Creating "type-safe" CIFilter fails

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Created Nov ’24

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I'm getting consistent errors in Xcode 16.1 while trying to implement type-safe CIFilter instances as documented on the page at https://developer.apple.com/documentation/coreimage/cifilter.

After pasting in the example code on that page for a "FalseColor" filter into a simple test project's ContentView, I get an error explaining that: "Type 'CIFilter' has no member 'falseColor'".

Same thing with pasting in the example code at https://developer.apple.com/documentation/coreimage/cifilter/3228278-boxblur, and other examples.

I have imported CoreImage, so that shouldn't be the issue.

Am I doing something wrong, or is this functionality just broken?

I have had success creating filters with the string-based API, but access to a type-safe API would obviously be preferable, so any suggestions are greatly appreciated.

Answered by FrankSchlegel in 815640022

You have to import CoreImage.CIFilterBuiltins explicitly to get access to the type-safe filters. Did you do that?

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Answer 1

FrankSchlegel OP

Nov ’24

Accepted Answer

You have to import CoreImage.CIFilterBuiltins explicitly to get access to the type-safe filters. Did you do that?

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Answer 2

dsbirch OP

Nov ’24

Importing CoreImage.CIFilterBuiltins fixed the problem for me. Thanks much.

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