$querywin(<target>)
$querywin(<target> <server refnum>)

This function returns the window owning the query target <target>, or “-1” if there are no queries for <target>. An optional server refnum argument may be specified in order to obtain the query window for a target on a particular server.

The window refnum of the window owning <target> or “-1” if none is found.

/window refnum 2
/query =person
/eval echo $querywin(=person)                    /* returns 2 */