information.html"><img src="left.png" width="16" height="16" border="0" alt="Prev"></a></td> <td><a accesskey="n" href="GTypeModule.html"><img src="right.png" width="16" height="16" border="0" alt="Next"></a></td> </tr></table> <div class="refentry"> <a name="GTypePlugin"></a><div class="titlepage"></div> <div class="refnamediv"><table width="100%"><tr> <td valign="top"> <h2><span class="refentrytitle"><a name="GTypePlugin.top_of_page"></a>GTypePlugin</span></h2> <p>GTypePlugin — An interface for dynamically loadable types</p> </td> <td class="gallery_image" valign="top" align="right"></td> </tr></table></div> <div class="refsect1"> <a name="GTypePlugin.functions"></a><h2>Functions</h2> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="functions_proto_type"> <col class="functions_proto_name"> </colgroup> <tbody> <tr> <td class="function_type"> <span class="returnvalue">void</span> </td> <td class="function_name"> <span class="c_punctuation">(</span><a class="link" href="GTypePlugin.html#GTypePluginUse" title="GTypePluginUse ()">*GTypePluginUse</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <span class="returnvalue">void</span> </td> <td class="function_name"> <span class="c_punctuation">(</span><a class="link" href="GTypePlugin.html#GTypePluginUnuse" title="GTypePluginUnuse ()">*GTypePluginUnuse</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <span class="returnvalue">void</span> </td> <td class="function_name"> <span class="c_punctuation">(</span><a class="link" href="GTypePlugin.html#GTypePluginCompleteTypeInfo" title="GTypePluginCompleteTypeInfo ()">*GTypePluginCompleteTypeInfo</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <span class="returnvalue">void</span> </td> <td class="function_name"> <span class="c_punctuation">(</span><a class="link" href="GTypePlugin.html#GTypePluginCompleteInterfaceInfo" title="GTypePluginCompleteInterfaceInfo ()">*GTypePluginCompleteInterfaceInfo</a><span class="c_punctuation">)</span> <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="GTypePlugin.html#g-type-plugin-use" title="g_type_plugin_use ()">g_type_plugin_use</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="GTypePlugin.html#g-type-plugin-unuse" title="g_type_plugin_unuse ()">g_type_plugin_unuse</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="GTypePlugin.html#g-type-plugin-complete-type-info" title="g_type_plugin_complete_type_info ()">g_type_plugin_complete_type_info</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="GTypePlugin.html#g-type-plugin-complete-interface-info" title="g_type_plugin_complete_interface_info ()">g_type_plugin_complete_interface_info</a> <span class="c_punctuation">()</span> </td> </tr> </tbody> </table></div> </div> <div class="refsect1"> <a name="GTypePlugin.other"></a><h2>Types and Values</h2> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="other_proto_type"> <col class="other_proto_name"> </colgroup> <tbody> <tr> <td class="datatype_keyword"> </td> <td class="function_name"><a class="link" href="GTypePlugin.html#GTypePlugin-struct" title="GTypePlugin">GTypePlugin</a></td> </tr> <tr> <td class="datatype_keyword">struct</td> <td class="function_name"><a class="link" href="GTypePlugin.html#GTypePluginClass" title="struct GTypePluginClass">GTypePluginClass</a></td> </tr> </tbody> </table></div> </div> <div class="refsect1"> <a name="GTypePlugin.object-hierarchy"></a><h2>Object Hierarchy</h2> <pre class="screen"> GInterface <span class="lineart">╰──</span> GTypePlugin </pre> </div> <div class="refsect1"> <a name="GTypePlugin.implementations"></a><h2>Known Implementations</h2> <p> GTypePlugin is implemented by <a class="link" href="GTypeModule.html" title="GTypeModule">GTypeModule</a>.</p> </div> <div class="refsect1"> <a name="GTypePlugin.includes"></a><h2>Includes</h2> <pre class="synopsis">#include <glib-object.h> </pre> </div> <div class="refsect1"> <a name="GTypePlugin.description"></a><h2>Description</h2> <p>The GObject type system supports dynamic loading of types. The <a class="link" href="GTypePlugin.html" title="GTypePlugin"><span class="type">GTypePlugin</span></a> interface is used to handle the lifecycle of dynamically loaded types. It goes as follows:</p> <div class="orderedlist"><ol class="orderedlist" type="1"> <li class="listitem"> <p>The type is initially introduced (usually upon loading the module the first time, or by your main application that knows what modules introduces what types), like this:</p> <div class="informalexample"> <table class="listing_frame" border="0" cellpadding="0" cellspacing="0"> <tbody> <tr> <td class="listing_lines" align="right"><pre>1 2 3 4</pre></td> <td class="listing_code"><pre class="programlisting"><span class="n">new_type_id</span> <span class="o">=</span> <span class="n">g_type_register_dynamic</span> <span class="p">(</span><span class="n">parent_type_id</span><span class="p">,</span> <span class="s">"TypeName"</span><span class="p">,</span> <span class="n">new_type_plugin</span><span class="p">,</span> <span class="n">type_flags</span><span class="p">);</span></pre></td> </tr> </tbody> </table> </div> <p> where <em class="parameter"><code>new_type_plugin</code></em> is an implementation of the <a class="link" href="GTypePlugin.html" title="GTypePlugin"><span class="type">GTypePlugin</span></a> interface.</p> </li> <li class="listitem"><p>The type's implementation is referenced, e.g. through <a class="link" href="gobject-Type-Information.html#g-type-class-ref" title="g_type_class_ref ()"><code class="function">g_type_class_ref()</code></a> or through <a class="link" href="gobject-Type-Information.html#g-type-create-instance" title="g_type_create_instance ()"><code class="function">g_type_create_instance()</code></a> (this is being called by <a class="link" href="gobject-The-Base-Object-Type.html#g-object-new" title="g_object_new ()"><code class="function">g_object_new()</code></a>) or through one of the above done on a type derived from <em class="parameter"><code>new_type_id</code></em> .</p></li> <li class="listitem"><p>This causes the type system to load the type's implementation by calling <a class="link" href="GTypePlugin.html#g-type-plugin-use" title="g_type_plugin_use ()"><code class="function">g_type_plugin_use()</code></a> and <a class="link" href="GTypePlugin.html#g-type-plugin-complete-type-info" title="g_type_plugin_complete_type_info ()"><code class="function">g_type_plugin_complete_type_info()</code></a> on <em class="parameter"><code>new_type_plugin</code></em> .</p></li> <li class="listitem"><p>At some point the type's implementation isn't required anymore, e.g. after <a class="link" href="gobject-Type-Information.html#g-type-class-unref" title="g_type_class_unref ()"><code class="function">g_type_class_unref()</code></a> or <a class="link" href="gobject-Type-Information.html#g-type-free-instance" title="g_type_free_instance ()"><code class="function">g_type_free_instance()</code></a> (called when the reference count of an instance drops to zero).</p></li> <li class="listitem"><p>This causes the type system to throw away the information retrieved from <a class="link" href="GTypePlugin.html#g-type-plugin-complete-type-info" title="g_type_plugin_complete_type_info ()"><code class="function">g_type_plugin_complete_type_info()</code></a> and then it calls <a class="link" href="GTypePlugin.html#g-type-plugin-unuse" title="g_type_plugin_unuse ()"><code class="function">g_type_plugin_unuse()</code></a> on <em class="parameter"><code>new_type_plugin</code></em> .</p></li> <li class="listitem"><p>Things may repeat from the second step.</p></li> </ol></div> <p>So basically, you need to implement a <a class="link" href="GTypePlugin.html" title="GTypePlugin"><span class="type">GTypePlugin</span></a> type that carries a use_count, once use_count goes from zero to one, you need to load the implementation to successfully handle the upcoming <a class="link" href="GTypePlugin.html#g-type-plugin-complete-type-info" title="g_type_plugin_complete_type_info ()"><code class="function">g_type_plugin_complete_type_info()</code></a> call. Later, maybe after succeeding use/unuse calls, once use_count drops to zero, you can unload the implementation again. The type system makes sure to call <a class="link" href="GTypePlugin.html#g-type-plugin-use" title="g_type_plugin_use ()"><code class="function">g_type_plugin_use()</code></a> and <a class="link" href="GTypePlugin.html#g-type-plugin-complete-type-info" title="g_type_plugin_complete_type_info ()"><code class="function">g_type_plugin_complete_type_info()</code></a> again when the type is needed again.</p> <p><a class="link" href="GTypeModule.html" title="GTypeModule"><span class="type">GTypeModule</span></a> is an implementation of <a class="link" href="GTypePlugin.html" title="GTypePlugin"><span class="type">GTypePlugin</span></a> that already implements most of this except for the actual module loading and unloading. It even handles multiple registered types per module.</p> </div> <div class="refsect1"> <a name="GTypePlugin.functions_details"></a><h2>Functions</h2> <div class="refsect2"> <a name="GTypePluginUse"></a><h3>GTypePluginUse ()</h3> <pre class="programlisting"><span class="returnvalue">void</span> <span class="c_punctuation">(</span>*GTypePluginUse<span class="c_punctuation">)</span> (<em class="parameter"><code><a class="link" href="GTypePlugin.html" title="GTypePlugin"><span class="type">GTypePlugin</span></a> *plugin</code></em>);</pre> <p>The type of the <em class="parameter"><code>use_plugin</code></em> function of <a class="link" href="GTypePlugin.html#GTypePluginClass" title="struct GTypePluginClass"><span class="type">GTypePluginClass</span></a>, which gets called to increase the use count of <em class="parameter"><code>plugin</code></em> .</p> <div class="refsect3"> <a name="GTypePluginUse.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>plugin</p></td> <td class="parameter_description"><p>the <a class="link" href="GTypePlugin.html" title="GTypePlugin"><span class="type">GTypePlugin</span></a> whose use count should be increased</p></td> <td class="parameter_annotations"> </td> </tr></tbody> </table></div> </div> </div> <hr> <div class="refsect2"> <a name="GTypePluginUnuse"></a><h3>GTypePluginUnuse ()</h3> <pre class="programlisting"><span class="returnvalue">void</span> <span class="c_punctuation">(</span>*GTypePluginUnuse<span class="c_punctuation">)</span> (<em class="parameter"><code><a class="link" href="GTypePlugin.html" title="GTypePlugin"><span class="type">GTypePlugin</span></a> *plugin</code></em>);</pre> <p>The type of the <em class="parameter"><code>unuse_plugin</code></em> function of <a class="link" href="GTypePlugin.html#GTypePluginClass" title="struct GTypePluginClass"><span class="type">GTypePluginClass</span></a>.</p> <div class="refsect3"> <a name="GTypePluginUnuse.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>plugin</p></td> <td class="parameter_description"><p>the <a class="link" href="GTypePlugin.html" title="GTypePlugin"><span class="type">GTypePlugin</span></a> whose use count should be decreased</p></td> <td class="parameter_annotations"> </td> </tr></tbody> </table></div> </div> </div> <hr> <div class="refsect2"> <a name="GTypePluginCompleteTypeInfo"></a><h3>GTypePluginCompleteTypeInfo ()</h3> <pre class="programlisting"><span class="returnvalue">void</span> <span class="c_punctuation">(</span>*GTypePluginCompleteTypeInfo<span class="c_punctuation">)</span> (<em class="parameter"><code><a class="link" href="GTypePlugin.html" title="GTypePlugin"><span class="type">GTypePlugin</span></a> *plugin</code></em>, <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GType"><span class="type">GType</span></a> g_type</code></em>, <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GTypeInfo" title="struct GTypeInfo"><span class="type">GTypeInfo</span></a> *info</code></em>, <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GTypeValueTable" title="struct GTypeValueTable"><span class="type">GTypeValueTable</span></a> *value_table</code></em>);</pre> <p>The type of the <em class="parameter"><code>complete_type_info</code></em> function of <a class="link" href="GTypePlugin.html#GTypePluginClass" title="struct GTypePluginClass"><span class="type">GTypePluginClass</span></a>.</p> <div class="refsect3"> <a name="GTypePluginCompleteTypeInfo.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>plugin</p></td> <td class="parameter_description"><p>the <a class="link" href="GTypePlugin.html" title="GTypePlugin"><span class="type">GTypePlugin</span></a></p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>g_type</p></td> <td class="parameter_description"><p>the <a class="link" href="gobject-Type-Information.html#GType"><span class="type">GType</span></a> whose info is completed</p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>info</p></td> <td class="parameter_description"><p>the <a class="link" href="gobject-Type-Information.html#GTypeInfo" title="struct GTypeInfo"><span class="type">GTypeInfo</span></a> struct to fill in</p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>value_table</p></td> <td class="parameter_description"><p>the <a class="link" href="gobject-Type-Information.html#GTypeValueTable" title="struct GTypeValueTable"><span class="type">GTypeValueTable</span></a> to fill in</p></td> <td class="parameter_annotations"> </td> </tr> </tbody> </table></div> </div> </div> <hr> <div class="refsect2"> <a name="GTypePluginCompleteInterfaceInfo"></a><h3>GTypePluginCompleteInterfaceInfo ()</h3> <pre class="programlisting"><span class="returnvalue">void</span> <span class="c_punctuation">(</span>*GTypePluginCompleteInterfaceInfo<span class="c_punctuation">)</span> (<em class="parameter"><code><a class="link" href="GTypePlugin.html" title="GTypePlugin"><span class="type">GTypePlugin</span></a> *plugin</code></em>, <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GType"><span class="type">GType</span></a> instance_type</code></em>, <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GType"><span class="type">GType</span></a> interface_type</code></em>, <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GInterfaceInfo" title="struct GInterfaceInfo"><span class="type">GInterfaceInfo</span></a> *info</code></em>);</pre> <p>The type of the <em class="parameter"><code>complete_interface_info</code></em> function of <a class="link" href="GTypePlugin.html#GTypePluginClass" title="struct GTypePluginClass"><span class="type">GTypePluginClass</span></a>.</p> <div class="refsect3"> <a name="GTypePluginCompleteInterfaceInfo.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>plugin</p></td> <td class="parameter_description"><p>the <a class="link" href="GTypePlugin.html" title="GTypePlugin"><span class="type">GTypePlugin</span></a></p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>instance_type</p></td> <td class="parameter_description"><p>the <a class="link" href="gobject-Type-Information.html#GType"><span class="type">GType</span></a> of an instantiable type to which the interface is added</p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>interface_type</p></td> <td class="parameter_description"><p>the <a class="link" href="gobject-Type-Information.html#GType"><span class="type">GType</span></a> of the interface whose info is completed</p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>info</p></td> <td class="parameter_description"><p>the <a class="link" href="gobject-Type-Information.html#GInterfaceInfo" title="struct GInterfaceInfo"><span class="type">GInterfaceInfo</span></a> to fill in</p></td> <td class="parameter_annotations"> </td> </tr> </tbody> </table></div> </div> </div> <hr> <div class="refsect2"> <a name="g-type-plugin-use"></a><h3>g_type_plugin_use ()</h3> <pre class="programlisting"><span class="returnvalue">void</span> g_type_plugin_use (<em class="parameter"><code><a class="link" href="GTypePlugin.html" title="GTypePlugin"><span class="type">GTypePlugin</span></a> *plugin</code></em>);</pre> <p>Calls the <em class="parameter"><code>use_plugin</code></em> function from the <a class="link" href="GTypePlugin.html#GTypePluginClass" title="struct GTypePluginClass"><span class="type">GTypePluginClass</span></a> of <em class="parameter"><code>plugin</code></em> . There should be no need to use this function outside of the GObject type system itself.</p> <div class="refsect3"> <a name="g-type-plugin-use.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>plugin</p></td> <td class="parameter_description"><p>a <a class="link" href="GTypePlugin.html" title="GTypePlugin"><span class="type">GTypePlugin</span></a></p></td> <td class="parameter_annotations"> </td> </tr></tbody> </table></div> </div> </div> <hr> <div class="refsect2"> <a name="g-type-plugin-unuse"></a><h3>g_type_plugin_unuse ()</h3> <pre class="programlisting"><span class="returnvalue">void</span> g_type_plugin_unuse (<em class="parameter"><code><a class="link" href="GTypePlugin.html" title="GTypePlugin"><span class="type">GTypePlugin</span></a> *plugin</code></em>);</pre> <p>Calls the <em class="parameter"><code>unuse_plugin</code></em> function from the <a class="link" href="GTypePlugin.html#GTypePluginClass" title="struct GTypePluginClass"><span class="type">GTypePluginClass</span></a> of <em class="parameter"><code>plugin</code></em> . There should be no need to use this function outside of the GObject type system itself.</p> <div class="refsect3"> <a name="g-type-plugin-unuse.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>plugin</p></td> <td class="parameter_description"><p>a <a class="link" href="GTypePlugin.html" title="GTypePlugin"><span class="type">GTypePlugin</span></a></p></td> <td class="parameter_annotations"> </td> </tr></tbody> </table></div> </div> </div> <hr> <div class="refsect2"> <a name="g-type-plugin-complete-type-info"></a><h3>g_type_plugin_complete_type_info ()</h3> <pre class="programlisting"><span class="returnvalue">void</span> g_type_plugin_complete_type_info (<em class="parameter"><code><a class="link" href="GTypePlugin.html" title="GTypePlugin"><span class="type">GTypePlugin</span></a> *plugin</code></em>, <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GType"><span class="type">GType</span></a> g_type</code></em>, <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GTypeInfo" title="struct GTypeInfo"><span class="type">GTypeInfo</span></a> *info</code></em>, <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GTypeValueTable" title="struct GTypeValueTable"><span class="type">GTypeValueTable</span></a> *value_table</code></em>);</pre> <p>Calls the <em class="parameter"><code>complete_type_info</code></em> function from the <a class="link" href="GTypePlugin.html#GTypePluginClass" title="struct GTypePluginClass"><span class="type">GTypePluginClass</span></a> of <em class="parameter"><code>plugin</code></em> . There should be no need to use this function outside of the GObject type system itself.</p> <div class="refsect3"> <a name="g-type-plugin-complete-type-info.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>plugin</p></td> <td class="parameter_description"><p>a <a class="link" href="GTypePlugin.html" title="GTypePlugin"><span class="type">GTypePlugin</span></a></p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>g_type</p></td> <td class="parameter_description"><p>the <a class="link" href="gobject-Type-Information.html#GType"><span class="type">GType</span></a> whose info is completed</p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>info</p></td> <td class="parameter_description"><p>the <a class="link" href="gobject-Type-Information.html#GTypeInfo" title="struct GTypeInfo"><span class="type">GTypeInfo</span></a> struct to fill in</p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>value_table</p></td> <td class="parameter_description"><p>the <a class="link" href="gobject-Type-Information.html#GTypeValueTable" title="struct GTypeValueTable"><span class="type">GTypeValueTable</span></a> to fill in</p></td> <td class="parameter_annotations"> </td> </tr> </tbody> </table></div> </div> </div> <hr> <div class="refsect2"> <a name="g-type-plugin-complete-interface-info"></a><h3>g_type_plugin_complete_interface_info ()</h3> <pre class="programlisting"><span class="returnvalue">void</span> g_type_plugin_complete_interface_info (<em class="parameter"><code><a class="link" href="GTypePlugin.html" title="GTypePlugin"><span class="type">GTypePlugin</span></a> *plugin</code></em>, <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GType"><span class="type">GType</span></a> instance_type</code></em>, <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GType"><span class="type">GType</span></a> interface_type</code></em>, <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GInterfaceInfo" title="struct GInterfaceInfo"><span class="type">GInterfaceInfo</span></a> *info</code></em>);</pre> <p>Calls the <em class="parameter"><code>complete_interface_info</code></em> function from the <a class="link" href="GTypePlugin.html#GTypePluginClass" title="struct GTypePluginClass"><span class="type">GTypePluginClass</span></a> of <em class="parameter"><code>plugin</code></em> . There should be no need to use this function outside of the GObject type system itself.</p> <div class="refsect3"> <a name="g-type-plugin-complete-interface-info.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>plugin</p></td> <td class="parameter_description"><p>the <a class="link" href="GTypePlugin.html" title="GTypePlugin"><span class="type">GTypePlugin</span></a></p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>instance_type</p></td> <td class="parameter_description"><p>the <a class="link" href="gobject-Type-Information.html#GType"><span class="type">GType</span></a> of an instantiable type to which the interface is added</p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>interface_type</p></td> <td class="parameter_description"><p>the <a class="link" href="gobject-Type-Information.html#GType"><span class="type">GType</span></a> of the interface whose info is completed</p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>info</p></td> <td class="parameter_description"><p>the <a class="link" href="gobject-Type-Information.html#GInterfaceInfo" title="struct GInterfaceInfo"><span class="type">GInterfaceInfo</span></a> to fill in</p></td> <td class="parameter_annotations"> </td> </tr> </tbody> </table></div> </div> </div> </div> <div class="refsect1"> <a name="GTypePlugin.other_details"></a><h2>Types and Values</h2> <div class="refsect2"> <a name="GTypePlugin-struct"></a><h3>GTypePlugin</h3> <pre class="programlisting">typedef struct _GTypePlugin GTypePlugin;</pre> <p>The GTypePlugin typedef is used as a placeholder for objects that implement the GTypePlugin interface.</p> </div> <hr> <div class="refsect2"> <a name="GTypePluginClass"></a><h3>struct GTypePluginClass</h3> <pre class="programlisting">struct GTypePluginClass { GTypePluginUse use_plugin; GTypePluginUnuse unuse_plugin; GTypePluginCompleteTypeInfo complete_type_info; GTypePluginCompleteInterfaceInfo complete_interface_info; }; </pre> <p>The <a class="link" href="GTypePlugin.html" title="GTypePlugin"><span class="type">GTypePlugin</span></a> interface is used by the type system in order to handle the lifecycle of dynamically loaded types.</p> <div class="refsect3"> <a name="GTypePluginClass.members"></a><h4>Members</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="300px" class="struct_members_name"> <col class="struct_members_description"> <col width="200px" class="struct_members_annotations"> </colgroup> <tbody> <tr> <td class="struct_member_name"><p><a class="link" href="GTypePlugin.html#GTypePluginUse" title="GTypePluginUse ()"><span class="type">GTypePluginUse</span></a> <em class="structfield"><code><a name="GTypePluginClass.use-plugin"></a>use_plugin</code></em>;</p></td> <td class="struct_member_description"><p>Increases the use count of the plugin.</p></td> <td class="struct_member_annotations"> </td> </tr> <tr> <td class="struct_member_name"><p><a class="link" href="GTypePlugin.html#GTypePluginUnuse" title="GTypePluginUnuse ()"><span class="type">GTypePluginUnuse</span></a> <em class="structfield"><code><a name="GTypePluginClass.unuse-plugin"></a>unuse_plugin</code></em>;</p></td> <td class="struct_member_description"><p>Decreases the use count of the plugin.</p></td> <td class="struct_member_annotations"> </td> </tr> <tr> <td class="struct_member_name"><p><a class="link" href="GTypePlugin.html#GTypePluginCompleteTypeInfo" title="GTypePluginCompleteTypeInfo ()"><span class="type">GTypePluginCompleteTypeInfo</span></a> <em class="structfield"><code><a name="GTypePluginClass.complete-type-info"></a>complete_type_info</code></em>;</p></td> <td class="struct_member_description"><p>Fills in the <a class="link" href="gobject-Type-Information.html#GTypeInfo" title="struct GTypeInfo"><span class="type">GTypeInfo</span></a> and <a class="link" href="gobject-Type-Information.html#GTypeValueTable" title="struct GTypeValueTable"><span class="type">GTypeValueTable</span></a> structs for the type. The structs are initialized with <code class="literal">memset(s, 0, sizeof (s))</code> before calling this function.</p></td> <td class="struct_member_annotations"> </td> </tr> <tr> <td class="struct_member_name"><p><a class="link" href="GTypePlugin.html#GTypePluginCompleteInterfaceInfo" title="GTypePluginCompleteInterfaceInfo ()"><span class="type">GTypePluginCompleteInterfaceInfo</span></a> <em class="structfield"><code><a name="GTypePluginClass.complete-interface-info"></a>complete_interface_info</code></em>;</p></td> <td class="struct_member_description"><p>Fills in missing parts of the <a class="link" href="gobject-Type-Information.html#GInterfaceInfo" title="struct GInterfaceInfo"><span class="type">GInterfaceInfo</span></a> for the interface. The structs is initialized with <code class="literal">memset(s, 0, sizeof (s))</code> before calling this function.</p></td> <td class="struct_member_annotations"> </td> </tr> </tbody> </table></div> </div> </div> </div> <div class="refsect1"> <a name="GTypePlugin.see-also"></a><h2>See Also</h2> <p><a class="link" href="GTypeModule.html" title="GTypeModule"><span class="type">GTypeModule</span></a> and <a class="link" href="gobject-Type-Information.html#g-type-register-dynamic" title="g_type_register_dynamic ()"><code class="function">g_type_register_dynamic()</code></a>.</p> </div> </div> <div class="footer"> <hr>Generated by GTK-Doc V1.32</div> </body> </html>