an class="Other">:</span> <span class="StringLit">&quot;uv.h&quot;</span></div><span class="Other pragmaend">.}</span></pre></dt>
<dd>
Set the multicast interface to send or receive data on. Returns 0 on success, or an error code &lt; 0 on failure.<ul class="simple"><li><cite>handle</cite>: UDP handle. Should have been initialized with <tt class="docutils literal"><span class="pre">intit</span></tt>.</li>
<li><cite>interfaceAddr</cite>: interface address. </li>
</ul>

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