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# AudioComponentInstanceCanDo(_:_:)

Determines if an audio component instance implements a particular function.

```
func AudioComponentInstanceCanDo(_ inInstance: AudioComponentInstance, _ inSelectorID: Int16) -> Bool
```

## Parameters

`inInstance`

The audio component instance that you want to examine.

`inSelectorID`

An audio component function selector. The available values for audio units are listed in [General Audio Unit Function Selectors](/documentation/AudioToolbox/1584140-general_audio_unit_function_sele) and [I/O Audio Unit Function Selectors](/documentation/AudioToolbox/1585807-i_o_audio_unit_function_selector).

## Discussion

---

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