MonoBehaviour.OnMouseEnter

function OnMouseEnter () : void

Description

OnMouseEnter is called when the mouse entered the GUIElement or Collider.

JavaScript

// Attach this script to a mesh to make
// it red when the mouse is over the mesh

function OnMouseEnter () {
    renderer.material.color = Color.red;
}

using UnityEngine;
using System.Collections;

public class example : MonoBehaviour {
    void OnMouseEnter() {
        renderer.material.color = Color.red;
    }
}

import UnityEngine
import System.Collections

class example(MonoBehaviour):

    def OnMouseEnter():
        renderer.material.color = Color.red

This function is not called on objects that belong to Ignore Raycast layer.

OnMouseEnter can be a co-routine, simply use the yield statement in the function. This event is sent to all scripts attached to the Collider or GUIElement.

IMPORTANT: This function has no effect on iPhone.