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Emm

How do PDF417 Columns work?

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I am using the PDF417 control in Visual FoxPro (Don't laugh we have a lot of code in this language) to print bar codes. I see that you can specify the number of columns in the properties. How does this work? If I specify for example 5 columns. How do I tell the control which column to use when I send a data string to encode?
Data example: 45845A
By Road
12.56
1500.9
125.08

Also, what is RS or GS? Do I need this in the bar code and do I use it?

Thanks in advance

05-30-14 10.3 year(s) ago

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Ben	Best Answer The number of Columns determines the width of the PDF417 barcode by adding codewords which are a group of bars. This will decrease the modules in each Row and create a vertically shorter barcode. PDF417 Image set to 2 Columns PDF417 Image set to 3 Columns How do PDF417 Rows Work? ASCII TABLE RS is the Record Separator GS is the Group Separator EOT is the End of Transmission To encode these functions in a PDF417 barcode: (1) Set the ApplyTilde or ProcessTilde parameter/property to True/Enabled/Yes. (2) Set the Encoding Mode of PDF417 to Binary (3) Encode the RS using ~030. Encode the GS using ~029. Encode the End of Transmission using ~004. Posted 10.3 year(s) ago (0) (0) Report Abuse

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Other Answers (2)

Ben	It is possible to specify the number of Columns but it is not possible to specify which data goes into a particular column. When the barcode is scanned, it reads as continuous data. Posted 10.3 year(s) ago (0) (0) Report Abuse

Emm

Hi Ben,

Thanks for the info.

If you set the barcode to have 3 columns how do you specify what data goes into what column? The DataToEncode property accepts a string value. Sure there must be some delimiter that you would define.

This is the data I want to store in the barcode:
45845A
By Road
12.56
1500.9
125.08

Posted 10.3 year(s) ago

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