Registering a Keystroke from Anywhere on a Form

Hi all,

I have a form with a number of textboxes on it. What I would like to happen is when a user presses F3 while anything on the form, including the form itself, has focus. I want it to clear all the textboxes. I can make this happen for each textbox individually but I wondered if there was a way to make this happen globally on the form.

Many Thanks