---
title: AEEventHandlerUPP
framework: coreservices
role: symbol
role_heading: Type Alias
path: coreservices/aeeventhandlerupp
---

# AEEventHandlerUPP

Defines a data type for the universal procedure pointer for the AEEventHandlerUPP callback function pointer.

## Declaration

```swift
typealias AEEventHandlerUPP = AEEventHandlerProcPtr
```

## Discussion

Discussion For a description of an event handler callback function, see AEEventHandlerProcPtr.