---
title: kAXUnderlineTextAttribute
framework: Application Services
role: symbol
role_heading: Global Variable
platforms: [macOS 10.4+]
path: applicationservices/kaxunderlinetextattribute
---

# kAXUnderlineTextAttribute

A CFNumberRef value that describes the underline style (see AXUnderlineStyle for possible values).

## Declaration

```swift
var kAXUnderlineTextAttribute: Unmanaged<CFString>
```

## Discussion

Discussion