OpenProcessToken

// ADVAPI32.dll
#include <windows.h>

BOOL OpenProcessToken(
    HANDLE ProcessHandle,
    TOKEN_ACCESS_MASK DesiredAccess,
    HANDLE* TokenHandle
);

<DllImport("ADVAPI32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function OpenProcessToken(
    ProcessHandle As IntPtr,   ' HANDLE
    DesiredAccess As UInteger,   ' TOKEN_ACCESS_MASK
    TokenHandle As IntPtr   ' HANDLE* out
) As Boolean
End Function

' ProcessHandle : HANDLE
' DesiredAccess : TOKEN_ACCESS_MASK
' TokenHandle : HANDLE* out
Declare PtrSafe Function OpenProcessToken Lib "advapi32" ( _
    ByVal ProcessHandle As LongPtr, _
    ByVal DesiredAccess As Long, _
    ByVal TokenHandle As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

OpenProcessToken = ctypes.windll.advapi32.OpenProcessToken
OpenProcessToken.restype = wintypes.BOOL
OpenProcessToken.argtypes = [
    wintypes.HANDLE,  # ProcessHandle : HANDLE
    wintypes.DWORD,  # DesiredAccess : TOKEN_ACCESS_MASK
    ctypes.c_void_p,  # TokenHandle : HANDLE* out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ADVAPI32.dll')
OpenProcessToken = Fiddle::Function.new(
  lib['OpenProcessToken'],
  [
    Fiddle::TYPE_VOIDP,  # ProcessHandle : HANDLE
    -Fiddle::TYPE_INT,  # DesiredAccess : TOKEN_ACCESS_MASK
    Fiddle::TYPE_VOIDP,  # TokenHandle : HANDLE* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "advapi32")]
extern "system" {
    fn OpenProcessToken(
        ProcessHandle: *mut core::ffi::c_void,  // HANDLE
        DesiredAccess: u32,  // TOKEN_ACCESS_MASK
        TokenHandle: *mut *mut core::ffi::c_void  // HANDLE* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("ADVAPI32.dll", SetLastError = true)]
public static extern bool OpenProcessToken(IntPtr ProcessHandle, uint DesiredAccess, IntPtr TokenHandle);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ADVAPI32_OpenProcessToken' -Namespace Win32 -PassThru
# $api::OpenProcessToken(ProcessHandle, DesiredAccess, TokenHandle)

#uselib "ADVAPI32.dll"
#func global OpenProcessToken "OpenProcessToken" sptr, sptr, sptr
; OpenProcessToken ProcessHandle, DesiredAccess, TokenHandle   ; 戻り値は stat
; ProcessHandle : HANDLE -> "sptr"
; DesiredAccess : TOKEN_ACCESS_MASK -> "sptr"
; TokenHandle : HANDLE* 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 OpenProcessToken "OpenProcessToken" sptr, int, sptr
; res = OpenProcessToken(ProcessHandle, DesiredAccess, TokenHandle)
; ProcessHandle : HANDLE -> "sptr"
; DesiredAccess : TOKEN_ACCESS_MASK -> "int"
; TokenHandle : HANDLE* out -> "sptr"

; BOOL OpenProcessToken(HANDLE ProcessHandle, TOKEN_ACCESS_MASK DesiredAccess, HANDLE* TokenHandle)
#uselib "ADVAPI32.dll"
#cfunc global OpenProcessToken "OpenProcessToken" intptr, int, intptr
; res = OpenProcessToken(ProcessHandle, DesiredAccess, TokenHandle)
; ProcessHandle : HANDLE -> "intptr"
; DesiredAccess : TOKEN_ACCESS_MASK -> "int"
; TokenHandle : HANDLE* out -> "intptr"

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

var (
	advapi32 = windows.NewLazySystemDLL("ADVAPI32.dll")
	procOpenProcessToken = advapi32.NewProc("OpenProcessToken")
)

// ProcessHandle (HANDLE), DesiredAccess (TOKEN_ACCESS_MASK), TokenHandle (HANDLE* out)
r1, _, err := procOpenProcessToken.Call(
	uintptr(ProcessHandle),
	uintptr(DesiredAccess),
	uintptr(TokenHandle),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function OpenProcessToken(
  ProcessHandle: THandle;   // HANDLE
  DesiredAccess: DWORD;   // TOKEN_ACCESS_MASK
  TokenHandle: Pointer   // HANDLE* out
): BOOL; stdcall;
  external 'ADVAPI32.dll' name 'OpenProcessToken';

result := DllCall("ADVAPI32\OpenProcessToken"
    , "Ptr", ProcessHandle   ; HANDLE
    , "UInt", DesiredAccess   ; TOKEN_ACCESS_MASK
    , "Ptr", TokenHandle   ; HANDLE* out
    , "Int")   ; return: BOOL

●OpenProcessToken(ProcessHandle, DesiredAccess, TokenHandle) = DLL("ADVAPI32.dll", "bool OpenProcessToken(void*, dword, void*)")
# 呼び出し: OpenProcessToken(ProcessHandle, DesiredAccess, TokenHandle)
# ProcessHandle : HANDLE -> "void*"
# DesiredAccess : TOKEN_ACCESS_MASK -> "dword"
# TokenHandle : HANDLE* 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)。