# boundaryChanged

> An event that takes the delegate instance that the XRInputSubsystem calls when it changes its tracking boundary.

## Definition

* **Type:** Event
* **Namespace:** [UnityEngine.XR](/engine/6000.5/script-reference/unityengine/xr.md)
* **Assembly:** UnityEngine.XRModule

```csharp
public event Action<XRInputSubsystem> boundaryChanged
```

### Remarks

See GetBoundaryPoints to get the new boundary.