Fonction ISBTNumericPair

Returns an ISBT Numeric Pair check digit for String.

ISBTNumericPair(String, AppendString)

Where:

• String is the barcode data used to calculate the check digit.

• AppendString is an optional string defining whether to return the string along with the calculated check digit.

When calculating a check digit, you have the option to return just the check digit, or to return the check digit appended to a copy of the encoded data (String).

• To return just the check digit, set AppendString to False.

• To return check digit appended to a copy of String, set AppendString to True.

The AppendString attribute is assumed False if not specified.