In the application i have different user level.
One of them is a low privilege user, that can only use this.
To do this, i need that the application stay foreground ever (i know that is a little bit forced, but is the requirement
So, I need to control every key, and this is the only moment that i lost it.
And i think that is not so good that if I have an open application, when i can't see the content of display and I press a key, it disappear...
p.d. thank for help