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# stream(_:handle:)

The delegate receives this message when a given event has occurred on a given stream.

```
optional func stream(_ aStream: Stream, handle eventCode: Stream.Event)
```

## Parameters

`aStream`

The stream on which `streamEvent` occurred.

`eventCode`

The stream event that occurred.

## Discussion

The delegate receives this message only if `theStream` is scheduled on a run loop. The message is sent on the stream object’s thread. The delegate should examine `streamEvent` to determine the appropriate action it should take.

## See Also

  [Stream Programming Guide](https://developer.apple.com/library/archive/documentation/Cocoa/Conceptual/Streams/Streams.html#//apple_ref/doc/uid/10000188i)


---

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