LookupPrivilegeNameW

// ADVAPI32.dll  (Unicode / -W)
#include <windows.h>

BOOL LookupPrivilegeNameW(
    LPCWSTR lpSystemName,   // optional
    LUID* lpLuid,
    LPWSTR lpName,   // optional
    DWORD* cchName
);

<DllImport("ADVAPI32.dll", CharSet:=CharSet.Unicode, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function LookupPrivilegeNameW(
    <MarshalAs(UnmanagedType.LPWStr)> lpSystemName As String,   ' LPCWSTR optional
    lpLuid As IntPtr,   ' LUID*
    <MarshalAs(UnmanagedType.LPWStr)> lpName As System.Text.StringBuilder,   ' LPWSTR optional, out
    ByRef cchName As UInteger   ' DWORD* in/out
) As Boolean
End Function

' lpSystemName : LPCWSTR optional
' lpLuid : LUID*
' lpName : LPWSTR optional, out
' cchName : DWORD* in/out
Declare PtrSafe Function LookupPrivilegeNameW Lib "advapi32" ( _
    ByVal lpSystemName As LongPtr, _
    ByVal lpLuid As LongPtr, _
    ByVal lpName As LongPtr, _
    ByRef cchName As Long) As Long
' Unicode(W): 文字列は ByVal As LongPtr とし StrPtr(unicodeStr) を渡す
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

LookupPrivilegeNameW = ctypes.windll.advapi32.LookupPrivilegeNameW
LookupPrivilegeNameW.restype = wintypes.BOOL
LookupPrivilegeNameW.argtypes = [
    wintypes.LPCWSTR,  # lpSystemName : LPCWSTR optional
    ctypes.c_void_p,  # lpLuid : LUID*
    wintypes.LPWSTR,  # lpName : LPWSTR optional, out
    ctypes.POINTER(wintypes.DWORD),  # cchName : DWORD* in/out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ADVAPI32.dll')
LookupPrivilegeNameW = Fiddle::Function.new(
  lib['LookupPrivilegeNameW'],
  [
    Fiddle::TYPE_VOIDP,  # lpSystemName : LPCWSTR optional
    Fiddle::TYPE_VOIDP,  # lpLuid : LUID*
    Fiddle::TYPE_VOIDP,  # lpName : LPWSTR optional, out
    Fiddle::TYPE_VOIDP,  # cchName : DWORD* in/out
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "advapi32")]
extern "system" {
    fn LookupPrivilegeNameW(
        lpSystemName: *const u16,  // LPCWSTR optional
        lpLuid: *mut LUID,  // LUID*
        lpName: *mut u16,  // LPWSTR optional, out
        cchName: *mut u32  // DWORD* in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("ADVAPI32.dll", CharSet = CharSet.Unicode, SetLastError = true)]
public static extern bool LookupPrivilegeNameW([MarshalAs(UnmanagedType.LPWStr)] string lpSystemName, IntPtr lpLuid, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder lpName, ref uint cchName);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ADVAPI32_LookupPrivilegeNameW' -Namespace Win32 -PassThru
# $api::LookupPrivilegeNameW(lpSystemName, lpLuid, lpName, cchName)

#uselib "ADVAPI32.dll"
#func global LookupPrivilegeNameW "LookupPrivilegeNameW" wptr, wptr, wptr, wptr
; LookupPrivilegeNameW lpSystemName, varptr(lpLuid), varptr(lpName), varptr(cchName)   ; 戻り値は stat
; lpSystemName : LPCWSTR optional -> "wptr"
; lpLuid : LUID* -> "wptr"
; lpName : LPWSTR optional, out -> "wptr"
; cchName : DWORD* in/out -> "wptr"
; ※HSP3.7は #func のため戻り値はシステム変数 stat に格納されます。

#uselib "ADVAPI32.dll"
#cfunc global LookupPrivilegeNameW "LookupPrivilegeNameW" wstr, var, var, var
; res = LookupPrivilegeNameW(lpSystemName, lpLuid, lpName, cchName)
; lpSystemName : LPCWSTR optional -> "wstr"
; lpLuid : LUID* -> "var"
; lpName : LPWSTR optional, out -> "var"
; cchName : DWORD* in/out -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

; BOOL LookupPrivilegeNameW(LPCWSTR lpSystemName, LUID* lpLuid, LPWSTR lpName, DWORD* cchName)
#uselib "ADVAPI32.dll"
#cfunc global LookupPrivilegeNameW "LookupPrivilegeNameW" wstr, var, var, var
; res = LookupPrivilegeNameW(lpSystemName, lpLuid, lpName, cchName)
; lpSystemName : LPCWSTR optional -> "wstr"
; lpLuid : LUID* -> "var"
; lpName : LPWSTR optional, out -> "var"
; cchName : DWORD* in/out -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	advapi32 = windows.NewLazySystemDLL("ADVAPI32.dll")
	procLookupPrivilegeNameW = advapi32.NewProc("LookupPrivilegeNameW")
)

// lpSystemName (LPCWSTR optional), lpLuid (LUID*), lpName (LPWSTR optional, out), cchName (DWORD* in/out)
r1, _, err := procLookupPrivilegeNameW.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpSystemName))),
	uintptr(lpLuid),
	uintptr(lpName),
	uintptr(cchName),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function LookupPrivilegeNameW(
  lpSystemName: PWideChar;   // LPCWSTR optional
  lpLuid: Pointer;   // LUID*
  lpName: PWideChar;   // LPWSTR optional, out
  cchName: Pointer   // DWORD* in/out
): BOOL; stdcall;
  external 'ADVAPI32.dll' name 'LookupPrivilegeNameW';

result := DllCall("ADVAPI32\LookupPrivilegeNameW"
    , "WStr", lpSystemName   ; LPCWSTR optional
    , "Ptr", lpLuid   ; LUID*
    , "Ptr", lpName   ; LPWSTR optional, out
    , "Ptr", cchName   ; DWORD* in/out
    , "Int")   ; return: BOOL

●LookupPrivilegeNameW(lpSystemName, lpLuid, lpName, cchName) = DLL("ADVAPI32.dll", "bool LookupPrivilegeNameW(char*, void*, char*, void*)")
# 呼び出し: LookupPrivilegeNameW(lpSystemName, lpLuid, lpName, cchName)
# lpSystemName : LPCWSTR optional -> "char*"
# lpLuid : LUID* -> "void*"
# lpName : LPWSTR optional, out -> "char*"
# cchName : DWORD* in/out -> "void*"
# なでしこ1は32bit・ANSI(Shift_JIS)。文字列=char*(ANSI)、ポインタ/ハンドル=void*(4byte)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。