public LUID luid;

• luid

• Locally unique identifier (LUID) for the window.
Represents a locally unique identifier ([LUID]) and its attributes.
10/6/2016 7:48:42 PM - -66.68.181.45

        public LUID LUID;

   private static extern uint LsaGetLogonSessionData(IntPtr luid,  out IntPtr ppLogonSessionData);

public struct LUID_AND_ATTRIBUTES {

   public LUID Luid;

Structure LUID_AND_ATTRIBUTES

   Public Luid As LUID

LUID

public struct LUID_AND_ATTRIBUTES {

   public LUID Luid;

Structure LUID_AND_ATTRIBUTES

   Public Luid As LUID

LUID

    LUID_AND_ATTRIBUTES[] Privilege;

LUID_AND_ATTRIBUTES - http://www.pinvoke.net/default.aspx/Structures/LUID_AND_ATTRIBUTES.html

    public LUID LoginID;

    public LUID_AND_ATTRIBUTES [] Privileges;

    public LUID Luid;

   Public TheLuid As LUID

LUID

LUID_AND_ATTRIBUTES

Do NOT define LUID as UInt64! Use the structure LUID consisted of two UInt32 because of memory alignment.

   tp.TheLuid = luid_Restore

    public static PropertyKey PKEY_PNPX_NetworkInterfaceLuid = new PropertyKey(0x656A3BB3, 0xECC0, 0x43FD, 0x84, 0x77, 0x4A, 0xE0, 0x40, 0x4A, 0x96, 0xCD, 0x00003007);   // VT_UI8

        /// Too many local user identifiers (LUIDs) were requested at one time.

        public const int ERROR_TOO_MANY_LUIDS_REQUESTED = 1333;

        /// No more local user identifiers (LUIDs) are available.

        public const int ERROR_LUIDS_EXHAUSTED = 1334;

    ProcessLUIDDeviceMapsEnabled, // q: ULONG

    IntPtr PAuthenticationID,//_LUID AuthenticationID,//pvLogonID, //PLUID

    IntPtr PAuthenticationID,//_LUID AuthenticationID,//pvLogonID, //PLUID

private static extern uint LsaGetLogonSessionData(IntPtr luid, out IntPtr ppLogonSessionData);

private struct LUID

    public LUID LoginID;

  IntPtr luidPtr = IntPtr.Zero;

  LsaEnumerateLogonSessions(out count, out luidPtr);  //gets an array of pointers to LUIDs

  IntPtr iter = luidPtr;      //set the pointer to the start of the array

      iter = (IntPtr)((int)iter + Marshal.SizeOf(typeof(LUID)));  //move the pointer forward

  LsaFreeReturnBuffer(luidPtr);   //free the array of LUIDs

                public static extern bool AllocateLocallyUniqueId([Out] out UInt64 Luid);

LUID

LUID_AND_ATTRIBUTES

    ref TokPriv1Luid newst, int len, IntPtr prev, IntPtr relen);

    ref long pluid);

    internal struct TokPriv1Luid

        public long Luid;

        TokPriv1Luid tp;

        tp.Luid = 0;

        retVal = LookupPrivilegeValue(null, SE_TIME_ZONE_NAMETEXT, ref tp.Luid);

        var locallyUniqueIdentifier = new NativeMethods.LUID();

           TOKEN_PRIVILEGES.Luid = locallyUniqueIdentifier;

      internal static extern bool LookupPrivilegeValue(string lpsystemname, string lpname, [MarshalAs(UnmanagedType.Struct)] ref LUID lpLuid);

      internal struct LUID

     internal LUID Luid;

    Private Structure LUID

    Private Structure LUID_AND_ATTRIBUTES

        Public Luid As LUID

        Public Privileges() As LUID_AND_ATTRIBUTES

     ByRef lpLuid As LUID _

        'Get the LUID that corresponds to the Shutdown privilege, if it exists.

        Dim luid_Shutdown As LUID

        If Not LookupPrivilegeValue(Nothing, SE_SHUTDOWN_NAME, luid_Shutdown) Then

            'Set up a LUID_AND_ATTRIBUTES structure containing the Shutdown privilege, marked as enabled.

            Dim luaAttr As New LUID_AND_ATTRIBUTES

            luaAttr.Luid = luid_Shutdown

            newState.Privileges = New LUID_AND_ATTRIBUTES() {luaAttr}

   IntPtr lpLuid,

LUID luid = new LUID();

luid.LowPart = 30;

luid.HighPart = 0;

int luidNameLen = 0;

IntPtr ptrLuid = Marshal.AllocHGlobal(Marshal.SizeOf(luid));

Marshal.StructureToPtr(luidAttr.Luid, ptrLuid, true);

LookupPrivilegeName(null, ptrLuid, null, ref luidNameLen); // call once to get the name len

sb.EnsureCapacity(luidNameLen + 1);

if (LookupPrivilegeName(null, ptrLuid, sb, ref luidNameLen)) // call again to get the name

   Trace.WriteLine(string.Format("{0} ({1})", luid.LowPart, sb.ToString()));

Marshal.FreeHGlobal(ptrLuid);

    out LUID lpLuid);

   lpName As String, ByRef lpLuid As LUID) As Boolean

LUID

Int64 (or long in C#) could be used instead of LUID.

    public long Luid;

if (!LookupPrivilegeValue(null, SE_SHUTDOWN_NAME, out tkp.Privileges[0].Luid))

    TooManyLuidsRequested = 0xc0000074,

    LuidsExhausted = 0xc0000075,

    public Guid luid;                                                    

        public UInt64 Luid;