Source code for togglemicrophonemute.cs

using System;

using System.Runtime.InteropServices;

namespace RobvanderWoude

{

	internal class ToggleMicrophoneMute

	{

		static readonly string progver = "1.00";

		static int Main( string[] args )

		{

			if ( args.Length == 0 )

			{

				AudioControl.ToggleMicrophoneMute( );

				return 0;

			}

			else

			{

				Console.Error.WriteLine( "ToggleMicrophoneMute.exe, " + progver );

				Console.Error.WriteLine( "Toggle the microphone's muted state" );

				Console.Error.WriteLine( );

				Console.Error.Write( "Usage: " );

				Console.ForegroundColor = ConsoleColor.White;

				Console.Error.WriteLine( "ToggleMicrophoneMute" );

				Console.ResetColor( );

				Console.Error.WriteLine( );

				Console.Error.WriteLine( "Notes: This program is a wrapper for C++ code by Io-oI" );

				Console.Error.Write( "       on " );

				Console.ForegroundColor = ConsoleColor.DarkGray;

				Console.Error.WriteLine( "https://superuser.com/a/1870763" );

				Console.ResetColor( );

				Console.Error.WriteLine( "       No guarantee: if no microphone is available," );

				Console.Error.WriteLine( "       or if it is locked by another program, the" );

				Console.Error.WriteLine( "       (un)mute command is ignored without notification." );

				Console.Error.WriteLine( "       Return code equals -1 if any command line" );

				Console.Error.WriteLine( "       arguments were specified, or 0 otherwise." );

				Console.Error.WriteLine( );

				Console.Error.WriteLine( "Written by Rob van der Woude" );

				Console.Error.WriteLine( "https://www.robvanderwoude.com" );

				return -1;

			}

		}

	}

	// code by Io-oI

	// https://superuser.com/a/1870763

	public class AudioControl

	{

		[DllImport( "user32.dll", CharSet = CharSet.Auto )]

		public static extern int SendMessage( int hWnd, int Msg, int wParam, int lParam );

		public const int WM_APPCOMMAND = 0x319;

		public const int APPCOMMAND_MICROPHONE_VOLUME_MUTE = 0x180000;

		public static void ToggleMicrophoneMute( )

		{

			SendMessage( 0xFFFF, WM_APPCOMMAND, 0, APPCOMMAND_MICROPHONE_VOLUME_MUTE );

		}

	}

}