Removed nircmd.exe

Changed Mute and UnMute function to work with both x86 and x64 processes on Windows 7 or newer
Added functions to manipulate the Volume Control of Spotify
This commit is contained in:
mrnikbobjeff 2015-10-17 11:55:27 +02:00
parent 49441bba95
commit 53ff432425
3 changed files with 309 additions and 9 deletions

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@ -2,6 +2,7 @@
using System;
using System.ComponentModel;
using System.Diagnostics;
using System.Diagnostics.Contracts;
using System.IO;
using System.Runtime.InteropServices;
using System.Timers;
@ -13,9 +14,6 @@ namespace SpotifyAPI.Local
[DllImport("user32.dll")]
private static extern void keybd_event(byte bVk, byte bScan, uint dwFlags, int dwExtraInfo);
[DllImport("nircmd.dll", CharSet = CharSet.Auto)]
private static extern bool DoNirCmd(String nirCmdStr);
private bool _listenForEvents;
public bool ListenForEvents
@ -159,21 +157,72 @@ namespace SpotifyAPI.Local
}
/// <summary>
/// Mutes Spotify (Requires nircmd.dll)
/// Mutes Spotify (Requires Windows 7 or newer)
/// </summary>
public void Mute()
{
if (File.Exists("nircmd.dll"))
DoNirCmd("muteappvolume spotify.exe 1");
//Windows < Windows Vista Check
Contract.Requires(Environment.OSVersion.Version.Major >= 6);
//Windows Vista Check
if (Environment.OSVersion.Version.Major == 6)
Contract.Requires(Environment.OSVersion.Version.Minor != 0);
VolumeMixerControl.MuteSpotify(true);
}
/// <summary>
/// Unmutes Spotify (Requires nircmd.dll)
/// Unmutes Spotify (Requires Windows 7 or newer)
/// </summary>
public void UnMute()
{
if (File.Exists("nircmd.dll"))
DoNirCmd("muteappvolume spotify.exe 0");
//Windows < Windows Vista Check
Contract.Requires(Environment.OSVersion.Version.Major >= 6);
//Windows Vista Check
if (Environment.OSVersion.Version.Major == 6)
Contract.Requires(Environment.OSVersion.Version.Minor != 0);
VolumeMixerControl.MuteSpotify(false);
}
/// <summary>
/// Checks whether Spotify is muted in the Volume Mixer control
/// </summary>
/// <returns>Null if an error occured, otherwise the muted state</returns>
public bool? IsSpotifyMuted()
{
//Windows < Windows Vista Check
Contract.Requires(Environment.OSVersion.Version.Major >= 6);
//Windows Vista Check
if (Environment.OSVersion.Version.Major == 6)
Contract.Requires(Environment.OSVersion.Version.Minor != 0);
return VolumeMixerControl.IsSpotifyMuted();
}
/// <summary>
/// Sets the Volume Mixer volume (requires Windows 7 or newer)
/// </summary>
/// <param name="volume">A Value between 0 and 100</param>
public void SetSpotifyVolume(float volume = 100)
{
Contract.Requires(0 <= volume && volume <= 100);
//Windows < Windows Vista Check
Contract.Requires(Environment.OSVersion.Version.Major >= 6);
//Windows Vista Check
if (Environment.OSVersion.Version.Major == 6)
Contract.Requires(Environment.OSVersion.Version.Minor != 0);
VolumeMixerControl.SetSpotifyVolume(volume);
}
/// <summary>
/// Return the Volume Mixer volume of Spotify (requires Windows 7 or newer)
/// </summary>
/// <returns>Null if an error occured, otherwise a float between 0 and 100</returns>
public float? GetSpotifyVolume()
{
//Windows < Windows Vista Check
Contract.Requires(Environment.OSVersion.Version.Major >= 6);
//Windows Vista Check
if (Environment.OSVersion.Version.Major == 6)
Contract.Requires(Environment.OSVersion.Version.Minor != 0);
return VolumeMixerControl.GetSpotifyVolume();
}
/// <summary>

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@ -0,0 +1,250 @@
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading.Tasks;
namespace SpotifyAPI.Local
{
internal class VolumeMixerControl
{
private const String SPOTIFY_PROCESS_NAME = "spotify";
internal static float? GetSpotifyVolume()
{
Process[] p = Process.GetProcessesByName(SPOTIFY_PROCESS_NAME);
if (p.Length == 0)
return null;
int pid = p[0].Id;
ISimpleAudioVolume volume = GetVolumeObject(pid);
if (volume == null)
return null;
float level;
volume.GetMasterVolume(out level);
Marshal.ReleaseComObject(volume);
return level * 100;
}
internal static bool? IsSpotifyMuted()
{
Process[] p = Process.GetProcessesByName(SPOTIFY_PROCESS_NAME);
if (p.Length == 0)
return null;
int pid = p[0].Id;
ISimpleAudioVolume volume = GetVolumeObject(pid);
if (volume == null)
return null;
bool mute;
volume.GetMute(out mute);
Marshal.ReleaseComObject(volume);
return mute;
}
internal static void SetSpotifyVolume(float level)
{
Process[] p = Process.GetProcessesByName(SPOTIFY_PROCESS_NAME);
if (p.Length == 0)
return;
int pid = p[0].Id;
ISimpleAudioVolume volume = GetVolumeObject(pid);
if (volume == null)
return;
Guid guid = Guid.Empty;
volume.SetMasterVolume(level / 100, ref guid);
Marshal.ReleaseComObject(volume);
}
internal static void MuteSpotify(bool mute)
{
Process[] p = Process.GetProcessesByName(SPOTIFY_PROCESS_NAME);
if (p.Length == 0)
return;
int pid = p[0].Id;
ISimpleAudioVolume volume = GetVolumeObject(pid);
if (volume == null)
return;
Guid guid = Guid.Empty;
volume.SetMute(mute, ref guid);
Marshal.ReleaseComObject(volume);
}
private static ISimpleAudioVolume GetVolumeObject(int pid)
{
// get the speakers (1st render + multimedia) device
IMMDeviceEnumerator deviceEnumerator = (IMMDeviceEnumerator)(new MMDeviceEnumerator());
IMMDevice speakers;
deviceEnumerator.GetDefaultAudioEndpoint(EDataFlow.eRender, ERole.eMultimedia, out speakers);
// activate the session manager. we need the enumerator
Guid IID_IAudioSessionManager2 = typeof(IAudioSessionManager2).GUID;
object o;
speakers.Activate(ref IID_IAudioSessionManager2, 0, IntPtr.Zero, out o);
IAudioSessionManager2 mgr = (IAudioSessionManager2)o;
// enumerate sessions for on this device
IAudioSessionEnumerator sessionEnumerator;
mgr.GetSessionEnumerator(out sessionEnumerator);
int count;
sessionEnumerator.GetCount(out count);
// search for an audio session with the required name
// NOTE: we could also use the process id instead of the app name (with IAudioSessionControl2)
ISimpleAudioVolume volumeControl = null;
for (int i = 0; i < count; i++)
{
IAudioSessionControl2 ctl;
sessionEnumerator.GetSession(i, out ctl);
int cpid;
ctl.GetProcessId(out cpid);
if (cpid == pid)
{
volumeControl = ctl as ISimpleAudioVolume;
break;
}
Marshal.ReleaseComObject(ctl);
}
Marshal.ReleaseComObject(sessionEnumerator);
Marshal.ReleaseComObject(mgr);
Marshal.ReleaseComObject(speakers);
Marshal.ReleaseComObject(deviceEnumerator);
return volumeControl;
}
[ComImport]
[Guid("BCDE0395-E52F-467C-8E3D-C4579291692E")]
private class MMDeviceEnumerator
{
}
private enum EDataFlow
{
eRender,
eCapture,
eAll,
EDataFlow_enum_count
}
private enum ERole
{
eConsole,
eMultimedia,
eCommunications,
ERole_enum_count
}
[Guid("A95664D2-9614-4F35-A746-DE8DB63617E6"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
private interface IMMDeviceEnumerator
{
int NotImpl1();
[PreserveSig]
int GetDefaultAudioEndpoint(EDataFlow dataFlow, ERole role, out IMMDevice ppDevice);
}
[Guid("D666063F-1587-4E43-81F1-B948E807363F"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
private interface IMMDevice
{
[PreserveSig]
int Activate(ref Guid iid, int dwClsCtx, IntPtr pActivationParams, [MarshalAs(UnmanagedType.IUnknown)] out object ppInterface);
}
[Guid("77AA99A0-1BD6-484F-8BC7-2C654C9A9B6F"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
private interface IAudioSessionManager2
{
int NotImpl1();
int NotImpl2();
[PreserveSig]
int GetSessionEnumerator(out IAudioSessionEnumerator SessionEnum);
}
[Guid("E2F5BB11-0570-40CA-ACDD-3AA01277DEE8"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
private interface IAudioSessionEnumerator
{
[PreserveSig]
int GetCount(out int SessionCount);
[PreserveSig]
int GetSession(int SessionCount, out IAudioSessionControl2 Session);
}
[Guid("87CE5498-68D6-44E5-9215-6DA47EF883D8"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
private interface ISimpleAudioVolume
{
[PreserveSig]
int SetMasterVolume(float fLevel, ref Guid EventContext);
[PreserveSig]
int GetMasterVolume(out float pfLevel);
[PreserveSig]
int SetMute(bool bMute, ref Guid EventContext);
[PreserveSig]
int GetMute(out bool pbMute);
}
[Guid("bfb7ff88-7239-4fc9-8fa2-07c950be9c6d"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
private interface IAudioSessionControl2
{
[PreserveSig]
int NotImpl0();
[PreserveSig]
int GetDisplayName([MarshalAs(UnmanagedType.LPWStr)] out string pRetVal);
[PreserveSig]
int SetDisplayName([MarshalAs(UnmanagedType.LPWStr)]string Value, [MarshalAs(UnmanagedType.LPStruct)] Guid EventContext);
[PreserveSig]
int GetIconPath([MarshalAs(UnmanagedType.LPWStr)] out string pRetVal);
[PreserveSig]
int SetIconPath([MarshalAs(UnmanagedType.LPWStr)] string Value, [MarshalAs(UnmanagedType.LPStruct)] Guid EventContext);
[PreserveSig]
int GetGroupingParam(out Guid pRetVal);
[PreserveSig]
int SetGroupingParam([MarshalAs(UnmanagedType.LPStruct)] Guid Override, [MarshalAs(UnmanagedType.LPStruct)] Guid EventContext);
[PreserveSig]
int NotImpl1();
[PreserveSig]
int NotImpl2();
[PreserveSig]
int GetSessionIdentifier([MarshalAs(UnmanagedType.LPWStr)] out string pRetVal);
[PreserveSig]
int GetSessionInstanceIdentifier([MarshalAs(UnmanagedType.LPWStr)] out string pRetVal);
[PreserveSig]
int GetProcessId(out int pRetVal);
[PreserveSig]
int IsSystemSoundsSession();
[PreserveSig]
int SetDuckingPreference(bool optOut);
}
}
}

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@ -56,6 +56,7 @@
<Compile Include="Local\ExtendedWebClient.cs">
<SubType>Component</SubType>
</Compile>
<Compile Include="Local\VolumeMixerControl.cs" />
<Compile Include="Web\IClient.cs" />
<Compile Include="Local\Models\CFID.cs" />
<Compile Include="Local\Enums\AlbumArtSize.cs" />