[RESOLVED] Disabling f10 when form unloads

[potatocake]

Hi,
I have this application when f10 is clicked it opens its own menus probably thru hotkey. Ive managed to position this app on top of my interface when a button is pushed. But when the button is released this application is then hidden and you could open other windows and stuff on the interface. But when f10 is clicked, it opens up that application menus. So I want to disable the f10 key when Ive hidden the application therefore it wont show when I look at other menus on my interface and if the user does not accidentally press f10. Ive found some threads on disabling ctrl-alt-del using registry. Should I be doing the same for function keys?
Or is there another way?

Thanks