Mouse button was pressed.
This event gets sent when any mouse button is pressed. Use Event.button to determine which button was pressed down.
Additional resources: EventType, Event.Use.
using UnityEngine;
public class Example : MonoBehaviour { void OnGUI() { Event m_Event = Event.current;
if (m_Event.type == EventType.MouseDown) { if (m_Event.pointerType == PointerType.Pen) //Check if it's a pen event. Debug.Log("Pen Down."); else Debug.Log("Mouse Down."); //If it's not a pen event, it's a mouse event. } } }