GetCompressedFileSizeTransactedW

// KERNEL32.dll  (Unicode / -W)
#include <windows.h>

DWORD GetCompressedFileSizeTransactedW(
    LPCWSTR lpFileName,
    DWORD* lpFileSizeHigh,   // optional
    HANDLE hTransaction
);

<DllImport("KERNEL32.dll", CharSet:=CharSet.Unicode, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function GetCompressedFileSizeTransactedW(
    <MarshalAs(UnmanagedType.LPWStr)> lpFileName As String,   ' LPCWSTR
    lpFileSizeHigh As IntPtr,   ' DWORD* optional, out
    hTransaction As IntPtr   ' HANDLE
) As UInteger
End Function

' lpFileName : LPCWSTR
' lpFileSizeHigh : DWORD* optional, out
' hTransaction : HANDLE
Declare PtrSafe Function GetCompressedFileSizeTransactedW Lib "kernel32" ( _
    ByVal lpFileName As LongPtr, _
    ByVal lpFileSizeHigh As LongPtr, _
    ByVal hTransaction 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

GetCompressedFileSizeTransactedW = ctypes.windll.kernel32.GetCompressedFileSizeTransactedW
GetCompressedFileSizeTransactedW.restype = wintypes.DWORD
GetCompressedFileSizeTransactedW.argtypes = [
    wintypes.LPCWSTR,  # lpFileName : LPCWSTR
    ctypes.POINTER(wintypes.DWORD),  # lpFileSizeHigh : DWORD* optional, out
    wintypes.HANDLE,  # hTransaction : HANDLE
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
GetCompressedFileSizeTransactedW = Fiddle::Function.new(
  lib['GetCompressedFileSizeTransactedW'],
  [
    Fiddle::TYPE_VOIDP,  # lpFileName : LPCWSTR
    Fiddle::TYPE_VOIDP,  # lpFileSizeHigh : DWORD* optional, out
    Fiddle::TYPE_VOIDP,  # hTransaction : HANDLE
  ],
  -Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "kernel32")]
extern "system" {
    fn GetCompressedFileSizeTransactedW(
        lpFileName: *const u16,  // LPCWSTR
        lpFileSizeHigh: *mut u32,  // DWORD* optional, out
        hTransaction: *mut core::ffi::c_void  // HANDLE
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("KERNEL32.dll", CharSet = CharSet.Unicode, SetLastError = true)]
public static extern uint GetCompressedFileSizeTransactedW([MarshalAs(UnmanagedType.LPWStr)] string lpFileName, IntPtr lpFileSizeHigh, IntPtr hTransaction);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_GetCompressedFileSizeTransactedW' -Namespace Win32 -PassThru
# $api::GetCompressedFileSizeTransactedW(lpFileName, lpFileSizeHigh, hTransaction)

#uselib "KERNEL32.dll"
#func global GetCompressedFileSizeTransactedW "GetCompressedFileSizeTransactedW" wptr, wptr, wptr
; GetCompressedFileSizeTransactedW lpFileName, varptr(lpFileSizeHigh), hTransaction   ; 戻り値は stat
; lpFileName : LPCWSTR -> "wptr"
; lpFileSizeHigh : DWORD* optional, out -> "wptr"
; hTransaction : HANDLE -> "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 "KERNEL32.dll"
#cfunc global GetCompressedFileSizeTransactedW "GetCompressedFileSizeTransactedW" wstr, var, sptr
; res = GetCompressedFileSizeTransactedW(lpFileName, lpFileSizeHigh, hTransaction)
; lpFileName : LPCWSTR -> "wstr"
; lpFileSizeHigh : DWORD* optional, out -> "var"
; hTransaction : HANDLE -> "sptr"
; ※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。

; DWORD GetCompressedFileSizeTransactedW(LPCWSTR lpFileName, DWORD* lpFileSizeHigh, HANDLE hTransaction)
#uselib "KERNEL32.dll"
#cfunc global GetCompressedFileSizeTransactedW "GetCompressedFileSizeTransactedW" wstr, var, intptr
; res = GetCompressedFileSizeTransactedW(lpFileName, lpFileSizeHigh, hTransaction)
; lpFileName : LPCWSTR -> "wstr"
; lpFileSizeHigh : DWORD* optional, out -> "var"
; hTransaction : HANDLE -> "intptr"
; ※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 (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	procGetCompressedFileSizeTransactedW = kernel32.NewProc("GetCompressedFileSizeTransactedW")
)

// lpFileName (LPCWSTR), lpFileSizeHigh (DWORD* optional, out), hTransaction (HANDLE)
r1, _, err := procGetCompressedFileSizeTransactedW.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpFileName))),
	uintptr(lpFileSizeHigh),
	uintptr(hTransaction),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function GetCompressedFileSizeTransactedW(
  lpFileName: PWideChar;   // LPCWSTR
  lpFileSizeHigh: Pointer;   // DWORD* optional, out
  hTransaction: THandle   // HANDLE
): DWORD; stdcall;
  external 'KERNEL32.dll' name 'GetCompressedFileSizeTransactedW';

result := DllCall("KERNEL32\GetCompressedFileSizeTransactedW"
    , "WStr", lpFileName   ; LPCWSTR
    , "Ptr", lpFileSizeHigh   ; DWORD* optional, out
    , "Ptr", hTransaction   ; HANDLE
    , "UInt")   ; return: DWORD

●GetCompressedFileSizeTransactedW(lpFileName, lpFileSizeHigh, hTransaction) = DLL("KERNEL32.dll", "dword GetCompressedFileSizeTransactedW(char*, void*, void*)")
# 呼び出し: GetCompressedFileSizeTransactedW(lpFileName, lpFileSizeHigh, hTransaction)
# lpFileName : LPCWSTR -> "char*"
# lpFileSizeHigh : DWORD* optional, out -> "void*"
# hTransaction : HANDLE -> "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。