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I’m wondering how some of the OS X utilities out there (General/LaunchBar or General/QuickSilver for instance) are able to “catch” keyboard shortcuts and perform a subsequent action (like make a window appear). In other words, how you create a system wide shortcut? I’m what you might call a “rusty” intermediate Cocoa programmer…much better at OOP than procedural C type programming…so if you could just point me in the right direction API-wide, I could probably figure it out unless it’s really low-level stuff.

Basically, all I want to do is to be able to be notified when the user hits Command-Space or something similar. I know what to do from there. :)



Look at my working sample code at

The keyword you’re looking for is General/HotKeys. See also General/GlobalHotKeys and General/CarbonCompatibility.