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I want to create a fake black screen display on my computer; essentially, I want the display to have the following properties:    (a) To an observer it appears that the computer is switched off.    (b) However, the mouse and other applications continue to work; you can click icons and start applications. The only thing is that you can't see what is happening (or what you are clicking).    (c) There is a "secret way" to get from "normal" to "black screen mode" and back    Basically, I am using an "auto mouse mover and clicker" to run certain applications on my computer. But I don't want others to see what applications are running (started and stopped by my auto mouse mover and clicker), but at the same time, I want them to run. I also want some method to get back to normal from the "black screen mode"; perhaps some password or "hotkey" of some sort.    Thanks in advance for all the help; I'd really appreciate a useful answer to this question as this is very important at the moment (please don't ask me why!). Also, I'll definitely reward the best answer with 10 points, and give it a thumbs up as well.    The problem with simply turning the monitor off is that anyone with a bit of intelligence could turn it back on. I'd like to create a deceptive black screen that only a "secret code" could "unlock" (perhaps a hotkey or a password). Can you please suggest a way to turn off the monitor such that only a password can turn it on (though I'd like a trick not involving the monitor if possible)? Thanks everyone and please give an answer as soon as possible!

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