/// <summary>
/// Sets the volume level for one channel in the audio stream.
/// </summary>
/// <param name="index">The 0-based index into the channels to adjust the volume of.</param>
/// <param name="level">The volume level between 0.0 and 1.0 for this channel of the audio stream.</param>
public void SetChannelVolume(int index, float level)
{
CheckChannelIndex(index, nameof(index));
if (level < 0.0f)
{
throw new ArgumentOutOfRangeException(nameof(level), "Volume must be between 0.0 and 1.0");
}
if (level > 1.0f)
{
throw new ArgumentOutOfRangeException(nameof(level), "Volume must be between 0.0 and 1.0");
}
Marshal.ThrowExceptionForHR(audioStreamVolumeInterface.SetChannelVolume(unchecked ((uint)index), level));
}
/// <summary>
/// get / set channel volume
/// </summary>
/// <param name="index">channel index</param>
public float this[int index]
{
get
{
float level;
int hr = _RealVolume.GetChannelVolume((uint)index, out level);
Marshal.ThrowExceptionForHR(hr);
return(level);
}
set
{
int hr = _RealVolume.SetChannelVolume((uint)index, value);
Marshal.ThrowExceptionForHR(hr);
}
}
