<td>the head element of <em class="parameter"><code>queue</code></em> or NULL when the queue is empty.</td>
168
<td>the head element of <em class="parameter"><code>queue</code></em> or NULL when
169
the queue is empty. <span class="annotation">[<acronym title="Don't free data after the code is done."><span class="acronym">transfer none</span></acronym>]</span>
<td>the head element of <em class="parameter"><code>queue</code></em> or NULL when the queue is empty.</td>
192
<td>the head element of <em class="parameter"><code>queue</code></em> or NULL when
193
the queue is empty. <span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span>