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# NSTextView.DidChangeSelectionMessage

```
struct DidChangeSelectionMessage
```

## Topics

### Instance Properties

[`var oldSelectedCharacterRange: NSRange?`](/documentation/AppKit/NSTextView/DidChangeSelectionMessage/oldSelectedCharacterRange)

[`var textView: NSTextView`](/documentation/AppKit/NSTextView/DidChangeSelectionMessage/textView)

## Relationships

### Conforms To

[`MainActorMessage`](/documentation/Foundation/NotificationCenter/MainActorMessage)

[`SendableMetatype`](/documentation/Swift/SendableMetatype)

---

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