GetFileVersionInfoSizeExW

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

DWORD GetFileVersionInfoSizeExW(
    GET_FILE_VERSION_INFO_FLAGS dwFlags,
    LPCWSTR lpwstrFilename,
    DWORD* lpdwHandle
);

<DllImport("VERSION.dll", CharSet:=CharSet.Unicode, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function GetFileVersionInfoSizeExW(
    dwFlags As UInteger,   ' GET_FILE_VERSION_INFO_FLAGS
    <MarshalAs(UnmanagedType.LPWStr)> lpwstrFilename As String,   ' LPCWSTR
    <Out> ByRef lpdwHandle As UInteger   ' DWORD* out
) As UInteger
End Function

' dwFlags : GET_FILE_VERSION_INFO_FLAGS
' lpwstrFilename : LPCWSTR
' lpdwHandle : DWORD* out
Declare PtrSafe Function GetFileVersionInfoSizeExW Lib "version" ( _
    ByVal dwFlags As Long, _
    ByVal lpwstrFilename As LongPtr, _
    ByRef lpdwHandle 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

GetFileVersionInfoSizeExW = ctypes.windll.version.GetFileVersionInfoSizeExW
GetFileVersionInfoSizeExW.restype = wintypes.DWORD
GetFileVersionInfoSizeExW.argtypes = [
    wintypes.DWORD,  # dwFlags : GET_FILE_VERSION_INFO_FLAGS
    wintypes.LPCWSTR,  # lpwstrFilename : LPCWSTR
    ctypes.POINTER(wintypes.DWORD),  # lpdwHandle : DWORD* out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('VERSION.dll')
GetFileVersionInfoSizeExW = Fiddle::Function.new(
  lib['GetFileVersionInfoSizeExW'],
  [
    -Fiddle::TYPE_INT,  # dwFlags : GET_FILE_VERSION_INFO_FLAGS
    Fiddle::TYPE_VOIDP,  # lpwstrFilename : LPCWSTR
    Fiddle::TYPE_VOIDP,  # lpdwHandle : DWORD* out
  ],
  -Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "version")]
extern "system" {
    fn GetFileVersionInfoSizeExW(
        dwFlags: u32,  // GET_FILE_VERSION_INFO_FLAGS
        lpwstrFilename: *const u16,  // LPCWSTR
        lpdwHandle: *mut u32  // DWORD* out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("VERSION.dll", CharSet = CharSet.Unicode, SetLastError = true)]
public static extern uint GetFileVersionInfoSizeExW(uint dwFlags, [MarshalAs(UnmanagedType.LPWStr)] string lpwstrFilename, out uint lpdwHandle);
"@
$api = Add-Type -MemberDefinition $sig -Name 'VERSION_GetFileVersionInfoSizeExW' -Namespace Win32 -PassThru
# $api::GetFileVersionInfoSizeExW(dwFlags, lpwstrFilename, lpdwHandle)

#uselib "VERSION.dll"
#func global GetFileVersionInfoSizeExW "GetFileVersionInfoSizeExW" wptr, wptr, wptr
; GetFileVersionInfoSizeExW dwFlags, lpwstrFilename, varptr(lpdwHandle)   ; 戻り値は stat
; dwFlags : GET_FILE_VERSION_INFO_FLAGS -> "wptr"
; lpwstrFilename : LPCWSTR -> "wptr"
; lpdwHandle : DWORD* out -> "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 "VERSION.dll"
#cfunc global GetFileVersionInfoSizeExW "GetFileVersionInfoSizeExW" int, wstr, var
; res = GetFileVersionInfoSizeExW(dwFlags, lpwstrFilename, lpdwHandle)
; dwFlags : GET_FILE_VERSION_INFO_FLAGS -> "int"
; lpwstrFilename : LPCWSTR -> "wstr"
; lpdwHandle : DWORD* 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。

; DWORD GetFileVersionInfoSizeExW(GET_FILE_VERSION_INFO_FLAGS dwFlags, LPCWSTR lpwstrFilename, DWORD* lpdwHandle)
#uselib "VERSION.dll"
#cfunc global GetFileVersionInfoSizeExW "GetFileVersionInfoSizeExW" int, wstr, var
; res = GetFileVersionInfoSizeExW(dwFlags, lpwstrFilename, lpdwHandle)
; dwFlags : GET_FILE_VERSION_INFO_FLAGS -> "int"
; lpwstrFilename : LPCWSTR -> "wstr"
; lpdwHandle : DWORD* 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 (
	version = windows.NewLazySystemDLL("VERSION.dll")
	procGetFileVersionInfoSizeExW = version.NewProc("GetFileVersionInfoSizeExW")
)

// dwFlags (GET_FILE_VERSION_INFO_FLAGS), lpwstrFilename (LPCWSTR), lpdwHandle (DWORD* out)
r1, _, err := procGetFileVersionInfoSizeExW.Call(
	uintptr(dwFlags),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpwstrFilename))),
	uintptr(lpdwHandle),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function GetFileVersionInfoSizeExW(
  dwFlags: DWORD;   // GET_FILE_VERSION_INFO_FLAGS
  lpwstrFilename: PWideChar;   // LPCWSTR
  lpdwHandle: Pointer   // DWORD* out
): DWORD; stdcall;
  external 'VERSION.dll' name 'GetFileVersionInfoSizeExW';

result := DllCall("VERSION\GetFileVersionInfoSizeExW"
    , "UInt", dwFlags   ; GET_FILE_VERSION_INFO_FLAGS
    , "WStr", lpwstrFilename   ; LPCWSTR
    , "Ptr", lpdwHandle   ; DWORD* out
    , "UInt")   ; return: DWORD

●GetFileVersionInfoSizeExW(dwFlags, lpwstrFilename, lpdwHandle) = DLL("VERSION.dll", "dword GetFileVersionInfoSizeExW(dword, char*, void*)")
# 呼び出し: GetFileVersionInfoSizeExW(dwFlags, lpwstrFilename, lpdwHandle)
# dwFlags : GET_FILE_VERSION_INFO_FLAGS -> "dword"
# lpwstrFilename : LPCWSTR -> "char*"
# lpdwHandle : DWORD* 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)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。