UPC or Barcode Scanners

[Ray Bennett]

I use a WASP USB barcode scanner in a HyperCard application that I'm 
porting to Rev.  Haven't ported it yet, but see no reason it _shouldn't_ 
be straightforward.  The trick is that the scanner is programmable. 
 Meaning that you can program it to send a preamble (read, "handler 
name") when it reads a code.  For me, I just named the preamble "wasp".  

Then, in my Home stack (main stack in Rev), I have the handler  "on wasp 
barcode".  

When you "gun" a code, the barcode reader sends keyboard input that 
looks like this:
    wasp "Francis Bacon 125"

I put the "on wasp" handler at the top of the hierarchy so that all of 
my substacks could avail themselves of it.  

Hope this helps.
Ray

Roger.E.Eller at sealedair.com wrote:

>Has anyone used Revolution to capture input from barcode readers/scanners
>connected via serial or USB? I have tried without success. The unit beeps,
>telling me the UPC is valid, but I get no text in my field. I have tried
>the examples on opening and reading from serial ports in the Rev help. I
>also tried the TEST SERIAL Rev app that was provided here on the list
>several months ago. Is there a preferred type or brand of UPC scanner that
>works best with Rev? Is there some sample scripts available that does this
>sort of thing that I could use as a guide/tutorial?
>
>Kind Regards,
>Roger Eller
>roger.e.eller at sealedair.com
>
>
>
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