C# Signature:

    [StructLayout(LayoutKind.Sequential)]
    struct MIDIOUTCAPS
    {
    public ushort wMid;
    public ushort wPid;
    public uint vDriverVersion;     //MMVERSION
    [MarshalAs(UnmanagedType.ByValTStr, SizeConst= 32)]
    public string szPname;
    public ushort wTechnology;
    public ushort wVoices;
    public ushort wNotes;
    public ushort wChannelMask;
    public uint dwSupport;
    }

    // values for wTechnology field of MIDIOUTCAPS structure
    private const ushort MOD_MIDIPORT = 1;     // output port
    private const ushort MOD_SYNTH = 2;        // generic internal synth
    private const ushort MOD_SQSYNTH = 3;      // square wave internal synth
    private const ushort MOD_FMSYNTH = 4;      // FM internal synth
    private const ushort MOD_MAPPER = 5;       // MIDI mapper
    private const ushort MOD_WAVETABLE = 6;    // hardware wavetable synth
    private const ushort MOD_SWSYNTH = 7;      // software synth

    // flags for dwSupport field of MIDIOUTCAPS structure
    private const int MIDICAPS_VOLUME = 1;      // supports volume control
    private const int MIDICAPS_LRVOLUME = 2;    // separate left-right volume control
    private const int MIDICAPS_CACHE = 4;
    private const int MIDICAPS_STREAM = 8;      // driver supports midiStreamOut directly

User-Defined Types:

None.

Alternative Managed API:

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Notes:

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