FlashWindow

C# 调用COM实现窗体闪烁

  using System.Runtime.InteropServices;       
  [DllImport("user32")]
  public static extern bool FlashWindow(IntPtr hwnd, bool bInvert);


          private void button_Click(object sender, EventArgs e)
        {
            try
            {

                for (int i = 0; i < 40; i++)
                {

                    FlashWindow(this.Handle, true);

                    System.Threading.Thread.Sleep(50);

                }

            }

            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            } 
        }