ExtractFilesW

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

HRESULT ExtractFilesW(
    LPCWSTR pszCabName,
    LPCWSTR pszExpandDir,
    DWORD dwFlags,
    LPCWSTR pszFileList,
    void* lpReserved,
    DWORD dwReserved
);

<DllImport("ADVPACK.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function ExtractFilesW(
    <MarshalAs(UnmanagedType.LPWStr)> pszCabName As String,   ' LPCWSTR
    <MarshalAs(UnmanagedType.LPWStr)> pszExpandDir As String,   ' LPCWSTR
    dwFlags As UInteger,   ' DWORD
    <MarshalAs(UnmanagedType.LPWStr)> pszFileList As String,   ' LPCWSTR
    lpReserved As IntPtr,   ' void* in/out
    dwReserved As UInteger   ' DWORD
) As Integer
End Function

' pszCabName : LPCWSTR
' pszExpandDir : LPCWSTR
' dwFlags : DWORD
' pszFileList : LPCWSTR
' lpReserved : void* in/out
' dwReserved : DWORD
Declare PtrSafe Function ExtractFilesW Lib "advpack" ( _
    ByVal pszCabName As LongPtr, _
    ByVal pszExpandDir As LongPtr, _
    ByVal dwFlags As Long, _
    ByVal pszFileList As LongPtr, _
    ByVal lpReserved As LongPtr, _
    ByVal dwReserved 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

ExtractFilesW = ctypes.windll.advpack.ExtractFilesW
ExtractFilesW.restype = ctypes.c_int
ExtractFilesW.argtypes = [
    wintypes.LPCWSTR,  # pszCabName : LPCWSTR
    wintypes.LPCWSTR,  # pszExpandDir : LPCWSTR
    wintypes.DWORD,  # dwFlags : DWORD
    wintypes.LPCWSTR,  # pszFileList : LPCWSTR
    ctypes.POINTER(None),  # lpReserved : void* in/out
    wintypes.DWORD,  # dwReserved : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ADVPACK.dll')
ExtractFilesW = Fiddle::Function.new(
  lib['ExtractFilesW'],
  [
    Fiddle::TYPE_VOIDP,  # pszCabName : LPCWSTR
    Fiddle::TYPE_VOIDP,  # pszExpandDir : LPCWSTR
    -Fiddle::TYPE_INT,  # dwFlags : DWORD
    Fiddle::TYPE_VOIDP,  # pszFileList : LPCWSTR
    Fiddle::TYPE_VOIDP,  # lpReserved : void* in/out
    -Fiddle::TYPE_INT,  # dwReserved : DWORD
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "advpack")]
extern "system" {
    fn ExtractFilesW(
        pszCabName: *const u16,  // LPCWSTR
        pszExpandDir: *const u16,  // LPCWSTR
        dwFlags: u32,  // DWORD
        pszFileList: *const u16,  // LPCWSTR
        lpReserved: *mut (),  // void* in/out
        dwReserved: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("ADVPACK.dll", CharSet = CharSet.Unicode)]
public static extern int ExtractFilesW([MarshalAs(UnmanagedType.LPWStr)] string pszCabName, [MarshalAs(UnmanagedType.LPWStr)] string pszExpandDir, uint dwFlags, [MarshalAs(UnmanagedType.LPWStr)] string pszFileList, IntPtr lpReserved, uint dwReserved);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ADVPACK_ExtractFilesW' -Namespace Win32 -PassThru
# $api::ExtractFilesW(pszCabName, pszExpandDir, dwFlags, pszFileList, lpReserved, dwReserved)

#uselib "ADVPACK.dll"
#func global ExtractFilesW "ExtractFilesW" wptr, wptr, wptr, wptr, wptr, wptr
; ExtractFilesW pszCabName, pszExpandDir, dwFlags, pszFileList, lpReserved, dwReserved   ; 戻り値は stat
; pszCabName : LPCWSTR -> "wptr"
; pszExpandDir : LPCWSTR -> "wptr"
; dwFlags : DWORD -> "wptr"
; pszFileList : LPCWSTR -> "wptr"
; lpReserved : void* in/out -> "wptr"
; dwReserved : DWORD -> "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 "ADVPACK.dll"
#cfunc global ExtractFilesW "ExtractFilesW" wstr, wstr, int, wstr, sptr, int
; res = ExtractFilesW(pszCabName, pszExpandDir, dwFlags, pszFileList, lpReserved, dwReserved)
; pszCabName : LPCWSTR -> "wstr"
; pszExpandDir : LPCWSTR -> "wstr"
; dwFlags : DWORD -> "int"
; pszFileList : LPCWSTR -> "wstr"
; lpReserved : void* in/out -> "sptr"
; dwReserved : DWORD -> "int"

; HRESULT ExtractFilesW(LPCWSTR pszCabName, LPCWSTR pszExpandDir, DWORD dwFlags, LPCWSTR pszFileList, void* lpReserved, DWORD dwReserved)
#uselib "ADVPACK.dll"
#cfunc global ExtractFilesW "ExtractFilesW" wstr, wstr, int, wstr, intptr, int
; res = ExtractFilesW(pszCabName, pszExpandDir, dwFlags, pszFileList, lpReserved, dwReserved)
; pszCabName : LPCWSTR -> "wstr"
; pszExpandDir : LPCWSTR -> "wstr"
; dwFlags : DWORD -> "int"
; pszFileList : LPCWSTR -> "wstr"
; lpReserved : void* in/out -> "intptr"
; dwReserved : DWORD -> "int"

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

var (
	advpack = windows.NewLazySystemDLL("ADVPACK.dll")
	procExtractFilesW = advpack.NewProc("ExtractFilesW")
)

// pszCabName (LPCWSTR), pszExpandDir (LPCWSTR), dwFlags (DWORD), pszFileList (LPCWSTR), lpReserved (void* in/out), dwReserved (DWORD)
r1, _, err := procExtractFilesW.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pszCabName))),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pszExpandDir))),
	uintptr(dwFlags),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pszFileList))),
	uintptr(lpReserved),
	uintptr(dwReserved),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function ExtractFilesW(
  pszCabName: PWideChar;   // LPCWSTR
  pszExpandDir: PWideChar;   // LPCWSTR
  dwFlags: DWORD;   // DWORD
  pszFileList: PWideChar;   // LPCWSTR
  lpReserved: Pointer;   // void* in/out
  dwReserved: DWORD   // DWORD
): Integer; stdcall;
  external 'ADVPACK.dll' name 'ExtractFilesW';

result := DllCall("ADVPACK\ExtractFilesW"
    , "WStr", pszCabName   ; LPCWSTR
    , "WStr", pszExpandDir   ; LPCWSTR
    , "UInt", dwFlags   ; DWORD
    , "WStr", pszFileList   ; LPCWSTR
    , "Ptr", lpReserved   ; void* in/out
    , "UInt", dwReserved   ; DWORD
    , "Int")   ; return: HRESULT

●ExtractFilesW(pszCabName, pszExpandDir, dwFlags, pszFileList, lpReserved, dwReserved) = DLL("ADVPACK.dll", "int ExtractFilesW(char*, char*, dword, char*, void*, dword)")
# 呼び出し: ExtractFilesW(pszCabName, pszExpandDir, dwFlags, pszFileList, lpReserved, dwReserved)
# pszCabName : LPCWSTR -> "char*"
# pszExpandDir : LPCWSTR -> "char*"
# dwFlags : DWORD -> "dword"
# pszFileList : LPCWSTR -> "char*"
# lpReserved : void* in/out -> "void*"
# dwReserved : DWORD -> "dword"
# 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。