---
title: ExtensionHostNotifying
framework: photosui
role: symbol
role_heading: Protocol
path: photosui/extensionhostnotifying
---

# ExtensionHostNotifying

## Declaration

```swift
@MainActor protocol ExtensionHostNotifying : AnyObject
```

## Topics

### Instance Methods

- [notifyBeganGenerating()](photosui/extensionhostnotifying/notifybegangenerating().md)
- [notifyBeganGeneratingEnvironment(withUUID:)](photosui/extensionhostnotifying/notifybegangeneratingenvironment(withuuid:).md)
- [notifyEndedGenerating()](photosui/extensionhostnotifying/notifyendedgenerating().md)
- [notifyFailure()](photosui/extensionhostnotifying/notifyfailure().md)
- [notifyReadyForTermination()](photosui/extensionhostnotifying/notifyreadyfortermination().md)