---
title: kTECAddFallbackInterruptMask
framework: Core Services
role: symbol
role_heading: Enumeration Case
platforms: [Mac Catalyst 17.0+, macOS 10.0+]
path: coreservices/1400367-unicode_converter_masks/ktecaddfallbackinterruptmask
---

# kTECAddFallbackInterruptMask

## Declaration

```occ
kTECAddFallbackInterruptMask = 1L << kTECAddFallbackInterruptBit
```