---
title: kCGImageAnimationStartIndex
framework: imageio
role: symbol
role_heading: Global Variable
path: imageio/kcgimageanimationstartindex
---

# kCGImageAnimationStartIndex

A property that specifies the index of the first frame of an animation.

## Declaration

```swift
let kCGImageAnimationStartIndex: CFString
```

## Discussion

Discussion The value of this property is a CFNumber that contains an unsigned integer. To override the start index value in the image file, include this property in the options dictionary when animating an image.

## See Also

### Animations

- [CGAnimateImageAtURLWithBlock(_:_:_:)](imageio/cganimateimageaturlwithblock(_:_:_:).md)
- [CGAnimateImageDataWithBlock(_:_:_:)](imageio/cganimateimagedatawithblock(_:_:_:).md)
- [CGImageSourceAnimationBlock](imageio/cgimagesourceanimationblock.md)
- [kCGImageAnimationDelayTime](imageio/kcgimageanimationdelaytime.md)
- [kCGImageAnimationLoopCount](imageio/kcgimageanimationloopcount.md)
- [CGImageAnimationStatus](imageio/cgimageanimationstatus.md)