C# 程序启动最小化至任务栏及闪烁

主要功能：

   C#让窗体最小化至任务栏,同时在系统托盘区的图标点击左键能显示窗体，并使窗体闪烁。

首先：

 创建窗体应用程序，并添加控件NotifyIcon及ContextMenuStrip控件

  NotifyIcon：点击notifyIcon1属性,为控件属性Icon添加图标

  contextMenuStrip1属性,进入Items添加或右键"编辑项".添加4个toolStripMenuItem,设置其Text为"显示窗体"、"隐藏窗体"、"开始闪烁"、"退出"

代码：

点击窗体"关闭"按钮时,取消关闭操作且窗体隐藏,任务栏图标仍然显示:

 //窗体关闭前发生事件  
        private void Form1_FormClosing(object sender, FormClosingEventArgs e)
        {
            if (e.CloseReason == CloseReason.UserClosing)
            {
                e.Cancel = true;           //取消关闭操作 表现为不关闭窗体  
                this.Hide();               //隐藏窗体  
            }
        }

1.左键点击图标时,显示窗体.
2.当鼠标右键点击图标时,显示"显示窗体""隐藏窗体""闪烁""退出"菜单栏,并有相对应的功能

 //"显示窗体"单击事件
        private void 显示ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            this.Show();                                //窗体显示  
            this.WindowState = FormWindowState.Normal;  //窗体状态默认大小  
            this.Activate();
        }
        //"隐藏窗体"单击事件 
        private void 隐藏ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            this.Hide();                      //隐藏窗体 
        }
        //"退出"单击事件 
        private void 退出ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            //点击"是(YES)"退出程序  
            if (MessageBox.Show("确定要退出程序?", "安全提示",
        System.Windows.Forms.MessageBoxButtons.YesNo,
        System.Windows.Forms.MessageBoxIcon.Warning)
        == System.Windows.Forms.DialogResult.Yes)
            {
                notifyIcon1.Visible = false;   //设置图标不可见  
                this.Close();                  //关闭窗体  
                this.Dispose();                //释放资源  
                Application.Exit();            //关闭应用程序窗体  
            }
        }

鼠标左键图标显示窗体功能

//鼠标左键图标事件
        private void notifyIcon1_MouseClick(object sender, MouseEventArgs e)
        {
            //点击鼠标"左键"发生  
            if (e.Button == MouseButtons.Left)
            {
                this.Visible = true;                        //窗体可见  
                this.WindowState = FormWindowState.Normal;  //窗体默认大小  
                this.notifyIcon1.Visible = true;            //设置图标可见  
            }
        }

 图标闪烁

闪烁的效果是加上一个空白的图标，正常图标与空白图标的切换进而实现闪烁的效果。

property是vs的一个资源管理功能，可以存储系统图标及一些常量

private Icon timg = Properties.Resources.timg;
        private Icon blank = Properties.Resources.blank;//透明的图标 
        private bool _status = true;
        private bool _isBlink = false;

右键菜单控制图标是不是显示

private void toolStripMenuItem1_Click(object sender, EventArgs e)
        {
            if (_isBlink == false)
            {
                _isBlink = true;
                timer1.Enabled = true;
                timer1.Start();
            }
            else
            {
                _isBlink = false;
                timer1.Stop();
                //气泡提示
                notifyIcon1.ShowBalloonTip(5000, "提示", "关闭闪烁效果！", ToolTipIcon.Info);
            }
        }

 定时器中修改图标的状态，定时反转图标

private void timer1_Tick(object sender, EventArgs e)
        {
            
            if (_status)
                notifyIcon1.Icon = timg;
            else
                notifyIcon1.Icon = blank;

            _status = !_status;
        }

完整代码：

public partial class Form1 : Form
    {
        private Icon timg = Properties.Resources.timg;
        private Icon blank = Properties.Resources.blank;//透明的图标 
        private bool _status = true;
        private bool _isBlink = false;
        public Form1()
        {
            InitializeComponent();
        }
        


        //窗体关闭前发生事件  
        private void Form1_FormClosing(object sender, FormClosingEventArgs e)
        {
            if (e.CloseReason == CloseReason.UserClosing)
            {
                e.Cancel = true;           //取消关闭操作 表现为不关闭窗体  
                this.Hide();               //隐藏窗体  
            }
        }
        //"显示窗体"单击事件
        private void 显示ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            this.Show();                                //窗体显示  
            this.WindowState = FormWindowState.Normal;  //窗体状态默认大小  
            this.Activate();
        }
        //"隐藏窗体"单击事件 
        private void 隐藏ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            this.Hide();                      //隐藏窗体 
        }
        //"退出"单击事件 
        private void 退出ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            //点击"是(YES)"退出程序  
            if (MessageBox.Show("确定要退出程序?", "安全提示",
        System.Windows.Forms.MessageBoxButtons.YesNo,
        System.Windows.Forms.MessageBoxIcon.Warning)
        == System.Windows.Forms.DialogResult.Yes)
            {
                notifyIcon1.Visible = false;   //设置图标不可见  
                this.Close();                  //关闭窗体  
                this.Dispose();                //释放资源  
                Application.Exit();            //关闭应用程序窗体  
            }
        }
        //鼠标左键图标事件
        private void notifyIcon1_MouseClick(object sender, MouseEventArgs e)
        {
            //点击鼠标"左键"发生  
            if (e.Button == MouseButtons.Left)
            {
                this.Visible = true;                        //窗体可见  
                this.WindowState = FormWindowState.Normal;  //窗体默认大小  
                this.notifyIcon1.Visible = true;            //设置图标可见  
            }
        }

        
        private void toolStripMenuItem1_Click(object sender, EventArgs e)
        {
            if (_isBlink == false)
            {
                _isBlink = true;
                timer1.Enabled = true;
                timer1.Start();
            }
            else
            {
                _isBlink = false;
                timer1.Stop();
                //气泡提示
                notifyIcon1.ShowBalloonTip(5000, "提示", "关闭闪烁效果！", ToolTipIcon.Info);
            }
        }
        private void timer1_Tick(object sender, EventArgs e)
        {
            
            if (_status)
                notifyIcon1.Icon = timg;
            else
                notifyIcon1.Icon = blank;

            _status = !_status;
        }

    }