title: Using a barcode scanner in winRT application
body: <p>I would like to create a new winRT (metro) application.
  It is essential however that I can handle input from a barcode scanner in this application.  I've searched here and there, but until now haven't found any guidance on doing such a thing.
  Or if this is even possible in a metro style application.
  So:
  - Is it possible?
  - Maybe an example on how this can be done?</p>
  
  <p>Note: for the moment it would be OK if I have a solution for USB barcode scanners only.
  Others (serial, bluetooth) are nice but not essential...</p>