---
title: "init(messageType:messageArgument:)"
framework: IOKit
role: symbol
role_heading: Initializer
platforms: [Mac Catalyst 13.0+, macOS 10.9+, xcode 9.0+]
path: iokit/ioserviceinterestcontent/1514388-init
---

# init(messageType:messageArgument:)

## Declaration

```swift
init(messageType: natural_t, messageArgument: UnsafeMutableRawPointer?)
```