---
title: kUCBidiCatFirstStrongIsolate
framework: Core Services
role: symbol
role_heading: Enumeration Case
platforms: [Mac Catalyst 17.0+, macOS 10.10+]
path: coreservices/1400035-bidirectional_character_values/kucbidicatfirststrongisolate
---

# kUCBidiCatFirstStrongIsolate

## Declaration

```occ
kUCBidiCatFirstStrongIsolate = 22
```