C#实现动态图标闪烁显示的示例代码

public partial class Form1 : Form { public Form1() { InitializeComponent(); } private Thread td; private TcpListener tcpListener; string message=""; private void Form1_Load(object sender, EventArgs e) { td = new Thread(new ThreadStart(this.StartListen)); td.Start(); } private void StartListen() { tcpListener = new TcpListener(888); tcpListener.Start(); while (true) { TcpClient tclient = tcpListener.AcceptTcpClient();  //接受连接请求 NetworkStream nstream = tclient.GetStream();        //获取数据流 byte[] mbyte = new byte[1024];                      //建立缓存 int i = nstream.Read(mbyte, 0, mbyte.Length);       //将数据流写入缓存 message = Encoding.Default.GetString(mbyte, 0, i); } } private void Form1_FormClosed(object sender, FormClosedEventArgs e) { if (this.tcpListener != null) { tcpListener.Stop(); } if (td != null) { if (td.ThreadState == ThreadState.Running) { td.Abort(); } } } private void button1_Click(object sender, EventArgs e) { try { IPAddress[] ip = Dns.GetHostAddresses(Dns.GetHostName()); string message ="你好兄弟"; TcpClient client = new TcpClient(txtAdd.Text, 888); NetworkStream netstream = client.GetStream(); StreamWriter wstream = new StreamWriter(netstream, Encoding.Default); wstream.Write(message); wstream.Flush(); wstream.Close(); client.Close(); } catch (Exception ex) { MessageBox.Show(ex.Message); } } bool k = true; private void timer1_Tick(object sender, EventArgs e) { if (message.Length > 0) { if (k) { notifyIcon1.Icon = Properties.Resources._1; k = false; } else { notifyIcon1.Icon = Properties.Resources._2; k = true; } } } private void button2_Click(object sender, EventArgs e) { message = ""; notifyIcon1.Icon = Properties.Resources._3; } } 

partial class Form1 { /// 
 /// 必需的设计器变量。 /// 
 private System.ComponentModel.IContainer components = null; /// 
 /// 清理所有正在使用的资源。 /// 
 /// 如果应释放托管资源，为 true；否则为 false。 protected override void Dispose(bool disposing) { if (disposing && (components != null)) { components.Dispose(); } base.Dispose(disposing); } #region Windows 窗体设计器生成的代码 /// 
 /// 设计器支持所需的方法 - 不要 /// 使用代码编辑器修改此方法的内容。 /// 
 private void InitializeComponent() { this.components = new System.ComponentModel.Container(); System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(Form1)); this.notifyIcon1 = new System.Windows.Forms.NotifyIcon(this.components); this.timer1 = new System.Windows.Forms.Timer(this.components); this.txtAdd = new System.Windows.Forms.TextBox(); this.button1 = new System.Windows.Forms.Button(); this.label1 = new System.Windows.Forms.Label(); this.groupBox1 = new System.Windows.Forms.GroupBox(); this.button2 = new System.Windows.Forms.Button(); this.groupBox1.SuspendLayout(); this.SuspendLayout(); // // notifyIcon1 // this.notifyIcon1.Icon = ((System.Drawing.Icon)(resources.GetObject("notifyIcon1.Icon"))); this.notifyIcon1.Visible = true; // // timer1 // this.timer1.Enabled = true; this.timer1.Interval = 500; this.timer1.Tick += new System.EventHandler(this.timer1_Tick); // // txtAdd // this.txtAdd.Location = new System.Drawing.Point(145, 36); this.txtAdd.Name = "txtAdd"; this.txtAdd.Size = new System.Drawing.Size(193, 21); this.txtAdd.TabIndex = 0; // // button1 // this.button1.Location = new System.Drawing.Point(103, 96); this.button1.Name = "button1"; this.button1.Size = new System.Drawing.Size(75, 23); this.button1.TabIndex = 1; this.button1.Text = "发送消息"; this.button1.UseVisualStyleBackColor = true; this.button1.Click += new System.EventHandler(this.button1_Click); // // label1 // this.label1.AutoSize = true; this.label1.Location = new System.Drawing.Point(26, 39); this.label1.Name = "label1"; this.label1.Size = new System.Drawing.Size(113, 12); this.label1.TabIndex = 2; this.label1.Text = "输入对方主机地址："; // // groupBox1 // this.groupBox1.Controls.Add(this.button2); this.groupBox1.Controls.Add(this.button1); this.groupBox1.Controls.Add(this.label1); this.groupBox1.Controls.Add(this.txtAdd); this.groupBox1.Location = new System.Drawing.Point(13, 13); this.groupBox1.Name = "groupBox1"; this.groupBox1.Size = new System.Drawing.Size(353, 154); this.groupBox1.TabIndex = 3; this.groupBox1.TabStop = false; this.groupBox1.Text = "发送消息"; // // button2 // this.button2.Location = new System.Drawing.Point(184, 96); this.button2.Name = "button2"; this.button2.Size = new System.Drawing.Size(75, 23); this.button2.TabIndex = 3; this.button2.Text = "停止闪动"; this.button2.UseVisualStyleBackColor = true; this.button2.Click += new System.EventHandler(this.button2_Click); // // Form1 // this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F); this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font; this.ClientSize = new System.Drawing.Size(380, 182); this.Controls.Add(this.groupBox1); this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle; this.MaximizeBox = false; this.MinimizeBox = false; this.Name = "Form1"; this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen; this.Text = "动态托盘图标"; this.Load += new System.EventHandler(this.Form1_Load); this.FormClosed += new System.Windows.Forms.FormClosedEventHandler(this.Form1_FormClosed); this.groupBox1.ResumeLayout(false); this.groupBox1.PerformLayout(); this.ResumeLayout(false); } #endregion private System.Windows.Forms.NotifyIcon notifyIcon1; private System.Windows.Forms.Timer timer1; private System.Windows.Forms.TextBox txtAdd; private System.Windows.Forms.Button button1; private System.Windows.Forms.Label label1; private System.Windows.Forms.GroupBox groupBox1; private System.Windows.Forms.Button button2; }