395 lines
14 KiB
C#
395 lines
14 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Text;
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using System.Runtime.InteropServices;
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namespace ryCommon
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{
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/// <summary>
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/// SOURCE CODE FROM THE WEBSITE.
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/// LAST UPDATE:WWW.VJSDN.COMÒ×ѧÂÛ̳,2009/08/03 by Jonny Sun
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/// </summary>
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class SoundControl
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{
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#region declarations
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const int MAXPNAMELEN = 32;
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const int MIXER_SHORT_NAME_CHARS = 16;
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const int MIXER_LONG_NAME_CHARS = 64;
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[Flags]
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enum MIXERLINE_LINEF : uint
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{
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ACTIVE = 0x00000001,
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DISCONNECTED = 0x00008000,
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SOURCE = 0x80000000
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}
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[Flags]
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enum MIXER : uint
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{
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GETLINEINFOF_DESTINATION = 0x00000000,
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GETLINEINFOF_SOURCE = 0x00000001,
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GETLINEINFOF_LINEID = 0x00000002,
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GETLINEINFOF_COMPONENTTYPE = 0x00000003,
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GETLINEINFOF_TARGETTYPE = 0x00000004,
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GETLINEINFOF_QUERYMASK = 0x0000000F,
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GETLINECONTROLSF_ALL = 0x00000000,
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GETLINECONTROLSF_ONEBYID = 0x00000001,
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GETLINECONTROLSF_ONEBYTYPE = 0x00000002,
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GETLINECONTROLSF_QUERYMASK = 0x0000000F,
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GETCONTROLDETAILSF_VALUE = 0x00000000,
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GETCONTROLDETAILSF_LISTTEXT = 0x00000001,
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GETCONTROLDETAILSF_QUERYMASK = 0x0000000F,
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OBJECTF_MIXER = 0x00000000,
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OBJECTF_WAVEOUT = 0x10000000,
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OBJECTF_WAVEIN = 0x20000000,
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OBJECTF_MIDIOUT = 0x30000000,
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OBJECTF_MIDIIN = 0x40000000,
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OBJECTF_AUX = 0x50000000,
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OBJECTF_HANDLE = 0x80000000,
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OBJECTF_HMIXER = OBJECTF_HANDLE | OBJECTF_MIXER,
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OBJECTF_HWAVEOUT = OBJECTF_HANDLE | OBJECTF_WAVEOUT,
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OBJECTF_HWAVEIN = OBJECTF_HANDLE | OBJECTF_WAVEIN,
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OBJECTF_HMIDIOUT = OBJECTF_HANDLE | OBJECTF_MIDIOUT,
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OBJECTF_HMIDIIN = OBJECTF_HANDLE | OBJECTF_MIDIIN
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}
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[Flags]
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enum MIXERCONTROL_CT : uint
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{
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CLASS_MASK = 0xF0000000,
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CLASS_CUSTOM = 0x00000000,
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CLASS_METER = 0x10000000,
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CLASS_SWITCH = 0x20000000,
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CLASS_NUMBER = 0x30000000,
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CLASS_SLIDER = 0x40000000,
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CLASS_FADER = 0x50000000,
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CLASS_TIME = 0x60000000,
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CLASS_LIST = 0x70000000,
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SUBCLASS_MASK = 0x0F000000,
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SC_SWITCH_BOOLEAN = 0x00000000,
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SC_SWITCH_BUTTON = 0x01000000,
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SC_METER_POLLED = 0x00000000,
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SC_TIME_MICROSECS = 0x00000000,
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SC_TIME_MILLISECS = 0x01000000,
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SC_LIST_SINGLE = 0x00000000,
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SC_LIST_MULTIPLE = 0x01000000,
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UNITS_MASK = 0x00FF0000,
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UNITS_CUSTOM = 0x00000000,
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UNITS_BOOLEAN = 0x00010000,
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UNITS_SIGNED = 0x00020000,
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UNITS_UNSIGNED = 0x00030000,
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UNITS_DECIBELS = 0x00040000, /* in 10ths */
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UNITS_PERCENT = 0x00050000, /* in 10ths */
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}
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[Flags]
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public enum MIXERCONTROL_CONTROLTYPE : uint
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{
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CUSTOM = MIXERCONTROL_CT.CLASS_CUSTOM | MIXERCONTROL_CT.UNITS_CUSTOM,
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BOOLEANMETER = MIXERCONTROL_CT.CLASS_METER | MIXERCONTROL_CT.SC_METER_POLLED | MIXERCONTROL_CT.UNITS_BOOLEAN,
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SIGNEDMETER = MIXERCONTROL_CT.CLASS_METER | MIXERCONTROL_CT.SC_METER_POLLED | MIXERCONTROL_CT.UNITS_SIGNED,
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PEAKMETER = SIGNEDMETER + 1,
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UNSIGNEDMETER = MIXERCONTROL_CT.CLASS_METER | MIXERCONTROL_CT.SC_METER_POLLED | MIXERCONTROL_CT.UNITS_UNSIGNED,
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BOOLEAN = MIXERCONTROL_CT.CLASS_SWITCH | MIXERCONTROL_CT.SC_SWITCH_BOOLEAN | MIXERCONTROL_CT.UNITS_BOOLEAN,
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ONOFF = BOOLEAN + 1,
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MUTE = BOOLEAN + 2,
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MONO = BOOLEAN + 3,
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LOUDNESS = BOOLEAN + 4,
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STEREOENH = BOOLEAN + 5,
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BASS_BOOST = BOOLEAN + 0x00002277,
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BUTTON = MIXERCONTROL_CT.CLASS_SWITCH | MIXERCONTROL_CT.SC_SWITCH_BUTTON | MIXERCONTROL_CT.UNITS_BOOLEAN,
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DECIBELS = MIXERCONTROL_CT.CLASS_NUMBER | MIXERCONTROL_CT.UNITS_DECIBELS,
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SIGNED = MIXERCONTROL_CT.CLASS_NUMBER | MIXERCONTROL_CT.UNITS_SIGNED,
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UNSIGNED = MIXERCONTROL_CT.CLASS_NUMBER | MIXERCONTROL_CT.UNITS_UNSIGNED,
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PERCENT = MIXERCONTROL_CT.CLASS_NUMBER | MIXERCONTROL_CT.UNITS_PERCENT,
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SLIDER = MIXERCONTROL_CT.CLASS_SLIDER | MIXERCONTROL_CT.UNITS_SIGNED,
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PAN = SLIDER + 1,
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QSOUNDPAN = SLIDER + 2,
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FADER = MIXERCONTROL_CT.CLASS_FADER | MIXERCONTROL_CT.UNITS_UNSIGNED,
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VOLUME = FADER + 1,
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BASS = FADER + 2,
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TREBLE = FADER + 3,
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EQUALIZER = FADER + 4,
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SINGLESELECT = MIXERCONTROL_CT.CLASS_LIST | MIXERCONTROL_CT.SC_LIST_SINGLE | MIXERCONTROL_CT.UNITS_BOOLEAN,
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MUX = SINGLESELECT + 1,
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MULTIPLESELECT = MIXERCONTROL_CT.CLASS_LIST | MIXERCONTROL_CT.SC_LIST_MULTIPLE | MIXERCONTROL_CT.UNITS_BOOLEAN,
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MIXER = MULTIPLESELECT + 1,
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MICROTIME = MIXERCONTROL_CT.CLASS_TIME | MIXERCONTROL_CT.SC_TIME_MICROSECS | MIXERCONTROL_CT.UNITS_UNSIGNED,
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MILLITIME = MIXERCONTROL_CT.CLASS_TIME | MIXERCONTROL_CT.SC_TIME_MILLISECS | MIXERCONTROL_CT.UNITS_UNSIGNED
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}
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[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
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struct MIXERLINE
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{
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[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
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public struct TargetInfo
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{
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public uint dwType;
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public uint dwDeviceID;
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public ushort wMid;
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public ushort wPid;
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public uint vDriverVersion;
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[MarshalAs(UnmanagedType.ByValTStr, SizeConst = MAXPNAMELEN)]
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public string szPname;
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}
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public uint cbStruct;
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public uint dwDestination;
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public uint dwSource;
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public uint dwLineID;
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public MIXERLINE_LINEF fdwLine;
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public uint dwUser;
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public uint dwComponentType;
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public uint cChannels;
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public uint cConnection;
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public uint cControls;
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[MarshalAs(UnmanagedType.ByValTStr, SizeConst = MIXER_SHORT_NAME_CHARS)]
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public string szShortName;
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[MarshalAs(UnmanagedType.ByValTStr, SizeConst = MIXER_LONG_NAME_CHARS)]
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public string szName;
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public TargetInfo Target;
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}
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public struct MIXERCONTROL
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{
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public int cbStruct;
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public uint dwControlID;
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public MIXERCONTROL_CONTROLTYPE dwControlType;
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public int fdwControl;
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public int cMultipleItems;
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[MarshalAs(UnmanagedType.ByValTStr, SizeConst = MIXER_SHORT_NAME_CHARS)]
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public string szShortName;
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[MarshalAs(UnmanagedType.ByValTStr, SizeConst = MIXER_LONG_NAME_CHARS)]
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public string szName;
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public int lMinimum;
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public int lMaximum;
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[MarshalAs(UnmanagedType.U4, SizeConst = 10)]
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public int reserved;
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}
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[StructLayout(LayoutKind.Explicit)]
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struct MIXERLINECONTROLS
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{
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[FieldOffset(0)]
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public uint cbStruct;
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[FieldOffset(4)]
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public uint dwLineID;
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[FieldOffset(8)]
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public uint dwControlID;
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[FieldOffset(8)] // not a typo! overlaps previous field
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public uint dwControlType;
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[FieldOffset(12)]
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public uint cControls;
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[FieldOffset(16)]
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public uint cbmxctrl;
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[FieldOffset(20)]
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public IntPtr pamxctrl;
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}
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[StructLayout(LayoutKind.Explicit)]
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struct MIXERCONTROLDETAILS
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{
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[FieldOffset(0)]
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public uint cbStruct;
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[FieldOffset(4)]
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public uint dwControlID;
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[FieldOffset(8)]
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public uint cChannels;
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[FieldOffset(12)]
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public IntPtr hwndOwner;
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[FieldOffset(12)] // not a typo!
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public uint cMultipleItems;
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[FieldOffset(16)]
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public uint cbDetails;
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[FieldOffset(20)]
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public IntPtr paDetails;
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}
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[StructLayout(LayoutKind.Sequential)]
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struct VOLUME
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{
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public int left;
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public int right;
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}
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public struct MixerInfo
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{
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public uint volumeCtl;
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public uint muteCtl;
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public int minVolume;
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public int maxVolume;
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}
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[DllImport("WinMM.dll", CharSet = CharSet.Auto)]
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static extern uint mixerGetLineInfo(IntPtr hmxobj, ref MIXERLINE pmxl, MIXER flags);
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[DllImport("WinMM.dll", CharSet = CharSet.Auto)]
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static extern uint mixerGetLineControls(IntPtr hmxobj, ref MIXERLINECONTROLS pmxlc, MIXER flags);
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[DllImport("WinMM.dll", CharSet = CharSet.Auto)]
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static extern uint mixerGetControlDetails(IntPtr hmxobj, ref MIXERCONTROLDETAILS pmxcd, MIXER flags);
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[DllImport("WinMM.dll", CharSet = CharSet.Auto)]
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static extern uint mixerSetControlDetails(IntPtr hmxobj, ref MIXERCONTROLDETAILS pmxcd, MIXER flags);
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#endregion declarations
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#region private methods
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public static MixerInfo GetMixerControls()
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{
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MIXERLINE mxl = new MIXERLINE();
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MIXERLINECONTROLS mlc = new MIXERLINECONTROLS();
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mxl.cbStruct = (uint)Marshal.SizeOf(typeof(MIXERLINE));
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mlc.cbStruct = (uint)Marshal.SizeOf(typeof(MIXERLINECONTROLS));
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mixerGetLineInfo(IntPtr.Zero, ref mxl, MIXER.OBJECTF_MIXER | MIXER.GETLINEINFOF_DESTINATION);
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mlc.dwLineID = mxl.dwLineID;
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mlc.cControls = mxl.cControls;
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mlc.cbmxctrl = (uint)Marshal.SizeOf(typeof(MIXERCONTROL));
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mlc.pamxctrl = Marshal.AllocHGlobal((int)(mlc.cbmxctrl * mlc.cControls));
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mixerGetLineControls(IntPtr.Zero, ref mlc, MIXER.OBJECTF_MIXER | MIXER.GETLINECONTROLSF_ALL);
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MixerInfo rtn = new MixerInfo();
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for (int i = 0; i < mlc.cControls; i++)
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{
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MIXERCONTROL mxc = (MIXERCONTROL)Marshal.PtrToStructure((IntPtr)((int)mlc.pamxctrl + (int)mlc.cbmxctrl * i), typeof(MIXERCONTROL));
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switch (mxc.dwControlType)
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{
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case MIXERCONTROL_CONTROLTYPE.VOLUME:
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rtn.volumeCtl = mxc.dwControlID;
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rtn.minVolume = mxc.lMinimum;
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rtn.maxVolume = mxc.lMaximum;
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break;
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case MIXERCONTROL_CONTROLTYPE.MUTE:
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rtn.muteCtl = mxc.dwControlID;
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break;
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}
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}
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Marshal.FreeHGlobal(mlc.pamxctrl);
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return rtn;
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}
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static VOLUME GetVolume(MixerInfo mi)
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{
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MIXERCONTROLDETAILS mcd = new MIXERCONTROLDETAILS();
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mcd.cbStruct = (uint)Marshal.SizeOf(typeof(MIXERCONTROLDETAILS));
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mcd.dwControlID = mi.volumeCtl;
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mcd.cMultipleItems = 0;
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mcd.cChannels = 2;
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mcd.cbDetails = (uint)Marshal.SizeOf(typeof(VOLUME));
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mcd.paDetails = Marshal.AllocHGlobal((int)mcd.cbDetails);
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mixerGetControlDetails(IntPtr.Zero, ref mcd, MIXER.GETCONTROLDETAILSF_VALUE | MIXER.OBJECTF_MIXER);
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VOLUME rtn = (VOLUME)Marshal.PtrToStructure(mcd.paDetails, typeof(VOLUME));
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Marshal.FreeHGlobal(mcd.paDetails);
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return rtn;
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}
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public static bool IsMuted(MixerInfo mi)
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{
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MIXERCONTROLDETAILS mcd = new MIXERCONTROLDETAILS();
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mcd.cbStruct = (uint)Marshal.SizeOf(typeof(MIXERCONTROLDETAILS));
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mcd.dwControlID = mi.muteCtl;
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mcd.cMultipleItems = 0;
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mcd.cChannels = 1;
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mcd.cbDetails = 4;
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mcd.paDetails = Marshal.AllocHGlobal((int)mcd.cbDetails);
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mixerGetControlDetails(IntPtr.Zero, ref mcd, MIXER.GETCONTROLDETAILSF_VALUE | MIXER.OBJECTF_MIXER);
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int rtn = Marshal.ReadInt32(mcd.paDetails);
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Marshal.FreeHGlobal(mcd.paDetails);
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return rtn != 0;
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}
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static void MuteIt(MixerInfo mi, bool left, bool right)
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{
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VOLUME volume = GetVolume(mi);
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if (!left && !right) // mute off
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{
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volume.left = 65530;
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volume.right = 65530;
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}
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else if (left) //mute left channel
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{
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volume.left = 0;
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volume.right = 65530;
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}
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else if (right) // mute right channel
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{
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volume.left = 65530;
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volume.right = 0;
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}
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SetVolume(mi, volume);
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}
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static void SetVolume(MixerInfo mi, VOLUME volume)
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{
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MIXERCONTROLDETAILS mcd = new MIXERCONTROLDETAILS();
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mcd.cbStruct = (uint)Marshal.SizeOf(typeof(MIXERCONTROLDETAILS));
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mcd.dwControlID = mi.volumeCtl;
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mcd.cMultipleItems = 0;
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mcd.cChannels = 2;
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mcd.cbDetails = (uint)Marshal.SizeOf(typeof(VOLUME));
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mcd.paDetails = Marshal.AllocHGlobal((int)mcd.cbDetails);
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Marshal.StructureToPtr(volume, mcd.paDetails, false);
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mixerSetControlDetails(IntPtr.Zero, ref mcd, MIXER.GETCONTROLDETAILSF_VALUE | MIXER.OBJECTF_MIXER);
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Marshal.FreeHGlobal(mcd.paDetails);
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}
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#endregion private methods
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#region public methods
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/// <summary>
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/// Mutes the left hand channel and transfers audio fully to the right
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/// </summary>
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public void MuteLeftChannel()
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{
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MixerInfo mi = GetMixerControls();
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MuteIt(mi, false, true);
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}
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/// <summary>
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/// Mutes the right hand channel and transfers audio fully to the left
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/// </summary>
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public void MuteRightChannel()
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{
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MixerInfo mi = GetMixerControls();
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MuteIt(mi, true, false);
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}
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public void MuteOff()
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{
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MixerInfo mi = GetMixerControls();
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MuteIt(mi, false, false);
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}
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#endregion public methods
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}
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} |