---
title: "init(justClass:widthDeltaClusters:postcomp:lookup:)"
framework: Core Text
role: symbol
role_heading: Initializer
path: "coretext/justdirectiontable/init(justclass:widthdeltaclusters:postcomp:lookup:)"
---

# init(justClass:widthDeltaClusters:postcomp:lookup:)

## Declaration

```swift
init(justClass: UInt16, widthDeltaClusters: UInt16, postcomp: UInt16, lookup: SFNTLookupTable)
```