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barcode reader integration in web application

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  barcode reader integration in web application renjith raj <renjithraj2005@gmail.com> - 2011-07-02 09:14 -0700
    Re: barcode reader integration in web application "Peter H. Coffin" <hellsop@ninehells.com> - 2011-07-02 13:00 -0500
    Re: barcode reader integration in web application Gregor Kofler <usenet@gregorkofler.com> - 2011-07-02 20:53 +0200

#2426 — barcode reader integration in web application

We have a customer in need for a new on-line library managing
application. Taking all things into consideration, web application
seems the way to go. However, they also use bar code readers for
issuing and returning books. This bar code reader is connected to a
user machine and we need to access it from our server

How to read those bar codes into web application? Any ideas, how to do
it? Java applet, flash, ActiveX or something different?

Scanners are Datalogic Forumula 732e and Metrologic Scanpal. Web
application will be PHP running on Apache web server

Thanks and Regards
Renjith Raj

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#2427

On Sat, 2 Jul 2011 09:14:06 -0700 (PDT), renjith raj wrote:
> We have a customer in need for a new on-line library managing
> application. Taking all things into consideration, web application
> seems the way to go. However, they also use bar code readers for
> issuing and returning books. This bar code reader is connected to a
> user machine and we need to access it from our server
>
> How to read those bar codes into web application? Any ideas, how to do
> it? Java applet, flash, ActiveX or something different?
>
> Scanners are Datalogic Forumula 732e and Metrologic Scanpal. Web
> application will be PHP running on Apache web server

The first scanner is an RS-232 one. You'll need to catch the incoming
data off the serial port. There's a "php-serial" class out there, but
I've never had a use for it, so I don't know much about it.

The second can have a keyboard wedge and thus requires no special
programming. You'll just pretend that someone using the scanner typed
the barcode value. Unless the customer has only an RS232 for the
scanners, in which case you're back to the class above.

-- 
40. I will be neither chivalrous nor sporting. If I have an unstoppable 
    superweapon, I will use it as early and as often as possible instead
    of keeping it in reserve.
	--Peter Anspach's list of things to do as an Evil Overlord

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#2428

Am 2011-07-02 18:14, renjith raj meinte:
> We have a customer in need for a new on-line library managing
> application. Taking all things into consideration, web application
> seems the way to go. However, they also use bar code readers for
> issuing and returning books. This bar code reader is connected to a
> user machine and we need to access it from our server
> 
> How to read those bar codes into web application? Any ideas, how to do
> it? Java applet, flash, ActiveX or something different?
> 
> Scanners are Datalogic Forumula 732e and Metrologic Scanpal. Web
> application will be PHP running on Apache web server

Who cares? The input will be generated on a *webpage* - correct? So it's
an HTML/JS/Browser issue at best. Frequently those scanners mimick
simple key presses. All it needs is a bog standard input field (which is
focused). Aim the scanner on your barcode and - voilá - the input
element is filled with the code. Submit the form and you are done.

Gregor


-- 
http://vxweb.net

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