title: How to capture printscreen event in Javascript?
body: <p>I'm trying to write a web application which has some sensitive content in it. I have already prevented copy-and-paste. How do I detect when someone presses the printscreen key, so that the data may be hidden when that is pressed?</p>
  
  <p>Do not worry about mobile phones/cameras/ screen recording software, as they are not used in the environment.</p>