public Button hideCloseBtn ; public Button showCloseBtn ; public Button showMaxSizeBtn ; private void Awake ( ) // 获得窗口句柄 var hwd = GetForegroundWindow ( ) ; // 隐藏标题栏 hideBarBtn . onClick . AddListener ( ( ) => var wl = GetWindowLong ( hwd , GWL_STYLE ) ; wl &= ~ WS_CAPTION ; SetWindowLong ( hwd , GWL_STYLE , wl ) ; } ) ; // 显示标题栏 showBarBtn . onClick . AddListener ( ( ) => var wl = GetWindowLong ( hwd , GWL_STYLE ) ; wl |= WS_CAPTION ; SetWindowLong ( hwd , GWL_STYLE , wl ) ; } ) ; // 隐藏关闭按钮 hideCloseBtn . onClick . AddListener ( ( ) => var wl = GetWindowLong ( hwd , GWL_STYLE ) ; wl &= ~ WS_SYSMENU ; SetWindowLong ( hwd , GWL_STYLE , wl ) ; } ) ; // 显示关闭按钮 showCloseBtn . onClick . AddListener ( ( ) => var wl = GetWindowLong ( hwd , GWL_STYLE ) ; wl |= WS_SYSMENU ; SetWindowLong ( hwd , GWL_STYLE , wl ) ; } ) ; // 窗口最大化按钮按钮 showMaxSizeBtn . onClick . AddListener ( ( ) => /// <summary> /// 最大化 /// </summary> // 设置窗口最大化 ShowWindow ( hwd , SW_SHOWMAXIMIZED ) ; } ) ; /// <summary> /// 点击窗口的x按钮，会执行这个函数 /// </summary> private void OnApplicationQuit ( ) Application . wantsToQuit += ( ) => // 获得窗口句柄 var hwd = GetForegroundWindow ( ) ; // 设置窗口最小化 ShowWindow ( hwd , SW_SHOWMINIMIZED ) ; // 阻止程序被关闭 return false ; //引用windows接口 [ DllImport ( "user32.dll" ) ] public static extern IntPtr GetForegroundWindow ( ) ; [ DllImport ( "user32.dll" ) ] public static extern bool ShowWindow ( IntPtr hwd , int cmdShow ) ; [ DllImport ( "user32.dll" ) ] public static extern long GetWindowLong ( IntPtr hwd , int nIndex ) ; [ DllImport ( "user32.dll" ) ] public static extern void SetWindowLong ( IntPtr hwd , int nIndex , long dwNewLong ) ; /// <summary> /// 最小化 /// </summary> const int SW_SHOWMINIMIZED = 2 ; /// <summary> /// 最大化 /// </summary> const int SW_SHOWMAXIMIZED = 3 ; /// <summary> /// 还原 /// </summary> const int SW_SHOWRESTORE = 1 ; /// <summary> /// 窗口风格 /// </summary> const int GWL_STYLE = - 16 ; /// <summary> /// 标题栏 /// </summary> const int WS_CAPTION = 0x00c00000 ; /// <summary> /// 标题栏按钮 /// </summary> const int WS_SYSMENU = 0x00080000 ;

如果是需要尽早执行的话可以推荐将代码放到[RuntimeInitializeOnLoadMethod(RuntimeInitializeLoadType.BeforeSceneLoad)]特性下调用。
RuntimeInitializeOnLoadMethod介绍

代码using System;using System.Runtime.InteropServices;using UnityEngine;using UnityEngine.UI;public class WindowsStyle : MonoBehaviour{ public Button hideBarBtn; public Button showBarBtn; public Button hideCloseBtn; public Button showC using System.Runtime.InteropServices; public class Windows SET:MonoSingleton&lt; Windows SET&gt; #region 窗口 最小化 定义 [DllImport("user32.d... //通过非托管方式导入dll。这里是导入user32.dll。 [DllImport("user32.dll")] public static extern bool ShowWindow(IntPtr hwnd, int nCmdShow); [DllImport("user32.dl.