One way that I have done this previously is to define a preamble
character on the barcode scanner, then have a javascript event handler
watching for this character to detect input coming form the barcode
scanner. Defining it to some non visible character was enough safe guard
against someone typing something that looked like a barcode scan and
confusing the system.
- Mike
On 4/10/2010 12:45, Aaron Cooper wrote:
Has anyone had any experience with getting USB devices to execute
events on web pages? (Webcam would be an example)
We have a central application and hardware that we want to enhance
with a USB barcode scanner. A global design goal is for the
application to post data to a new page as soon as a scan is performed,
without user action.
Javascript and hidden fields have their limitation in this respect, so
I am thinking along the lines of ActiveX here. Just wanted to see if
anyone here has done something similar.
Cheers
Aaron
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