barcode scanner can not connect to the application to call the data from the database

I am currently working on software for student attendance. I use the flex / flash and php to create the software but I faced a problem barcode scanner, can not connect to the application to call the data from the database when students sc开发者_StackOverflow中文版an the barcode printed on their student card.

Can you help me to make the script so that it can run on flex / flash and php. it makes me crazy for a week to seek a way out …. please help me: (

thanks,

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All barcode scanners I've used work like any other input device. Make sure a text input in your Flex app has focus. Then scan, and the input should show up in the text field.

When I last built something like this; the last key from the scan was an enter key. I don't remember if we added that explicitly when generating the bar codes or it was automatically part of it. But, we keyed off that carriage return to perform processing.