ALT key problem - How to avoid menu popping up via ALT?

In my app I want to use the ALT key to tap a tempo. The problem is, that when pressing ALT the Windows menu appears, since this is the standart shortcut for accessing it in applications. How can I avoid this behaviour?

use another key…?

Besides, repeatedly pressing alt will pop up that annoying windows sticky-keys dialog, won’t it?

[quote=“jules”]
Besides, repeatedly pressing alt will pop up that annoying windows sticky-keys dialog, won’t it?[/quote]

The very devil himself!

All other modifier keys are already used in my app. I really want to use ALT,… Is there really no workaround?

Seems like a very bad choice of key, especially for tapping a tempo - why not the space bar or return key? Modifiers shouldn’t be used to trigger events.