VerQueryValueW

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

BOOL VerQueryValueW(
    const void* pBlock,
    LPCWSTR lpSubBlock,
    void** lplpBuffer,
    DWORD* puLen
);

<DllImport("VERSION.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function VerQueryValueW(
    pBlock As IntPtr,   ' void*
    <MarshalAs(UnmanagedType.LPWStr)> lpSubBlock As String,   ' LPCWSTR
    lplpBuffer As IntPtr,   ' void** out
    <Out> ByRef puLen As UInteger   ' DWORD* out
) As Boolean
End Function

' pBlock : void*
' lpSubBlock : LPCWSTR
' lplpBuffer : void** out
' puLen : DWORD* out
Declare PtrSafe Function VerQueryValueW Lib "version" ( _
    ByVal pBlock As LongPtr, _
    ByVal lpSubBlock As LongPtr, _
    ByVal lplpBuffer As LongPtr, _
    ByRef puLen 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

VerQueryValueW = ctypes.windll.version.VerQueryValueW
VerQueryValueW.restype = wintypes.BOOL
VerQueryValueW.argtypes = [
    ctypes.POINTER(None),  # pBlock : void*
    wintypes.LPCWSTR,  # lpSubBlock : LPCWSTR
    ctypes.c_void_p,  # lplpBuffer : void** out
    ctypes.POINTER(wintypes.DWORD),  # puLen : DWORD* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('VERSION.dll')
VerQueryValueW = Fiddle::Function.new(
  lib['VerQueryValueW'],
  [
    Fiddle::TYPE_VOIDP,  # pBlock : void*
    Fiddle::TYPE_VOIDP,  # lpSubBlock : LPCWSTR
    Fiddle::TYPE_VOIDP,  # lplpBuffer : void** out
    Fiddle::TYPE_VOIDP,  # puLen : DWORD* out
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "version")]
extern "system" {
    fn VerQueryValueW(
        pBlock: *const (),  // void*
        lpSubBlock: *const u16,  // LPCWSTR
        lplpBuffer: *mut *mut (),  // void** out
        puLen: *mut u32  // DWORD* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("VERSION.dll", CharSet = CharSet.Unicode)]
public static extern bool VerQueryValueW(IntPtr pBlock, [MarshalAs(UnmanagedType.LPWStr)] string lpSubBlock, IntPtr lplpBuffer, out uint puLen);
"@
$api = Add-Type -MemberDefinition $sig -Name 'VERSION_VerQueryValueW' -Namespace Win32 -PassThru
# $api::VerQueryValueW(pBlock, lpSubBlock, lplpBuffer, puLen)

#uselib "VERSION.dll"
#func global VerQueryValueW "VerQueryValueW" wptr, wptr, wptr, wptr
; VerQueryValueW pBlock, lpSubBlock, lplpBuffer, varptr(puLen)   ; 戻り値は stat
; pBlock : void* -> "wptr"
; lpSubBlock : LPCWSTR -> "wptr"
; lplpBuffer : void** out -> "wptr"
; puLen : 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 VerQueryValueW "VerQueryValueW" sptr, wstr, sptr, var
; res = VerQueryValueW(pBlock, lpSubBlock, lplpBuffer, puLen)
; pBlock : void* -> "sptr"
; lpSubBlock : LPCWSTR -> "wstr"
; lplpBuffer : void** out -> "sptr"
; puLen : 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。

; BOOL VerQueryValueW(void* pBlock, LPCWSTR lpSubBlock, void** lplpBuffer, DWORD* puLen)
#uselib "VERSION.dll"
#cfunc global VerQueryValueW "VerQueryValueW" intptr, wstr, intptr, var
; res = VerQueryValueW(pBlock, lpSubBlock, lplpBuffer, puLen)
; pBlock : void* -> "intptr"
; lpSubBlock : LPCWSTR -> "wstr"
; lplpBuffer : void** out -> "intptr"
; puLen : 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")
	procVerQueryValueW = version.NewProc("VerQueryValueW")
)

// pBlock (void*), lpSubBlock (LPCWSTR), lplpBuffer (void** out), puLen (DWORD* out)
r1, _, err := procVerQueryValueW.Call(
	uintptr(pBlock),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpSubBlock))),
	uintptr(lplpBuffer),
	uintptr(puLen),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function VerQueryValueW(
  pBlock: Pointer;   // void*
  lpSubBlock: PWideChar;   // LPCWSTR
  lplpBuffer: Pointer;   // void** out
  puLen: Pointer   // DWORD* out
): BOOL; stdcall;
  external 'VERSION.dll' name 'VerQueryValueW';

result := DllCall("VERSION\VerQueryValueW"
    , "Ptr", pBlock   ; void*
    , "WStr", lpSubBlock   ; LPCWSTR
    , "Ptr", lplpBuffer   ; void** out
    , "Ptr", puLen   ; DWORD* out
    , "Int")   ; return: BOOL

●VerQueryValueW(pBlock, lpSubBlock, lplpBuffer, puLen) = DLL("VERSION.dll", "bool VerQueryValueW(void*, char*, void*, void*)")
# 呼び出し: VerQueryValueW(pBlock, lpSubBlock, lplpBuffer, puLen)
# pBlock : void* -> "void*"
# lpSubBlock : LPCWSTR -> "char*"
# lplpBuffer : void** out -> "void*"
# puLen : 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。