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<html><head><meta charset="ISO-8859-1"><title>8.Options</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot"><link rel="home" href="index.html" title="YAZ User's Guide and Reference"><link rel="up" href="zoom.html" title="Chapter3.ZOOM"><link rel="prev" href="zoom.extendedservices.html" title="7.Extended Services"><link rel="next" href="zoom.queryconversions.html" title="9.Query conversions"></head><body><link rel="stylesheet" type="text/css" href="common/style1.css"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">8.Options</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="zoom.extendedservices.html">Prev</a></td><th width="60%" align="center">Chapter3.ZOOM</th><td width="20%" align="right"><a accesskey="n" href="zoom.queryconversions.html">Next</a></td></tr></table><hr></div><div class="sect1"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="zoom.options"></a>8.Options</h2></div></div></div><p>
Most <acronym class="acronym">ZOOM</acronym> objects provide a way to specify options to change behavior.
From an implementation point of view, a set of options is just like
an associative array / hash.
</p><pre class="synopsis">
ZOOM_options ZOOM_options_create(void);
ZOOM_options ZOOM_options_create_with_parent(ZOOM_options parent);
void ZOOM_options_destroy(ZOOM_options opt);
</pre><pre class="synopsis">
const char *ZOOM_options_get(ZOOM_options opt, const char *name);
void ZOOM_options_set(ZOOM_options opt, const char *name,
const char *v);
</pre><pre class="synopsis">
typedef const char *(*ZOOM_options_callback)
(void *handle, const char *name);
ZOOM_options_callback
ZOOM_options_set_callback(ZOOM_options opt,
ZOOM_options_callback c,
void *handle);
</pre></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="zoom.extendedservices.html">Prev</a></td><td width="20%" align="center"><a accesskey="u" href="zoom.html">Up</a></td><td width="40%" align="right"><a accesskey="n" href="zoom.queryconversions.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">7.Extended Services</td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top">9.Query conversions</td></tr></table></div></body></html>
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