---
title: PreviewSession.Event
framework: Quick Look
role: symbol
role_heading: Enumeration
platforms: [visionOS 2.0+]
path: quicklook/previewsession/event
---

# PreviewSession.Event

An event from the preview session’s events stream.

## Declaration

```swift
enum Event
```

## Topics

### Enumeration Cases

- [PreviewSession.Event.didClose](quicklook/previewsession/event/didclose.md)
- [PreviewSession.Event.didFail(_:)](quicklook/previewsession/event/didfail(_:).md)
- [PreviewSession.Event.didOpen](quicklook/previewsession/event/didopen.md)

## Relationships

### Conforms To

- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)