title: submiting form form webrowser with qrscanner in windows form c#
body: <p>i'm developing simple app control which starting an specific website from localhost in client net. the idea is that he will control all website with qrscanner by reading specific qrcodes.</p>
  
  <p>I tried to listen specific PreviewKeyDown Events but it's only reading one keypress.</p>
  
  <p>What is the best way to "listen" keypresses in this case?</p>
  
  <p>I want that, if user whenever he will be ( but not in 2 input forms which providing order code and user code - also from qr code - when he use qr code and read code like: " #cmd#001 " it will run for example messagebox - you've done it ( in final version form will be sended )</p>