//
// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY
// KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR
// PURPOSE. IT CAN BE DISTRIBUTED FREE OF CHARGE AS LONG AS THIS HEADER
// REMAINS UNCHANGED.
//
// Email: gustavo_franco@hotmail.com
//
// Copyright (C) 2005 Franco, Gustavo
//
using System;
using System.Runtime.InteropServices;
namespace WaveLib.AudioMixer
{
#region Enums
#region Channel
public enum Channel
{
Uniform = 0,
Left = 1,
Right = 2,
Channel_1 = 1,
Channel_2 = 2,
Channel_3 = 3,
Channel_4 = 4
}
#endregion
#region MIXERLINE_LINEFLAG
public enum MIXERLINE_LINEFLAG : uint
{
ACTIVE = 0x00000001,
DISCONNECTED = 0x00008000,
SOURCE = 0x80000000
}
#endregion
#region MIXERCONTROL_CONTROLFLAG
public enum MIXERCONTROL_CONTROLFLAG : uint
{
UNIFORM = 0x00000001,
MULTIPLE = 0x00000002,
DISABLED = 0x80000000
}
#endregion
#region MIXER_GETCONTROLDETAILSFLAG
public enum MIXER_GETCONTROLDETAILSFLAG
{
VALUE = 0x00000000,
LISTTEXT = 0x00000001,
QUERYMASK = 0x0000000F
}
#endregion
#region MIXER_SETCONTROLDETAILSFLAG
public enum MIXER_SETCONTROLDETAILSFLAG : uint
{
VALUE = 0x00000000,
CUSTOM = 0x00000001,
QUERYMASK = 0x0000000F
}
#endregion
#region MIXER_OBJECTFLAG
public enum MIXER_OBJECTFLAG : uint
{
HANDLE = 0x80000000,
MIXER = 0x00000000,
HMIXER = (HANDLE|MIXER),
WAVEOUT = 0x10000000,
HWAVEOUT = (HANDLE|WAVEOUT),
WAVEIN = 0x20000000,
HWAVEIN = (HANDLE|WAVEIN),
MIDIOUT = 0x30000000,
HMIDIOUT = (HANDLE|MIDIOUT),
MIDIIN = 0x40000000,
HMIDIIN = (HANDLE|MIDIIN),
AUX = 0x50000000,
}
#endregion
#region MIXER_GETLINECONTROLSFLAG
public enum MIXER_GETLINECONTROLSFLAG
{
ALL = 0x00000000,
ONEBYID = 0x00000001,
ONEBYTYPE = 0x00000002,
QUERYMASK = 0x0000000F,
}
#endregion
#region MIXER_GETLINEINFO
public enum MIXER_GETLINEINFOF
{
DESTINATION = 0x00000000,
SOURCE = 0x00000001,
LINEID = 0x00000002,
COMPONENTTYPE = 0x00000003,
TARGETTYPE = 0x00000004,
QUERYMASK = 0x0000000F
}
#endregion
#region MIXERCONTROL_CT_CLASS
public enum MIXERCONTROL_CT_CLASS : uint
{
MASK = 0xF0000000,
CUSTOM = 0x00000000,
METER = 0x10000000,
SWITCH = 0x20000000,
NUMBER = 0x30000000,
SLIDER = 0x40000000,
FADER = 0x50000000,
TIME = 0x60000000,
LIST = 0x70000000,
MIXERCONTROL_CT_SUBCLASS_MASK = 0x0F000000,
MIXERCONTROL_CT_SC_SWITCH_BOOLEAN = 0x00000000,
MIXERCONTROL_CT_SC_SWITCH_BUTTON = 0x01000000,
MIXERCONTROL_CT_SC_METER_POLLED = 0x00000000,
MIXERCONTROL_CT_SC_TIME_MICROSECS = 0x00000000,
MIXERCONTROL_CT_SC_TIME_MILLISECS = 0x01000000,
MIXERCONTROL_CT_SC_LIST_SINGLE = 0x00000000,
MIXERCONTROL_CT_SC_LIST_MULTIPLE = 0x01000000,
MIXERCONTROL_CT_UNITS_MASK = 0x00FF0000,
MIXERCONTROL_CT_UNITS_CUSTOM = 0x00000000,
MIXERCONTROL_CT_UNITS_BOOLEAN = 0x00010000,
MIXERCONTROL_CT_UNITS_SIGNED = 0x00020000,
MIXERCONTROL_CT_UNITS_UNSIGNED = 0x00030000,
MIXERCONTROL_CT_UNITS_DECIBELS = 0x00040000, /* in 10ths */
MIXERCONTROL_CT_UNITS_PERCENT = 0x00050000, /* in 10ths */
}
#endregion
#region MIXERCONTROL_CONTROLTYPE
public enum MIXERCONTROL_CONTROLTYPE : uint
{
CUSTOM = (MIXERCONTROL_CT_CLASS.CUSTOM | MIXERCONTROL_CT_CLASS.MIXERCONTROL_CT_UNITS_CUSTOM),
BOOLEANMETER = (MIXERCONTROL_CT_CLASS.METER | MIXERCONTROL_CT_CLASS.MIXERCONTROL_CT_SC_METER_POLLED | MIXERCONTROL_CT_CLASS.MIXERCONTROL_CT_UNITS_BOOLEAN),
SIGNEDMETER = (MIXERCONTROL_CT_CLASS.METER | MIXERCONTROL_CT_CLASS.MIXERCONTROL_CT_SC_METER_POLLED | MIXERCONTROL_CT_CLASS.MIXERCONTROL_CT_UNITS_SIGNED),
PEAKMETER = (SIGNEDMETER + 1),
UNSIGNEDMETER = (MIXERCONTROL_CT_CLASS.METER | MIXERCONTROL_CT_CLASS.MIXERCONTROL_CT_SC_METER_POLLED | MIXERCONTROL_CT_CLASS.MIXERCONTROL_CT_UNITS_UNSIGNED),
BOOLEAN = (MIXERCONTROL_CT_CLASS.SWITCH | MIXERCONTROL_CT_CLASS.MIXERCONTROL_CT_SC_SWITCH_BOOLEAN | MIXERCONTROL_CT_CLASS.MIXERCONTROL_CT_UNITS_BOOLEAN),
ONOFF = (BOOLEAN + 1),
MUTE = (BOOLEAN + 2),
MONO = (BOOLEAN + 3),
LOUDNESS = (BOOLEAN + 4),
STEREOENH = (BOOLEAN + 5),
BASS_BOOST = (BOOLEAN + 0x00002277),
BUTTON = (MIXERCONTROL_CT_CLASS.SWITCH | MIXERCONTROL_CT_CLASS.MIXERCONTROL_CT_SC_SWITCH_BUTTON | MIXERCONTROL_CT_CLASS.MIXERCONTROL_CT_UNITS_BOOLEAN),
DECIBELS = (MIXERCONTROL_CT_CLASS.NUMBER | MIXERCONTROL_CT_CLASS.MIXERCONTROL_CT_UNITS_DECIBELS),
SIGNED = (MIXERCONTROL_CT_CLASS.NUMBER | MIXERCONTROL_CT_CLASS.MIXERCONTROL_CT_UNITS_SIGNED),
UNSIGNED = (MIXERCONTROL_CT_CLASS.NUMBER | MIXERCONTROL_CT_CLASS.MIXERCONTROL_CT_UNITS_UNSIGNED),
PERCENT = (MIXERCONTROL_CT_CLASS.NUMBER | MIXERCONTROL_CT_CLASS.MIXERCONTROL_CT_UNITS_PERCENT),
SLIDER = (MIXERCONTROL_CT_CLASS.SLIDER | MIXERCONTROL_CT_CLASS.MIXERCONTROL_CT_UNITS_SIGNED),
PAN = (SLIDER + 1),
QSOUNDPAN = (SLIDER + 2),
FADER = (MIXERCONTROL_CT_CLASS.FADER | MIXERCONTROL_CT_CLASS.MIXERCONTROL_CT_UNITS_UNSIGNED),
VOLUME = (FADER + 1),
BASS = (FADER + 2),
TREBLE = (FADER + 3),
EQUALIZER = (FADER + 4),
SINGLESELECT = (MIXERCONTROL_CT_CLASS.LIST | MIXERCONTROL_CT_CLASS.MIXERCONTROL_CT_SC_LIST_SINGLE | MIXERCONTROL_CT_CLASS.MIXERCONTROL_CT_UNITS_BOOLEAN),
MUX = (SINGLESELECT + 1),
MULTIPLESELECT = (MIXERCONTROL_CT_CLASS.LIST | MIXERCONTROL_CT_CLASS.MIXERCONTROL_CT_SC_LIST_MULTIPLE | MIXERCONTROL_CT_CLASS.MIXERCONTROL_CT_UNITS_BOOLEAN),
MIXER = (MULTIPLESELECT + 1),
MICROTIME = (MIXERCONTROL_CT_CLASS.TIME | MIXERCONTROL_CT_CLASS.MIXERCONTROL_CT_SC_TIME_MICROSECS | MIXERCONTROL_CT_CLASS.MIXERCONTROL_CT_UNITS_UNSIGNED),
MILLITIME = (MIXERCONTROL_CT_CLASS.TIME | MIXERCONTROL_CT_CLASS.MIXERCONTROL_CT_SC_TIME_MILLISECS | MIXERCONTROL_CT_CLASS.MIXERCONTROL_CT_UNITS_UNSIGNED)
}
#endregion
#region MIXERLINE_COMPONENTTYPE
public enum MIXERLINE_COMPONENTTYPE
{
DST_FIRST = 0x00000000,
DST_UNDEFINED = (DST_FIRST + 0),
DST_DIGITAL = (DST_FIRST + 1),
DST_LINE = (DST_FIRST + 2),
DST_MONITOR = (DST_FIRST + 3),
DST_SPEAKERS = (DST_FIRST + 4),
DST_HEADPHONES = (DST_FIRST + 5),
DST_TELEPHONE = (DST_FIRST + 6),
DST_WAVEIN = (DST_FIRST + 7),
DST_VOICEIN = (DST_FIRST + 8),
DST_LAST = (DST_FIRST + 8),
SRC_FIRST = 0x00001000,
SRC_UNDEFINED = (SRC_FIRST + 0),
SRC_DIGITAL = (SRC_FIRST + 1),
SRC_LINE = (SRC_FIRST + 2),
SRC_MICROPHONE = (SRC_FIRST + 3),
SRC_SYNTHESIZER = (SRC_FIRST + 4),
SRC_COMPACTDISC = (SRC_FIRST + 5),
SRC_TELEPHONE = (SRC_FIRST + 6),
SRC_PCSPEAKER = (SRC_FIRST + 7),
SRC_WAVEOUT = (SRC_FIRST + 8),
SRC_AUXILIARY = (SRC_FIRST + 9),
SRC_ANALOG = (SRC_FIRST + 10),
SRC_LAST = (SRC_FIRST + 10)
}
#endregion
#region MMErrors
public enum MMErrors
{
MMSYSERR_NOERROR = 0, /* no error */
MMSYSERR_ERROR = (MixerNative.MMSYSERR_BASE + 1), /* unspecified error */
MMSYSERR_BADDEVICEID = (MixerNative.MMSYSERR_BASE + 2), /* device ID out of range */
MMSYSERR_NOTENABLED = (MixerNative.MMSYSERR_BASE + 3), /* driver failed enable */
MMSYSERR_ALLOCATED = (MixerNative.MMSYSERR_BASE + 4), /* device already allocated */
MMSYSERR_INVALHANDLE = (MixerNative.MMSYSERR_BASE + 5), /* device handle is invalid */
MMSYSERR_NODRIVER = (MixerNative.MMSYSERR_BASE + 6), /* no device driver present */
MMSYSERR_NOMEM = (MixerNative.MMSYSERR_BASE + 7), /* memory allocation error */
MMSYSERR_NOTSUPPORTED = (MixerNative.MMSYSERR_BASE + 8), /* function isn't supported */
MMSYSERR_BADERRNUM = (MixerNative.MMSYSERR_BASE + 9), /* error value out of range */
MMSYSERR_INVALFLAG = (MixerNative.MMSYSERR_BASE + 10), /* invalid flag passed */
MMSYSERR_INVALPARAM = (MixerNative.MMSYSERR_BASE + 11), /* invalid parameter passed */
MMSYSERR_HANDLEBUSY = (MixerNative.MMSYSERR_BASE + 12), /* handle being used */
MMSYSERR_INVALIDALIAS = (MixerNative.MMSYSERR_BASE + 13), /* specified alias not found */
MMSYSERR_BADDB = (MixerNative.MMSYSERR_BASE + 14), /* bad registry database */
MMSYSERR_KEYNOTFOUND = (MixerNative.MMSYSERR_BASE + 15), /* registry key not found */
MMSYSERR_READERROR = (MixerNative.MMSYSERR_BASE + 16), /* registry read error */
MMSYSERR_WRITEERROR = (MixerNative.MMSYSERR_BASE + 17), /* registry write error */
MMSYSERR_DELETEERROR = (MixerNative.MMSYSERR_BASE + 18), /* registry delete error */
MMSYSERR_VALNOTFOUND = (MixerNative.MMSYSERR_BASE + 19), /* registry value not found */
MMSYSERR_NODRIVERCB = (MixerNative.MMSYSERR_BASE + 20), /* driver does not call DriverCallback */
MMSYSERR_MOREDATA = (MixerNative.MMSYSERR_BASE + 21), /* more data to be returned */
MMSYSERR_LASTERROR = (MixerNative.MMSYSERR_BASE + 21), /* last error in range */
WAVERR_BADFORMAT = (MixerNative.WAVERR_BASE + 0), /* unsupported wave format */
WAVERR_STILLPLAYING = (MixerNative.WAVERR_BASE + 1), /* still something playing */
WAVERR_UNPREPARED = (MixerNative.WAVERR_BASE + 2), /* header not prepared */
WAVERR_SYNC = (MixerNative.WAVERR_BASE + 3), /* device is synchronous */
WAVERR_LASTERROR = (MixerNative.WAVERR_BASE + 3), /* last error in range */
MIXERR_INVALLINE = (MixerNative.MIXERR_BASE + 0),
MIXERR_INVALCONTROL = (MixerNative.MIXERR_BASE + 1),
MIXERR_INVALVALUE = (MixerNative.MIXERR_BASE + 2),
MIXERR_LASTERROR = (MixerNative.MIXERR_BASE + 2)
}
#endregion
#endregion
#region Structs
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode, Pack = 2)]
public struct MIXERCONTROLDETAILS_LISTTEXT
{
public uint dwParam1;
public uint dwParam2;
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = MixerNative.MIXER_LONG_NAME_CHARS)]
public string szName;
}
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode, Pack = 2)]
public struct MIXERCONTROLDETAILS_BOOLEAN
{
uint fValue;
}
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode, Pack = 2)]
public struct MIXERCAPS
{
public short wMid;
public short wPid;
public int vDriverVersion;
[MarshalAs(UnmanagedType.ByValTStr, SizeConst=MixerNative.MAXPNAMELEN)]
public string szPname;
public int fdwSupport;
public int cDestinations;
}
[StructLayout(LayoutKind.Explicit, CharSet = CharSet.Unicode, Pack = 2)]
public struct MIXERCONTROLDETAILS
{
[FieldOffset(0)] public UInt32 cbStruct;
[FieldOffset(4)] public UInt32 dwControlID;
[FieldOffset(8)] public UInt32 cChannels;
// Union start
[FieldOffset(12)] public IntPtr hwndOwner;
[FieldOffset(12)] public UInt32 cMultipleItems;
// Union end
[FieldOffset(16)] public UInt32 cbDetails;
[FieldOffset(20)] public IntPtr paDetails;
}
[StructLayout(LayoutKind.Explicit, CharSet = CharSet.Unicode, Pack = 2)]
public struct MIXERCONTROLDETAILS64
{
[FieldOffset(0)] public UInt32 cbStruct;
[FieldOffset(4)] public UInt32 dwControlID;
[FieldOffset(8)] public UInt32 cChannels;
// Union start
[FieldOffset(12)] public IntPtr hwndOwner;
[FieldOffset(12)] public UInt32 cMultipleItems;
// Union end
[FieldOffset(20)] public UInt32 cbDetails;
[FieldOffset(24)] public IntPtr paDetails;
}
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct MIXERCONTROLDETAILS_UNSIGNED
{
public uint dwValue;
}
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct MIXERCONTROLDETAILS_SIGNED
{
public int value;
}
[StructLayout(LayoutKind.Explicit, CharSet = CharSet.Unicode)]
public struct MIXERCONTROL_BOUNDS
{
[FieldOffset(0)] public int lMinimum;
[FieldOffset(4)] public int lMaximum;
[FieldOffset(0)] public uint dwMinimum;
[FieldOffset(4)] public uint dwMaximum;
[FieldOffset(0)] public uint dwReserved1;
[FieldOffset(4)] public uint dwReserved2;
[FieldOffset(8)] public uint dwReserved3;
[FieldOffset(12)] public uint dwReserved4;
[FieldOffset(16)] public uint dwReserved5;
[FieldOffset(20)] public uint dwReserved6;
}
[StructLayout(LayoutKind.Explicit, CharSet = CharSet.Unicode)]
public struct MIXERCONTROL_METRICS
{
[FieldOffset(0)] public uint cSteps;
[FieldOffset(0)] public uint cbCustomData;
[FieldOffset(0)] public uint dwReserved1;
[FieldOffset(4)] public uint dwReserved2;
[FieldOffset(8)] public uint dwReserved3;
[FieldOffset(12)] public uint dwReserved4;
[FieldOffset(16)] public uint dwReserved5;
[FieldOffset(20)] public uint dwReserved6;
}
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode, Pack=2)]
public struct MIXERCONTROL
{
public UInt32 cbStruct;
public UInt32 dwControlID;
public UInt32 dwControlType;
public UInt32 fdwControl;
public UInt32 cMultipleItems;
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = MixerNative.MIXER_SHORT_NAME_CHARS)]
public string szShortName;
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = MixerNative.MIXER_LONG_NAME_CHARS)]
public string szName;
public MIXERCONTROL_BOUNDS Bounds;
public MIXERCONTROL_METRICS Metrics;
}
[StructLayout(LayoutKind.Explicit, CharSet = CharSet.Unicode, Pack = 1)]
public struct MIXERLINECONTROLS
{
[FieldOffset(0)]
public UInt32 cbStruct;
[FieldOffset(4)]
public UInt32 dwLineID;
// Union start
[FieldOffset(8)]
public UInt32 dwControlID;
[FieldOffset(8)]
public MIXERCONTROL_CONTROLTYPE dwControlType;
// Union end
[FieldOffset(12)]
public UInt32 cControls;
[FieldOffset(16)]
public UInt32 cbmxctrl;
[FieldOffset(20)]
public IntPtr pamxctrl;
}
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode, Pack = 2)]
public struct MIXERLINETARGET
{
public uint dwType;
public uint dwDeviceID;
public ushort wMid;
public ushort wPid;
public uint vDriverVersion;
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = MixerNative.MAXPNAMELEN)]
public string szPname;
}
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode, Pack = 2)]
internal struct MIXERLINE
{
public UInt32 cbStruct;
public UInt32 dwDestination;
public UInt32 dwSource;
public UInt32 dwLineID;
public UInt32 fdwLine;
public IntPtr dwUser;
public MIXERLINE_COMPONENTTYPE dwComponentType;
public UInt32 cChannels;
public UInt32 cConnections;
public UInt32 cControls;
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = MixerNative.MIXER_SHORT_NAME_CHARS)]
public string szShortName;
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = MixerNative.MIXER_LONG_NAME_CHARS)]
public string szName;
public MIXERLINETARGET Target;
}
#endregion
[Author("Gustavo Franco")]
public class MixerNative
{
#region Constants
public const int MMSYSERR_BASE = 0;
public const int WAVERR_BASE = 32;
public const int MIXER_SHORT_NAME_CHARS = 16;
public const int MIXER_LONG_NAME_CHARS = 64;
public const int MAXPNAMELEN = 32; /* max product name length (including NULL) */
public const int MIXERR_BASE = 1024;
public const int CALLBACK_WINDOW = 0x00010000; /* dwCallback is a HWND */
public const int MM_MIXM_LINE_CHANGE = 0x3D0; /* mixer line change notify */
public const int MM_MIXM_CONTROL_CHANGE = 0x3D1;
#endregion
#region User32.dll functions
[DllImport("user32.dll", CharSet=CharSet.Auto)]
public static extern int SendMessage(IntPtr hWnd, int msg, uint wParam, uint lParam);
#endregion
#region Winmm.dll functions
[DllImport("winmm.dll", CharSet = CharSet.Unicode)]
public static extern int mixerOpen(out IntPtr phmx, int pMxId, IntPtr dwCallback, IntPtr dwInstance, uint fdwOpen);
[DllImport("winmm.dll", CharSet = CharSet.Unicode)]
public static extern int mixerOpen(out IntPtr phmx, IntPtr pMxId, IntPtr dwCallback, IntPtr dwInstance, MIXER_OBJECTFLAG fdwOpen);
[DllImport("winmm.dll", CharSet = CharSet.Unicode)]
public static extern int mixerOpen(out IntPtr phmx, IntPtr pMxId, IntPtr dwCallback, IntPtr dwInstance, uint fdwOpen);
[DllImport("winmm.dll", CharSet=CharSet.Unicode)]
internal static extern int mixerGetLineInfo(IntPtr hmxobj,ref MIXERLINE pmxl, MIXER_GETLINEINFOF fdwInfo);
[DllImport("winmm.dll", CharSet = CharSet.Unicode)]
public static extern int mixerClose(IntPtr hmx);
[DllImport("winmm.dll", CharSet = CharSet.Unicode)]
public static extern int mixerGetLineControls(IntPtr hmxobj, ref MIXERLINECONTROLS pmxlc, MIXER_GETLINECONTROLSFLAG fdwControls);
[DllImport("winmm.dll", CharSet = CharSet.Unicode)]
public static extern int mixerGetControlDetails(IntPtr hmxobj,ref MIXERCONTROLDETAILS64 pmxcd, MIXER_SETCONTROLDETAILSFLAG fdwDetailsmixer);
[DllImport("winmm.dll", CharSet = CharSet.Unicode)]
public static extern int mixerGetControlDetails(IntPtr hmxobj,ref MIXERCONTROLDETAILS pmxcd, MIXER_SETCONTROLDETAILSFLAG fdwDetailsmixer);
[DllImport("winmm.dll", CharSet = CharSet.Unicode)]
public static extern int mixerGetControlDetails(IntPtr hmxobj,ref MIXERCONTROLDETAILS64 pmxcd, MIXER_GETCONTROLDETAILSFLAG fdwDetailsmixer);
[DllImport("winmm.dll", CharSet = CharSet.Unicode)]
public static extern int mixerGetControlDetails(IntPtr hmxobj,ref MIXERCONTROLDETAILS pmxcd, MIXER_GETCONTROLDETAILSFLAG fdwDetailsmixer);
[DllImport("winmm.dll", CharSet = CharSet.Unicode)]
public static extern int mixerGetControlDetails(IntPtr hmxobj,ref MIXERCONTROLDETAILS64 pmxcd, uint fdwDetailsmixer);
[DllImport("winmm.dll", CharSet = CharSet.Unicode)]
public static extern int mixerGetControlDetails(IntPtr hmxobj,ref MIXERCONTROLDETAILS pmxcd, uint fdwDetailsmixer);
[DllImport("winmm.dll", CharSet = CharSet.Unicode)]
public static extern int mixerSetControlDetails(IntPtr hmxobj, ref MIXERCONTROLDETAILS64 pmxcd, MIXER_SETCONTROLDETAILSFLAG fdwDetails);
[DllImport("winmm.dll", CharSet = CharSet.Unicode)]
public static extern int mixerSetControlDetails(IntPtr hmxobj, ref MIXERCONTROLDETAILS pmxcd, MIXER_SETCONTROLDETAILSFLAG fdwDetails);
[DllImport("winmm.dll", CharSet = CharSet.Unicode)]
public static extern int mixerGetID(IntPtr hmxobj, ref int mxId, MIXER_OBJECTFLAG fdwId);
[DllImport("winmm.dll", CharSet = CharSet.Unicode)]
public static extern int mixerGetDevCaps(int uMxId, ref MIXERCAPS pmxcaps, int cbmxcaps);
[DllImport("winmm.dll", SetLastError = true, CharSet = CharSet.Unicode)]
public static extern int mixerGetNumDevs();
#endregion
#region Constructors
private MixerNative()
{
}
#endregion
}
}
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