Lazarus

Miscellaneous => Suggestions => LCL => Topic started by: jshand2010 on May 19, 2012, 12:37:53 am

Title: Do we have a barcode scanner module in lcl?
Post by: jshand2010 on May 19, 2012, 12:37:53 am
sorry if this is in the wrong spot, but, just had to ask.

thanks again
Title: Re: Do we have a barcode scanner module in lcl?
Post by: ludob on May 19, 2012, 07:59:30 am
Most scanners are detected by the system as a keyboard. They inject the barcode as a sequence of keys correcponding to the decoded barcode, typically terminated by a Enter key.
Some scanners can be configured to insert a leading and trailing character to make distinction between barcode and keyboard entry easier. Read your barcode reader manual for the details.
Title: Re: Do we have a barcode scanner module in lcl?
Post by: Leledumbo on May 19, 2012, 10:37:05 am
Not in LCL, but there's a 3rd party package called SymScan (http://wiki.lazarus.freepascal.org/SymScan) (seems device specific)
Title: Re: Do we have a barcode scanner module in lcl?
Post by: jwdietrich on May 30, 2014, 07:33:43 pm
I think that jshand2010 wanted to ask if there is a package or unit that converts a barcode in form of an image file to numbers or text, i.e. a software solution in Free Pascal.

Of course, most barcode scanners are recognized as keyboards, but obviously that wasn't what jshand2010 was searching for. Likewise, these Excel barcode add-ins create barcodes from numbers or strings, but the question was for the oppositve conversion.
Title: Re: Do we have a barcode scanner module in lcl?
Post by: marcov on May 30, 2014, 09:18:24 pm
(Note from the moderator:  threads about barcodes seem to attract spammers that just post random links to C# barcode packages. We try to remove them as quick as possible. If you notice them, please report them)