This tutorial is supplemental to my other Global Hotkeys tutorial. That tutorial is for Windows Forms, whereas this is for WPF. However, I will not go into detail on things I've already covered in the previous tutorial, so please read that one as well as this one. Occasionally you'll write an application that needs to respond to hotkeys, even when your application is not focused. As described in my previous tutorial, there is no manged API for hotkeys. To use hotkeys, you'll need to use functions from the Win32 API.