Unity | 实现隐藏窗口到托盘，并且任务栏不显示icon

效果如下图所示：用到的插件：（放在Plugins文件夹下，点击下载各个版本）System.Drawing.dllSystem.Windows.Forms.dllSystem.Deployment.dll（运用基于.Net4.x的dll打包时，需要用到该dll，否则会报错）代码如下：using System;using System.Runtime.InteropSe...

烫青菜

6054人浏览 · 2019-09-03 17:57:46

烫青菜 · 2019-09-03 17:57:46 发布

效果如下图所示：

用到的插件：（放在Plugins文件夹下，点击下载各个版本）

System.Drawing.dll
System.Windows.Forms.dll
System.Deployment.dll（运用基于.Net4.x的dll打包时，需要用到该dll，否则会报错）

代码如下：

using System;
using System.Runtime.InteropServices;
using UnityEngine;
using UnityEngine.UI;

public class LayoutManager : MonoBehaviour
{
    [DllImport("user32.dll")]
    static extern IntPtr GetForegroundWindow();

    [DllImport("user32.dll")]
    public static extern bool ShowWindow(IntPtr hwnd, int nCmdShow);

    private const int SW_HIDE = 0;  //hied task bar

    private const int SW_RESTORE = 9;//show task bar
    
    private static System.Windows.Forms.NotifyIcon _notifyIcon = new System.Windows.Forms.NotifyIcon();

    private static int _width = 100, _height = 100;

    public Button btn;

    private IntPtr window;
   
    private void Start()
    {
        btn.onClick.AddListener(delegate
        {
            HideTaskBar();
        });
    }
    
    public void HideTaskBar()//最小化到托盘
    {
        try
        {
            window = GetForegroundWindow();

            ShowWindow(window, SW_HIDE);

            _notifyIcon.BalloonTipText = "AIScanner1.1.0";//托盘气泡显示内容

            _notifyIcon.Text = "AIScanner";//鼠标悬浮时显示的内容

            _notifyIcon.Visible = true;//托盘按钮是否可见

            _notifyIcon.Icon = CustomTrayIcon(Application.streamingAssetsPath + "/icon.png", _width, _height);//托盘图标

            _notifyIcon.ShowBalloonTip(2000);//托盘气泡显示时间

            _notifyIcon.MouseClick += notifyIcon_MouseClick;//双击托盘图标响应事件
        }
        catch(Exception e)
        {
            Debug.Log(e.ToString());
        }
    }

    private static System.Drawing.Icon CustomTrayIcon(string iconPath, int width, int height)
    {
        System.Drawing.Bitmap bt = new System.Drawing.Bitmap(iconPath);

        System.Drawing.Bitmap fitSizeBt = new System.Drawing.Bitmap(bt, width, height);

        return System.Drawing.Icon.FromHandle(fitSizeBt.GetHicon());
    }

    private void notifyIcon_MouseClick(object sender, System.Windows.Forms.MouseEventArgs e)//点击托盘图标
    {
        if (e.Button == System.Windows.Forms.MouseButtons.Left)
        {
            _notifyIcon.MouseDoubleClick -= notifyIcon_MouseClick;

            _notifyIcon.Visible = false;

            ShowWindow(window, SW_RESTORE);
        }
    }

    private void OnDestroy()
    {
        _notifyIcon.MouseDoubleClick -= notifyIcon_MouseClick;
    }
}

打包时，注意Unity ->PlayerSetting->Scripting Runtime Version及APi Compatibility Level俩个选项。