RFC_PARAMETER 
The structure
Syntax
typedef struct {void * name;
unsigned nlen;
unsigned type;
unsigned leng;
void * addr;
} RFC_PARAMETER;
provides RFC parameters. It describes 'Exporting' and 'Importing' parameters of a function module.
This structure is defined in SAPRFC.H.
name
name of the field (in the interface definition of the function)
nlen
length of the name (should be strlen(name))
type
data type of the field
leng
length of the field in bytes
addr
address of the field to be exported or imported
See also RFC_CHAR, RFC_NUM, RFC_BYTE, RFC_BCD, RFC_INT, RFC_INT1, RFC_INT2, RFC_FLOAT, RFC_DATE, and RFC_TIME.