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I am working on my MacBook Pro. In the office I have 1 27" Monitor attached to it, at home I tend to work without an second monitor. For that setup I want to change the wallpaper if no 2nd monitor is attached.

Is there a app that helps me do that? Can I do this with applescript without manual activating that script?

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I have googled a bit and if i would build a cocoa app for that i would have to use applicationDidChangeScreenParameters. But i am not as good as i need to be in cocoa development for that. Hopefully someone already wrote an app for that :) – bitboxer May 24 '10 at 8:50
Sadly I haven't found anything that fittet my neads. I have written a little Cococa App that does exactly what I needed. Hopefully I will be able to add some final finishing touches and release it as open source. – bitboxer Jun 10 '10 at 19:02
See:… – ryandesign Feb 3 '12 at 2:30

I think you might want to take a look at Hyperspaces. Although this is for Multiple SPaces, I don’t remember if it will let you specify a different wallpaper per-screen and this might not be what you’re looking for.

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That's not what I need. What I needed was a little app that could detect what monitor setup I am currently use (2 Monitor Setup at Work, 1 Monitor in the subway, 2 different Monitor Setup at home) and sets the Dock and the Wallpaper accordingly. Hopefully I will release my little cocoa app soon. – bitboxer Jun 10 '10 at 19:04

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