title: Read a QR barcode with UWP - Windows 10
body: <p>I need build a UWP app that can (phone/tablet) use the camera to read a QR barcode from a computer screen. I need to detect the QR barcode as camera is on as I don't want to take a screenshot (or similar) and save this to file and then read it. It needs to be detected at run-time.</p>
  
  <p>Is there any MIT license code (in C#) I can use out there? </p>
  
  <p>Many apps who use this functionality tend to have a "target" window which is not using the entire screen. How can I achieve this as well?</p>
  
  <p>Can someone point me in the right direction as to how can I do this?</p>
  
  <p>Many Thanks.</p>