ClusterRegQueryValue

// CLUSAPI.dll
#include <windows.h>

INT ClusterRegQueryValue(
    HKEY hKey,
    LPCWSTR lpszValueName,
    DWORD* lpdwValueType,   // optional
    BYTE* lpData,   // optional
    DWORD* lpcbData   // optional
);

<DllImport("CLUSAPI.dll", ExactSpelling:=True)>
Public Shared Function ClusterRegQueryValue(
    hKey As IntPtr,   ' HKEY
    <MarshalAs(UnmanagedType.LPWStr)> lpszValueName As String,   ' LPCWSTR
    lpdwValueType As IntPtr,   ' DWORD* optional, out
    lpData As IntPtr,   ' BYTE* optional, out
    lpcbData As IntPtr   ' DWORD* optional, in/out
) As Integer
End Function

' hKey : HKEY
' lpszValueName : LPCWSTR
' lpdwValueType : DWORD* optional, out
' lpData : BYTE* optional, out
' lpcbData : DWORD* optional, in/out
Declare PtrSafe Function ClusterRegQueryValue Lib "clusapi" ( _
    ByVal hKey As LongPtr, _
    ByVal lpszValueName As LongPtr, _
    ByVal lpdwValueType As LongPtr, _
    ByVal lpData As LongPtr, _
    ByVal lpcbData As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

ClusterRegQueryValue = ctypes.windll.clusapi.ClusterRegQueryValue
ClusterRegQueryValue.restype = ctypes.c_int
ClusterRegQueryValue.argtypes = [
    wintypes.HANDLE,  # hKey : HKEY
    wintypes.LPCWSTR,  # lpszValueName : LPCWSTR
    ctypes.POINTER(wintypes.DWORD),  # lpdwValueType : DWORD* optional, out
    ctypes.POINTER(ctypes.c_ubyte),  # lpData : BYTE* optional, out
    ctypes.POINTER(wintypes.DWORD),  # lpcbData : DWORD* optional, in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('CLUSAPI.dll')
ClusterRegQueryValue = Fiddle::Function.new(
  lib['ClusterRegQueryValue'],
  [
    Fiddle::TYPE_VOIDP,  # hKey : HKEY
    Fiddle::TYPE_VOIDP,  # lpszValueName : LPCWSTR
    Fiddle::TYPE_VOIDP,  # lpdwValueType : DWORD* optional, out
    Fiddle::TYPE_VOIDP,  # lpData : BYTE* optional, out
    Fiddle::TYPE_VOIDP,  # lpcbData : DWORD* optional, in/out
  ],
  Fiddle::TYPE_INT)

#[link(name = "clusapi")]
extern "system" {
    fn ClusterRegQueryValue(
        hKey: *mut core::ffi::c_void,  // HKEY
        lpszValueName: *const u16,  // LPCWSTR
        lpdwValueType: *mut u32,  // DWORD* optional, out
        lpData: *mut u8,  // BYTE* optional, out
        lpcbData: *mut u32  // DWORD* optional, in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("CLUSAPI.dll")]
public static extern int ClusterRegQueryValue(IntPtr hKey, [MarshalAs(UnmanagedType.LPWStr)] string lpszValueName, IntPtr lpdwValueType, IntPtr lpData, IntPtr lpcbData);
"@
$api = Add-Type -MemberDefinition $sig -Name 'CLUSAPI_ClusterRegQueryValue' -Namespace Win32 -PassThru
# $api::ClusterRegQueryValue(hKey, lpszValueName, lpdwValueType, lpData, lpcbData)

#uselib "CLUSAPI.dll"
#func global ClusterRegQueryValue "ClusterRegQueryValue" sptr, sptr, sptr, sptr, sptr
; ClusterRegQueryValue hKey, lpszValueName, varptr(lpdwValueType), varptr(lpData), varptr(lpcbData)   ; 戻り値は stat
; hKey : HKEY -> "sptr"
; lpszValueName : LPCWSTR -> "sptr"
; lpdwValueType : DWORD* optional, out -> "sptr"
; lpData : BYTE* optional, out -> "sptr"
; lpcbData : DWORD* optional, in/out -> "sptr"
; ※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。

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

var (
	clusapi = windows.NewLazySystemDLL("CLUSAPI.dll")
	procClusterRegQueryValue = clusapi.NewProc("ClusterRegQueryValue")
)

// hKey (HKEY), lpszValueName (LPCWSTR), lpdwValueType (DWORD* optional, out), lpData (BYTE* optional, out), lpcbData (DWORD* optional, in/out)
r1, _, err := procClusterRegQueryValue.Call(
	uintptr(hKey),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpszValueName))),
	uintptr(lpdwValueType),
	uintptr(lpData),
	uintptr(lpcbData),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function ClusterRegQueryValue(
  hKey: THandle;   // HKEY
  lpszValueName: PWideChar;   // LPCWSTR
  lpdwValueType: Pointer;   // DWORD* optional, out
  lpData: Pointer;   // BYTE* optional, out
  lpcbData: Pointer   // DWORD* optional, in/out
): Integer; stdcall;
  external 'CLUSAPI.dll' name 'ClusterRegQueryValue';

result := DllCall("CLUSAPI\ClusterRegQueryValue"
    , "Ptr", hKey   ; HKEY
    , "WStr", lpszValueName   ; LPCWSTR
    , "Ptr", lpdwValueType   ; DWORD* optional, out
    , "Ptr", lpData   ; BYTE* optional, out
    , "Ptr", lpcbData   ; DWORD* optional, in/out
    , "Int")   ; return: INT

●ClusterRegQueryValue(hKey, lpszValueName, lpdwValueType, lpData, lpcbData) = DLL("CLUSAPI.dll", "int ClusterRegQueryValue(void*, char*, void*, void*, void*)")
# 呼び出し: ClusterRegQueryValue(hKey, lpszValueName, lpdwValueType, lpData, lpcbData)
# hKey : HKEY -> "void*"
# lpszValueName : LPCWSTR -> "char*"
# lpdwValueType : DWORD* optional, out -> "void*"
# lpData : BYTE* optional, out -> "void*"
# lpcbData : DWORD* optional, in/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)。

const std = @import("std");

extern "clusapi" fn ClusterRegQueryValue(
    hKey: ?*anyopaque, // HKEY
    lpszValueName: [*c]const u16, // LPCWSTR
    lpdwValueType: [*c]u32, // DWORD* optional, out
    lpData: [*c]u8, // BYTE* optional, out
    lpcbData: [*c]u32 // DWORD* optional, in/out
) callconv(std.os.windows.WINAPI) i32;

proc ClusterRegQueryValue(
    hKey: pointer,  # HKEY
    lpszValueName: WideCString,  # LPCWSTR
    lpdwValueType: ptr uint32,  # DWORD* optional, out
    lpData: ptr uint8,  # BYTE* optional, out
    lpcbData: ptr uint32  # DWORD* optional, in/out
): int32 {.importc: "ClusterRegQueryValue", stdcall, dynlib: "CLUSAPI.dll".}

pragma(lib, "clusapi");
extern(Windows)
int ClusterRegQueryValue(
    void* hKey,   // HKEY
    const(wchar)* lpszValueName,   // LPCWSTR
    uint* lpdwValueType,   // DWORD* optional, out
    ubyte* lpData,   // BYTE* optional, out
    uint* lpcbData   // DWORD* optional, in/out
);

ccall((:ClusterRegQueryValue, "CLUSAPI.dll"), stdcall, Int32,
      (Ptr{Cvoid}, Cwstring, Ptr{UInt32}, Ptr{UInt8}, Ptr{UInt32}),
      hKey, lpszValueName, lpdwValueType, lpData, lpcbData)
# hKey : HKEY -> Ptr{Cvoid}
# lpszValueName : LPCWSTR -> Cwstring
# lpdwValueType : DWORD* optional, out -> Ptr{UInt32}
# lpData : BYTE* optional, out -> Ptr{UInt8}
# lpcbData : DWORD* optional, in/out -> Ptr{UInt32}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t ClusterRegQueryValue(
    void* hKey,
    const uint16_t* lpszValueName,
    uint32_t* lpdwValueType,
    uint8_t* lpData,
    uint32_t* lpcbData);
]]
local clusapi = ffi.load("clusapi")
-- clusapi.ClusterRegQueryValue(hKey, lpszValueName, lpdwValueType, lpData, lpcbData)
-- hKey : HKEY
-- lpszValueName : LPCWSTR
-- lpdwValueType : DWORD* optional, out
-- lpData : BYTE* optional, out
-- lpcbData : DWORD* optional, in/out
-- 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。

const koffi = require('koffi');
const lib = koffi.load('CLUSAPI.dll');
const ClusterRegQueryValue = lib.func('__stdcall', 'ClusterRegQueryValue', 'int32_t', ['void *', 'str16', 'uint32_t *', 'uint8_t *', 'uint32_t *']);
// ClusterRegQueryValue(hKey, lpszValueName, lpdwValueType, lpData, lpcbData)
// hKey : HKEY -> 'void *'
// lpszValueName : LPCWSTR -> 'str16'
// lpdwValueType : DWORD* optional, out -> 'uint32_t *'
// lpData : BYTE* optional, out -> 'uint8_t *'
// lpcbData : DWORD* optional, in/out -> 'uint32_t *'
// 出力ポインタは koffi.out(...) で包む。構造体は koffi.struct で定義。

const lib = Deno.dlopen("CLUSAPI.dll", {
  ClusterRegQueryValue: { parameters: ["pointer", "buffer", "pointer", "pointer", "pointer"], result: "i32" },
});
// lib.symbols.ClusterRegQueryValue(hKey, lpszValueName, lpdwValueType, lpData, lpcbData)
// hKey : HKEY -> "pointer"
// lpszValueName : LPCWSTR -> "buffer"
// lpdwValueType : DWORD* optional, out -> "pointer"
// lpData : BYTE* optional, out -> "pointer"
// lpcbData : DWORD* optional, in/out -> "pointer"
// 文字列引数は "buffer"(NUL 終端のバイト列を Uint8Array で渡す)。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
int32_t ClusterRegQueryValue(
    void* hKey,
    const uint16_t* lpszValueName,
    uint32_t* lpdwValueType,
    uint8_t* lpData,
    uint32_t* lpcbData);
C, "CLUSAPI.dll");
// $ffi->ClusterRegQueryValue(hKey, lpszValueName, lpdwValueType, lpData, lpcbData);
// hKey : HKEY
// lpszValueName : LPCWSTR
// lpdwValueType : DWORD* optional, out
// lpData : BYTE* optional, out
// lpcbData : DWORD* optional, in/out
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。

import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;

public interface Clusapi extends StdCallLibrary {
    Clusapi INSTANCE = Native.load("clusapi", Clusapi.class);
    int ClusterRegQueryValue(
        Pointer hKey,   // HKEY
        WString lpszValueName,   // LPCWSTR
        IntByReference lpdwValueType,   // DWORD* optional, out
        byte[] lpData,   // BYTE* optional, out
        IntByReference lpcbData   // DWORD* optional, in/out
    );
}

@[Link("clusapi")]
lib LibCLUSAPI
  fun ClusterRegQueryValue = ClusterRegQueryValue(
    hKey : Void*,   # HKEY
    lpszValueName : UInt16*,   # LPCWSTR
    lpdwValueType : UInt32*,   # DWORD* optional, out
    lpData : UInt8*,   # BYTE* optional, out
    lpcbData : UInt32*   # DWORD* optional, in/out
  ) : Int32
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。

import 'dart:ffi';
import 'package:ffi/ffi.dart';

typedef ClusterRegQueryValueNative = Int32 Function(Pointer<Void>, Pointer<Utf16>, Pointer<Uint32>, Pointer<Uint8>, Pointer<Uint32>);
typedef ClusterRegQueryValueDart = int Function(Pointer<Void>, Pointer<Utf16>, Pointer<Uint32>, Pointer<Uint8>, Pointer<Uint32>);
final ClusterRegQueryValue = DynamicLibrary.open('CLUSAPI.dll')
    .lookupFunction<ClusterRegQueryValueNative, ClusterRegQueryValueDart>('ClusterRegQueryValue');
// hKey : HKEY -> Pointer<Void>
// lpszValueName : LPCWSTR -> Pointer<Utf16>
// lpdwValueType : DWORD* optional, out -> Pointer<Uint32>
// lpData : BYTE* optional, out -> Pointer<Uint8>
// lpcbData : DWORD* optional, in/out -> Pointer<Uint32>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function ClusterRegQueryValue(
  hKey: THandle;   // HKEY
  lpszValueName: PWideChar;   // LPCWSTR
  lpdwValueType: Pointer;   // DWORD* optional, out
  lpData: Pointer;   // BYTE* optional, out
  lpcbData: Pointer   // DWORD* optional, in/out
): Integer; stdcall;
  external 'CLUSAPI.dll' name 'ClusterRegQueryValue';

import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "ClusterRegQueryValue"
  c_ClusterRegQueryValue :: Ptr () -> CWString -> Ptr Word32 -> Ptr Word8 -> Ptr Word32 -> IO Int32
-- hKey : HKEY -> Ptr ()
-- lpszValueName : LPCWSTR -> CWString
-- lpdwValueType : DWORD* optional, out -> Ptr Word32
-- lpData : BYTE* optional, out -> Ptr Word8
-- lpcbData : DWORD* optional, in/out -> Ptr Word32
-- 要 GHC(Windows)。stdcall は x64 では ccall として扱われる。ブロックする API は safe 呼び出し推奨。

open Ctypes
open Foreign

let clusterregqueryvalue =
  foreign "ClusterRegQueryValue"
    ((ptr void) @-> (ptr uint16_t) @-> (ptr uint32_t) @-> (ptr uint8_t) @-> (ptr uint32_t) @-> returning int32_t)
(* hKey : HKEY -> (ptr void) *)
(* lpszValueName : LPCWSTR -> (ptr uint16_t) *)
(* lpdwValueType : DWORD* optional, out -> (ptr uint32_t) *)
(* lpData : BYTE* optional, out -> (ptr uint8_t) *)
(* lpcbData : DWORD* optional, in/out -> (ptr uint32_t) *)
(* foreign は cdecl 前提。x64 Windows では WINAPI と一致。構造体は ctypes structure を定義のこと。 *)

(cffi:define-foreign-library clusapi (t "CLUSAPI.dll"))
(cffi:use-foreign-library clusapi)

(cffi:defcfun ("ClusterRegQueryValue" cluster-reg-query-value :convention :stdcall) :int32
  (h-key :pointer)   ; HKEY
  (lpsz-value-name (:string :encoding :utf-16le))   ; LPCWSTR
  (lpdw-value-type :pointer)   ; DWORD* optional, out
  (lp-data :pointer)   ; BYTE* optional, out
  (lpcb-data :pointer))   ; DWORD* optional, in/out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $ClusterRegQueryValue = Win32::API::More->new('CLUSAPI',
    'int ClusterRegQueryValue(HANDLE hKey, LPCWSTR lpszValueName, LPVOID lpdwValueType, LPVOID lpData, LPVOID lpcbData)');
# my $ret = $ClusterRegQueryValue->Call($hKey, $lpszValueName, $lpdwValueType, $lpData, $lpcbData);
# hKey : HKEY -> HANDLE
# lpszValueName : LPCWSTR -> LPCWSTR
# lpdwValueType : DWORD* optional, out -> LPVOID
# lpData : BYTE* optional, out -> LPVOID
# lpcbData : DWORD* optional, in/out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。