What is the application/process that enables us to see the desktop on Mac OS X? [closed]

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Closed 11 years ago.

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I am trying to figure out what is the name of application that shows us the desktop? It's not the Finder, not a system ui server, then what is it?

I want to know the positions of various windows of application on window server. I have CGContext for them with me. Is it possible to get that information from WindowServer?

Can we use Accessibility API for this or any other technique?

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The window management system is known as Quartz Compositor. The actual process shows up as "WindowServer" in Activity Monitor.

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That's VNC server. However, this is actually not the programming question.