Index Hierarchy BCKGTINCode Class Reference Inherits from BCKCode : NSObject Conforms to BCKCoding Declared in BCKGTINCode.h Overview Abstract common root class for all members of the GTIN family of barcodes: BCKEAN8Code BCKEAN13Code BCKUPCACode BCKUPCECode BCKISBNCode BCKISSNCode Tasks – digitAtIndex: Instance Methods digitAtIndex: Convenience method to retrieve a digit by index. - (NSUInteger)digitAtIndex:(NSUInteger)index Parameters index The index of the digit. Return Value The digit value. Declared In BCKGTINCode.h Index Hierarchy