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Post: Determining UTIs defined by App bundles

Determining UTIs defined by App bundles

Published 12:04 Apr 13, 2017.

Created by @ezra. Categorized in #Programming, and tagged as #macOS.

Source format: Markdown

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We know that lsregister -dump is an option; however, I'm left to wonder if there isn't a better solution.

In my searching I've come across a private API that could be of use:


Since there's absolutely no documentation for it, I give you this:

import Foundation
@_silgen_name("_UTCopyDeclaredTypeIdentifiers") func UTCopyDeclaredTypeIdentifiers() -> CFArray

let UTIs = UTCopyDeclaredTypeIdentifiers()

Should print all the UTIs that the function knows about. Pretty simple.

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