---
title: kAUNodeInteraction_Connection
framework: audiotoolbox
role: symbol
role_heading: Global Variable
path: audiotoolbox/kaunodeinteraction_connection
---

# kAUNodeInteraction_Connection

connections between 2 audio units,

## Declaration

```swift
var kAUNodeInteraction_Connection: UInt32 { get }
```

## See Also

### Constants

- [kAUNodeInteraction_InputCallback](audiotoolbox/kaunodeinteraction_inputcallback.md)