C# Definition:

struct MIXERLINE
{
   public UInt32    cbStruct;
   public UInt32    dwDestination;
   public UInt32    dwSource;
   public UInt32    dwLineID;
   public UInt32    fdwLine;
   public IntPtr    dwUser;
   public UInt32    dwComponentType;
   public UInt32    cChannels;
   public UInt32    cConnections;
   public UInt32    cControls;
   [MarshalAs(UnmanagedType.ByValTStr, SizeConst = MIXER_SHORT_NAME_CHARS)]
   public string    szShortName;
   [MarshalAs(UnmanagedType.ByValTStr, SizeConst = MIXER_LONG_NAME_CHARS)]
   public string    szName;
   public MIXERLINETARGET Target;
}

VB Definition:

Structure MIXERLINE

    Dim cbStruct As UInteger
    Dim dwDestination As UInteger
    Dim dwSource As UInteger
    Dim dwLineID As UInteger
    Dim fdwLine As UInteger
    Dim dwUser As IntPtr
    Dim dwComponentType As UInteger
    Dim cChannels As UInteger
    Dim cConnections As UInteger
    Dim cControls As UInteger
    <MarshalAs(UnmanagedType.ByValTStr, SizeConst:=MIXER_SHORT_NAME_CHARS)> Dim szShortName As String
    <MarshalAs(UnmanagedType.ByValTStr, SizeConst:=MIXER_LONG_NAME_CHARS)> Dim sxName As String
    Dim Target As MIXERLINETARGET

End Structure

User-Defined Field Types:

MIXERLINETARGET

Notes:

None.