Version: 2017.1
public static int keyboardControl ;

설명

The controlID of the control that has keyboard focus.

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour { private string str = "A String!"; void OnGUI() { str = GUILayout.TextField(str, 10); Debug.Log("id: " + GUIUtility.keyboardControl); } }