Have you another way to propose me for implementing a sort of modal behaviour on the amiga? :)
If you use disable you can show to user a content disabled, but he can interact with main window input yet, while sleep provides the right disable input that I want, but user is not informed he cannot use that window until he click on it... I want avoid user click on window to understand it is "disabled", he should see this status with his eyes and without to click on it...