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Is there a way to load extra keys into the an app’s Info.plist at runtime, and institute this on a system-wide level? Specifically, I’m sort of envisioning a prefPane that adds an LSUIPresentationMode = 4 key whenever an app runs, essentally instituting a show/hide menu bar feature, ala show/hide dock.

Thanks for any pointers. –total noob

No, but the SetSystemUIMode function can be used to achieve the same effect as that key. Just use your favorite code injection technique (mach_inject, APE, etc.) and make other apps call SetSystemUIMode.

Cool. I’ll look into that. Thanks.