.Net程序随系统开机启动(仿Foxmail托盘效果控制)

对于使.NET程序随系统开机启动，最常用的可能就是向在注册表中注册开机启动项，或是建立Windows服务，使程序随系统启动而启动。
这里以WinForm程序为例，测试Demo分享，同时附上对于程序托盘的简单操作，仿Foxmail的托盘显示效果，好的产品都是细细打磨出来的呀！

1.WinForm程序添加注册表和移除注册表
(1).创建一个WinForm程序，界面如下(很简单)：

(2).主要实现代码：(注册表开机启动位置：SOFTWARE\Microsoft\Windows\CurrentVersion\Run)

  /// <summary>
        /// 根据注册名称和路径判断是否已注册
        /// </summary>
        /// <param name="regName">注册名称</param>
        /// <param name="startUpPath">注册路径</param>
        private void IsExistsStartRun(string regName, string startUpPath)
        {
            string strMessage = "注册已移除！";
            RegistryKey loca = Registry.LocalMachine;
            RegistryKey run = loca.CreateSubKey(@"SOFTWARE\Microsoft\Windows\CurrentVersion\Run");

            object obj = run.GetValue(regName);

            if (obj != null)
            {
                strMessage = "注册已添加！";
                ControlBtnEnable(false);
            }
            else
            {
                ControlBtnEnable(true);
            }
            lblInitMsg.Text += strMessage;
        }

        /// <summary>
        /// 根据注册名和注册路径，更新注册表信息
        /// </summary>
        /// <param name="regName">注册名</param>
        /// <param name="startUpPath">注册路径</param>
        /// <param name="isAddReg">是否添加</param>
        private void RegCompStartRun(string regName, string startUpPath, bool isAddReg)
        {
            //表示Window注册表中项级节点,读取 Windows 注册表基项HKEY_LOCAL_MACHINE
            RegistryKey localMachine = Registry.LocalMachine;
            RegistryKey run = localMachine.CreateSubKey(@"SOFTWARE\Microsoft\Windows\CurrentVersion\Run");

            try
            {
                //SetValue:存储值的名称
                if (isAddReg)
                {
                    run.SetValue(regName, startUpPath);//加入注册，参数一为注册节点名称(随意)
                }
                else
                {
                    if (run.GetValue(regName) != null)//存在则移除
                    {
                        run.DeleteValue(regName, false);//删除该注册节点
                    }
                }
                localMachine.Close();
            }
            catch (Exception ee)
            {
                MessageBox.Show(ee.Message.ToString(), "提示", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }

重新将改程序注册到注册表中，重启电脑，应该就可以了。博客最后是完整代码实现。
2.程序托盘显示控制
(1).在WinForm程序控件库找到notifyIcon控件，将其加到WinForm程序上面，仿Foxmail的托盘程序控制。
随系统自动启动，最小化为托盘在底部显示；单击托盘图标，显示主体程序，继续单击显示和隐藏；单击主窗体关闭按钮，放到托盘显示，右键退出系统，关闭主体程序。
(2).主要实现代码：

 /// <summary>
        /// 初始化消息图标的右键菜单
        /// </summary>
        private void InitNotifyicon()
        {
            List<MenuItem> listMenu = new List<MenuItem>();
            listMenu.Add(new MenuItem("显示主窗口", new EventHandler(this.notifyIcon_ShowFrm)));
            listMenu.Add(new MenuItem("-"));
            listMenu.Add(new MenuItem("最小化系统", new EventHandler(this.notifyIcon_Minimzed)));
            listMenu.Add(new MenuItem("-"));
            listMenu.Add(new MenuItem("退出系统", new EventHandler(this.notifyIcon_ExitShow)));

            this.notifyIcon1.ContextMenu = new ContextMenu(listMenu.ToArray());//消息托盘菜单
        }

        /// <summary>
        /// 根据是否显示窗体和是否最小化，控制窗体显示
        /// </summary>
        /// <param name="isFrmShow">是否显示主窗体</param>
        /// <param name="isMinShow">是否为最小化</param>
        private void IsShowMainFrm(bool isFrmShow, bool isMinShow)
        {
            if (!isMinShow)
            {
                this.Visible = isFrmShow;//显示在屏幕
                this.ShowInTaskbar = isFrmShow;//显示在任务栏
                this.WindowState = FormWindowState.Normal;
                isShowFrm = !isFrmShow;//相反设置
            }
            else
            {
                this.Visible = isMinShow;//主窗体可见
                this.ShowInTaskbar = isMinShow;//在任务栏显示
                isShowFrm = !isFrmShow;//是否显示主窗体控制
                this.WindowState = isFrmShow == true ? FormWindowState.Normal : FormWindowState.Minimized;
            }
            this.isShowMin = isMinShow;//显示最小化控制
        }

3.结合对注册表的操作实现随着系统启动自动启动程序；默认显示为托盘图标显示在底部以及一些显示隐藏控制，仿Foxmail的完成代码实现：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using Microsoft.Win32;

namespace WinFormAutoStart
{
    public partial class Form1 : Form
    {
        private bool isShowMin = false;//默认为最小化
        private bool isShowFrm = false;//默认不显示主窗体
        private string regName = "TestWinForm";//注册表对应的Name
        private string startUpPath = Application.ExecutablePath;//程序执行路径

        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            //注册表操作
            IsExistsStartRun(regName, startUpPath);

            //托盘消息操作
            this.Visible = false;//不可见
            this.ShowInTaskbar = false;//不显示在系统任务S栏
            this.notifyIcon1.Visible = true;
            InitNotifyicon();//添加消息图标右键菜单
        }

        #region 注册表相关操作
        /// <summary>
        /// 控制按钮是否可用
        /// </summary>
        /// <param name="isAdd">标识是否为添加注册操作</param>
        private void ControlBtnEnable(bool isAdd)
        {
            if (isAdd)
            {
                this.btnAddReg.Enabled = true;
                this.btnDeleteReg.Enabled = false;
            }
            else
            {
                this.btnAddReg.Enabled = false;
                this.btnDeleteReg.Enabled = true;
            }
        }

        /// <summary>
        /// 根据注册名称和路径判断是否已注册
        /// </summary>
        /// <param name="regName">注册名称</param>
        /// <param name="startUpPath">注册路径</param>
        private void IsExistsStartRun(string regName, string startUpPath)
        {
            string strMessage = "注册已移除！";
            RegistryKey loca = Registry.LocalMachine;
            RegistryKey run = loca.CreateSubKey(@"SOFTWARE\Microsoft\Windows\CurrentVersion\Run");

            object obj = run.GetValue(regName);

            if (obj != null)
            {
                strMessage = "注册已添加！";
                ControlBtnEnable(false);
            }
            else
            {
                ControlBtnEnable(true);
            }
            lblInitMsg.Text += strMessage;
        }

        /// <summary>
        /// 根据注册名和注册路径，更新注册表信息
        /// </summary>
        /// <param name="regName">注册名</param>
        /// <param name="startUpPath">注册路径</param>
        /// <param name="isAddReg">是否添加</param>
        private void RegCompStartRun(string regName, string startUpPath, bool isAddReg)
        {
            //表示Window注册表中项级节点,读取 Windows 注册表基项HKEY_LOCAL_MACHINE
            RegistryKey localMachine = Registry.LocalMachine;
            RegistryKey run = localMachine.CreateSubKey(@"SOFTWARE\Microsoft\Windows\CurrentVersion\Run");

            try
            {
                //SetValue:存储值的名称
                if (isAddReg)
                {
                    run.SetValue(regName, startUpPath);//加入注册，参数一为注册节点名称(随意)
                }
                else
                {
                    if (run.GetValue(regName) != null)//存在则移除
                    {
                        run.DeleteValue(regName, false);//删除该注册节点
                    }
                }
                localMachine.Close();
            }
            catch (Exception ee)
            {
                MessageBox.Show(ee.Message.ToString(), "提示", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }

        /// <summary>
        /// 添加到注册表
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnAddReg_Click(object sender, EventArgs e)
        {
            //注册 WinForm程序开机启动
            string strMessage = "添加程序注册成功！";
            RegCompStartRun(regName, startUpPath, true);
            lblMessage.Text = strMessage;
            ControlBtnEnable(false);
            MessageBox.Show(strMessage);
        }

        /// <summary>
        /// 从注册表移除
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnDeleteReg_Click(object sender, EventArgs e)
        {
            //注册 WinForm程序开机启动
            string strMessage = "移除程序注册成功！";
            RegCompStartRun(regName, startUpPath, false);
            lblMessage.Text = strMessage;
            ControlBtnEnable(true);
            MessageBox.Show(strMessage);
        }
        #endregion

        #region 消息图标相关操作
        /// <summary>
        /// 初始化消息图标的右键菜单
        /// </summary>
        private void InitNotifyicon()
        {
            List<MenuItem> listMenu = new List<MenuItem>();
            listMenu.Add(new MenuItem("显示主窗口", new EventHandler(this.notifyIcon_ShowFrm)));
            listMenu.Add(new MenuItem("-"));
            listMenu.Add(new MenuItem("最小化系统", new EventHandler(this.notifyIcon_Minimzed)));
            listMenu.Add(new MenuItem("-"));
            listMenu.Add(new MenuItem("退出系统", new EventHandler(this.notifyIcon_ExitShow)));

            this.notifyIcon1.ContextMenu = new ContextMenu(listMenu.ToArray());//消息托盘菜单
        }

        /// <summary>
        /// 根据是否显示窗体和是否最小化，控制窗体显示
        /// </summary>
        /// <param name="isFrmShow">是否显示主窗体</param>
        /// <param name="isMinShow">是否为最小化</param>
        private void IsShowMainFrm(bool isFrmShow, bool isMinShow)
        {
            if (!isMinShow)
            {
                this.Visible = isFrmShow;//显示在屏幕
                this.ShowInTaskbar = isFrmShow;//显示在任务栏
                this.WindowState = FormWindowState.Normal;
                isShowFrm = !isFrmShow;//相反设置
            }
            else
            {
                this.Visible = isMinShow;//主窗体可见
                this.ShowInTaskbar = isMinShow;//在任务栏显示
                isShowFrm = !isFrmShow;//是否显示主窗体控制
                this.WindowState = isFrmShow == true ? FormWindowState.Normal : FormWindowState.Minimized;
            }
            this.isShowMin = isMinShow;//显示最小化控制
        }

        /// <summary>
        /// 右键菜单显示主窗体事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void notifyIcon_ShowFrm(object sender, System.EventArgs e)
        {
            IsShowMainFrm(true, false);
        }

        /// <summary>
        /// 右键菜单退出系统事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void notifyIcon_ExitShow(object sender, EventArgs e)
        {
            notifyIcon1.Visible = false;//图标可不见
            notifyIcon1.Dispose();
            this.Close();//关闭窗体
            this.Dispose();//释放资源
        }

        /// <summary>
        /// 右键菜单最小化事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void notifyIcon_Minimzed(object sender, EventArgs e)
        {
            IsShowMainFrm(false, true);
        }

        /// <summary>
        /// 监视窗体大小改变事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void Form1_SizeChanged(object sender, EventArgs e)
        {
            if (this.WindowState == FormWindowState.Minimized)
            {
                IsShowMainFrm(false, true);
            }
        }

        /// <summary>
        /// 窗体正在关闭事件
        /// 自动放置到托盘
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void Form1_FormClosing(object sender, FormClosingEventArgs e)
        {
            IsShowMainFrm(false, false);
            e.Cancel = true;//取消关闭操作
        }

        /// <summary>
        /// 消息点击事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void notifyIcon1_MouseClick(object sender, MouseEventArgs e)
        {
            IsShowMainFrm(isShowFrm, isShowMin);//控制主窗体是否显示
        }
        #endregion
    }
}

4.效果图如下：