SetupDecompressOrCopyFileW

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

DWORD SetupDecompressOrCopyFileW(
    LPCWSTR SourceFileName,
    LPCWSTR TargetFileName,
    FILE_COMPRESSION_TYPE* CompressionType   // optional
);

<DllImport("SETUPAPI.dll", CharSet:=CharSet.Unicode, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function SetupDecompressOrCopyFileW(
    <MarshalAs(UnmanagedType.LPWStr)> SourceFileName As String,   ' LPCWSTR
    <MarshalAs(UnmanagedType.LPWStr)> TargetFileName As String,   ' LPCWSTR
    CompressionType As IntPtr   ' FILE_COMPRESSION_TYPE* optional
) As UInteger
End Function

' SourceFileName : LPCWSTR
' TargetFileName : LPCWSTR
' CompressionType : FILE_COMPRESSION_TYPE* optional
Declare PtrSafe Function SetupDecompressOrCopyFileW Lib "setupapi" ( _
    ByVal SourceFileName As LongPtr, _
    ByVal TargetFileName As LongPtr, _
    ByVal CompressionType As LongPtr) 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

SetupDecompressOrCopyFileW = ctypes.windll.setupapi.SetupDecompressOrCopyFileW
SetupDecompressOrCopyFileW.restype = wintypes.DWORD
SetupDecompressOrCopyFileW.argtypes = [
    wintypes.LPCWSTR,  # SourceFileName : LPCWSTR
    wintypes.LPCWSTR,  # TargetFileName : LPCWSTR
    ctypes.c_void_p,  # CompressionType : FILE_COMPRESSION_TYPE* optional
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('SETUPAPI.dll')
SetupDecompressOrCopyFileW = Fiddle::Function.new(
  lib['SetupDecompressOrCopyFileW'],
  [
    Fiddle::TYPE_VOIDP,  # SourceFileName : LPCWSTR
    Fiddle::TYPE_VOIDP,  # TargetFileName : LPCWSTR
    Fiddle::TYPE_VOIDP,  # CompressionType : FILE_COMPRESSION_TYPE* optional
  ],
  -Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "setupapi")]
extern "system" {
    fn SetupDecompressOrCopyFileW(
        SourceFileName: *const u16,  // LPCWSTR
        TargetFileName: *const u16,  // LPCWSTR
        CompressionType: *mut u32  // FILE_COMPRESSION_TYPE* optional
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("SETUPAPI.dll", CharSet = CharSet.Unicode, SetLastError = true)]
public static extern uint SetupDecompressOrCopyFileW([MarshalAs(UnmanagedType.LPWStr)] string SourceFileName, [MarshalAs(UnmanagedType.LPWStr)] string TargetFileName, IntPtr CompressionType);
"@
$api = Add-Type -MemberDefinition $sig -Name 'SETUPAPI_SetupDecompressOrCopyFileW' -Namespace Win32 -PassThru
# $api::SetupDecompressOrCopyFileW(SourceFileName, TargetFileName, CompressionType)

#uselib "SETUPAPI.dll"
#func global SetupDecompressOrCopyFileW "SetupDecompressOrCopyFileW" wptr, wptr, wptr
; SetupDecompressOrCopyFileW SourceFileName, TargetFileName, CompressionType   ; 戻り値は stat
; SourceFileName : LPCWSTR -> "wptr"
; TargetFileName : LPCWSTR -> "wptr"
; CompressionType : FILE_COMPRESSION_TYPE* optional -> "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 "SETUPAPI.dll"
#cfunc global SetupDecompressOrCopyFileW "SetupDecompressOrCopyFileW" wstr, wstr, int
; res = SetupDecompressOrCopyFileW(SourceFileName, TargetFileName, CompressionType)
; SourceFileName : LPCWSTR -> "wstr"
; TargetFileName : LPCWSTR -> "wstr"
; CompressionType : FILE_COMPRESSION_TYPE* optional -> "int"

; DWORD SetupDecompressOrCopyFileW(LPCWSTR SourceFileName, LPCWSTR TargetFileName, FILE_COMPRESSION_TYPE* CompressionType)
#uselib "SETUPAPI.dll"
#cfunc global SetupDecompressOrCopyFileW "SetupDecompressOrCopyFileW" wstr, wstr, int
; res = SetupDecompressOrCopyFileW(SourceFileName, TargetFileName, CompressionType)
; SourceFileName : LPCWSTR -> "wstr"
; TargetFileName : LPCWSTR -> "wstr"
; CompressionType : FILE_COMPRESSION_TYPE* optional -> "int"

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

var (
	setupapi = windows.NewLazySystemDLL("SETUPAPI.dll")
	procSetupDecompressOrCopyFileW = setupapi.NewProc("SetupDecompressOrCopyFileW")
)

// SourceFileName (LPCWSTR), TargetFileName (LPCWSTR), CompressionType (FILE_COMPRESSION_TYPE* optional)
r1, _, err := procSetupDecompressOrCopyFileW.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(SourceFileName))),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(TargetFileName))),
	uintptr(CompressionType),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function SetupDecompressOrCopyFileW(
  SourceFileName: PWideChar;   // LPCWSTR
  TargetFileName: PWideChar;   // LPCWSTR
  CompressionType: Pointer   // FILE_COMPRESSION_TYPE* optional
): DWORD; stdcall;
  external 'SETUPAPI.dll' name 'SetupDecompressOrCopyFileW';

result := DllCall("SETUPAPI\SetupDecompressOrCopyFileW"
    , "WStr", SourceFileName   ; LPCWSTR
    , "WStr", TargetFileName   ; LPCWSTR
    , "Ptr", CompressionType   ; FILE_COMPRESSION_TYPE* optional
    , "UInt")   ; return: DWORD

●SetupDecompressOrCopyFileW(SourceFileName, TargetFileName, CompressionType) = DLL("SETUPAPI.dll", "dword SetupDecompressOrCopyFileW(char*, char*, void*)")
# 呼び出し: SetupDecompressOrCopyFileW(SourceFileName, TargetFileName, CompressionType)
# SourceFileName : LPCWSTR -> "char*"
# TargetFileName : LPCWSTR -> "char*"
# CompressionType : FILE_COMPRESSION_TYPE* optional -> "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。