# X

> X-axis.

## Definition

* **Type:** Field
* **Namespace:** [UnityEditor.IMGUI.Controls](/engine/6000.3/script-reference/unityeditor/imgui/controls.md)
* **Assembly:** UnityEditor

```csharp
X = 0
```

### Remarks

When using this value, the [CapsuleBoundsHandle.height](/engine/6000.3/script-reference/unityeditor/imgui/controls/capsuleboundshandle/height.md) property extends the capsule along its X-axis.