C# Constants:

private const int MMSYSERR_NOERROR                            = 0;

private const UInt32 MIXER_OBJECTF_HANDLE                    = 0x80000000;
private const UInt32 MIXER_OBJECTF_MIXER                    = 0x00000000;
private const UInt32 MIXER_OBJECTF_HMIXER                    = MIXER_OBJECTF_HANDLE | MIXER_OBJECTF_MIXER;

private const UInt32 MIXERCONTROL_CT_CLASS_FADER            = 0x50000000;
private const UInt32 MIXERCONTROL_CT_UNITS_UNSIGNED            = 0x00030000;
private const UInt32 MIXERCONTROL_CONTROLTYPE_FADER            = MIXERCONTROL_CT_CLASS_FADER | MIXERCONTROL_CT_UNITS_UNSIGNED;
private const UInt32 MIXERCONTROL_CONTROLTYPE_VOLUME        = MIXERCONTROL_CONTROLTYPE_FADER + 1;

private const UInt32 CALLBACK_WINDOW                        = 0x00010000;
private const UInt32 MIXER_GETLINEINFOF_COMPONENTTYPE        = 0x00000003;
private const UInt32 MIXER_GETLINECONTROLSF_ONEBYTYPE        = 0x00000002;
private const UInt32 MIXER_GETCONTROLDETAILSF_VALUE            = 0x00000000;
private const Int32 MIXER_SHORT_NAME_CHARS                    = 16;
private const Int32 MIXER_LONG_NAME_CHARS                    = 64;
private const Int32 MAXPNAMELEN                                = 32;
private const UInt32 MIXERLINE_COMPONENTTYPE_DST_FIRST        = 0x00000000;
private const UInt32 MIXERLINE_COMPONENTTYPE_DST_SPEAKERS    = MIXERLINE_COMPONENTTYPE_DST_FIRST + 4;
private const UInt32 MIXER_SETCONTROLDETAILSF_VALUE            = 0x00000000;

VB Constants:

TODO

Notes:

None.