C# Definition:

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

User-Defined Field Types:

None.

Notes:

None.