opy out</span></span> parameter, that is, one parameter and one result.)</li><li class="li-itemize">The return value of the IDL function is added to the outputs of
the Caml function (in first position), unless it is of type <span class=machine><span class=font-tt>void</span></span> or
of a type name that carries the <span class=machine><span class=font-tt>errorcode</span></span> attribute. In the latter
two cases, the return value of the IDL function is not transmitted to
Caml.
</li><li class="li-itemize">T