---
title: kHIDUsage_Button_99
framework: Kernel
role: symbol
role_heading: Enumeration Case
platforms: [macOS 10.15+]
path: kernel/1641426-anonymous/khidusage_button_99
---

# kHIDUsage_Button_99

## Declaration

```occ
kHIDUsage_Button_99 = 0x63
```