---
title: OSLCountUPP
framework: coreservices
role: symbol
role_heading: Type Alias
path: coreservices/oslcountupp
---

# OSLCountUPP

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

## Declaration

```swift
typealias OSLCountUPP = OSLCountProcPtr
```

## Discussion

Discussion For a description of a count callback function, see OSLCountProcPtr.