EZGUIのUIButtomをdisableにする

ChangeButton.cs

using UnityEngine;
using System.Collections;

public class ChangeButton : MonoBehaviour {

    public GameObject gameObject;
    private UIButton thisUIButton;

    void  Awake () {
        thisUIButton = GetComponent <UIButton>();
        thisUIButton.controlIsEnabled = false;
    }

    // Use this for initialization
    void Start () {

    }

    // Update is called once per frame
    void Update () {

    }
}