Topic: turn system sound volume up

[BillZndl]

Autocad 2012, VS2010 net 3.5,C# Windows 7

Anyone know how to access/change the computer speaker volume from C# directly?
I've searched extensively and everything I find creates a form with sliders.
I'd like to turn the volume to full before I play an .mp3 file from a .dll netloaded into AutoCAD.
This code works for the instantiated media player but doesn't affect the speaker sound of the computer.
Trying to figure out if there's a way to get the handle for the main volume.

Code - C#: [Select]

1. namespace Whistles
2. {  
3.  
4.     public class Whistle
5.     {    
6.         public Whistle()
7.         {          
8.         }      
9.  
10.         [CommandMethod("Whistles", CommandFlags.Session)]
11.  
12.         public void PlayFile()
13.         {
14.            
15.             System.Audio.Volume = 100; // for 100%          
16.  
17.             MediaPlayer mp = new MediaPlayer();
18.             mp.Open(new Uri(@"G:/AutoCAD2012Support/VisualStudio2010/WhistleSounds/Samsung_whistle_ringtone.mp3", UriKind.Absolute));
19.             mp.Play();
20.  
21.             System.Audio.Volume = 14;
22.         }
23.     }
24. }
25.  
26. namespace System
27. {
28.     public partial class Audio
29.     {
30.         [DllImport("winmm.dll")]
31.         static extern int waveOutGetVolume(IntPtr hwo, out uint dwVolume);
32.  
33.         [DllImport("winmm.dll")]
34.         static extern int waveOutSetVolume(IntPtr hwo, uint dwVolume);
35.  
36.         public static int Volume
37.         {
38.             get
39.             {
40.                 uint CurrVol = 100;
41.                 ushort CalcVol = (ushort)(CurrVol & 0x0000ffff);
42.                 return CalcVol;/// (ushort.MaxValue / 100);
43.             }
44.             set
45.             {                
46.                 int NewVolume = value;
47.                 uint NewVolumeAllChannels = ((uint)NewVolume & 0x0000ffff);
48.                 waveOutSetVolume(IntPtr.Zero, NewVolumeAllChannels);
49.             }
50.         }
51.     }  
52. }                              
53.  

[BlackBox]

If rolling your own implementation instead of using something like NirCmd, P/Invoke User32, and use either SendMessageW() + VOLUME_UP const, or KeyBd_Event() + Keys.VolumeUp enum.

[BillZndl]

Yes, I seem to be having some progress.
I think I am getting the correct window handle of the main window.
I am not sure if I am getting the correct msg.
still researching. 

Code - C#: [Select]

1. public class Whistle
2.     {    
3.         public Whistle()
4.         {          
5.         }      
6.  
7.         [CommandMethod("Whistles", CommandFlags.Session)]
8.  
9.         public void PlayFile()
10.         {          
11.  
12.             IntPtr hWnd = Process.GetProcessesByName("explorer")[0].MainWindowHandle;
13.            
14.             uint msg = 0x319;//<<< not sure about this one.
15.  
16.             UIntPtr VOLUME_UP = (UIntPtr)0x319; //0xA0000;
17.             IntPtr lParam = IntPtr.Zero;
18.  
19.             IntPtr e = DirectVolume.VolUp.SendMessageW(hWnd, msg, VOLUME_UP, lParam);
20.  
21.             System.Windows.MessageBox.Show( "Value of e : " + e.ToString());
22.  
23.             if (e.ToInt32() > 0)
24.             {
25.                 MediaPlayer mp = new MediaPlayer();
26.                 mp.Open(new Uri(@"G:/AutoCAD2012Support/VisualStudio2010/WhistleSounds/Samsung_whistle_ringtone.mp3", UriKind.RelativeOrAbsolute));
27.                 mp.Play();
28.             }
29.         }
30.     }
31. }
32. namespace DirectVolume
33. {
34.     public partial class VolUp
35.     {      
36.  
37.         [DllImport("User32.dll")]
38.         public static extern IntPtr FindWindow(String sClassName, String sAppName);        
39.         [DllImport("User32.dll")]
40.         public static extern IntPtr SendMessageW(IntPtr hWnd, uint msg, UIntPtr VOLUME_UP, IntPtr lParam);
41.  
42.  
43.     //P/Invoke User32, and use either SendMessageW() + VOLUME_UP const, or KeyBd_Event() + Keys.VolumeUp enum.
44.     //const int VOLUME_UP = 0xA0000;
45.     }
46. }
47.  
48.  

[nobody]

Haha...this could be pretty messed up to do to fellow workers

[BlackBox]

Haha...this could be pretty messed up to do to fellow workers

You may enjoy this old thread:

http://forums.augi.com/showthread.php?53823-AutoCAD-Speak&p=1136822&viewfull=1#post1136822

[nobody]

haha...that's great stuff

[BillZndl]

Haha...this could be pretty messed up to do to fellow workers

My primary goal wasn't to "mess" with co-workers but......
There is a guy that uses a ring tone that we all find annoying.
So I thought if I could make a few machines around him occasionally play the same ringtone,
it may help him look for another tone to use.
 
Trouble is, the .mp3's are barely audiable when a machine is on 15%-20%,
which most of the machines are becaus the beeps are much louder at that setting,
so I need to turn up the volume and down again after playing the mp3.

[BlackBox]

Perhaps a simpler way of going about this, depending on your domain credentials, is to simply use PowerShell... See this thread for the Set-Speaker calls, among other options:

http://stackoverflow.com/questions/21355891/change-audio-level-from-powershell



... One member even wrote his own PowerShell CmdLet, which exposes:

• Get-DefaultAudioDevice
• Get-AudioDeviceList
• Set-DefaultAudioDevice [-Index] <Int>
• Set-DefaultAudioDevice [-Name] <String>
• Set-DefaultAudioDevice [-InputObject] <AudioDevice>
• Set-DefaultAudioDeviceVolume -Volume <float>
• Get-DefaultAudioDeviceVolume
• Set-DefaultAudioDeviceMute
• Write-DefaultAudioDeviceValue [-StreamValue]

http://www.automatedops.com/projects/windowsaudiodevice-powershell-cmdlet/

[BillZndl]

Yeah, well....
This might be a bit over my head and permissions, don't know.
I'll give it a try if it slows up around here.

Thanks!

Bill

Perhaps a simpler way of going about this, depending on your domain credentials, is to simply use PowerShell... See this thread for the Set-Speaker calls, among other options:

http://stackoverflow.com/questions/21355891/change-audio-level-from-powershell



... One member even wrote his own PowerShell CmdLet, which exposes:

• Get-DefaultAudioDevice
• Get-AudioDeviceList
• Set-DefaultAudioDevice [-Index] <Int>
• Set-DefaultAudioDevice [-Name] <String>
• Set-DefaultAudioDevice [-InputObject] <AudioDevice>
• Set-DefaultAudioDeviceVolume -Volume <float>
• Get-DefaultAudioDeviceVolume
• Set-DefaultAudioDeviceMute
• Write-DefaultAudioDeviceValue [-StreamValue]

http://www.automatedops.com/projects/windowsaudiodevice-powershell-cmdlet/

[dgorsman]

Haha...this could be pretty messed up to do to fellow workers

My primary goal wasn't to "mess" with co-workers but......
There is a guy that uses a ring tone that we all find annoying.
So I thought if I could make a few machines around him occasionally play the same ringtone,
it may help him look for another tone to use.
 
Trouble is, the .mp3's are barely audiable when a machine is on 15%-20%,
which most of the machines are becaus the beeps are much louder at that setting,
so I need to turn up the volume and down again after playing the mp3.

Until somebody has their headphones on and you give them temporary hearing loss.  Stuff like this rarely ends well.

[BlackBox]

... Stuff like this rarely ends well.

This.

[Kerry]

... Stuff like this rarely ends well.

This.

Yep, as in most games a poke in the eye with a stick spoils everyone's fun 

[BillZndl]

Well,
it was kinda fun to see the guy grab for his cell phone when I played his ringtone from my machine with the volume up. 
(about 6 of us in an open room divided with cubicals and music playing so it's not easy to tell where it's coming from).
He'll figure it out if I do it too much, so maybe I'll put it on a timer so it happens when I'm not at my machine or better yet,
when I'm over talking to him.