---
title: Stream.Event
framework: foundation
role: symbol
role_heading: Structure
path: foundation/stream/event
---

# Stream.Event

Describes the constants that may be sent to the delegate as a bit field in the second parameter of stream(_:handle:) to specify the kind of stream event.

## Declaration

```swift
struct Event
```

## Topics

### Constants

- [openCompleted](foundation/stream/event/opencompleted.md)
- [hasBytesAvailable](foundation/stream/event/hasbytesavailable.md)
- [hasSpaceAvailable](foundation/stream/event/hasspaceavailable.md)
- [errorOccurred](foundation/stream/event/erroroccurred.md)
- [endEncountered](foundation/stream/event/endencountered.md)

### Initializers

- [init(rawValue:)](foundation/stream/event/init(rawvalue:).md)

## Relationships

### Conforms To

- [BitwiseCopyable](swift/bitwisecopyable.md)
- [Equatable](swift/equatable.md)
- [ExpressibleByArrayLiteral](swift/expressiblebyarrayliteral.md)
- [OptionSet](swift/optionset.md)
- [RawRepresentable](swift/rawrepresentable.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)
- [SetAlgebra](swift/setalgebra.md)

## See Also

### Constants

- [Stream.Status](foundation/stream/status.md)
- [Stream Status Constants](foundation/stream_status_constants.md)
- [StreamNetworkServiceTypeValue](foundation/streamnetworkservicetypevalue.md)
- [StreamSOCKSProxyConfiguration](foundation/streamsocksproxyconfiguration.md)
- [StreamSOCKSProxyVersion](foundation/streamsocksproxyversion.md)
- [StreamSocketSecurityLevel](foundation/streamsocketsecuritylevel.md)
- [Stream.PropertyKey](foundation/stream/propertykey.md)
- [NSStreamSocketSSLErrorDomain](foundation/nsstreamsocketsslerrordomain.md)
- [NSStreamSOCKSErrorDomain](foundation/nsstreamsockserrordomain.md)