Return PGresult

Hi,
PGresult is a structure.
I want to return PGresult pointer.(Code is given below.)
Is this possible ? if yes , please give me the solution.
Thanks in Advance.
Anuj
===========================
/* tempdb=>create table tbltemp (id int4, name varchar(30)); */
#include <stdio.h>
#include <pgsql/libpq-fe.h>

main()
{
int totalrec;
PGresult *resu;
dbQuery("tempdb","select * from tbltemp",&totalrec,resu);
printf("\n The total rec = %i\n", totalrec);
printf(" The total rec = %i\n", PQntuples(resu));
} /* End of main */

dbQuery(char * dbName, char *sqlstatement , int *totalrec,PGresult *res)
{
PGconn *conn;
char fullsql[500];
conn = PQsetdb(NULL, NULL, NULL, NULL, dbName);
res = PQexec(conn, "BEGIN");
PQclear(res);
strcpy(fullsql , "DECLARE mycursor CURSOR FOR ");
strcat(fullsql,sqlstatement);
res = PQexec(conn, fullsql);
PQclear(res);
res = PQexec(conn, "FETCH ALL in mycursor");
*totalrec = PQntuples(res);
}
===========================

Out put :
$
The total rec = 2 // This result is right.
The total rec = 0 // The same result is not showing.
$