Initial commit

App.config

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+<?xml version="1.0" encoding="utf-8" ?>
+<configuration>
+    <startup> 
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5" />
+    </startup>
+</configuration>

AppCommandValues.cs

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+namespace MediaButtonsSend
+{
+    public enum AppCommandValues
+    {
+        BrowserBack = 1,
+        BrowserForward = 2,
+        BrowserRefresh = 3,
+        BrowserStop = 4,
+        BrowserSearch = 5,
+        BrowserFavorite = 6,
+        BrowserHome = 7,
+        VolumeMute = 8,
+        VolumeDown = 9,
+        VolumeUp = 10,
+        MediaNext = 11,
+        MediaPrevious = 12,
+        MediaStop = 13,
+        MediaPlayPause = 14,
+        LaunchMail = 15,
+        LaunchMediaSelect = 16,
+        LaunchApp1 = 17,
+        LaunchApp2 = 18,
+        BassDown = 19,
+        BassBoost = 20,
+        BassUp = 21,
+        TrebleUp = 22,
+        TrebleDown = 23,
+        MicrophoneMute = 24,
+        MicrophoneVolumeUp = 25,
+        MicrophoneVolumeDown = 26,
+        Help = 27,
+        Find = 28,
+        New = 29,
+        Open = 30,
+        Close = 31,
+        Save = 32,
+        Print = 33,
+        Undo = 34,
+        Redo = 35,
+        Copy = 36,
+        Cut = 37,
+        Paste = 38,
+        ReplyToMail = 39,
+        ForwardMail = 40,
+        SendMail = 41,
+        SpellCheck = 42,
+        Dictate = 43,
+        MicrophoneOnOff = 44,
+        CorrectionList = 45,
+        MediaPlay = 46,
+        MediaPause = 47,
+        MediaRecord = 48,
+        MediaFastForward = 49,
+        MediaRewind = 50,
+        MediaChannelUp = 51,
+        MediaChannelDown = 52,
+        Delete = 53,
+        Flip3D = 54
+    }
+}

AppCommands.cs

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+using System;
+using System.Runtime.InteropServices;
+using System.Threading;
+using System.Windows.Forms;
+
+namespace MediaButtonsSend
+{
+    //http://msdn.microsoft.com/en-us/library/dd375731%28v=VS.85%29.aspx
+
+    public static class AppCommand
+    {
+        private static ManualResetEvent _mre = new ManualResetEvent(false);
+        private static Form _frm;
+
+        public static void Send(AppCommandValues cmd)
+        {
+            if (_frm == null) Initialize();
+            _frm?.Invoke(new MethodInvoker(() => SendMessage(_frm.Handle, WM_APPCOMMAND, _frm.Handle, (IntPtr)((int)cmd << 16))));
+            Cleanup();
+        }
+
+        private static void Initialize()
+        {
+            // to be able to vork in visual studio (and other similar) running as admin we have to emulate a windows form app.
+            //the UAC UIPI (User Interface Privilege Isolation) kills our keybd_event when running as admin
+            // Run the message loop on another thread so we're compatible with a console mode app
+            var t = new Thread(() =>
+            {
+                _frm = new Form
+                {
+                    ShowInTaskbar = false,
+                    Visible = false,
+                };
+
+                var dummy = _frm.Handle;
+                _frm.BeginInvoke(new MethodInvoker(() => _mre.Set()));
+                Application.Run();
+            });
+            t.SetApartmentState(ApartmentState.STA);
+            t.IsBackground = true;
+            t.Start();
+            _mre.WaitOne();
+
+        }
+
+        public static void Cleanup()
+        {
+            if (_frm != null)
+            {
+                _frm.BeginInvoke(new MethodInvoker(() =>
+                {
+                    _frm.Close();
+                    Application.ExitThread();
+                    _mre.Set();
+                }));
+                _mre.WaitOne();
+                _frm = null;
+            }
+        }
+
+
+
+        // Pinvoke
+        private const int WM_APPCOMMAND = 0x319;
+        [DllImport("user32.dll")]
+        private static extern IntPtr SendMessage(IntPtr hWnd, int msg, IntPtr wp, IntPtr lp);
+    }
+}

FrmHelp.cs

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+using System;
+using System.Windows.Forms;
+
+namespace MediaButtonsSend
+{
+    public partial class FrmHelp : Form
+    {
+        public FrmHelp()
+        {
+            InitializeComponent();
+        }
+
+        private void FrmHelp_Load(object sender, EventArgs e)
+        {
+            TxtValues.Text = string.Join(Environment.NewLine, Enum.GetNames(typeof(AppCommandValues)));
+        }
+
+        private void CmdClose_Click(object sender, EventArgs e)
+        {
+            Close();
+        }
+    }
+}