title: Is there any way to use hidden html field to read barcode?
body: <p>I'm trying to find a way to hide input field used to read barcode but I don't know if it's possible. I'm using Python/Django framework.</p>
  
  <p>Everything works fine with TextInput widget : I set autofocus on the field, submit on change and put a "start reading" button to set focus in case user remove it. When I replace by HiddenInput, it doesn't work anymore. I think focus is not relevant with hidden input, am I right ?</p>
  
  <p>Someone has an idea ? If not, I will let it displayed...</p>
  
  <p>Thx</p>