ges here&gt; */</I>        

        }
    }</PRE><H4>
Hooking the callbacks into the arg_xxx structure</H4>
<P STYLE="margin-bottom: 0.51cm">There are no functions for
registering callbacks with arg_xxx structures, you simply write the
function pointers directly into the arg_xxx structure after it has
been constructed.</P>
<PRE CLASS="western">struct arg_int  *val = arg_intn(NULL,NULL,NULL,2,100,&quot;blah blah&quot;); 

/* replace the default arg_int parser routines with custom routines */
val-&gt;hdr.res