托盘实现

系统托盘的实现：
控件：NotifyIcon

 

// 点击最小化按钮则隐藏窗体，显示托盘图标

private void Form1_Resize(object sender, EventArgs e)
        {
            if (this.WindowState == FormWindowState.Minimized) //最小化
            {
                notifyIcon1.Visible = true; //托盘可见
                this.Visible = false;  //窗体不可见
            }
            else
            {
                notifyIcon1.Visible = false;
                this.Visible = true;
            }
        }

 

// 左键双击托盘图标，显示窗体

private void notifyIcon1_MouseDoubleClick(object sender, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Left)  //判断双击的是左键
            {
                this.Visible = true; //显示窗体
                this.WindowState = FormWindowState.Normal;              
                this.Activate();  //获取焦点，将一个窗体显示在最前面
                notifyIcon1.Visible = false; //托盘图标不可见
            }
        }

 

右键点击托盘图标，出现右键菜单项（"显示"，"退出"）

控件：ContextMenuStrip （上下文菜单）

在控件上添加“显示”、“退出”项；

将此上下文菜单关联到托盘控件上；（NotifyIcon控件的ContextMenuStrip属性设置为上下文菜单的对象）

 

单击这两菜单项的事件：

 private void 显示ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            this.Visible = true;
            this.WindowState = FormWindowState.Normal;
            this.Activate();
            notifyIcon1.Visible = false;
        }

 private void 退出ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            Application.Exit();
        }