/p>
</td></tr>
<tr><td class="val" id="idx">idx</td><td class="desc">
<p>For array values, this specifies the index to be returned.</p>
</td></tr>
<tr><td class="val" id="value">value</td><td class="desc">
<p>A pointer to memory into which to write the value.</p>
</td></tr>
<tr><td class="val" id="valen_len">valen_len</td><td class="desc">
<p>The size, in bytes, of the memory supplied for the value.</p>
</td></tr>
</table>

<h4>output</h4>
<table class="fields">
<tr><td class="val" id="value">value</td><td 