# MouseButton

> Describes a MouseButton.

## Definition

* **Type:** Enum
* **Namespace:** [UnityEngine.UIElements](/engine/6000.0/script-reference/unityengine/uielements.md)
* **Assembly:** UnityEngine.UIElementsModule

```csharp
public enum MouseButton
```

## Fields

| Value                                                                                            | Description              |
| ------------------------------------------------------------------------------------------------ | ------------------------ |
| [LeftMouse](/engine/6000.0/script-reference/unityengine/uielements/mousebutton/leftmouse.md)     | The Left Mouse Button.   |
| [MiddleMouse](/engine/6000.0/script-reference/unityengine/uielements/mousebutton/middlemouse.md) | The Middle Mouse Button. |
| [RightMouse](/engine/6000.0/script-reference/unityengine/uielements/mousebutton/rightmouse.md)   | The Right Mouse Button.  |