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<div class="navpath"><a class="el" href="namespaceGst.html">Gst</a>::<a class="el" href="classGst_1_1MessageStateChanged.html">MessageStateChanged</a>
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<h1>Gst::MessageStateChanged Class Reference</h1><!-- doxytag: class="Gst::MessageStateChanged" --><!-- doxytag: inherits="Gst::Message" -->
<p>A state change message. <a href="#_details">More...</a></p>
<p>Inherits <a class="el" href="classGst_1_1Message.html">Gst::Message</a>.</p>
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Collaboration diagram for Gst::MessageStateChanged:</div>
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<div class="center"><img src="classGst_1_1MessageStateChanged__coll__graph.png" border="0" usemap="#Gst_1_1MessageStateChanged_coll__map" alt="Collaboration graph"/></div>
<map name="Gst_1_1MessageStateChanged_coll__map" id="Gst_1_1MessageStateChanged_coll__map">
<area shape="rect" href="classGst_1_1Message.html" title="Gst::Message - Lightweight objects to signal the application of pipeline events." alt="" coords="45,83,149,112"/><area shape="rect" href="classGst_1_1MiniObject.html" title="Gst::MiniObject" alt="" coords="41,5,153,35"/></map>
<center><span class="legend">[<a href="graph_legend.html">legend</a>]</span></center></div>
<p><a href="classGst_1_1MessageStateChanged-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_1MessageStateChanged.html#a7206defc719d21104d7447c5b6b4ffa3">MessageStateChanged</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_1MessageStateChanged.html#a4ab1dd017ab6276f2dcf9e9a13675f8e">parse</a> (<a class="el" href="group__gstreamermmEnums.html#gabb043e1d41659fd842f10949f91e7a7f">State</a>& oldstate, <a class="el" href="group__gstreamermmEnums.html#gabb043e1d41659fd842f10949f91e7a7f">State</a>& newstate, <a class="el" href="group__gstreamermmEnums.html#gabb043e1d41659fd842f10949f91e7a7f">State</a>& pending) const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Extracts the old, new and pending states from the <a class="el" href="classGst_1_1MessageStateChanged.html" title="A state change message.">Gst::MessageStateChanged</a>. <a href="#a4ab1dd017ab6276f2dcf9e9a13675f8e"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__gstreamermmEnums.html#gabb043e1d41659fd842f10949f91e7a7f">State</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1MessageStateChanged.html#acc526d6c723129e59e761dc6fd0ffc9b">parse</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Extracts and returns the new state from the <a class="el" href="classGst_1_1MessageStateChanged.html" title="A state change message.">Gst::MessageStateChanged</a>. <a href="#acc526d6c723129e59e761dc6fd0ffc9b"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__gstreamermmEnums.html#gabb043e1d41659fd842f10949f91e7a7f">State</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1MessageStateChanged.html#a22094c7a1677427035e786b0eccc6a92">parse_old</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Extracts and returns the old state from the <a class="el" href="classGst_1_1MessageStateChanged.html" title="A state change message.">Gst::MessageStateChanged</a>. <a href="#a22094c7a1677427035e786b0eccc6a92"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__gstreamermmEnums.html#gabb043e1d41659fd842f10949f91e7a7f">State</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1MessageStateChanged.html#acae26850e04361a7854a309dd0e9cd95">parse_pending</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Extracts and returns the pending state from the <a class="el" href="classGst_1_1MessageStateChanged.html" title="A state change message.">Gst::MessageStateChanged</a>. <a href="#acae26850e04361a7854a309dd0e9cd95"></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_1MessageStateChanged.html#af36d9fa7b35cb5afe2618b3cbe7d1812">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#gabb043e1d41659fd842f10949f91e7a7f">State</a> oldstate, <a class="el" href="group__gstreamermmEnums.html#gabb043e1d41659fd842f10949f91e7a7f">State</a> newstate, <a class="el" href="group__gstreamermmEnums.html#gabb043e1d41659fd842f10949f91e7a7f">State</a> pending)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Create a state change message. <a href="#af36d9fa7b35cb5afe2618b3cbe7d1812"></a><br/></td></tr>
</table>
<hr/><a name="_details"></a><h2>Detailed Description</h2>
<p>A state change message. </p>
<p>See <a class="el" href="classGst_1_1MessageStateChanged.html#af36d9fa7b35cb5afe2618b3cbe7d1812" title="Create a state change message.">create()</a> for more details. </p>
<hr/><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" id="a7206defc719d21104d7447c5b6b4ffa3"></a><!-- doxytag: member="Gst::MessageStateChanged::MessageStateChanged" ref="a7206defc719d21104d7447c5b6b4ffa3" args="(GstMessage *castitem)" -->
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<td class="memname">Gst::MessageStateChanged::MessageStateChanged </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="af36d9fa7b35cb5afe2618b3cbe7d1812"></a><!-- doxytag: member="Gst::MessageStateChanged::create" ref="af36d9fa7b35cb5afe2618b3cbe7d1812" args="(const Glib::RefPtr< Gst::Object > &src, State oldstate, State newstate, State pending)" -->
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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::MessageStateChanged::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#gabb043e1d41659fd842f10949f91e7a7f">State</a> </td>
<td class="paramname"> <em>oldstate</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__gstreamermmEnums.html#gabb043e1d41659fd842f10949f91e7a7f">State</a> </td>
<td class="paramname"> <em>newstate</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__gstreamermmEnums.html#gabb043e1d41659fd842f10949f91e7a7f">State</a> </td>
<td class="paramname"> <em>pending</em></td><td> </td>
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<td></td>
<td>)</td>
<td></td><td></td><td><code> [static]</code></td>
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<p>Create a state change message. </p>
<p>This message is posted whenever an element changed its state.</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>oldstate</em> </td><td>The previous state. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>newstate</em> </td><td>The new (current) state. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>pending</em> </td><td>The pending (target) state. </td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>The new state change message. MT safe. </dd></dl>
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<a class="anchor" id="acc526d6c723129e59e761dc6fd0ffc9b"></a><!-- doxytag: member="Gst::MessageStateChanged::parse" ref="acc526d6c723129e59e761dc6fd0ffc9b" args="() const " -->
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<td class="memname"><a class="el" href="group__gstreamermmEnums.html#gabb043e1d41659fd842f10949f91e7a7f">State</a> Gst::MessageStateChanged::parse </td>
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<td class="paramname"></td>
<td> ) </td>
<td> const</td>
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<p>Extracts and returns the new state from the <a class="el" href="classGst_1_1MessageStateChanged.html" title="A state change message.">Gst::MessageStateChanged</a>. </p>
<p>MT safe.</p>
<dl class="return"><dt><b>Returns:</b></dt><dd>The new (current) state. </dd></dl>
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</div>
<a class="anchor" id="a4ab1dd017ab6276f2dcf9e9a13675f8e"></a><!-- doxytag: member="Gst::MessageStateChanged::parse" ref="a4ab1dd017ab6276f2dcf9e9a13675f8e" args="(State &oldstate, State &newstate, State &pending) const " -->
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<td class="memname">void Gst::MessageStateChanged::parse </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group__gstreamermmEnums.html#gabb043e1d41659fd842f10949f91e7a7f">State</a>& </td>
<td class="paramname"> <em>oldstate</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__gstreamermmEnums.html#gabb043e1d41659fd842f10949f91e7a7f">State</a>& </td>
<td class="paramname"> <em>newstate</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__gstreamermmEnums.html#gabb043e1d41659fd842f10949f91e7a7f">State</a>& </td>
<td class="paramname"> <em>pending</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 old, new and pending states from the <a class="el" href="classGst_1_1MessageStateChanged.html" title="A state change message.">Gst::MessageStateChanged</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>oldstate</em> </td><td>The previous state. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>newstate</em> </td><td>The new (current) state. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>pending</em> </td><td>The pending (target) state. </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="a22094c7a1677427035e786b0eccc6a92"></a><!-- doxytag: member="Gst::MessageStateChanged::parse_old" ref="a22094c7a1677427035e786b0eccc6a92" args="() const " -->
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<td class="memname"><a class="el" href="group__gstreamermmEnums.html#gabb043e1d41659fd842f10949f91e7a7f">State</a> Gst::MessageStateChanged::parse_old </td>
<td>(</td>
<td class="paramname"></td>
<td> ) </td>
<td> const</td>
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<p>Extracts and returns the old state from the <a class="el" href="classGst_1_1MessageStateChanged.html" title="A state change message.">Gst::MessageStateChanged</a>. </p>
<p>MT safe.</p>
<dl class="return"><dt><b>Returns:</b></dt><dd>The old state. </dd></dl>
</div>
</div>
<a class="anchor" id="acae26850e04361a7854a309dd0e9cd95"></a><!-- doxytag: member="Gst::MessageStateChanged::parse_pending" ref="acae26850e04361a7854a309dd0e9cd95" args="() const " -->
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<td class="memname"><a class="el" href="group__gstreamermmEnums.html#gabb043e1d41659fd842f10949f91e7a7f">State</a> Gst::MessageStateChanged::parse_pending </td>
<td>(</td>
<td class="paramname"></td>
<td> ) </td>
<td> const</td>
</tr>
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<p>Extracts and returns the pending state from the <a class="el" href="classGst_1_1MessageStateChanged.html" title="A state change message.">Gst::MessageStateChanged</a>. </p>
<p>MT safe.</p>
<dl class="return"><dt><b>Returns:</b></dt><dd>The pending state. </dd></dl>
</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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