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.