Generate Barcodes in LabVIEW

[Jervin Justin]

The IMAQ VIs are great for recognizing barcodes that are scanned.

On the flip side, there's not a really portable way to generate a barcode in LabVIEW (without having to install a barcode font). The nicest approach would be to have a custom control that has string datatype, and then on the front panel, the string gets displayed as a barcode!

Other approaches could involve using a picture control or something as well.

[AristosQueue (NI)]

Just use a barcode font. There are many of them available on the web. Here's one for example that is free: http://www.barcodesinc.com/free-barcode-font/

[PhillipBrooks]

Simple numeric barcodes are possible with fonts, but most barcodes require calculating a checksum and/or start-stop characters. 2D barcodes are a different matter and wouldn't work as a font.

Was this suggestion in any way related to this LabVIEW/TestStand question?

If using TestStand, you could use various barcode software packages that include an API to create an image (in memory or as a file) and place this in the report.

You can also use the Google Chart API to create QR codes

http://chart.apis.google.com/chart?cht=qr&chs=200x200&chl=LabVIEW+Rocks&choe=UTF-8

[AristosQueue (NI)]

> but most barcodes require calculating a checksum and/or start-stop characters.

Interesting. I did not know that.

[Mr.Mike]

I'm actually working on this as a side project.  I'm implementing UPC, EAN-13, and Code 39 (AKA 3 of 9).  Do you have any other suggestions?  I was thinking Code 128.  Currently my framework only works for 1D barcodes, but I could conceivably expand it for 2D barcodes (QR, DataMatrix).

- Mike

[Mr.Mike]

I just posted the beginning of my barcode project in the NI Developer Community: http://decibel.ni.com/content/docs/DOC-14718.

[sanss]

hi, 

Am not able to read the barcodes as well as 2D codes from images(photographs) using labview. It shows code not found. Can someone help with this? 

[RavensFan]

This forum is for posting new ideas for LabVIEW and commenting on them.  You've posted a troubleshooting question which belongs in the LabVIEW forum.