# ThermalEventHandler

> You can subscribe to the thermal event delegate which sends the ThermalMetrics when the thermal state changes.

## Definition

* **Type:** Delegate
* **Namespace:** [UnityEngine.AdaptivePerformance](/engine/6000.5/script-reference/unityengine/adaptiveperformance.md)
* **Assembly:** UnityEngine.AdaptivePerformanceModule

```csharp
public delegate void ThermalEventHandler(ThermalMetrics thermalMetrics)
```