---
title: PHInvalidImageRequestID
framework: photos
role: symbol
role_heading: Global Variable
path: photos/phinvalidimagerequestid
---

# PHInvalidImageRequestID

A special value provided for asynchronous image requests that cannot be canceled.

## Declaration

```swift
var PHInvalidImageRequestID: PHImageRequestID { get }
```

## See Also

### Canceling a Request

- [cancelImageRequest(_:)](photos/phimagemanager/cancelimagerequest(_:).md)
- [PHImageRequestID](photos/phimagerequestid.md)