How do I disable the c# message box beep?

Question

Whenever trigger a messagebox used in my C# program I get a very annoying beep from my computer. How do I disable this beep using C# code.

The code I am using is ve

Answer 1

Here's how I solved that little problem.

Add this simple class to your project. It's part of my personal library now but you can add the class directly in your project

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Runtime.InteropServices;

namespace MyCSharpLibrary
{
    public class Volume
    {
        [DllImport("winmm.dll")]
        public static extern int waveOutGetVolume(IntPtr h, out uint dwVolume);

        [DllImport("winmm.dll")]
        public static extern int waveOutSetVolume(IntPtr h, uint dwVolume);

        private static uint _savedVolumeLevel;
        private static Boolean VolumeLevelSaved = false;

        // ----------------------------------------------------------------------------
        public static void On()
        {
            if (VolumeLevelSaved)
            {
                waveOutSetVolume(IntPtr.Zero, _savedVolumeLevel);
            }
        }

        // ----------------------------------------------------------------------------
        public static void Off()
        {
            waveOutGetVolume(IntPtr.Zero, out _savedVolumeLevel);
            VolumeLevelSaved = true;

            waveOutSetVolume(IntPtr.Zero, 0);
        }
    }
}

Now call Volume.Off() before calling MessageBox and Volume.On() after

Volume.Off();
MessageBox.Show("\n Information \n", "Information", MessageBoxButtons.OK, MessageBoxIcon.Information);
Volume.On();

I prefer that approach because I don't have to make modifications to Windows and I can select any icons I want for my MessageBoxes.

Thank you, bye