.

Summary

The FlashWindow API

C# Signature:

[DllImport("user32.dll")]
static extern bool FlashWindow(IntPtr hwnd, bool bInvert);

User-Defined Types:

None.

Notes:

Flashes the taskbar button of the window once to get the user's attention. This only happens if bInvert is true.

Lässt das Fenster in der Taskbar aufleuchten, man muss aber bInvert auf true setzen.

Tips & Tricks:

Please add some!

Sample Code - C# - sivakumar.keerthi

using System;

using System.Drawing;

using System.Collections;

using System.ComponentModel;

using System.Windows.Forms;

using System.Data;

using System.Runtime.InteropServices;

using System.Diagnostics;

namespace WindowsApplication1

{

    /// <summary>
    /// Summary description for Form1.
    /// </summary>
    public class Form1 : System.Windows.Forms.Form
    {
        /// <summary>
        /// Required designer variable.
        /// </summary>
        [DllImport("user32.dll")]
        public static extern int FlashWindow( IntPtr Hwnd , bool Revert );        
        private System.ComponentModel.Container components = null;

        public Form1()
        {
            //
            // Required for Windows Form Designer support
            //
            InitializeComponent();
            //
            // TODO: Add any constructor code after InitializeComponent call
            //
        }

        /// <summary>
        /// Clean up any resources being used.
        /// </summary>
        protected override void Dispose( bool disposing )
        {
            if( disposing )
            {
                if (components != null)
                {
                    components.Dispose();
                }
            }
            base.Dispose( disposing );
        }

        #region Windows Form Designer generated code
        /// <summary>
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        /// </summary>
        private void InitializeComponent()
        {
            this.SuspendLayout();
            //
            // Form1
            //
            this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
            this.ClientSize = new System.Drawing.Size(528, 266);
            this.Name = "Form1";
            this.Text = "Form1";
            this.Load += new System.EventHandler(this.Form1_Load);
            this.ResumeLayout(false);

        }
        #endregion

        /// <summary>
        /// The main entry point for the application.
        /// </summary>
        [STAThread]
        static void Main()
        {

            Application.Run(new Form1());
        }

        private void Form1_Load(object sender, System.EventArgs e)
        {
            FlashWindow( this.Handle , false );
        }
    }

}

Sample Code:

    [DllImport("user32.dll")]
    private static extern bool FlashWindow(IntPtr hwnd, bool bInvert);

    public static void FlashWindow(System.Windows.Forms.Form window)
    {
        FlashWindow(window.Handle, false);
    }

Alternative Managed API:

Omnicoder's Managed Windows API Project: http://www.fileden.com/files/2008/4/5/1852663/ManWinAPI.zip

Documentation

FlashWindow on MSDN