C#实现标题闪烁效果的示例代码

using System.Runtime.InteropServices;

[DllImport("user32.dll", SetLastError = true)]
public static extern bool FlashWindow(IntPtr hWnd, bool bInvert);

// 让窗体闪烁起来
using System.Runtime.InteropServices;
namespace _168_2
{
    class Program
    {
        [DllImport("user32.dll", SetLastError = true)]
        public static extern bool FlashWindow(IntPtr hWnd, bool bInvert);
 
        [DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Unicode)]
        public static extern IntPtr FindWindow(string? lpClassName, string lpWindowName);
 
        static void Main(string[] args)
        {
            ArgumentNullException.ThrowIfNull(args);
            // 获取当前窗口的句柄
            IntPtr hWnd = FindWindow(null, "新建文本文档 - 记事本");
 
            if (hWnd != IntPtr.Zero)
            {
                while (true)
                {
                    // 闪烁窗口
                    FlashWindow(hWnd, true);
                    Console.WriteLine("窗口闪烁成功！");
                    // 等待2秒钟
                    Thread.Sleep(2000);
                }
            }
            else
            {
                Console.WriteLine("未找到指定的窗口。");
            }
            Console.ReadKey();
        }
    }
}

// 闪烁的标题栏
using System.Windows.Forms;
 
namespace _168
{
    public partial class Form1 : Form
    {
        private PictureBox? pictureBox1;
        private Button? button1;
        private Button? button2;
        private System.Windows.Forms.Timer? timer1;
 
        public Form1()
        {
            InitializeComponent();
            StartPosition = FormStartPosition.CenterScreen;
            Load += Form1_Load;
        }
 
        //重写API函数，用来实现窗体标题栏闪烁功能
        [System.Runtime.InteropServices.DllImport("user32.dll")]
        public static extern bool FlashWindow(IntPtr handle, bool bInvert);
 
        private void Timer1_Tick(object? sender, EventArgs e)
        {
            FlashWindow(Handle, true);//启用窗体闪烁函数
        }
 
        private void Button1_Click(object? sender, EventArgs e)
        {
            timer1!.Enabled = true;//启动计时器
        }
 
        private void Button2_Click(object? sender, EventArgs e)
        {
            timer1!.Enabled = false;//关闭计时器
        }
 
        private void Form1_Load(object? sender, EventArgs e)
        {
            // 
            // button1
            // 
            button1 = new Button
            {
                Location = new Point(45, 50),
                Name = "button1",
                Size = new Size(75, 23),
                TabIndex = 1,
                Text = "开始闪烁",
                UseVisualStyleBackColor = true
            };
            button1.Click += new EventHandler(Button1_Click);
            // 
            // button2
            // 
            button2 = new Button
            {
                Location = new Point(150, 50),
                Name = "button2",
                Size = new Size(75, 23),
                TabIndex = 2,
                Text = "停止闪烁",
                UseVisualStyleBackColor = true
            };
            button2.Click += new EventHandler(Button2_Click);
 
            // 
            // pictureBox1
            // 
            pictureBox1 = new PictureBox
            {
                Dock = DockStyle.Fill,
                Location = new Point(0, 0),
                Name = "pictureBox1",
                Size = new Size(325, 127),
                TabIndex = 0,
                TabStop = false
            };
            pictureBox1.Controls.Add(button2);
            pictureBox1.Controls.Add(button1);
            
            // 
            // timer1
            // 
            timer1 = new System.Windows.Forms.Timer(components);
            timer1.Tick += new EventHandler(Timer1_Tick);
            // 
            // Form1
            // 
            AutoScaleDimensions = new SizeF(7F, 17F);
            AutoScaleMode = AutoScaleMode.Font;
            ClientSize = new Size(266, 155);
            
            Controls.Add(pictureBox1);
            Name = "Frm_Main";
            Name = "Form1";
            Text = "闪烁的标题栏";
            ResumeLayout(false);
        }
    }
}