How to handle window application events?

Question

Java

There is a window application. How do I make it listen to my keypress events outside the application window (at the OS level)
For example, if I open a browser, my application no longer responds to the keys I press.

Answer 1

First of all, this event must be intercepted
https://code.google.com/p/jintellitype/ - for Windows
habrahabr.ru/post/124567