---
title: "init(theMsgEvent:eventRefCon:messageLength:)"
framework: Application Services
role: symbol
role_heading: Initializer
platforms: [macOS 10.9+, xcode 9.0+]
path: applicationservices/appparameters/1461815-init
---

# init(theMsgEvent:eventRefCon:messageLength:)

## Declaration

```swift
init(theMsgEvent: AppParameters.__Unnamed_struct_theMsgEvent, eventRefCon: UInt32, messageLength: UInt32)
```