---
title: version
framework: coregraphics
role: symbol
role_heading: Instance Property
path: coregraphics/cgpatterncallbacks/version
---

# version

The version of the structure passed in as a parameterto the init(info:bounds:matrix:xStep:yStep:tiling:isColored:callbacks:). Forthis version of the structure, you should set this value to zero.

## Declaration

```swift
var version: UInt32
```

## See Also

### Instance Properties

- [drawPattern](coregraphics/cgpatterncallbacks/drawpattern.md)
- [releaseInfo](coregraphics/cgpatterncallbacks/releaseinfo.md)