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jerodsanto/set_wallpaper.rb

Created September 20, 2011 15:11
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MacRuby script to set wallpaper on all connected monitors
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set_wallpaper.rb
#!/usr/bin/env macruby
abort "Usage: #{__FILE__} [image]" if ARGV.empty?
framework "Cocoa"
wallpaper_path = File.expand_path(ARGV.first)
wallpaper_url = NSURL.fileURLWithPath(wallpaper_path, isDirectory: false)
workspace = NSWorkspace.sharedWorkspace
NSScreen.screens.each do |screen|
workspace.setDesktopImageURL(wallpaper_url, forScreen:screen, options:nil, error:nil)
end
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I can't find an easy way to loop this over all desktops in Mission Control. I toyed with sending keystrokes to trigger desktop switching, a la this app, but didn't get it working on first attempt.

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