---
title: "init(mEventType:mArgument:)"
framework: audiotoolbox
role: symbol
role_heading: Initializer
path: "audiotoolbox/audiounitevent/init(meventtype:margument:)"
---

# init(mEventType:mArgument:)

## Declaration

```swift
init(mEventType: AudioUnitEventType, mArgument: AudioUnitEvent.__Unnamed_union_mArgument)
```