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Apple Developer Docs

Core Services / Fallback Handler Selectors / kUnicodeFallbackCustomOnly

kUnicodeFallbackCustomOnly

Use the custom fallback handler only.

Declaration

kUnicodeFallbackCustomOnly = 1

Open on developer.apple.com

Core ServicesEnumeration Case

Mac Catalyst 17.0+macOS 10.0+

Built on 2026-08-05 · Snapshot snapshot-20260805-beta.2 (macOS 27.0) · Commit 4bc0d8f · by @g-cqd · based on Apple Developer Documentation