Inherits from BCKCode : NSObject
Conforms to BCKCoding
Declared in BCKEAN2SupplementCode.h


Specialized subclass of BCKCode to represent an EAN-2 Supplement code. EAN-2 supplement codes must consist of 2 numeric characters, alpha numeric characters are not supported.

EAN-2 supplement codes may be used in combination with ISSN barcodes to encode magazine and periodical issue numbers.