LookupPrivilegeNameA

// ADVAPI32.dll  (ANSI / -A)
#include <windows.h>

BOOL LookupPrivilegeNameA(
    LPCSTR lpSystemName,   // optional
    LUID* lpLuid,
    LPSTR lpName,   // optional
    DWORD* cchName
);

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

' lpSystemName : LPCSTR optional
' lpLuid : LUID*
' lpName : LPSTR optional, out
' cchName : DWORD* in/out
Declare PtrSafe Function LookupPrivilegeNameA Lib "advapi32" ( _
    ByVal lpSystemName As String, _
    ByVal lpLuid As LongPtr, _
    ByVal lpName As String, _
    ByRef cchName As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

LookupPrivilegeNameA = ctypes.windll.advapi32.LookupPrivilegeNameA
LookupPrivilegeNameA.restype = wintypes.BOOL
LookupPrivilegeNameA.argtypes = [
    wintypes.LPCSTR,  # lpSystemName : LPCSTR optional
    ctypes.c_void_p,  # lpLuid : LUID*
    wintypes.LPSTR,  # lpName : LPSTR 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')
LookupPrivilegeNameA = Fiddle::Function.new(
  lib['LookupPrivilegeNameA'],
  [
    Fiddle::TYPE_VOIDP,  # lpSystemName : LPCSTR optional
    Fiddle::TYPE_VOIDP,  # lpLuid : LUID*
    Fiddle::TYPE_VOIDP,  # lpName : LPSTR optional, out
    Fiddle::TYPE_VOIDP,  # cchName : DWORD* in/out
  ],
  Fiddle::TYPE_INT)

#[link(name = "advapi32")]
extern "system" {
    fn LookupPrivilegeNameA(
        lpSystemName: *const u8,  // LPCSTR optional
        lpLuid: *mut LUID,  // LUID*
        lpName: *mut u8,  // LPSTR 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.Ansi, SetLastError = true)]
public static extern bool LookupPrivilegeNameA([MarshalAs(UnmanagedType.LPStr)] string lpSystemName, IntPtr lpLuid, [MarshalAs(UnmanagedType.LPStr)] System.Text.StringBuilder lpName, ref uint cchName);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ADVAPI32_LookupPrivilegeNameA' -Namespace Win32 -PassThru
# $api::LookupPrivilegeNameA(lpSystemName, lpLuid, lpName, cchName)

#uselib "ADVAPI32.dll"
#func global LookupPrivilegeNameA "LookupPrivilegeNameA" sptr, sptr, sptr, sptr
; LookupPrivilegeNameA lpSystemName, varptr(lpLuid), varptr(lpName), varptr(cchName)   ; 戻り値は stat
; lpSystemName : LPCSTR optional -> "sptr"
; lpLuid : LUID* -> "sptr"
; lpName : LPSTR optional, out -> "sptr"
; cchName : DWORD* in/out -> "sptr"
; ※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 LookupPrivilegeNameA "LookupPrivilegeNameA" str, var, var, var
; res = LookupPrivilegeNameA(lpSystemName, lpLuid, lpName, cchName)
; lpSystemName : LPCSTR optional -> "str"
; lpLuid : LUID* -> "var"
; lpName : LPSTR 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 LookupPrivilegeNameA(LPCSTR lpSystemName, LUID* lpLuid, LPSTR lpName, DWORD* cchName)
#uselib "ADVAPI32.dll"
#cfunc global LookupPrivilegeNameA "LookupPrivilegeNameA" str, var, var, var
; res = LookupPrivilegeNameA(lpSystemName, lpLuid, lpName, cchName)
; lpSystemName : LPCSTR optional -> "str"
; lpLuid : LUID* -> "var"
; lpName : LPSTR 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")
	procLookupPrivilegeNameA = advapi32.NewProc("LookupPrivilegeNameA")
)

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

function LookupPrivilegeNameA(
  lpSystemName: PAnsiChar;   // LPCSTR optional
  lpLuid: Pointer;   // LUID*
  lpName: PAnsiChar;   // LPSTR optional, out
  cchName: Pointer   // DWORD* in/out
): BOOL; stdcall;
  external 'ADVAPI32.dll' name 'LookupPrivilegeNameA';

result := DllCall("ADVAPI32\LookupPrivilegeNameA"
    , "AStr", lpSystemName   ; LPCSTR optional
    , "Ptr", lpLuid   ; LUID*
    , "Ptr", lpName   ; LPSTR optional, out
    , "Ptr", cchName   ; DWORD* in/out
    , "Int")   ; return: BOOL

●LookupPrivilegeNameA(lpSystemName, lpLuid, lpName, cchName) = DLL("ADVAPI32.dll", "bool LookupPrivilegeNameA(char*, void*, char*, void*)")
# 呼び出し: LookupPrivilegeNameA(lpSystemName, lpLuid, lpName, cchName)
# lpSystemName : LPCSTR optional -> "char*"
# lpLuid : LUID* -> "void*"
# lpName : LPSTR 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)。