---
title: "init(header:ligatureActionTableOffset:componentTableOffset:ligatureTableOffset:)"
framework: Core Text
role: symbol
role_heading: Initializer
path: "coretext/mortligaturesubtable/init(header:ligatureactiontableoffset:componenttableoffset:ligaturetableoffset:)"
---

# init(header:ligatureActionTableOffset:componentTableOffset:ligatureTableOffset:)

## Declaration

```swift
init(header: STHeader, ligatureActionTableOffset: UInt16, componentTableOffset: UInt16, ligatureTableOffset: UInt16)
```