---
title: releaseInfo
framework: coregraphics
role: symbol
role_heading: Instance Property
path: coregraphics/cgfunctioncallbacks/releaseinfo
---

# releaseInfo

If non-NULL,the callback used to release the info parameterpassed to init(info:domainDimension:domain:rangeDimension:range:callbacks:).

## Declaration

```swift
var releaseInfo: CGFunctionReleaseInfoCallback?
```

## See Also

### Instance Properties

- [evaluate](coregraphics/cgfunctioncallbacks/evaluate.md)
- [version](coregraphics/cgfunctioncallbacks/version.md)