实现步骤
- 创建 NotifyIcon 控件并设置属性；
- 编写 NotifyIcon 响应控制事件；
- 在主窗体的Load事件中将 NotifyIcon 添加到系统托盘；
- 程序退出时，移除系统托盘的 NotifyIcon；
NotifyIcon 控件，通常用于在系统托盘中显示图标，通过使用它就可以我们想要的效果。
| 属性 | 描述 |
|---|---|
| Icon | 在系统托盘中显示的图标 |
| Text | 鼠标悬停在图标时显示的文本 |
| Visible | 指定是否可见 |
常用方法
| 方法 | 描述 |
|---|---|
| ShowContextMenu | 在系统托盘上下文菜单中显示指定的菜单 |
添加控件(拖拽方式)
将NotifyIcon和一个ContextMenuStrip控件。拖到主窗体中可以修改控件名称
- NotifyIcon 托盘图标
- ContextMenuStrip 托盘图标右击弹出的菜单
设置控件
点击 ContextMenuStrip 右上方的三角图标 -> 编辑项，弹出项信合编辑器
添加右健菜单信息
添加主窗体事件
在最小化或关闭主窗体时，显示在任务栏托盘区域,实现了单击关闭时，不真正关闭程序，而是将主界面隐藏HIDE掉，同时开始显示托盘菜单。
// 只有Form_Closing事件中 e.Cancel可以用。 // 你的是Form_Closed事件。 Form_Closed事件时窗口已关了 ，Cancel没用了； // Form_Closing是窗口即将关闭时询问你是不是真的关闭才有Cancel事件 private void MainWindow_FormClosing(object sender, FormClosingEventArgs e) { // 注意判断关闭事件reason来源于窗体按钮，否则用菜单退出时无法退出! if (e.CloseReason == CloseReason.UserClosing) { //取消"关闭窗口"事件 e.Cancel = true; // 取消关闭窗体 //使关闭时窗口向右下角缩小的效果 this.WindowState = FormWindowState.Minimized; this.mainNotifyIcon.Visible = true; //this.m_cartoonForm.CartoonClose(); this.Hide(); return; } } 实现双击托盘打开主程序
// 添加托盘程序 // 版本更新自1.0.1 private void mainNotifyIcon_MouseDoubleClick(object sender, MouseEventArgs e) { if (this.Visible) { this.WindowState = FormWindowState.Minimized; this.mainNotifyIcon.Visible = true; this.Hide(); } else { this.Visible = true; this.WindowState = FormWindowState.Normal; this.Activate(); } } // 添加托盘程序右键菜单项 // 版本更新自1.0.1 // 退出 // 添加日期 -- 2015-07-29 21:44 private async void toolStripMenuItemQuit_Click(object sender, EventArgs e) { if (MessageBox.Show("你确定要退出？", "系统提示", MessageBoxButtons.YesNo, MessageBoxIcon.Information, MessageBoxDefaultButton.Button1) == DialogResult.Yes) { this.mainNotifyIcon.Visible = false; this.Close(); this.Dispose(); System.Environment.Exit(System.Environment.ExitCode); } } 代码方式添加
using System; using System.Windows.Forms; namespace Fountain.WinForm.NotifyDemo { public partial class FormMain : Form { /// <summary> /// 通知控件 /// </summary> private NotifyIcon notifyIcon = new NotifyIcon(); /// <summary> /// 通知控件显示菜单 /// </summary> private ContextMenuStrip contextMenuStrip = new ContextMenuStrip(); /// <summary> /// 构造方法 /// </summary> public FormMain() { InitializeComponent(); } /// <summary> /// 窗体加载 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void FormMain_Load(object sender, EventArgs e) { this.InitializeNotifyMenu(); this.notifyIcon.Text = this.Text; this.notifyIcon.Visible = true; this.notifyIcon.Icon = this.Icon; this.notifyIcon.ContextMenuStrip = this.contextMenuStrip; this.notifyIcon.DoubleClick += notifyIcon_DoubleClick; } /// <summary> /// 托盘菜单 /// </summary> private void InitializeNotifyMenu() { try { contextMenuStrip.Items.Clear(); ToolStripMenuItem showMenuItem = new ToolStripMenuItem("显示界面"); showMenuItem.Tag = "显示"; showMenuItem.Click += new EventHandler(ShowMenuItem_Click); contextMenuStrip.Items.Add(showMenuItem); ToolStripMenuItem sboutMenuItem = new ToolStripMenuItem("关于"); sboutMenuItem.Tag = "关于"; sboutMenuItem.Click += new EventHandler(AboutMenuItem_Click); contextMenuStrip.Items.Add(sboutMenuItem); ToolStripMenuItem exitMenuItem = new ToolStripMenuItem("退出"); exitMenuItem.Tag = "退出"; exitMenuItem.Click += new EventHandler(ExistMenuItem_Click); contextMenuStrip.Items.Add(exitMenuItem); } catch(Exception exception) { throw new Exception(exception.Message); } } /// <summary> /// 右击任务栏图标 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void notifyIcon_DoubleClick(object sender, EventArgs e) { try { if (this.WindowState == FormWindowState.Normal) { this.WindowState = FormWindowState.Minimized; this.Hide(); } else if (this.WindowState == FormWindowState.Minimized) { this.Show(); this.WindowState = FormWindowState.Normal; this.Activate(); } } catch (Exception objException) { throw new Exception(objException.Message); } } /// <summary> /// 显示 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void ShowMenuItem_Click(object sender, EventArgs e) { try { this.Show(); this.WindowState = FormWindowState.Normal; this.Activate(); } catch (Exception objException) { throw new Exception(objException.Message); } } /// <summary> /// 关于 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void AboutMenuItem_Click(object sender, EventArgs e) { try { } catch (Exception objException) { MessageBox.Show(objException.Message); } } /// <summary> /// 退出 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void ExistMenuItem_Click(object sender, EventArgs e) { try { if (MessageBox.Show("你确定要退出程序吗？","提示", MessageBoxButtons.OKCancel, MessageBoxIcon.Question, MessageBoxDefaultButton.Button2) == DialogResult.OK) { this.notifyIcon.Visible = false; this.notifyIcon.Dispose(); this.Dispose(); Application.Exit(); } } catch (Exception objException) { MessageBox.Show(objException.Message); } } /// <summary> /// 主窗体关闭 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void FormMain_FormClosing(object sender, FormClosingEventArgs e) { try { e.Cancel = true; this.Hide(); this.notifyIcon.Dispose(); } catch (Exception objException) { MessageBox.Show(objException.Message); } } /// <summary> /// 窗体大小变化 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void FormMain_Resize(object sender, EventArgs e) { if (this.WindowState == FormWindowState.Minimized) { this.ShowInTaskbar = false; this.Hide(); this.notifyIcon.Visible = true; } } } } 系统开机自启动应用程序
using Microsoft.Win32; using System; using System.Diagnostics; using System.Windows.Forms; namespace Fountain.WinForm.NotifyDemo { public partial class FormMain : Form { /// <summary> /// 构造方法 /// </summary> public FormMain() { InitializeComponent(); } /// <summary> /// 窗体加载 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void FormMain_Load(object sender, EventArgs e) { //一般不会放这个事件里去设置，而且设置时需要看下注册表要有没有写入成功有的话可以不用调了，偷懒多调一次也没事 string applictionName = Process.GetCurrentProcess().MainModule.ModuleName; string applictionPath = Process.GetCurrentProcess().MainModule.FileName; #region 当前登陆用户的注册表启动项 RegistryKey registryKey = Registry.CurrentUser.CreateSubKey(@"SOFTWAREMicrosoftWindowsCurrentVersionRun"); registryKey.SetValue(applictionName, applictionPath); #endregion #region 所有用户的注册表启动项 //RegistryKey registryKey = Registry.LocalMachine.CreateSubKey(@"SOFTWAREMicrosoftWindowsCurrentVersionRun"); //registryKey.SetValue(applictionName, applictionPath); #endregion } } } 
![洛谷 P11345 [KTSC 2023 R2] 基地简化 题解](http://www.itfaba.com/wp-content/themes/kemi/timthumb.php?src=http://www.itfaba.com/wp-content/themes/kemi/img/random/2.jpg&w=218&h=124&zc=1)
