# overlayCanvas

> The OverlayCanvas for this window.

## Definition

* **Type:** Property
* **Namespace:** [UnityEditor](/engine/6000.5/script-reference/unityeditor.md)
* **Assembly:** UnityEditor.CoreModule

```csharp
public OverlayCanvas overlayCanvas { get; }
```

### Remarks

Note that while every [EditorWindow](/engine/6000.5/script-reference/unityeditor/editorwindow.md) contains an [OverlayCanvas](/engine/6000.5/script-reference/unityeditor/overlays/overlaycanvas.md), windows must opt in to display Overlays. See [ISupportsOverlays](/engine/6000.5/script-reference/unityeditor/overlays/isupportsoverlays.md) for more information.