Version: 2017.3

GUIUtility.keyboardControl

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public static int keyboardControl ;

Description

controlID элемента управления с фокусом на клавиатуру.

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); } }