libges-1.0-doc 1.6.2-1 / usr / share / gtk-doc / html / ges-1.0 / GESTrackElement.html

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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>GESTrackElement: GStreamer Editing Services 1.6.2 Reference Manual</title>
<meta name="generator" content="DocBook XSL Stylesheets V1.78.1">
<link rel="home" href="index.html" title="GStreamer Editing Services 1.6.2 Reference Manual">
<link rel="up" href="ch02.html" title="Base Classes">
<link rel="prev" href="GESTrack.html" title="GESTrack">
<link rel="next" href="GESSource.html" title="GESSource">
<meta name="generator" content="GTK-Doc V1.24 (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="#GESTrackElement.description" class="shortcut">Description</a></span><span id="nav_hierarchy">  <span class="dim">|</span> 
                  <a href="#GESTrackElement.object-hierarchy" class="shortcut">Object Hierarchy</a></span><span id="nav_interfaces">  <span class="dim">|</span> 
                  <a href="#GESTrackElement.implemented-interfaces" class="shortcut">Implemented Interfaces</a></span><span id="nav_properties">  <span class="dim">|</span> 
                  <a href="#GESTrackElement.properties" class="shortcut">Properties</a></span><span id="nav_signals">  <span class="dim">|</span> 
                  <a href="#GESTrackElement.signals" class="shortcut">Signals</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="ch02.html"><img src="up.png" width="16" height="16" border="0" alt="Up"></a></td>
<td><a accesskey="p" href="GESTrack.html"><img src="left.png" width="16" height="16" border="0" alt="Prev"></a></td>
<td><a accesskey="n" href="GESSource.html"><img src="right.png" width="16" height="16" border="0" alt="Next"></a></td>
</tr></table>
<div class="refentry">
<a name="GESTrackElement"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="GESTrackElement.top_of_page"></a>GESTrackElement</span></h2>
<p>GESTrackElement — Base Class for objects contained in a GESTrack</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="GESTrackElement.functions"></a><h2>Functions</h2>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="functions_return">
<col class="functions_name">
</colgroup>
<tbody>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="GESTrackElement.html#ges-track-element-set-active" title="ges_track_element_set_active ()">ges_track_element_set_active</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="GESTrack.html" title="GESTrack"><span class="returnvalue">GESTrack</span></a> *
</td>
<td class="function_name">
<a class="link" href="GESTrackElement.html#ges-track-element-get-track" title="ges_track_element_get_track ()">ges_track_element_get_track</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstElement.html"><span class="returnvalue">GstElement</span></a> *
</td>
<td class="function_name">
<a class="link" href="GESTrackElement.html#ges-track-element-get-nleobject" title="ges_track_element_get_nleobject ()">ges_track_element_get_nleobject</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstElement.html"><span class="returnvalue">GstElement</span></a> *
</td>
<td class="function_name">
<a class="link" href="GESTrackElement.html#ges-track-element-get-gnlobject" title="ges_track_element_get_gnlobject ()">ges_track_element_get_gnlobject</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstElement.html"><span class="returnvalue">GstElement</span></a> *
</td>
<td class="function_name">
<a class="link" href="GESTrackElement.html#ges-track-element-get-element" title="ges_track_element_get_element ()">ges_track_element_get_element</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="GESTrackElement.html#ges-track-element-is-active" title="ges_track_element_is_active ()">ges_track_element_is_active</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="GESTrackElement.html#ges-track-element-lookup-child" title="ges_track_element_lookup_child ()">ges_track_element_lookup_child</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/gobject/gobject-GParamSpec.html#GParamSpec"><span class="returnvalue">GParamSpec</span></a> **
</td>
<td class="function_name">
<a class="link" href="GESTrackElement.html#ges-track-element-list-children-properties" title="ges_track_element_list_children_properties ()">ges_track_element_list_children_properties</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="GESTrackElement.html#ges-track-element-set-child-property" title="ges_track_element_set_child_property ()">ges_track_element_set_child_property</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="GESTrackElement.html#ges-track-element-set-child-properties" title="ges_track_element_set_child_properties ()">ges_track_element_set_child_properties</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="GESTrackElement.html#ges-track-element-set-child-property-valist" title="ges_track_element_set_child_property_valist ()">ges_track_element_set_child_property_valist</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="GESTrackElement.html#ges-track-element-set-child-property-by-pspec" title="ges_track_element_set_child_property_by_pspec ()">ges_track_element_set_child_property_by_pspec</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="GESTrackElement.html#ges-track-element-get-child-property" title="ges_track_element_get_child_property ()">ges_track_element_get_child_property</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="GESTrackElement.html#ges-track-element-get-child-properties" title="ges_track_element_get_child_properties ()">ges_track_element_get_child_properties</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="GESTrackElement.html#ges-track-element-get-child-property-valist" title="ges_track_element_get_child_property_valist ()">ges_track_element_get_child_property_valist</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="GESTrackElement.html#ges-track-element-get-child-property-by-pspec" title="ges_track_element_get_child_property_by_pspec ()">ges_track_element_get_child_property_by_pspec</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="GESTrackElement.html#ges-track-element-edit" title="ges_track_element_edit ()">ges_track_element_edit</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="GESTrackElement.html#ges-track-element-set-control-source" title="ges_track_element_set_control_source ()">ges_track_element_set_control_source</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstControlBinding.html"><span class="returnvalue">GstControlBinding</span></a> *
</td>
<td class="function_name">
<a class="link" href="GESTrackElement.html#ges-track-element-get-control-binding" title="ges_track_element_get_control_binding ()">ges_track_element_get_control_binding</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Hash-Tables.html#GHashTable"><span class="returnvalue">GHashTable</span></a> *
</td>
<td class="function_name">
<a class="link" href="GESTrackElement.html#ges-track-element-get-all-control-bindings" title="ges_track_element_get_all_control_bindings ()">ges_track_element_get_all_control_bindings</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="GESTrackElement.html#ges-track-element-remove-control-binding" title="ges_track_element_remove_control_binding ()">ges_track_element_remove_control_binding</a> <span class="c_punctuation">()</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="GESTrackElement.properties"></a><h2>Properties</h2>
<div class="informaltable"><table 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="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></td>
<td class="property_name"><a class="link" href="GESTrackElement.html#GESTrackElement--active" title="The “active” property">active</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type">
<a class="link" href="GESTrack.html" title="GESTrack"><span class="type">GESTrack</span></a> *</td>
<td class="property_name"><a class="link" href="GESTrackElement.html#GESTrackElement--track" title="The “track” property">track</a></td>
<td class="property_flags">Read</td>
</tr>
<tr>
<td class="property_type"><a class="link" href="ges-GES-Enums.html#GESTrackType" title="enum GESTrackType"><span class="type">GESTrackType</span></a></td>
<td class="property_name"><a class="link" href="GESTrackElement.html#GESTrackElement--track-type" title="The “track-type” property">track-type</a></td>
<td class="property_flags">Read / Write / Construct</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="GESTrackElement.signals"></a><h2>Signals</h2>
<div class="informaltable"><table border="0">
<colgroup>
<col width="150px" class="signals_return">
<col width="300px" class="signals_name">
<col width="200px" class="signals_flags">
</colgroup>
<tbody>
<tr>
<td class="signal_type"><span class="returnvalue">void</span></td>
<td class="signal_name"><a class="link" href="GESTrackElement.html#GESTrackElement-control-binding-added" title="The “control-binding-added” signal">control-binding-added</a></td>
<td class="signal_flags"><a href="/usr/share/gtk-doc/html/gobject/gobject-Signals.html#G-SIGNAL-RUN-FIRST:CAPS">Run First</a></td>
</tr>
<tr>
<td class="signal_type"><span class="returnvalue">void</span></td>
<td class="signal_name"><a class="link" href="GESTrackElement.html#GESTrackElement-control-binding-reomved" title="The “control-binding-reomved” signal">control-binding-reomved</a></td>
<td class="signal_flags"><a href="/usr/share/gtk-doc/html/gobject/gobject-Signals.html#G-SIGNAL-RUN-FIRST:CAPS">Run First</a></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="GESTrackElement.other"></a><h2>Types and Values</h2>
<div class="informaltable"><table 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="GESTrackElement.html#GESTrackElement-struct" title="GESTrackElement">GESTrackElement</a></td>
</tr>
<tr>
<td class="datatype_keyword"> </td>
<td class="function_name"><a class="link" href="GESTrackElement.html#GESTrackElementClass" title="GESTrackElementClass">GESTrackElementClass</a></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="GESTrackElement.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="screen">    <a href="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GObject">GObject</a>
    <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GInitiallyUnowned">GInitiallyUnowned</a>
        <span class="lineart">╰──</span> <a class="link" href="GESTimelineElement.html" title="GESTimelineElement">GESTimelineElement</a>
            <span class="lineart">╰──</span> GESTrackElement
                <span class="lineart">├──</span> <a class="link" href="GESSource.html" title="GESSource">GESSource</a>
                <span class="lineart">╰──</span> <a class="link" href="GESOperation.html" title="GESOperation">GESOperation</a>
</pre>
</div>
<div class="refsect1">
<a name="GESTrackElement.implemented-interfaces"></a><h2>Implemented Interfaces</h2>
<p>
GESTrackElement implements
 <a class="link" href="ges-GESExtractableInterface.html#GESExtractable">GESExtractable</a> and  <a class="link" href="GESMetaContainer.html" title="GESMetaContainer">GESMetaContainer</a>.</p>
</div>
<div class="refsect1">
<a name="GESTrackElement.includes"></a><h2>Includes</h2>
<pre class="synopsis">#include &lt;ges/ges.h&gt;
</pre>
</div>
<div class="refsect1">
<a name="GESTrackElement.description"></a><h2>Description</h2>
<p><a class="link" href="GESTrackElement.html" title="GESTrackElement"><span class="type">GESTrackElement</span></a> is the Base Class for any object that can be contained in a
<a class="link" href="GESTrack.html" title="GESTrack"><span class="type">GESTrack</span></a>.</p>
<p>It contains the basic information as to the location of the object within
its container, like the start position, the inpoint, the duration and the
priority.</p>
</div>
<div class="refsect1">
<a name="GESTrackElement.functions_details"></a><h2>Functions</h2>
<div class="refsect2">
<a name="ges-track-element-set-active"></a><h3>ges_track_element_set_active ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
ges_track_element_set_active (<em class="parameter"><code><a class="link" href="GESTrackElement.html" title="GESTrackElement"><span class="type">GESTrackElement</span></a> *object</code></em>,
                              <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> active</code></em>);</pre>
<p>Sets the usage of the <em class="parameter"><code>object</code></em>
. If <em class="parameter"><code>active</code></em>
 is <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a>, the object will be used for
playback and rendering, else it will be ignored.</p>
<div class="refsect3">
<a name="id-1.3.12.11.2.5"></a><h4>Parameters</h4>
<div class="informaltable"><table 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>object</p></td>
<td class="parameter_description"><p>a <a class="link" href="GESTrackElement.html" title="GESTrackElement"><span class="type">GESTrackElement</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>active</p></td>
<td class="parameter_description"><p>visibility</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.3.12.11.2.6"></a><h4>Returns</h4>
<p> <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if the property was toggled, else <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="ges-track-element-get-track"></a><h3>ges_track_element_get_track ()</h3>
<pre class="programlisting"><a class="link" href="GESTrack.html" title="GESTrack"><span class="returnvalue">GESTrack</span></a> *
ges_track_element_get_track (<em class="parameter"><code><a class="link" href="GESTrackElement.html" title="GESTrackElement"><span class="type">GESTrackElement</span></a> *object</code></em>);</pre>
<p>Get the <a class="link" href="GESTrack.html" title="GESTrack"><span class="type">GESTrack</span></a> to which this object belongs.</p>
<div class="refsect3">
<a name="id-1.3.12.11.3.5"></a><h4>Parameters</h4>
<div class="informaltable"><table 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>object</p></td>
<td class="parameter_description"><p>a <a class="link" href="GESTrackElement.html" title="GESTrackElement"><span class="type">GESTrackElement</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.3.12.11.3.6"></a><h4>Returns</h4>
<p> The <a class="link" href="GESTrack.html" title="GESTrack"><span class="type">GESTrack</span></a> to which this object belongs. Can be <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> if it
is not in any track. </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>
</div>
<hr>
<div class="refsect2">
<a name="ges-track-element-get-nleobject"></a><h3>ges_track_element_get_nleobject ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstElement.html"><span class="returnvalue">GstElement</span></a> *
ges_track_element_get_nleobject (<em class="parameter"><code><a class="link" href="GESTrackElement.html" title="GESTrackElement"><span class="type">GESTrackElement</span></a> *object</code></em>);</pre>
<p>Get the GNonLin object this object is controlling.</p>
<div class="refsect3">
<a name="id-1.3.12.11.4.5"></a><h4>Parameters</h4>
<div class="informaltable"><table 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>object</p></td>
<td class="parameter_description"><p>a <a class="link" href="GESTrackElement.html" title="GESTrackElement"><span class="type">GESTrackElement</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.3.12.11.4.6"></a><h4>Returns</h4>
<p> the GNonLin object this object is controlling. </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: 1.6</p>
</div>
<hr>
<div class="refsect2">
<a name="ges-track-element-get-gnlobject"></a><h3>ges_track_element_get_gnlobject ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstElement.html"><span class="returnvalue">GstElement</span></a> *
ges_track_element_get_gnlobject (<em class="parameter"><code><a class="link" href="GESTrackElement.html" title="GESTrackElement"><span class="type">GESTrackElement</span></a> *object</code></em>);</pre>
<div class="warning">
<p><code class="literal">ges_track_element_get_gnlobject</code> is deprecated and should not be used in newly-written code.</p>
<p>use <a class="link" href="GESTrackElement.html#ges-track-element-get-nleobject" title="ges_track_element_get_nleobject ()"><span class="type">ges_track_element_get_nleobject</span></a> instead.</p>
</div>
<p>Get the NleObject object this object is controlling.</p>
<div class="refsect3">
<a name="id-1.3.12.11.5.6"></a><h4>Parameters</h4>
<div class="informaltable"><table 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>object</p></td>
<td class="parameter_description"><p>a <a class="link" href="GESTrackElement.html" title="GESTrackElement"><span class="type">GESTrackElement</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.3.12.11.5.7"></a><h4>Returns</h4>
<p> the NleObject object this object is controlling. </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>
</div>
<hr>
<div class="refsect2">
<a name="ges-track-element-get-element"></a><h3>ges_track_element_get_element ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstElement.html"><span class="returnvalue">GstElement</span></a> *
ges_track_element_get_element (<em class="parameter"><code><a class="link" href="GESTrackElement.html" title="GESTrackElement"><span class="type">GESTrackElement</span></a> *object</code></em>);</pre>
<p>Get the <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstElement.html"><span class="type">GstElement</span></a> this track element is controlling within GNonLin.</p>
<div class="refsect3">
<a name="id-1.3.12.11.6.5"></a><h4>Parameters</h4>
<div class="informaltable"><table 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>object</p></td>
<td class="parameter_description"><p>a <a class="link" href="GESTrackElement.html" title="GESTrackElement"><span class="type">GESTrackElement</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.3.12.11.6.6"></a><h4>Returns</h4>
<p> the <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstElement.html"><span class="type">GstElement</span></a> this track element is controlling
within GNonLin. </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>
</div>
<hr>
<div class="refsect2">
<a name="ges-track-element-is-active"></a><h3>ges_track_element_is_active ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
ges_track_element_is_active (<em class="parameter"><code><a class="link" href="GESTrackElement.html" title="GESTrackElement"><span class="type">GESTrackElement</span></a> *object</code></em>);</pre>
<p>Lets you know if <em class="parameter"><code>object</code></em>
 will be used for playback and rendering,
or not.</p>
<div class="refsect3">
<a name="id-1.3.12.11.7.5"></a><h4>Parameters</h4>
<div class="informaltable"><table 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>object</p></td>
<td class="parameter_description"><p>a <a class="link" href="GESTrackElement.html" title="GESTrackElement"><span class="type">GESTrackElement</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.3.12.11.7.6"></a><h4>Returns</h4>
<p> <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if <em class="parameter"><code>object</code></em>
is active, <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> otherwize</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="ges-track-element-lookup-child"></a><h3>ges_track_element_lookup_child ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
ges_track_element_lookup_child (<em class="parameter"><code><a class="link" href="GESTrackElement.html" title="GESTrackElement"><span class="type">GESTrackElement</span></a> *object</code></em>,
                                <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *prop_name</code></em>,
                                <em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstElement.html"><span class="type">GstElement</span></a> **element</code></em>,
                                <em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobject/gobject-GParamSpec.html#GParamSpec"><span class="type">GParamSpec</span></a> **pspec</code></em>);</pre>
<div class="warning">
<p><code class="literal">ges_track_element_lookup_child</code> is deprecated and should not be used in newly-written code.</p>
<p>Use <a class="link" href="GESTimelineElement.html#ges-timeline-element-lookup-child" title="ges_timeline_element_lookup_child ()"><span class="type">ges_timeline_element_lookup_child</span></a></p>
</div>
<p>Looks up which <em class="parameter"><code>element</code></em>
 and <em class="parameter"><code>pspec</code></em>
 would be effected by the given <em class="parameter"><code>name</code></em>
. If various
contained elements have this property name you will get the first one, unless you
specify the class name in <em class="parameter"><code>name</code></em>
.</p>
<div class="refsect3">
<a name="id-1.3.12.11.8.6"></a><h4>Parameters</h4>
<div class="informaltable"><table 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>object</p></td>
<td class="parameter_description"><p>object to lookup the property in</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>prop_name</p></td>
<td class="parameter_description"><p>name of the property to look up. You can specify the name of the
class as such: "ClassName::property-name", to guarantee that you get the
proper GParamSpec in case various GstElement-s contain the same property
name. If you don't do so, you will get the first element found, having
this property and the and the corresponding GParamSpec.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>element</p></td>
<td class="parameter_description"><p> pointer to a <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstElement.html"><span class="type">GstElement</span></a> that
takes the real object to set property on. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>][<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>][<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>pspec</p></td>
<td class="parameter_description"><p> pointer to take the <a href="/usr/share/gtk-doc/html/gobject/gobject-GParamSpec.html#GParamSpec"><span class="type">GParamSpec</span></a>
describing the property. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>][<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>][<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.3.12.11.8.7"></a><h4>Returns</h4>
<p> TRUE if <em class="parameter"><code>element</code></em>
and <em class="parameter"><code>pspec</code></em>
could be found. FALSE otherwise. In that
case the values for <em class="parameter"><code>pspec</code></em>
and <em class="parameter"><code>element</code></em>
are not modified. Unref <em class="parameter"><code>element</code></em>
after
usage.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="ges-track-element-list-children-properties"></a><h3>ges_track_element_list_children_properties ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/gobject/gobject-GParamSpec.html#GParamSpec"><span class="returnvalue">GParamSpec</span></a> **
ges_track_element_list_children_properties
                               (<em class="parameter"><code><a class="link" href="GESTrackElement.html" title="GESTrackElement"><span class="type">GESTrackElement</span></a> *object</code></em>,
                                <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> *n_properties</code></em>);</pre>
<div class="warning">
<p><code class="literal">ges_track_element_list_children_properties</code> is deprecated and should not be used in newly-written code.</p>
<p>Use <a class="link" href="GESTimelineElement.html#ges-timeline-element-list-children-properties" title="ges_timeline_element_list_children_properties ()"><span class="type">ges_timeline_element_list_children_properties</span></a></p>
</div>
<p>Gets an array of <a href="/usr/share/gtk-doc/html/gobject/gobject-GParamSpec.html#GParamSpec"><span class="type">GParamSpec</span></a>* for all configurable properties of the
children of <em class="parameter"><code>object</code></em>
.</p>
<div class="refsect3">
<a name="id-1.3.12.11.9.6"></a><h4>Parameters</h4>
<div class="informaltable"><table 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>object</p></td>
<td class="parameter_description"><p>The <a class="link" href="GESTrackElement.html" title="GESTrackElement"><span class="type">GESTrackElement</span></a> to get the list of children properties from</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>n_properties</p></td>
<td class="parameter_description"><p> return location for the length of the returned array. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.3.12.11.9.7"></a><h4>Returns</h4>
<p> an array of <a href="/usr/share/gtk-doc/html/gobject/gobject-GParamSpec.html#GParamSpec"><span class="type">GParamSpec</span></a>* which should be freed after use or
<a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> if something went wrong. </p>
<p><span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>][<acronym title="Parameter points to an array of items."><span class="acronym">array</span></acronym> length=n_properties]</span></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="ges-track-element-set-child-property"></a><h3>ges_track_element_set_child_property ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
ges_track_element_set_child_property (<em class="parameter"><code><a class="link" href="GESTrackElement.html" title="GESTrackElement"><span class="type">GESTrackElement</span></a> *object</code></em>,
                                      <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *property_name</code></em>,
                                      <em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue"><span class="type">GValue</span></a> *value</code></em>);</pre>
<div class="warning">
<p><code class="literal">ges_track_element_set_child_property</code> is deprecated and should not be used in newly-written code.</p>
<p>use <a class="link" href="GESTimelineElement.html#ges-timeline-element-set-child-property" title="ges_timeline_element_set_child_property ()"><span class="type">ges_timeline_element_set_child_property</span></a> instead</p>
</div>
<p>Sets a property of a GstElement contained in <em class="parameter"><code>object</code></em>
.</p>
<p>Note that <a class="link" href="GESTrackElement.html#ges-track-element-set-child-property" title="ges_track_element_set_child_property ()"><span class="type">ges_track_element_set_child_property</span></a> is really
intended for language bindings, <a class="link" href="GESTrackElement.html#ges-track-element-set-child-properties" title="ges_track_element_set_child_properties ()"><span class="type">ges_track_element_set_child_properties</span></a>
is much more convenient for C programming.</p>
<div class="refsect3">
<a name="id-1.3.12.11.10.7"></a><h4>Parameters</h4>
<div class="informaltable"><table 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>object</p></td>
<td class="parameter_description"><p>The origin <a class="link" href="GESTrackElement.html" title="GESTrackElement"><span class="type">GESTrackElement</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>property_name</p></td>
<td class="parameter_description"><p>The name of the property</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>value</p></td>
<td class="parameter_description"><p>the value</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.3.12.11.10.8"></a><h4>Returns</h4>
<p> <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if the property was set, <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> otherwize</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="ges-track-element-set-child-properties"></a><h3>ges_track_element_set_child_properties ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
ges_track_element_set_child_properties
                               (<em class="parameter"><code><a class="link" href="GESTrackElement.html" title="GESTrackElement"><span class="type">GESTrackElement</span></a> *object</code></em>,
                                <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *first_property_name</code></em>,
                                <em class="parameter"><code>...</code></em>);</pre>
<div class="warning">
<p><code class="literal">ges_track_element_set_child_properties</code> is deprecated and should not be used in newly-written code.</p>
<p>Use <a class="link" href="GESTimelineElement.html#ges-timeline-element-set-child-properties" title="ges_timeline_element_set_child_properties ()"><span class="type">ges_timeline_element_set_child_properties</span></a></p>
</div>
<p>Sets a property of a child of <em class="parameter"><code>object</code></em>
. If there are various child elements
that have the same property name, you can distinguish them using the following
syntax: 'ClasseName::property_name' as property name. If you don't, the
corresponding property of the first element found will be set.</p>
<div class="refsect3">
<a name="id-1.3.12.11.11.6"></a><h4>Parameters</h4>
<div class="informaltable"><table 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>object</p></td>
<td class="parameter_description"><p>The <a class="link" href="GESTrackElement.html" title="GESTrackElement"><span class="type">GESTrackElement</span></a> parent object</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>first_property_name</p></td>
<td class="parameter_description"><p>The name of the first property to set</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>...</p></td>
<td class="parameter_description"><p>value for the first property, followed optionally by more
name/return location pairs, followed by NULL</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="ges-track-element-set-child-property-valist"></a><h3>ges_track_element_set_child_property_valist ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
ges_track_element_set_child_property_valist
                               (<em class="parameter"><code><a class="link" href="GESTrackElement.html" title="GESTrackElement"><span class="type">GESTrackElement</span></a> *object</code></em>,
                                <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *first_property_name</code></em>,
                                <em class="parameter"><code><span class="type">va_list</span> var_args</code></em>);</pre>
<div class="warning">
<p><code class="literal">ges_track_element_set_child_property_valist</code> is deprecated and should not be used in newly-written code.</p>
<p>Use <a class="link" href="GESTimelineElement.html#ges-timeline-element-set-child-property-valist" title="ges_timeline_element_set_child_property_valist ()"><span class="type">ges_timeline_element_set_child_property_valist</span></a></p>
</div>
<p>Sets a property of a child of <em class="parameter"><code>object</code></em>
. If there are various child elements
that have the same property name, you can distinguish them using the following
syntax: 'ClasseName::property_name' as property name. If you don't, the
corresponding property of the first element found will be set.</p>
<div class="refsect3">
<a name="id-1.3.12.11.12.6"></a><h4>Parameters</h4>
<div class="informaltable"><table 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>object</p></td>
<td class="parameter_description"><p>The <a class="link" href="GESTrackElement.html" title="GESTrackElement"><span class="type">GESTrackElement</span></a> parent object</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>first_property_name</p></td>
<td class="parameter_description"><p>The name of the first property to set</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>var_args</p></td>
<td class="parameter_description"><p>value for the first property, followed optionally by more
name/return location pairs, followed by NULL</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="ges-track-element-set-child-property-by-pspec"></a><h3>ges_track_element_set_child_property_by_pspec ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
ges_track_element_set_child_property_by_pspec
                               (<em class="parameter"><code><a class="link" href="GESTrackElement.html" title="GESTrackElement"><span class="type">GESTrackElement</span></a> *object</code></em>,
                                <em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobject/gobject-GParamSpec.html#GParamSpec"><span class="type">GParamSpec</span></a> *pspec</code></em>,
                                <em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue"><span class="type">GValue</span></a> *value</code></em>);</pre>
<div class="warning">
<p><code class="literal">ges_track_element_set_child_property_by_pspec</code> is deprecated and should not be used in newly-written code.</p>
<p>Use <span class="type">ges_timeline_element_set_child_property_by_spec</span></p>
</div>
<p>Sets a property of a child of <em class="parameter"><code>object</code></em>
.</p>
<div class="refsect3">
<a name="id-1.3.12.11.13.6"></a><h4>Parameters</h4>
<div class="informaltable"><table 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>object</p></td>
<td class="parameter_description"><p>a <a class="link" href="GESTrackElement.html" title="GESTrackElement"><span class="type">GESTrackElement</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>pspec</p></td>
<td class="parameter_description"><p>The <a href="/usr/share/gtk-doc/html/gobject/gobject-GParamSpec.html#GParamSpec"><span class="type">GParamSpec</span></a> that specifies the property you want to set</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>value</p></td>
<td class="parameter_description"><p>the value</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="ges-track-element-get-child-property"></a><h3>ges_track_element_get_child_property ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
ges_track_element_get_child_property (<em class="parameter"><code><a class="link" href="GESTrackElement.html" title="GESTrackElement"><span class="type">GESTrackElement</span></a> *object</code></em>,
                                      <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *property_name</code></em>,
                                      <em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue"><span class="type">GValue</span></a> *value</code></em>);</pre>
<div class="warning">
<p><code class="literal">ges_track_element_get_child_property</code> is deprecated and should not be used in newly-written code.</p>
<p>Use <a class="link" href="GESTimelineElement.html#ges-timeline-element-get-child-property" title="ges_timeline_element_get_child_property ()"><span class="type">ges_timeline_element_get_child_property</span></a></p>
</div>
<p>In general, a copy is made of the property contents and
the caller is responsible for freeing the memory by calling
<a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#g-value-unset"><code class="function">g_value_unset()</code></a>.</p>
<p>Gets a property of a GstElement contained in <em class="parameter"><code>object</code></em>
.</p>
<p>Note that <a class="link" href="GESTrackElement.html#ges-track-element-get-child-property" title="ges_track_element_get_child_property ()"><span class="type">ges_track_element_get_child_property</span></a> is really
intended for language bindings, <a class="link" href="GESTrackElement.html#ges-track-element-get-child-properties" title="ges_track_element_get_child_properties ()"><span class="type">ges_track_element_get_child_properties</span></a>
is much more convenient for C programming.</p>
<div class="refsect3">
<a name="id-1.3.12.11.14.8"></a><h4>Parameters</h4>
<div class="informaltable"><table 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>object</p></td>
<td class="parameter_description"><p>The origin <a class="link" href="GESTrackElement.html" title="GESTrackElement"><span class="type">GESTrackElement</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>property_name</p></td>
<td class="parameter_description"><p>The name of the property</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>value</p></td>
<td class="parameter_description"><p> return location for the property value, it will
be initialized if it is initialized with 0. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.3.12.11.14.9"></a><h4>Returns</h4>
<p> <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if the property was found, <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> otherwize</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="ges-track-element-get-child-properties"></a><h3>ges_track_element_get_child_properties ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
ges_track_element_get_child_properties
                               (<em class="parameter"><code><a class="link" href="GESTrackElement.html" title="GESTrackElement"><span class="type">GESTrackElement</span></a> *object</code></em>,
                                <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *first_property_name</code></em>,
                                <em class="parameter"><code>...</code></em>);</pre>
<div class="warning">
<p><code class="literal">ges_track_element_get_child_properties</code> is deprecated and should not be used in newly-written code.</p>
<p>Use <a class="link" href="GESTimelineElement.html#ges-timeline-element-get-child-properties" title="ges_timeline_element_get_child_properties ()"><span class="type">ges_timeline_element_get_child_properties</span></a></p>
</div>
<p>Gets properties of a child of <em class="parameter"><code>object</code></em>
.</p>
<div class="refsect3">
<a name="id-1.3.12.11.15.6"></a><h4>Parameters</h4>
<div class="informaltable"><table 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>object</p></td>
<td class="parameter_description"><p>The origin <a class="link" href="GESTrackElement.html" title="GESTrackElement"><span class="type">GESTrackElement</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>first_property_name</p></td>
<td class="parameter_description"><p>The name of the first property to get</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>...</p></td>
<td class="parameter_description"><p>return location for the first property, followed optionally by more
name/return location pairs, followed by NULL</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="ges-track-element-get-child-property-valist"></a><h3>ges_track_element_get_child_property_valist ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
ges_track_element_get_child_property_valist
                               (<em class="parameter"><code><a class="link" href="GESTrackElement.html" title="GESTrackElement"><span class="type">GESTrackElement</span></a> *object</code></em>,
                                <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *first_property_name</code></em>,
                                <em class="parameter"><code><span class="type">va_list</span> var_args</code></em>);</pre>
<div class="warning">
<p><code class="literal">ges_track_element_get_child_property_valist</code> is deprecated and should not be used in newly-written code.</p>
<p>Use <a class="link" href="GESTimelineElement.html#ges-timeline-element-get-child-property-valist" title="ges_timeline_element_get_child_property_valist ()"><span class="type">ges_timeline_element_get_child_property_valist</span></a></p>
</div>
<p>Gets a property of a child of <em class="parameter"><code>object</code></em>
. If there are various child elements
that have the same property name, you can distinguish them using the following
syntax: 'ClasseName::property_name' as property name. If you don't, the
corresponding property of the first element found will be set.</p>
<div class="refsect3">
<a name="id-1.3.12.11.16.6"></a><h4>Parameters</h4>
<div class="informaltable"><table 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>object</p></td>
<td class="parameter_description"><p>The <a class="link" href="GESTrackElement.html" title="GESTrackElement"><span class="type">GESTrackElement</span></a> parent object</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>first_property_name</p></td>
<td class="parameter_description"><p>The name of the first property to get</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>var_args</p></td>
<td class="parameter_description"><p>value for the first property, followed optionally by more
name/return location pairs, followed by NULL</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="ges-track-element-get-child-property-by-pspec"></a><h3>ges_track_element_get_child_property_by_pspec ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
ges_track_element_get_child_property_by_pspec
                               (<em class="parameter"><code><a class="link" href="GESTrackElement.html" title="GESTrackElement"><span class="type">GESTrackElement</span></a> *object</code></em>,
                                <em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobject/gobject-GParamSpec.html#GParamSpec"><span class="type">GParamSpec</span></a> *pspec</code></em>,
                                <em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue"><span class="type">GValue</span></a> *value</code></em>);</pre>
<div class="warning">
<p><code class="literal">ges_track_element_get_child_property_by_pspec</code> is deprecated and should not be used in newly-written code.</p>
<p>Use <a class="link" href="GESTimelineElement.html#ges-timeline-element-get-child-property-by-pspec" title="ges_timeline_element_get_child_property_by_pspec ()"><span class="type">ges_timeline_element_get_child_property_by_pspec</span></a></p>
</div>
<p>Gets a property of a child of <em class="parameter"><code>object</code></em>
.</p>
<div class="refsect3">
<a name="id-1.3.12.11.17.6"></a><h4>Parameters</h4>
<div class="informaltable"><table 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>object</p></td>
<td class="parameter_description"><p>a <a class="link" href="GESTrackElement.html" title="GESTrackElement"><span class="type">GESTrackElement</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>pspec</p></td>
<td class="parameter_description"><p>The <a href="/usr/share/gtk-doc/html/gobject/gobject-GParamSpec.html#GParamSpec"><span class="type">GParamSpec</span></a> that specifies the property you want to get</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>value</p></td>
<td class="parameter_description"><p> return location for the value. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="ges-track-element-edit"></a><h3>ges_track_element_edit ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
ges_track_element_edit (<em class="parameter"><code><a class="link" href="GESTrackElement.html" title="GESTrackElement"><span class="type">GESTrackElement</span></a> *object</code></em>,
                        <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Doubly-Linked-Lists.html#GList"><span class="type">GList</span></a> *layers</code></em>,
                        <em class="parameter"><code><a class="link" href="ges-GES-Enums.html#GESEditMode" title="enum GESEditMode"><span class="type">GESEditMode</span></a> mode</code></em>,
                        <em class="parameter"><code><a class="link" href="ges-GES-Enums.html#GESEdge" title="enum GESEdge"><span class="type">GESEdge</span></a> edge</code></em>,
                        <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint64"><span class="type">guint64</span></a> position</code></em>);</pre>
<p>Edit <em class="parameter"><code>object</code></em>
 in the different exisiting <a class="link" href="ges-GES-Enums.html#GESEditMode" title="enum GESEditMode"><span class="type">GESEditMode</span></a> modes. In the case of
slide, and roll, you need to specify a <a class="link" href="ges-GES-Enums.html#GESEdge" title="enum GESEdge"><span class="type">GESEdge</span></a></p>
<div class="refsect3">
<a name="id-1.3.12.11.18.5"></a><h4>Parameters</h4>
<div class="informaltable"><table 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>object</p></td>
<td class="parameter_description"><p>the <a class="link" href="GESTrackElement.html" title="GESTrackElement"><span class="type">GESTrackElement</span></a> to edit</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>layers</p></td>
<td class="parameter_description"><p> The layers you want the edit to
happen in, <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> means that the edition is done in all the
<a href="../ges-1.0/GESLayer.html"><span class="type">GESLayers</span></a> contained in the current timeline.
FIXME: This is not implemented yet. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Generics and defining elements of containers and arrays."><span class="acronym">element-type</span></acronym> GESLayer]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>mode</p></td>
<td class="parameter_description"><p>The <a class="link" href="ges-GES-Enums.html#GESEditMode" title="enum GESEditMode"><span class="type">GESEditMode</span></a> in which the editition will happen.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>edge</p></td>
<td class="parameter_description"><p>The <a class="link" href="ges-GES-Enums.html#GESEdge" title="enum GESEdge"><span class="type">GESEdge</span></a> the edit should happen on.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>position</p></td>
<td class="parameter_description"><p>The position at which to edit <em class="parameter"><code>object</code></em>
(in nanosecond)</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.3.12.11.18.6"></a><h4>Returns</h4>
<p> <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if the object as been edited properly, <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> if an error
occured</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="ges-track-element-set-control-source"></a><h3>ges_track_element_set_control_source ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
ges_track_element_set_control_source (<em class="parameter"><code><a class="link" href="GESTrackElement.html" title="GESTrackElement"><span class="type">GESTrackElement</span></a> *object</code></em>,
                                      <em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstControlSource.html"><span class="type">GstControlSource</span></a> *source</code></em>,
                                      <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *property_name</code></em>,
                                      <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *binding_type</code></em>);</pre>
<p>Creates a <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstControlBinding.html"><span class="type">GstControlBinding</span></a> and adds it to the <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstElement.html"><span class="type">GstElement</span></a> concerned by the
property. Use the same syntax as <a class="link" href="GESTrackElement.html#ges-track-element-lookup-child" title="ges_track_element_lookup_child ()"><span class="type">ges_track_element_lookup_child</span></a> for
the property name.</p>
<div class="refsect3">
<a name="id-1.3.12.11.19.5"></a><h4>Parameters</h4>
<div class="informaltable"><table 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>object</p></td>
<td class="parameter_description"><p>the <a class="link" href="GESTrackElement.html" title="GESTrackElement"><span class="type">GESTrackElement</span></a> on which to set a control binding</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>source</p></td>
<td class="parameter_description"><p> the <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstControlSource.html"><span class="type">GstControlSource</span></a> to set on the binding. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Generics and defining elements of containers and arrays."><span class="acronym">element-type</span></acronym> GstControlSource]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>property_name</p></td>
<td class="parameter_description"><p>The name of the property to control.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>binding_type</p></td>
<td class="parameter_description"><p>The type of binding to create. Only "direct" is available for now.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.3.12.11.19.6"></a><h4>Returns</h4>
<p> <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if the binding could be created and added, <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> if an error
occured</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="ges-track-element-get-control-binding"></a><h3>ges_track_element_get_control_binding ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstControlBinding.html"><span class="returnvalue">GstControlBinding</span></a> *
ges_track_element_get_control_binding (<em class="parameter"><code><a class="link" href="GESTrackElement.html" title="GESTrackElement"><span class="type">GESTrackElement</span></a> *object</code></em>,
                                       <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *property_name</code></em>);</pre>
<p>Looks up the various controlled properties for that <a class="link" href="GESTrackElement.html" title="GESTrackElement"><span class="type">GESTrackElement</span></a>,
and returns the <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstControlBinding.html"><span class="type">GstControlBinding</span></a> which controls <em class="parameter"><code>property_name</code></em>
.</p>
<div class="refsect3">
<a name="id-1.3.12.11.20.5"></a><h4>Parameters</h4>
<div class="informaltable"><table 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>object</p></td>
<td class="parameter_description"><p>the <a class="link" href="GESTrackElement.html" title="GESTrackElement"><span class="type">GESTrackElement</span></a> in which to lookup the bindings.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>property_name</p></td>
<td class="parameter_description"><p>The property_name to which the binding is associated.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.3.12.11.20.6"></a><h4>Returns</h4>
<p> the <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstControlBinding.html"><span class="type">GstControlBinding</span></a> associated with <em class="parameter"><code>property_name</code></em>
, or <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>
if that property is not controlled. </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>
</div>
<hr>
<div class="refsect2">
<a name="ges-track-element-get-all-control-bindings"></a><h3>ges_track_element_get_all_control_bindings ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Hash-Tables.html#GHashTable"><span class="returnvalue">GHashTable</span></a> *
ges_track_element_get_all_control_bindings
                               (<em class="parameter"><code><a class="link" href="GESTrackElement.html" title="GESTrackElement"><span class="type">GESTrackElement</span></a> *trackelement</code></em>);</pre>
<div class="refsect3">
<a name="id-1.3.12.11.21.4"></a><h4>Parameters</h4>
<div class="informaltable"><table 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>trackelement</p></td>
<td class="parameter_description"><p>The <span class="type">TrackElement</span> from which to get all set bindings</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.3.12.11.21.5"></a><h4>Returns</h4>
<p> A
<a href="/usr/share/gtk-doc/html/glib/glib-Hash-Tables.html#GHashTable"><span class="type">GHashTable</span></a> containing all property_name: GstControlBinding. </p>
<p><span class="annotation">[<acronym title="Generics and defining elements of containers and arrays."><span class="acronym">element-type</span></acronym> gchar* GstControlBinding][<acronym title="Don't free data after the code is done."><span class="acronym">transfer none</span></acronym>]</span></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="ges-track-element-remove-control-binding"></a><h3>ges_track_element_remove_control_binding ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
ges_track_element_remove_control_binding
                               (<em class="parameter"><code><a class="link" href="GESTrackElement.html" title="GESTrackElement"><span class="type">GESTrackElement</span></a> *object</code></em>,
                                <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *property_name</code></em>);</pre>
<p>Removes a <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstControlBinding.html"><span class="type">GstControlBinding</span></a> from <em class="parameter"><code>object</code></em>
.</p>
<div class="refsect3">
<a name="id-1.3.12.11.22.5"></a><h4>Parameters</h4>
<div class="informaltable"><table 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>object</p></td>
<td class="parameter_description"><p>the <a class="link" href="GESTrackElement.html" title="GESTrackElement"><span class="type">GESTrackElement</span></a> on which to set a control binding</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>property_name</p></td>
<td class="parameter_description"><p>The name of the property to control.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>binding_type</p></td>
<td class="parameter_description"><p>The type of binding to create. Only "direct" is available for now.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.3.12.11.22.6"></a><h4>Returns</h4>
<p> <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if the binding could be removed, <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> if an error
occured</p>
</div>
</div>
</div>
<div class="refsect1">
<a name="GESTrackElement.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="GESTrackElement-struct"></a><h3>GESTrackElement</h3>
<pre class="programlisting">typedef struct _GESTrackElement GESTrackElement;</pre>
<p>The GESTrackElement base class.</p>
</div>
<hr>
<div class="refsect2">
<a name="GESTrackElementClass"></a><h3>GESTrackElementClass</h3>
<pre class="programlisting">typedef struct {
  /* virtual methods for subclasses */
  const gchar  *nleobject_factorytype;
  GstElement*  (*create_gnl_object)        (GESTrackElement * object);
  GstElement*  (*create_element)           (GESTrackElement * object);

  void (*active_changed)       (GESTrackElement *object, gboolean active);

  /* virtual methods for subclasses */
  GParamSpec** (*list_children_properties) (GESTrackElement * object,
              guint *n_properties);
  gboolean (*lookup_child)                 (GESTrackElement *object,
                                            const gchar *prop_name,
                                            GstElement **element,
                                            GParamSpec **pspec);
} GESTrackElementClass;
</pre>
<p>Subclasses can override the <em class="parameter"><code>create_gnl_object</code></em>
 method to override what type
of GNonLin object will be created.</p>
<div class="refsect3">
<a name="id-1.3.12.12.3.5"></a><h4>Members</h4>
<div class="informaltable"><table 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>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *<em class="structfield"><code><a name="GESTrackElementClass.nleobject-factorytype"></a>nleobject_factorytype</code></em>;</p></td>
<td class="struct_member_description"><p>name of the GNonLin GStElementFactory type to use.</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><em class="structfield"><code><a name="GESTrackElementClass.create-gnl-object"></a>create_gnl_object</code></em> ()</p></td>
<td class="struct_member_description"><p>method to create the GNonLin container object.</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><em class="structfield"><code><a name="GESTrackElementClass.create-element"></a>create_element</code></em> ()</p></td>
<td class="struct_member_description"><p>method to return the GstElement to put in the nleobject.</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><em class="structfield"><code><a name="GESTrackElementClass.active-changed"></a>active_changed</code></em> ()</p></td>
<td class="struct_member_description"><p>active property of nleobject has changed</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><em class="structfield"><code><a name="GESTrackElementClass.list-children-properties"></a>list_children_properties</code></em> ()</p></td>
<td class="struct_member_description"><p>method to get children properties that user could
like to configure.
The default implementation will create an object
of type <em class="parameter"><code>nleobject_factorytype</code></em>
and call
<em class="parameter"><code>create_element</code></em>
.
DeprecatedUse: GESTimelineElement.list_children_properties instead</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><em class="structfield"><code><a name="GESTrackElementClass.lookup-child"></a>lookup_child</code></em> ()</p></td>
<td class="struct_member_description"><p>method letting subclasses look for a child, overriding the
simple standard behaviour. This vmethod can be used for example
in the case where you want the name of a child property to be
'overriden'. A good example of where it is usefull is the
GESTitleSource where we have a videotestsrc which has a
'foreground-color' property that is used in the TitleSource to
set the background color of the title, in that case, this method
has been overriden so that we tweak the name passed has parametter
to rename "background" to "foreground-backend" making our API
understandable.
Deprecated: use GESTimelineElement.lookup_child instead</p></td>
<td class="struct_member_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
</div>
<div class="refsect1">
<a name="GESTrackElement.property-details"></a><h2>Property Details</h2>
<div class="refsect2">
<a name="GESTrackElement--active"></a><h3>The <code class="literal">“active”</code> property</h3>
<pre class="programlisting">  “active”                   <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></pre>
<p>Whether the object should be taken into account in the <a class="link" href="GESTrack.html" title="GESTrack"><span class="type">GESTrack</span></a> output.
If <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#FALSE:CAPS"><span class="type">FALSE</span></a>, then its contents will not be used in the resulting track.</p>
<p>Flags: Read / Write</p>
<p>Default value: TRUE</p>
</div>
<hr>
<div class="refsect2">
<a name="GESTrackElement--track"></a><h3>The <code class="literal">“track”</code> property</h3>
<pre class="programlisting">  “track”                    <a class="link" href="GESTrack.html" title="GESTrack"><span class="type">GESTrack</span></a> *</pre>
<p>The track the object is in.</p>
<p>Flags: Read</p>
</div>
<hr>
<div class="refsect2">
<a name="GESTrackElement--track-type"></a><h3>The <code class="literal">“track-type”</code> property</h3>
<pre class="programlisting">  “track-type”               <a class="link" href="ges-GES-Enums.html#GESTrackType" title="enum GESTrackType"><span class="type">GESTrackType</span></a></pre>
<p>The track type of the object.</p>
<p>Flags: Read / Write / Construct</p>
<p>Default value: GES_TRACK_TYPE_UNKNOWN</p>
</div>
</div>
<div class="refsect1">
<a name="GESTrackElement.signal-details"></a><h2>Signal Details</h2>
<div class="refsect2">
<a name="GESTrackElement-control-binding-added"></a><h3>The <code class="literal">“control-binding-added”</code> signal</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
user_function (<a class="link" href="GESTrackElement.html" title="GESTrackElement"><span class="type">GESTrackElement</span></a>   *track_element,
               <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstControlBinding.html"><span class="type">GstControlBinding</span></a> *control_binding,
               <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a>           user_data)</pre>
<p>The control-bunding-added  is emitted each time a control binding
is added for a child property of <em class="parameter"><code>track_element</code></em>
</p>
<div class="refsect3">
<a name="id-1.3.12.14.2.5"></a><h4>Parameters</h4>
<div class="informaltable"><table 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>track_element</p></td>
<td class="parameter_description"><p>a <a class="link" href="GESTrackElement.html" title="GESTrackElement"><span class="type">GESTrackElement</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>control_binding</p></td>
<td class="parameter_description"><p>the <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstControlBinding.html"><span class="type">GstControlBinding</span></a> that has been added</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>user data set when the signal handler was connected.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p>Flags: <a href="/usr/share/gtk-doc/html/gobject/gobject-Signals.html#G-SIGNAL-RUN-FIRST:CAPS">Run First</a></p>
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<hr>
<div class="refsect2">
<a name="GESTrackElement-control-binding-reomved"></a><h3>The <code class="literal">“control-binding-reomved”</code> signal</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
user_function (<a class="link" href="GESTrackElement.html" title="GESTrackElement"><span class="type">GESTrackElement</span></a>   *gestrackelement,
               <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstControlBinding.html"><span class="type">GstControlBinding</span></a> *arg1,
               <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a>           user_data)</pre>
<p>Flags: <a href="/usr/share/gtk-doc/html/gobject/gobject-Signals.html#G-SIGNAL-RUN-FIRST:CAPS">Run First</a></p>
</div>
</div>
</div>
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