---
title: implementorDisplayNameWithLengthCallback
framework: audiotoolbox
role: symbol
role_heading: Instance Property
path: audiotoolbox/auparameternode/implementordisplaynamewithlengthcallback
---

# implementorDisplayNameWithLengthCallback

The callback for obtaining an abbreviated version of a parameter node display name.

## Declaration

```swift
var implementorDisplayNameWithLengthCallback: AUImplementorDisplayNameWithLengthCallback { get set }
```

## See Also

### Audio Unit Implementations

- [implementorValueObserver](audiotoolbox/auparameternode/implementorvalueobserver.md)
- [implementorValueProvider](audiotoolbox/auparameternode/implementorvalueprovider.md)
- [implementorStringFromValueCallback](audiotoolbox/auparameternode/implementorstringfromvaluecallback.md)
- [implementorValueFromStringCallback](audiotoolbox/auparameternode/implementorvaluefromstringcallback.md)