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# setFont(_:range:)

Sets the font of characters within `aRange` to `aFont`.

```
func setFont(_ font: NSFont, range: NSRange)
```

## Discussion

This method applies only to a rich text object.

This method does not include undo support by default. Clients must invoke [`shouldChangeText(inRanges:replacementStrings:)`](/documentation/AppKit/NSTextView/shouldChangeText(inRanges:replacementStrings:)) or [`shouldChangeText(in:replacementString:)`](/documentation/AppKit/NSTextView/shouldChangeText(in:replacementString:)) to include this method in an undoable action.

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