# button

> Which mouse button was pressed.

## Definition

* **Type:** Property
* **Namespace:** [UnityEngine](/engine/6000.7/script-reference/unityengine.md)
* **Assembly:** UnityEngine.UICommonModule

```csharp
public int button { get; set; }
```

### Remarks

0 means left mouse button, 1 means right mouse button, 2 means middle mouse button. Used in [EventType.MouseDown](/engine/6000.7/script-reference/unityengine/eventtype/mousedown.md) and [EventType.MouseUp](/engine/6000.7/script-reference/unityengine/eventtype/mouseup.md) events.

### Examples

```csharp
using UnityEngine;

public class Example : MonoBehaviour
{
    // Detect which mouse button is currently pressed
    // and print it.
    void OnGUI()
    {
        Event e = Event.current;
        if (e.button == 0 && e.isMouse)
        {
            Debug.Log("Left Click");
        }
        else if (e.button == 1)
        {
            Debug.Log("Right Click");
        }
        else if (e.button == 2)
        {
            Debug.Log("Middle Click");
        }
        else if (e.button > 2)
        {
            Debug.Log("Another button in the mouse clicked");
        }
    }
}
```