/// <summary>
/// Gets all the mixer controls
/// </summary>
/// <param name="mixerHandle">Mixer Handle</param>
/// <param name="mixerLine">Mixer Line</param>
/// <param name="mixerHandleType">Mixer Handle Type</param>
/// <returns></returns>
public static IList<MixerControl> GetMixerControls(IntPtr mixerHandle, MixerLine mixerLine,
MixerFlags mixerHandleType)
{
var controls = new List<MixerControl>();
if (mixerLine.ControlsCount > 0)
{
int mixerControlSize = Marshal.SizeOf(typeof (MixerInterop.MIXERCONTROL));
var mlc = new MixerInterop.MIXERLINECONTROLS();
IntPtr pmc = Marshal.AllocHGlobal(mixerControlSize * mixerLine.ControlsCount);
mlc.cbStruct = Marshal.SizeOf(mlc);
mlc.dwLineID = mixerLine.LineId;
mlc.cControls = mixerLine.ControlsCount;
mlc.pamxctrl = pmc;
mlc.cbmxctrl = Marshal.SizeOf(typeof(MixerInterop.MIXERCONTROL));
try
{
MmResult err = MixerInterop.mixerGetLineControls(mixerHandle, ref mlc, MixerFlags.All | mixerHandleType);
if (err != MmResult.NoError)
{
throw new MmException(err, "mixerGetLineControls");
}
for (int i = 0; i < mlc.cControls; i++)
{
Int64 address = pmc.ToInt64() + mixerControlSize * i;
var mc = (MixerInterop.MIXERCONTROL)
Marshal.PtrToStructure((IntPtr)address, typeof(MixerInterop.MIXERCONTROL));
var mixerControl = GetMixerControl(mixerHandle, mixerLine.LineId, mc.dwControlID, mixerLine.Channels,
mixerHandleType);
controls.Add(mixerControl);
}
}
finally
{
Marshal.FreeHGlobal(pmc);
}
}
return controls;
}
/// <summary>
/// Gets all the mixer controls
/// </summary>
/// <param name="mixerHandle">Mixer Handle</param>
/// <param name="mixerLine">Mixer Line</param>
/// <param name="mixerHandleType">Mixer Handle Type</param>
/// <returns></returns>
public static IList <MixerControl> GetMixerControls(IntPtr mixerHandle, MixerLine mixerLine,
MixerFlags mixerHandleType)
{
var controls = new List <MixerControl>();
if (mixerLine.ControlsCount > 0)
{
int mixerControlSize = Marshal.SizeOf(typeof(MixerInterop.MIXERCONTROL));
var mlc = new MixerInterop.MIXERLINECONTROLS();
IntPtr pmc = Marshal.AllocHGlobal(mixerControlSize * mixerLine.ControlsCount);
mlc.cbStruct = Marshal.SizeOf(mlc);
mlc.dwLineID = mixerLine.LineId;
mlc.cControls = mixerLine.ControlsCount;
mlc.pamxctrl = pmc;
mlc.cbmxctrl = Marshal.SizeOf(typeof(MixerInterop.MIXERCONTROL));
try
{
MmResult err = MixerInterop.mixerGetLineControls(mixerHandle, ref mlc, MixerFlags.All | mixerHandleType);
if (err != MmResult.NoError)
{
throw new MmException(err, "mixerGetLineControls");
}
for (int i = 0; i < mlc.cControls; i++)
{
Int64 address = pmc.ToInt64() + mixerControlSize * i;
var mc = (MixerInterop.MIXERCONTROL)
Marshal.PtrToStructure((IntPtr)address, typeof(MixerInterop.MIXERCONTROL));
var mixerControl = GetMixerControl(mixerHandle, mixerLine.LineId, mc.dwControlID, mixerLine.Channels,
mixerHandleType);
controls.Add(mixerControl);
}
}
finally
{
Marshal.FreeHGlobal(pmc);
}
}
return(controls);
}
/// <summary>
/// Microphone Level
/// </summary>
public MixerLine GetMixerLine()
{
// TODO use mixerGetID instead to see if this helps with XP
MixerLine mixerLine;
if (waveInHandle != IntPtr.Zero)
{
mixerLine = new MixerLine(this.waveInHandle, 0, MixerFlags.WaveInHandle);
}
else
{
mixerLine = new MixerLine((IntPtr)DeviceNumber, 0, MixerFlags.WaveIn);
}
return mixerLine;
}
