# Application.MemoryUsageChangedCallback

> A delegate for the Application.memoryUsageChanged vent.

## Definition

* **Type:** Delegate
* **Namespace:** [UnityEngine](/engine/6000.6/script-reference/unityengine.md)
* **Assembly:** UnityEngine.CoreModule

```csharp
public delegate void Application.MemoryUsageChangedCallback(in ApplicationMemoryUsageChange usage)
```