Stop displaying the computer

Question

I would like to be able to stop the computer from displaying or temporarily hide this output. I used a VNC application called AnyPlace, which allows the host computer to hide the output on the monitor and stop keyboard input, but I cannot figure out how they did it. Since you can still control the computer from a remote application, I assume that they do not just download the application using a black screen. I thought about this, but I can not guarantee that I will probably be the topmost application. I need to hide the screen while I use the control system to close the application, and open another in the background, and then restore the result.

Answer 1

Some programs use DPMS to force the monitor to switch to power saving mode. Others may use the HUD overlay to draw on top of the screen without actually having a window (they are often used along with volume keys, etc.). On Windows, you can use the "window stations / desktop" GUI APIs to temporarily switch to a whole different desktop.