n.&nbsp; Thus, each ID is represented as an array
(possibly of size 1) of integers.&nbsp; Applications that use other data
types for their IDs can convert between their data types and Zoltan's in
the <a href="ug_query.html">application-registered query functions</a>.
<h3>
<a NAME="fortran ug api query"></a>Query function data</h3>
<b><a href="ug_interface_init.html#Zoltan_Set_Fn">Zoltan_Set_Fn</a></b> allows
the application to pass a pointer to data that will subsequently be passed
to the query function bei