public struct MIXERLINECONTROLS

     private UInt32 cbStruct;       /* size in bytes of MIXERLINECONTROLS */

     /// <summary>size in bytes of MIXERLINECONTROLS</summary>

    Public Structure MIXERLINECONTROLS

    Private cbStruct As UInt32       '/* size in bytes of MIXERLINECONTROLS */

    '/// <summary>size in bytes of MIXERLINECONTROLS</summary>

   ref MIXERLINECONTROLS pmxlc, UInt32 fdwControls);

   ByRef pmxlc As MIXERLINECONTROLS, fdwControls As Integer) As Integer

MIXERLINECONTROLS

private static extern Int32 mixerGetLineControls(IntPtr hmxobj, ref MIXERLINECONTROLS pmxlc, uint fdwControls);

public static Int32 mixerGetLineControls(IntPtr hmxobj, ref MIXERLINECONTROLS pmxlc, MIXER_OBJECTF mixerFlags, MIXER_GETLINECONTROLSF controlsFlags)