---
title: AECoercionHandlerUPP
framework: coreservices
role: symbol
role_heading: Type Alias
path: coreservices/aecoercionhandlerupp
---

# AECoercionHandlerUPP

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

## Declaration

```swift
typealias AECoercionHandlerUPP = AECoerceDescUPP
```

## Discussion

Discussion For a description of a coercion handler callback function, see AECoercePtrProcPtr.