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Problem with checksum for UPC barcode
Hi! In my app i need to draw UPC barcode, and the problem is, that it computes checksum even if it's already appended to the end. For example, this is a correct barcode 210000001147 and when i'm passing it to drawing function, i'm getting this 100000011162. Seems like it is removing first digit and calculating checksum again. Any help will be really appreciated.