pay point

Good morning to all
I wonder if anyone can help me with something I want to develop in fabrik. I want to do is create a form with a field that captures the information of a bar code and then displayed on the data grid, basically what we see in the payout of supermarkets. and make the form with field data capture with the java option to load I focus for the reader to take the data, save the record, but I could not do that in the same form show me what you have loaded.
thanks for your help
 
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