# MouseButton enum

Namespace: [Rhino.UI](https://developer.rhino3d.com/api/rhinocommon/namespace/rhino.ui.md) · Assembly: [RhinoCommon](https://developer.rhino3d.com/api/rhinocommon/assembly/rhinocommon.md) · Since v6.0

```cs
[Flags]
public enum MouseButton
```

## Values

| Name | Value | Description |
| --- | --- | --- |
| None | 0 |  |
| Left | 1 |  |
| Right | 2 |  |
| Middle | 4 |  |