ClusterRegDeleteValueEx

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

DWORD ClusterRegDeleteValueEx(
    HKEY hKey,
    LPCWSTR lpszValueName,
    LPCWSTR lpszReason   // optional
);

<DllImport("CLUSAPI.dll", ExactSpelling:=True)>
Public Shared Function ClusterRegDeleteValueEx(
    hKey As IntPtr,   ' HKEY
    <MarshalAs(UnmanagedType.LPWStr)> lpszValueName As String,   ' LPCWSTR
    <MarshalAs(UnmanagedType.LPWStr)> lpszReason As String   ' LPCWSTR optional
) As UInteger
End Function

' hKey : HKEY
' lpszValueName : LPCWSTR
' lpszReason : LPCWSTR optional
Declare PtrSafe Function ClusterRegDeleteValueEx Lib "clusapi" ( _
    ByVal hKey As LongPtr, _
    ByVal lpszValueName As LongPtr, _
    ByVal lpszReason 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

ClusterRegDeleteValueEx = ctypes.windll.clusapi.ClusterRegDeleteValueEx
ClusterRegDeleteValueEx.restype = wintypes.DWORD
ClusterRegDeleteValueEx.argtypes = [
    wintypes.HANDLE,  # hKey : HKEY
    wintypes.LPCWSTR,  # lpszValueName : LPCWSTR
    wintypes.LPCWSTR,  # lpszReason : LPCWSTR optional
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('CLUSAPI.dll')
ClusterRegDeleteValueEx = Fiddle::Function.new(
  lib['ClusterRegDeleteValueEx'],
  [
    Fiddle::TYPE_VOIDP,  # hKey : HKEY
    Fiddle::TYPE_VOIDP,  # lpszValueName : LPCWSTR
    Fiddle::TYPE_VOIDP,  # lpszReason : LPCWSTR optional
  ],
  -Fiddle::TYPE_INT)

#[link(name = "clusapi")]
extern "system" {
    fn ClusterRegDeleteValueEx(
        hKey: *mut core::ffi::c_void,  // HKEY
        lpszValueName: *const u16,  // LPCWSTR
        lpszReason: *const u16  // LPCWSTR optional
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("CLUSAPI.dll")]
public static extern uint ClusterRegDeleteValueEx(IntPtr hKey, [MarshalAs(UnmanagedType.LPWStr)] string lpszValueName, [MarshalAs(UnmanagedType.LPWStr)] string lpszReason);
"@
$api = Add-Type -MemberDefinition $sig -Name 'CLUSAPI_ClusterRegDeleteValueEx' -Namespace Win32 -PassThru
# $api::ClusterRegDeleteValueEx(hKey, lpszValueName, lpszReason)

#uselib "CLUSAPI.dll"
#func global ClusterRegDeleteValueEx "ClusterRegDeleteValueEx" sptr, sptr, sptr
; ClusterRegDeleteValueEx hKey, lpszValueName, lpszReason   ; 戻り値は stat
; hKey : HKEY -> "sptr"
; lpszValueName : LPCWSTR -> "sptr"
; lpszReason : LPCWSTR optional -> "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。

#uselib "CLUSAPI.dll"
#cfunc global ClusterRegDeleteValueEx "ClusterRegDeleteValueEx" sptr, wstr, wstr
; res = ClusterRegDeleteValueEx(hKey, lpszValueName, lpszReason)
; hKey : HKEY -> "sptr"
; lpszValueName : LPCWSTR -> "wstr"
; lpszReason : LPCWSTR optional -> "wstr"

; DWORD ClusterRegDeleteValueEx(HKEY hKey, LPCWSTR lpszValueName, LPCWSTR lpszReason)
#uselib "CLUSAPI.dll"
#cfunc global ClusterRegDeleteValueEx "ClusterRegDeleteValueEx" intptr, wstr, wstr
; res = ClusterRegDeleteValueEx(hKey, lpszValueName, lpszReason)
; hKey : HKEY -> "intptr"
; lpszValueName : LPCWSTR -> "wstr"
; lpszReason : LPCWSTR optional -> "wstr"

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

var (
	clusapi = windows.NewLazySystemDLL("CLUSAPI.dll")
	procClusterRegDeleteValueEx = clusapi.NewProc("ClusterRegDeleteValueEx")
)

// hKey (HKEY), lpszValueName (LPCWSTR), lpszReason (LPCWSTR optional)
r1, _, err := procClusterRegDeleteValueEx.Call(
	uintptr(hKey),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpszValueName))),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpszReason))),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function ClusterRegDeleteValueEx(
  hKey: THandle;   // HKEY
  lpszValueName: PWideChar;   // LPCWSTR
  lpszReason: PWideChar   // LPCWSTR optional
): DWORD; stdcall;
  external 'CLUSAPI.dll' name 'ClusterRegDeleteValueEx';

result := DllCall("CLUSAPI\ClusterRegDeleteValueEx"
    , "Ptr", hKey   ; HKEY
    , "WStr", lpszValueName   ; LPCWSTR
    , "WStr", lpszReason   ; LPCWSTR optional
    , "UInt")   ; return: DWORD

●ClusterRegDeleteValueEx(hKey, lpszValueName, lpszReason) = DLL("CLUSAPI.dll", "dword ClusterRegDeleteValueEx(void*, char*, char*)")
# 呼び出し: ClusterRegDeleteValueEx(hKey, lpszValueName, lpszReason)
# hKey : HKEY -> "void*"
# lpszValueName : LPCWSTR -> "char*"
# lpszReason : LPCWSTR optional -> "char*"
# 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 ClusterRegDeleteValueEx(
    hKey: ?*anyopaque, // HKEY
    lpszValueName: [*c]const u16, // LPCWSTR
    lpszReason: [*c]const u16 // LPCWSTR optional
) callconv(std.os.windows.WINAPI) u32;

proc ClusterRegDeleteValueEx(
    hKey: pointer,  # HKEY
    lpszValueName: WideCString,  # LPCWSTR
    lpszReason: WideCString  # LPCWSTR optional
): uint32 {.importc: "ClusterRegDeleteValueEx", stdcall, dynlib: "CLUSAPI.dll".}

pragma(lib, "clusapi");
extern(Windows)
uint ClusterRegDeleteValueEx(
    void* hKey,   // HKEY
    const(wchar)* lpszValueName,   // LPCWSTR
    const(wchar)* lpszReason   // LPCWSTR optional
);

ccall((:ClusterRegDeleteValueEx, "CLUSAPI.dll"), stdcall, UInt32,
      (Ptr{Cvoid}, Cwstring, Cwstring),
      hKey, lpszValueName, lpszReason)
# hKey : HKEY -> Ptr{Cvoid}
# lpszValueName : LPCWSTR -> Cwstring
# lpszReason : LPCWSTR optional -> Cwstring
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
uint32_t ClusterRegDeleteValueEx(
    void* hKey,
    const uint16_t* lpszValueName,
    const uint16_t* lpszReason);
]]
local clusapi = ffi.load("clusapi")
-- clusapi.ClusterRegDeleteValueEx(hKey, lpszValueName, lpszReason)
-- hKey : HKEY
-- lpszValueName : LPCWSTR
-- lpszReason : LPCWSTR optional
-- 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 ClusterRegDeleteValueEx = lib.func('__stdcall', 'ClusterRegDeleteValueEx', 'uint32_t', ['void *', 'str16', 'str16']);
// ClusterRegDeleteValueEx(hKey, lpszValueName, lpszReason)
// hKey : HKEY -> 'void *'
// lpszValueName : LPCWSTR -> 'str16'
// lpszReason : LPCWSTR optional -> 'str16'
// 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", {
  ClusterRegDeleteValueEx: { parameters: ["pointer", "buffer", "buffer"], result: "u32" },
});
// lib.symbols.ClusterRegDeleteValueEx(hKey, lpszValueName, lpszReason)
// hKey : HKEY -> "pointer"
// lpszValueName : LPCWSTR -> "buffer"
// lpszReason : LPCWSTR optional -> "buffer"
// 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
uint32_t ClusterRegDeleteValueEx(
    void* hKey,
    const uint16_t* lpszValueName,
    const uint16_t* lpszReason);
C, "CLUSAPI.dll");
// $ffi->ClusterRegDeleteValueEx(hKey, lpszValueName, lpszReason);
// hKey : HKEY
// lpszValueName : LPCWSTR
// lpszReason : LPCWSTR optional
// 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 ClusterRegDeleteValueEx(
        Pointer hKey,   // HKEY
        WString lpszValueName,   // LPCWSTR
        WString lpszReason   // LPCWSTR optional
    );
}

@[Link("clusapi")]
lib LibCLUSAPI
  fun ClusterRegDeleteValueEx = ClusterRegDeleteValueEx(
    hKey : Void*,   # HKEY
    lpszValueName : UInt16*,   # LPCWSTR
    lpszReason : UInt16*   # LPCWSTR optional
  ) : UInt32
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 ClusterRegDeleteValueExNative = Uint32 Function(Pointer<Void>, Pointer<Utf16>, Pointer<Utf16>);
typedef ClusterRegDeleteValueExDart = int Function(Pointer<Void>, Pointer<Utf16>, Pointer<Utf16>);
final ClusterRegDeleteValueEx = DynamicLibrary.open('CLUSAPI.dll')
    .lookupFunction<ClusterRegDeleteValueExNative, ClusterRegDeleteValueExDart>('ClusterRegDeleteValueEx');
// hKey : HKEY -> Pointer<Void>
// lpszValueName : LPCWSTR -> Pointer<Utf16>
// lpszReason : LPCWSTR optional -> Pointer<Utf16>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function ClusterRegDeleteValueEx(
  hKey: THandle;   // HKEY
  lpszValueName: PWideChar;   // LPCWSTR
  lpszReason: PWideChar   // LPCWSTR optional
): DWORD; stdcall;
  external 'CLUSAPI.dll' name 'ClusterRegDeleteValueEx';

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

foreign import stdcall safe "ClusterRegDeleteValueEx"
  c_ClusterRegDeleteValueEx :: Ptr () -> CWString -> CWString -> IO Word32
-- hKey : HKEY -> Ptr ()
-- lpszValueName : LPCWSTR -> CWString
-- lpszReason : LPCWSTR optional -> CWString
-- 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 clusterregdeletevalueex =
  foreign "ClusterRegDeleteValueEx"
    ((ptr void) @-> (ptr uint16_t) @-> (ptr uint16_t) @-> returning uint32_t)
(* hKey : HKEY -> (ptr void) *)
(* lpszValueName : LPCWSTR -> (ptr uint16_t) *)
(* lpszReason : LPCWSTR optional -> (ptr uint16_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 ("ClusterRegDeleteValueEx" cluster-reg-delete-value-ex :convention :stdcall) :uint32
  (h-key :pointer)   ; HKEY
  (lpsz-value-name (:string :encoding :utf-16le))   ; LPCWSTR
  (lpsz-reason (:string :encoding :utf-16le)))   ; LPCWSTR optional
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $ClusterRegDeleteValueEx = Win32::API::More->new('CLUSAPI',
    'DWORD ClusterRegDeleteValueEx(HANDLE hKey, LPCWSTR lpszValueName, LPCWSTR lpszReason)');
# my $ret = $ClusterRegDeleteValueEx->Call($hKey, $lpszValueName, $lpszReason);
# hKey : HKEY -> HANDLE
# lpszValueName : LPCWSTR -> LPCWSTR
# lpszReason : LPCWSTR optional -> LPCWSTR
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。