Java Programming

Hi there. I know how to do keyboard shortcuts inside an application in java. The thing is, I can't figure how to add a keyboard shortcut outside of the application (let's say the platform would be Windows) to execute a specific block of code inside my application. I would like to use a keyboard shortcut (let's say CTRL+ALT+X or anything else that would be rarely used by other applications) to open up a small JDialog (I'm using swing components) in the application. The user would be able to use that shortcut anywhere in his windows platform.

Thanks a lot in advance. Refer me to any topics who have already talked about this situation because I couldn't find it anywhere on the web or post in if you got the answer. Thanks a lot!