How to determine the current Enhanced Zoom factor in Compiz?

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http://unix.stackexchange.com – When I use Skype :( need to, rather than want to ), I find that I sometimes want to open the main menu, but it doesn't have a shortcut key assigned to it (well, not one that I can find). I have written a bash/python script which searches for and clicks on Skype's main menu icon. This works quite well when the icon is within the screen area and when it is off-screen with a normal sized (un-zoomed) screen. However, I cannot find a way to locate the icon so that I can move it into the zoomed screen area (so the script can send a mouse-click to it). To do this the current Compiz Enhanced Zo (HowTos)