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Possible fix for volume-control (#66) #68

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Merged
merged 1 commit into from
Dec 25, 2015
Merged

Possible fix for volume-control (#66) #68

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41 changes: 20 additions & 21 deletions SpotifyAPI/Local/VolumeMixerControl.cs
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Original file line number Diff line number Diff line change
@@ -1,20 +1,17 @@
using System;
using System.Diagnostics;
using System.Linq;
using System.Runtime.InteropServices;

namespace SpotifyAPI.Local
{
internal class VolumeMixerControl
internal static class VolumeMixerControl
{
private const String SpotifyProcessName = "spotify";

internal static float GetSpotifyVolume()
{
Process[] p = Process.GetProcessesByName(SpotifyProcessName);
if (p.Length == 0)
throw new Exception("Spotify process is not running or was not found!");

int pid = p[0].Id;
int pid = GetSpotifyPid();

ISimpleAudioVolume volume = GetVolumeObject(pid);
if (volume == null)
Expand All @@ -30,11 +27,7 @@ internal static float GetSpotifyVolume()

internal static bool IsSpotifyMuted()
{
Process[] p = Process.GetProcessesByName(SpotifyProcessName);
if (p.Length == 0)
throw new Exception("Spotify process is not running or was not found!");

int pid = p[0].Id;
int pid = GetSpotifyPid();

ISimpleAudioVolume volume = GetVolumeObject(pid);
if (volume == null)
Expand All @@ -50,11 +43,7 @@ internal static bool IsSpotifyMuted()

internal static void SetSpotifyVolume(float level)
{
Process[] p = Process.GetProcessesByName(SpotifyProcessName);
if (p.Length == 0)
throw new Exception("Spotify process is not running or was not found!");

int pid = p[0].Id;
int pid = GetSpotifyPid();

ISimpleAudioVolume volume = GetVolumeObject(pid);
if (volume == null)
Expand All @@ -69,11 +58,7 @@ internal static void SetSpotifyVolume(float level)

internal static void MuteSpotify(bool mute)
{
Process[] p = Process.GetProcessesByName(SpotifyProcessName);
if (p.Length == 0)
throw new Exception("Spotify process is not running or was not found!");

int pid = p[0].Id;
int pid = GetSpotifyPid();

ISimpleAudioVolume volume = GetVolumeObject(pid);
if (volume == null)
Expand All @@ -86,6 +71,20 @@ internal static void MuteSpotify(bool mute)
Marshal.ReleaseComObject(volume);
}

private static int GetSpotifyPid()
{
Process[] processes = Process.GetProcessesByName(SpotifyProcessName);
if (processes.Length == 0)
throw new Exception("Spotify process is not running or was not found!");

Process mainProc = processes.FirstOrDefault(o => o.MainWindowHandle != IntPtr.Zero);

if(mainProc == null)
throw new Exception("Spotify main-process is not running or was not found!");

return mainProc.Id;
}

private static ISimpleAudioVolume GetVolumeObject(int pid)
{
// get the speakers (1st render + multimedia) device
Expand Down