---
title: PHImageResultIsDegradedKey
framework: photos
role: symbol
role_heading: Global Variable
path: photos/phimageresultisdegradedkey
---

# PHImageResultIsDegradedKey

A key whose value indicates whether the result image is a low-quality substitute for the requested image.

## Declaration

```swift
let PHImageResultIsDegradedKey: String
```

## Discussion

Discussion This key provides information about an image loading result in the resultHandler block for methods listed in Requesting Images. The corresponding value is an NSNumber object containing a Boolean value.If true, the result parameter of your resultHandler block contains a low-quality image because Photos could not yet provide a higher-quality image. Depending on your settings in the PHImageRequestOptions object that you provided with the request, Photos may call your result handler block again to provide a higher-quality image.

## See Also

### Constants

- [PHImageResultIsInCloudKey](photos/phimageresultisincloudkey.md)
- [PHImageResultRequestIDKey](photos/phimageresultrequestidkey.md)
- [PHImageCancelledKey](photos/phimagecancelledkey.md)
- [PHImageErrorKey](photos/phimageerrorkey.md)