# applySettingsCallback

> The optional callback to apply the pass settings to the material property block.

## Definition

* **Type:** Property
* **Namespace:** [UnityEngine.UIElements](/engine/6000.6/script-reference/unityengine/uielements.md)
* **Assembly:** UnityEngine.UIElementsModule

```csharp
public PostProcessingPass.ApplyFilterPassSettingsDelegate applySettingsCallback { readonly get; set; }
```