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<?xml version='1.0' encoding="utf-8"?>
<!DOCTYPE chapter
[
<!ENTITY ags "Advanced Gtk+ Sequencer">
]>
<!-- Copyright (C) 2005-2018 Jo\u00EBl Kr\u00E4hemann -->
<!-- Permission is granted to copy, distribute and/or modify this document -->
<!-- under the terms of the GNU Free Documentation License, Version 1.3 -->
<!-- or any later version published by the Free Software Foundation; -->
<!-- with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. -->
<!-- A copy of the license is included in the section entitled "GNU -->
<!-- Free Documentation License". -->
<chapter xmlns="http://docbook.org/ns/docbook" version="5.0">
<title>The node controller</title>
<para>
The <command>/node</command> context path returns the value assigned to node. The response type
tag matches the port value type held.
</para>
<sect1>
<title>Type tag and parameters</title>
<para>
The type tag of the request looks like following: <parameter class="command">,s</parameter>.
</para>
<table border="1">
<caption>Type tag description</caption>
<tgroup cols="3" align="left" colsep="1" rowsep="1">
<colspec colnum="1" colname="col1" colwidth="1*"/>
<colspec colnum="2" colname="col2" colwidth="1*"/>
<colspec colnum="3" colname="col3" colwidth="3*"/>
<thead>
<row>
<entry>index</entry>
<entry>type indentifier</entry>
<entry>value</entry>
</row>
</thead>
<tbody>
<row>
<entry>#0</entry>
<entry>s</entry>
<entry>Path is any valid accessor for properties or port value.</entry>
</row>
</tbody>
</tgroup>
</table>
<para>
The path supports indices, ranges, wildcard or some even names as accessors. This 2 examples shows you
the access to an AgsAudio port and AgsChannel:
</para>
<itemizedlist>
<listitem>
/AgsSoundProvider/AgsAudio[0]/AgsMuteAudio[0]/AgsPort["./muted[0]"]:value
</listitem>
<listitem>
/AgsSoundProvider/AgsAudio[0]/AgsInput[0]/AgsVolumeChannel[0]/AgsPort["./volume[0]"]:value
</listitem>
</itemizedlist>
<para>
The response contains as first argument of the type the tag the matching path. Followed by type or array
of types requested. The requested value follows the path argument.
</para>
</sect1>
</chapter>
|
