Checksum calculated drawing barcode 1D

Discussions about 1D barcode reading and writing
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Posts: 11
Joined: Fri May 19, 2017 3:08 pm

Checksum calculated drawing barcode 1D

Post by elisacosta » Mon Jul 17, 2017 4:26 pm

Hi all,
I'm using GdPicture 12.
I'd like to have some method that process data adding checksum digit, generating barcode 1D images.
Does something like this already exist in GDPicture in versions after 12?
In version 12 I've found only method Barcode1DReaderBarcodeHasChecksum that returns if a barcode to be read has a checksum digit or not.

I need to calculate check sum digit on data processed.

Thank you,

Best regards

Elisa Costa

Posts: 36
Joined: Mon Jul 11, 2016 9:35 am

Re: Checksum calculated drawing barcode 1D

Post by Costinel » Tue Jul 25, 2017 7:30 am

Hi Elisa,

GdPicture does not currently provide a method for checksum computation.
The checksum, if present, is different for each 1D barcode type. Please let me know what barcode type are you using to encode your data, and I will explain how to compute the checksum.

Best regards,
Costinel Mitrea

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