public void SetVolume(int level)
{
try
{
//Instantiate an Enumerator to find audio devices
NAudio.CoreAudioApi.MMDeviceEnumerator MMDE = new NAudio.CoreAudioApi.MMDeviceEnumerator();
//Get all the devices, no matter what condition or status
NAudio.CoreAudioApi.MMDeviceCollection DevCol = MMDE.EnumerateAudioEndPoints(NAudio.CoreAudioApi.DataFlow.All, NAudio.CoreAudioApi.DeviceState.All);
//Loop through all devices
foreach (NAudio.CoreAudioApi.MMDevice dev in DevCol)
{
try
{
if (dev.State == NAudio.CoreAudioApi.DeviceState.Active)
{
var newVolume = (float)Math.Max(Math.Min(level, 100),0) / (float)100;
//Set at maximum volume
dev.AudioEndpointVolume.MasterVolumeLevelScalar = newVolume;
dev.AudioEndpointVolume.Mute = level == 0;
//Get its audio volume
_log.Info("Volume of " + dev.FriendlyName + " is " + dev.AudioEndpointVolume.MasterVolumeLevelScalar.ToString());
}
else
{
_log.Debug("Ignoring device " + dev.FriendlyName + " with state " + dev.State);
}
}
catch (Exception ex)
{
//Do something with exception when an audio endpoint could not be muted
_log.Warn(dev.FriendlyName + " could not be muted with error " + ex);
}
}
}
catch (Exception ex)
{
//When something happend that prevent us to iterate through the devices
_log.Warn("Could not enumerate devices due to an excepion: " + ex.Message);
}
}
I used the nuget package Naudio successfully with this code:
public void SetVolume(int level)
{
try
{
//Instantiate an Enumerator to find audio devices
NAudio.CoreAudioApi.MMDeviceEnumerator MMDE = new NAudio.CoreAudioApi.MMDeviceEnumerator();
//Get all the devices, no matter what condition or status
NAudio.CoreAudioApi.MMDeviceCollection DevCol = MMDE.EnumerateAudioEndPoints(NAudio.CoreAudioApi.DataFlow.All, NAudio.CoreAudioApi.DeviceState.All);
//Loop through all devices
foreach (NAudio.CoreAudioApi.MMDevice dev in DevCol)
{
try
{
if (dev.State == NAudio.CoreAudioApi.DeviceState.Active)
{
var newVolume = (float)Math.Max(Math.Min(level, 100),0) / (float)100;
//Set at maximum volume
dev.AudioEndpointVolume.MasterVolumeLevelScalar = newVolume;
dev.AudioEndpointVolume.Mute = level == 0;
//Get its audio volume
_log.Info("Volume of " + dev.FriendlyName + " is " + dev.AudioEndpointVolume.MasterVolumeLevelScalar.ToString());
}
else
{
_log.Debug("Ignoring device " + dev.FriendlyName + " with state " + dev.State);
}
}
catch (Exception ex)
{
//Do something with exception when an audio endpoint could not be muted
_log.Warn(dev.FriendlyName + " could not be muted with error " + ex);
}
}
}
catch (Exception ex)
{
//When something happend that prevent us to iterate through the devices
_log.Warn("Could not enumerate devices due to an excepion: " + ex.Message);
}
}
CodeProject has a very good sample here. Note that it relies on COM interop completely (check COM interface like IAudioEndpointVolume and IAudioMeterInformation on MSDN if you are interested in implementation details), and works ONLY for Vista/Win7 and higher.
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我通过以下代码成功使用了 nuget 包 Naudio:
I used the nuget package Naudio successfully with this code:
CodeProject 在此处提供了一个非常好的示例。请注意,它完全依赖于 COM 互操作(检查 COM 接口,如 IAudioEndpointVolume 和 IAudioMeterInformation如果您对实现细节感兴趣,请访问 MSDN),并且仅适用于 Vista/Win7 及更高版本。
CodeProject has a very good sample here. Note that it relies on COM interop completely (check COM interface like IAudioEndpointVolume and IAudioMeterInformation on MSDN if you are interested in implementation details), and works ONLY for Vista/Win7 and higher.