How to block keyboard inputs

[Marx Villegas]

Hi,
I'm developing a cybercafe management client/server application, and I have a very hard task in hand.
I need that clients machines, when unauthorized to be used, have both mouse and keyboard disabled, while the screen shows nothing but a "Welcome to the cyber - for navigating contact cyber operator", absolutely nothing else. Then when the operator authorizes the machine, OS is shown.
The idea is to make a multiplaform app for both client and server.

I already know how to freeze the screen, but when the user presses alt+ctrl+delete, or alt+tab, or the windows OS start key my magic window dissapears. I already implemented the KeyListener interface and captured and consumed all the keyboard events, and it still won't work.

Help me please!
XM

[Joe Ess]

Please do not post the same question in multiple forums. It causes confusion and duplication of effort as the community tries to help everyone.