---
title: copyDescription
framework: coreservices
role: symbol
role_heading: Instance Property
path: coreservices/fseventstreamcontext/1445178-copydescription
---

# copyDescription

The callback used to create a descriptive string representation of the info pointer (or the data pointed to by the info pointer) for debugging purposes. This can be NULL.

## Declaration

```swift
var copyDescription: CFAllocatorCopyDescriptionCallBack?
```