Reading barcode using vb.net code

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I need to add barcode reading feature to my application. I donot know how to enable my application to read barcodes.
I mean a scanner should read the barcode and having matched the article no. in database, info should be displayed on the screen.
Any code examples please?

Thanks

Posted 15-Oct-11 5:26am

Furqan Sehgal

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OriginalGriff · Answer 1 · 2011-10-15T05:29:00

Solution 1

Normally, this is not a problem - most barcode readers just plug in and act as a secondary input device. So when you want the barcode, you scan and the Article Number is entered as if it had been typed at the keyboard. It is often possible to configure them to use special prefixes, or to talk only when spoken to, but that requires a good read of the manul, or a talk to the manufacturer.

So. You don't need any code - it acts as a keyboard!

Posted 15-Oct-11 5:29am

OriginalGriff

Comments

Furqan Sehgal 15-Oct-11 12:00pm

Thanks ! but how shall I specify which field or textbox on my form the article no. goes, when read using a barcode scanner?

OriginalGriff 16-Oct-11 3:02am

Will depend on your scanner: talk to your manufacturer. Normal operation is that the data just comes in as a sequence of keystrokes - so you can't make it go anywhere unless the text cursor is there.

davfeu 17-Oct-11 5:46am

Most barcodescanners are configurable to use a start- and/or stop(key/keysequence). So you could use that to determinate if the input is a barcode or not.

Pravin Patil, Mumbai · Answer 2 · 2011-10-15T06:55:00

There are couple of Open source Barcode reader softwares that can be used with .net.
1. http://www.barcodelib.com/net_barcode_reader/main.html[^]
2. http://sourceforge.net/projects/barbara/[^]
3. http://code.google.com/p/zxing/source/browse/#svn/trunk/csharp[^]

To get started these articles may help you :
1. Reading Barcodes from an Image - II[^]
2. http://www.codeproject.com/script/common/404.aspx?aspxerrorpath=/kb/dotnet/barcodeimaging.aspx[^]
3. Controlling a Barcode Reader with POS for .NET[^]

Hope this helps.
All the best.