# PerformanceBoostChangeHandler

> You can subscribe to the boost event delegate which sends the PerformanceBoostChangeEventArgs when a boost changes.

## Definition

* **Type:** Delegate
* **Namespace:** [UnityEngine.AdaptivePerformance](/engine/6000.7/script-reference/unityengine/adaptiveperformance.md)
* **Assembly:** UnityEngine.AdaptivePerformanceModule

```csharp
public delegate void PerformanceBoostChangeHandler(PerformanceBoostChangeEventArgs boostEventArgs)
```