Yes . You obtain a return value from a foreign function by assigning the
return value to an Oracle Forms variable or item. Make sure that the
Oracle Forms variable or item is the same data type as the return
value from the foreign function.
After assigning an Oracle Forms variable or item value to a PL/SQL
variable, pass the PL/SQL variable as a parameter value in the PL/SQL
interface of the foreign function. The PL/SQL variable that is passed as
a parameter must be a valid PL/SQL data type; it must also be the
appropriate parameter type as defined in the PL/SQL interface.