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Keyboard based barcode scanners.

P: n/a
I have a barcode scanner that hooks up to a keyboard port. I've figured
out how to setup a system-wide keyboard hook. However, how do I
distinguish regular keyboard input from the barcode scanner input. Does
anyone have any ideas?

Thanks.
Nov 21 '05 #1
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2 Replies


P: n/a
I cannot imagine that it is possible.

That is like trying to detect a hardware keylogger. Not gonna happen.

My .02
Greg

"Frank Rizzo" <no****@nospam.com> wrote in message
news:eR*************@tk2msftngp13.phx.gbl...
I have a barcode scanner that hooks up to a keyboard port. I've figured
out how to setup a system-wide keyboard hook. However, how do I distinguish
regular keyboard input from the barcode scanner input. Does anyone have
any ideas?

Thanks.

Nov 21 '05 #2

P: n/a
You cannot! The only way to detect is to calculate the speed of completion
(even this won't be sure because it could be a Paste operation).

--

HTH

Éric Moreau, MCSD, Visual Developer - Visual Basic MVP
Conseiller Principal / Senior Consultant
Concept S2i inc.(www.s2i.com)
"Frank Rizzo" <no****@nospam.com> wrote in message
news:eR*************@tk2msftngp13.phx.gbl...
I have a barcode scanner that hooks up to a keyboard port. I've figured
out how to setup a system-wide keyboard hook. However, how do I
distinguish regular keyboard input from the barcode scanner input. Does
anyone have any ideas?

Thanks.

Nov 21 '05 #3

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