---
title: HIDUsage.AuxiliaryDisplayUsage.charAttrUnderline
framework: corehid
role: symbol
role_heading: Case
path: corehid/hidusage/auxiliarydisplayusage/charattrunderline
---

# HIDUsage.AuxiliaryDisplayUsage.charAttrUnderline

## Declaration

```swift
case charAttrUnderline
```