<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>preferred.mediaobject.role</title><link rel="stylesheet" type="text/css" href="../reference.css"><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"><link rel="home" href="../index.html" title="DocBook XSL Stylesheets: Reference Documentation"><link rel="up" href="graphics.html" title="Graphics"><link rel="prev" href="default.image.width.html" title="default.image.width"><link rel="next" href="use.role.for.mediaobject.html" title="use.role.for.mediaobject"><link rel="copyright" href="copyright.html" title="License"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">preferred.mediaobject.role</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="default.image.width.html">Prev</a> </td><th width="60%" align="center">Graphics</th><td width="20%" align="right"> <a accesskey="n" href="use.role.for.mediaobject.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="preferred.mediaobject.role"></a><div class="titlepage"></div> <div class="refnamediv"><h2><span class="refentrytitle">preferred.mediaobject.role</span></h2><p> preferred.mediaobject.role — Select which mediaobject to use based on this value of an object's <code class="sgmltag-attribute">role</code> attribute. </p></div> <div class="refsynopsisdiv"><h2>Synopsis</h2> <a name="preferred.mediaobject.role.frag"></a><pre class="programlisting"> <xsl:param name="preferred.mediaobject.role"></xsl:param> </pre> </div> <div class="refsection"><a name="idp5456192"></a><h2>Description</h2> <p>A mediaobject may contain several objects such as imageobjects. If the parameter <a href="../html/use.role.for.mediaobject.html"><em class="parameter"><code>use.role.for.mediaobject</code></em></a> is non-zero, then the <code class="literal">role</code> attribute on <a href="http://docbook.org/tdg5/en/html/imageobject.html"><code class="sgmltag-element">imageobject</code></a>s and other objects within a <a href="http://docbook.org/tdg5/en/html/mediaobject.html"><code class="sgmltag-element">mediaobject</code></a> container will be used to select which object will be used. If one of the objects has a role value that matches the <a href="../html/preferred.mediaobject.role.html"><em class="parameter"><code>preferred.mediaobject.role</code></em></a> parameter, then it has first priority for selection. If more than one has such a role value, the first one is used. </p> <p> See the <a href="../html/use.role.for.mediaobject.html"><em class="parameter"><code>use.role.for.mediaobject</code></em></a> parameter for the sequence of selection.</p> </div> </div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="default.image.width.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="graphics.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="use.role.for.mediaobject.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">default.image.width </td><td width="20%" align="center"><a accesskey="h" href="../index.html">Home</a></td><td width="40%" align="right" valign="top"> use.role.for.mediaobject</td></tr></table></div></body></html>