前言

Unity3D可以使用UGUI自己设计弹窗，也可以像Winform一样使用Windows系统本身的弹窗（跨平台请谨慎使用）。

原文：





https://www.shuzhiduo.com/A/KE5Q4W3kJL/

部分效果如下：

代码如下所示：

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using System.Runtime.InteropServices;//调用外部库，需要引用命名空间
using System;
using UnityEngine.UI;

public class UseWindowsMessagePop : MonoBehaviour
{
    //引入dll
    [DllImport("User32.dll", SetLastError = true, ThrowOnUnmappableChar = true, CharSet = CharSet.Auto)]
    public static extern int MessageBox(IntPtr handle, String message, String title, int type);//具体方法

    public Transform ButtonsParent;//按钮组
    private int returnNumber; //返回值
    private void Start()
    {
        int i = 0;
        foreach (Transform item in ButtonsParent)
        {
            if (item.GetComponent<Button>())
            {
                item.name = item.GetChild(0).GetComponent<Text>().text = i.ToString();
                item.GetComponent<Button>().onClick.AddListener(() => Button(int.Parse(item.name)));
                i++;
            }
        }
    }
    /// <summary>
    /// 按钮对应弹框
    /// </summary>
    /// <param name="index"></param>
    private void Button(int index)
    {
        Debug.Log("click:" + index);
        switch (index)
        {
            case 0:
                returnNumber = MessageBox(IntPtr.Zero, "Chinar-0:返回值均：1", "确认", 0);
                print(returnNumber);
                break;
            case 1:
                returnNumber = MessageBox(IntPtr.Zero, "Chinar-1:确认：1，取消：2", "确认|取消", 1);
                print(returnNumber);
                break;
            case 2:
                returnNumber = MessageBox(IntPtr.Zero, "Chinar-2:中止：3，重试：4，忽略：5", "中止|重试|忽略", 2);
                print(returnNumber);
                break;
            case 3:
                returnNumber = MessageBox(IntPtr.Zero, "Chinar-3:是：6，否：7，取消：2", "是 | 否 | 取消", 3);
                print(returnNumber);
                break;
            case 4:
                returnNumber = MessageBox(IntPtr.Zero, "Chinar-4:是：6，否：7", "是 | 否", 4);
                print(returnNumber);
                break;
            case 5:
                returnNumber = MessageBox(IntPtr.Zero, "Chinar-5:重试：4，取消：2", "重试 | 取消", 5);
                print(returnNumber);
                break;
            case 6:
                returnNumber = MessageBox(IntPtr.Zero, "Chinar-6:取消：2，重试：10，继续：11", "取消 | 重试 | 继续", 6);
                print(returnNumber);
                break;
        }
    }
}