# GetTooltip

> Customize the tooltip that displays when the mouse hovers the node name label.

## Definition

* **Type:** Event
* **Namespace:** [Unity.Hierarchy.Editor](/engine/6000.5/script-reference/unity/hierarchy/editor.md)
* **Assembly:** UnityEditor

```csharp
public static event HierarchyWindow.GetTooltipEventHandler GetTooltip
```

### Remarks

This callback receives the [HierarchyViewItem](/engine/6000.5/script-reference/unity/hierarchy/hierarchyviewitem.md) to get the tooltip for, the StringBuilder to build the tooltip, and whether the [HierarchyView](/engine/6000.5/script-reference/unity/hierarchy/hierarchyview.md) is being filtered.