SAP Function RS_CUA_EXISTENCE_CHECK - Check whether a user interface exists for the specified program

Parameter	Reference	Type	Length	Default	Optional	Text
PROGRAM	TRDIR-NAME	C	40			Name of interface for checking

Parameter	Reference	Type	Length	Text
RCODE	SYST-SUBRC	I	4	Return code

Description
RCODE = 0: An interface exists.
RCODE <> 0: No interface exists.