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<h1>Gst::MessageStructureChange Class Reference</h1><!-- doxytag: class="Gst::MessageStructureChange" --><!-- doxytag: inherits="Gst::Message" -->
<p>A structure change message. <a href="#_details">More...</a></p>
<p>Inherits <a class="el" href="classGst_1_1Message.html">Gst::Message</a>.</p>
<div class="dynheader">
Collaboration diagram for Gst::MessageStructureChange:</div>
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<div class="center"><img src="classGst_1_1MessageStructureChange__coll__graph.png" border="0" usemap="#Gst_1_1MessageStructureChange_coll__map" alt="Collaboration graph"/></div>
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<area shape="rect" id="node2" href="classGst_1_1Message.html" title="A class that represents lightweight objects to signal the application of pipeline..." alt="" coords="53,86,157,117"/><area shape="rect" id="node4" href="classGst_1_1MiniObject.html" title="This is a base class for some gstreamermm objects." alt="" coords="49,6,161,37"/></map>
<center><span class="legend">[<a href="graph_legend.html">legend</a>]</span></center></div>
<p><a href="classGst_1_1MessageStructureChange-members.html">List of all members.</a></p>
<table border="0" cellpadding="0" cellspacing="0">
<tr><td colspan="2"><h2>Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1MessageStructureChange.html#afa6dcbcc7f4a1948b795e07f1be01183">MessageStructureChange</a> (GstMessage* castitem)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1MessageStructureChange.html#a83973ce2f42fb48635825190c83690dd">parse</a> (<a class="el" href="group__gstreamermmEnums.html#ga45bf4b0ca80f47d6d01674a8a3d8dc19">Gst::StructureChangeType</a>& type, <a class="elRef" href="../../../glibmm-2.4/reference/html/classGlib_1_1RefPtr.html">Glib::RefPtr</a>< <a class="el" href="classGst_1_1Element.html">Gst::Element</a> >& owner, bool& busy) const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Extracts the change type and completion status from the <a class="el" href="classGst_1_1Message.html" title="A class that represents lightweight objects to signal the application of pipeline...">Gst::Message</a>. <a href="#a83973ce2f42fb48635825190c83690dd"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__gstreamermmEnums.html#ga45bf4b0ca80f47d6d01674a8a3d8dc19">Gst::StructureChangeType</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1MessageStructureChange.html#a8dd957fa992620fff95e957e07274416">parse</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Extracts the change type from the Gs::tMessage. <a href="#a8dd957fa992620fff95e957e07274416"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="elRef" href="../../../glibmm-2.4/reference/html/classGlib_1_1RefPtr.html">Glib::RefPtr</a>< <a class="el" href="classGst_1_1Element.html">Gst::Element</a> > </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1MessageStructureChange.html#a6193443841d284b0613a68ee2093e3ce">parse_owner</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Extracts the owner from the <a class="el" href="classGst_1_1Message.html" title="A class that represents lightweight objects to signal the application of pipeline...">Gst::Message</a>. <a href="#a6193443841d284b0613a68ee2093e3ce"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1MessageStructureChange.html#af1c03951452cc974b63e834501098f68">parse_busy</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Extracts the completion status from the <a class="el" href="classGst_1_1Message.html" title="A class that represents lightweight objects to signal the application of pipeline...">Gst::Message</a>. <a href="#af1c03951452cc974b63e834501098f68"></a><br/></td></tr>
<tr><td colspan="2"><h2>Static Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">static <a class="elRef" href="../../../glibmm-2.4/reference/html/classGlib_1_1RefPtr.html">Glib::RefPtr</a>< <a class="el" href="classGst_1_1Message.html">Gst::Message</a> > </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1MessageStructureChange.html#afbc52ea6840d2587c03c6697df78be06">create</a> (const <a class="elRef" href="../../../glibmm-2.4/reference/html/classGlib_1_1RefPtr.html">Glib::RefPtr</a>< <a class="el" href="classGst_1_1Object.html">Gst::Object</a> >& src, <a class="el" href="group__gstreamermmEnums.html#ga45bf4b0ca80f47d6d01674a8a3d8dc19">Gst::StructureChangeType</a> type, const <a class="elRef" href="../../../glibmm-2.4/reference/html/classGlib_1_1RefPtr.html">Glib::RefPtr</a>< <a class="el" href="classGst_1_1Element.html">Gst::Element</a> >& owner, bool busy)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Create a new structure change message. <a href="#afbc52ea6840d2587c03c6697df78be06"></a><br/></td></tr>
</table>
<hr/><a name="_details"></a><h2>Detailed Description</h2>
<p>A structure change message. </p>
<p>See <a class="el" href="classGst_1_1MessageStructureChange.html#afbc52ea6840d2587c03c6697df78be06" title="Create a new structure change message.">create()</a> for more details. </p>
<hr/><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" id="afa6dcbcc7f4a1948b795e07f1be01183"></a><!-- doxytag: member="Gst::MessageStructureChange::MessageStructureChange" ref="afa6dcbcc7f4a1948b795e07f1be01183" args="(GstMessage *castitem)" -->
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<td class="memname">Gst::MessageStructureChange::MessageStructureChange </td>
<td>(</td>
<td class="paramtype">GstMessage * </td>
<td class="paramname"> <em>castitem</em></td>
<td> ) </td>
<td><code> [explicit]</code></td>
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<hr/><h2>Member Function Documentation</h2>
<a class="anchor" id="afbc52ea6840d2587c03c6697df78be06"></a><!-- doxytag: member="Gst::MessageStructureChange::create" ref="afbc52ea6840d2587c03c6697df78be06" args="(const Glib::RefPtr< Gst::Object > &src, Gst::StructureChangeType type, const Glib::RefPtr< Gst::Element > &owner, bool busy)" -->
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<td class="memname">static <a class="elRef" href="../../../glibmm-2.4/reference/html/classGlib_1_1RefPtr.html">Glib::RefPtr</a><<a class="el" href="classGst_1_1Message.html">Gst::Message</a>> Gst::MessageStructureChange::create </td>
<td>(</td>
<td class="paramtype">const <a class="elRef" href="../../../glibmm-2.4/reference/html/classGlib_1_1RefPtr.html">Glib::RefPtr</a>< <a class="el" href="classGst_1_1Object.html">Gst::Object</a> >& </td>
<td class="paramname"> <em>src</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__gstreamermmEnums.html#ga45bf4b0ca80f47d6d01674a8a3d8dc19">Gst::StructureChangeType</a> </td>
<td class="paramname"> <em>type</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="elRef" href="../../../glibmm-2.4/reference/html/classGlib_1_1RefPtr.html">Glib::RefPtr</a>< <a class="el" href="classGst_1_1Element.html">Gst::Element</a> >& </td>
<td class="paramname"> <em>owner</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">bool </td>
<td class="paramname"> <em>busy</em></td><td> </td>
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<td>)</td>
<td></td><td></td><td><code> [static]</code></td>
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<p>Create a new structure change message. </p>
<p>This message is posted when the structure of a pipeline is in the process of being changed, for example when pads are linked or unlinked.</p>
<p><em>src</em> should be the srcpad that unlinked or linked.</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>src</em> </td><td>The object originating the message. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>type</em> </td><td>The change type. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>owner</em> </td><td>The owner element of src. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>busy</em> </td><td>Whether the structure change is busy. </td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>The new structure change message. MT safe.</dd></dl>
<p>Since 0.10.22. </p>
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<a class="anchor" id="a8dd957fa992620fff95e957e07274416"></a><!-- doxytag: member="Gst::MessageStructureChange::parse" ref="a8dd957fa992620fff95e957e07274416" args="() const " -->
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<td class="memname"><a class="el" href="group__gstreamermmEnums.html#ga45bf4b0ca80f47d6d01674a8a3d8dc19">Gst::StructureChangeType</a> Gst::MessageStructureChange::parse </td>
<td>(</td>
<td class="paramname"></td>
<td> ) </td>
<td> const</td>
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<p>Extracts the change type from the Gs::tMessage. </p>
<p>MT safe.</p>
<dl class="return"><dt><b>Returns:</b></dt><dd>The change type.</dd></dl>
<p>Since 0.10.22. </p>
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<a class="anchor" id="a83973ce2f42fb48635825190c83690dd"></a><!-- doxytag: member="Gst::MessageStructureChange::parse" ref="a83973ce2f42fb48635825190c83690dd" args="(Gst::StructureChangeType &type, Glib::RefPtr< Gst::Element > &owner, bool &busy) const " -->
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<td class="memname">void Gst::MessageStructureChange::parse </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group__gstreamermmEnums.html#ga45bf4b0ca80f47d6d01674a8a3d8dc19">Gst::StructureChangeType</a>& </td>
<td class="paramname"> <em>type</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="elRef" href="../../../glibmm-2.4/reference/html/classGlib_1_1RefPtr.html">Glib::RefPtr</a>< <a class="el" href="classGst_1_1Element.html">Gst::Element</a> >& </td>
<td class="paramname"> <em>owner</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">bool & </td>
<td class="paramname"> <em>busy</em></td><td> </td>
</tr>
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<td></td>
<td>)</td>
<td></td><td></td><td> const</td>
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<p>Extracts the change type and completion status from the <a class="el" href="classGst_1_1Message.html" title="A class that represents lightweight objects to signal the application of pipeline...">Gst::Message</a>. </p>
<p>MT safe.</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>type</em> </td><td>A reference to hold the change type. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>owner</em> </td><td>The owner element of the message source. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>busy</em> </td><td>A reference to hold whether the change is in progress or has been completed.</td></tr>
</table>
</dd>
</dl>
<p>Since 0.10.22. </p>
</div>
</div>
<a class="anchor" id="af1c03951452cc974b63e834501098f68"></a><!-- doxytag: member="Gst::MessageStructureChange::parse_busy" ref="af1c03951452cc974b63e834501098f68" args="() const " -->
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<td class="memname">bool Gst::MessageStructureChange::parse_busy </td>
<td>(</td>
<td class="paramname"></td>
<td> ) </td>
<td> const</td>
</tr>
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<p>Extracts the completion status from the <a class="el" href="classGst_1_1Message.html" title="A class that represents lightweight objects to signal the application of pipeline...">Gst::Message</a>. </p>
<p>MT safe.</p>
<dl class="return"><dt><b>Returns:</b></dt><dd>whether the change is in progress or has been completed.</dd></dl>
<p>Since 0.10.22. </p>
</div>
</div>
<a class="anchor" id="a6193443841d284b0613a68ee2093e3ce"></a><!-- doxytag: member="Gst::MessageStructureChange::parse_owner" ref="a6193443841d284b0613a68ee2093e3ce" args="() const " -->
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<td class="memname"><a class="elRef" href="../../../glibmm-2.4/reference/html/classGlib_1_1RefPtr.html">Glib::RefPtr</a><<a class="el" href="classGst_1_1Element.html">Gst::Element</a>> Gst::MessageStructureChange::parse_owner </td>
<td>(</td>
<td class="paramname"></td>
<td> ) </td>
<td> const</td>
</tr>
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<p>Extracts the owner from the <a class="el" href="classGst_1_1Message.html" title="A class that represents lightweight objects to signal the application of pipeline...">Gst::Message</a>. </p>
<p>MT safe.</p>
<dl class="return"><dt><b>Returns:</b></dt><dd>The owner element of the message source.</dd></dl>
<p>Since 0.10.22. </p>
</div>
</div>
<hr/>The documentation for this class was generated from the following file:<ul>
<li>gstreamermm/message.h</li>
</ul>
</div>
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