how can I simulate an INT

Hi!

In the school i must to do a program that simulates (or do real) interruptions, y must to interrupt the mouse, screen and keyboard for 30 seconds... i start with the mouse interruption... i try with a timer each 10 ms doing a SetCursorPos but the mouse is still moving... i thought to disable de KBD keystrokes sending a 0 each _keypress event but it doesn't work if my form lost focus... screen is a big question... can i send to a video suspend mode with an API call?

wich options for mouse and KBD you suggest me?

Thanx a lot for your help...