How to fetch the RefCursor in via ODBC??

Hi All,
I wrote a function to return a RefCursor of a temp table as below:

CREATE FUNCTION reffunc(refcursor, varchar(10), varchar(10))
RETURNS refcursor AS '
BEGIN
EXECUTE ''create local temp table tablexxx
(repno character(15), date date)'';
insert into tablexxx (repno, date) VALUES ( $2, now() );
insert into tablexxx (repno, date) VALUES ( $3, now() );
OPEN $1 for EXECUTE '' SELECT * FROM tablexxx '';
RETURN $1;
EXECUTE '''';
END;
' LANGUAGE 'plpgsql';

It work fine on psql, at least it work as I expected. I call this
function by following command on psql:

BEGIN;
SELECT reffunc('funccursor', 'AAA', 'BBB' );
FETCH ALL FROM funccursor;
COMMIT;

However, when I try to call this function via ODBC ( namely in the
Borland DBExplorer ). It got none information for me! I am wondoring
is ODBC supporting RefCursor, since the FAQ of GBorg said the ODBC
only support simple data type. Therefore, does ODBC support
refcursor??

PS: My psqlODBC version is 07.03.0100
My psql version is 7.3.1
Harry Yau
MIS HK