---
title: kCIApplyOptionDefinition
framework: coreimage
role: symbol
role_heading: Global Variable
path: coreimage/kciapplyoptiondefinition
---

# kCIApplyOptionDefinition

The domain of definition (DOD) of the produced image.

## Declaration

```swift
let kCIApplyOptionDefinition: String
```

## Discussion

Discussion The associated value is either a Core Image filter shape or a four-element array (NSArray) that specifies a rectangle.

## See Also

### Constants

- [kCIApplyOptionExtent](coreimage/kciapplyoptionextent.md)
- [kCIApplyOptionUserInfo](coreimage/kciapplyoptionuserinfo.md)
- [kCIApplyOptionColorSpace](coreimage/kciapplyoptioncolorspace.md)