CM_Open_Class_KeyW

// CFGMGR32.dll  (Unicode / -W)
#include <windows.h>

CONFIGRET CM_Open_Class_KeyW(
    GUID* ClassGuid,   // optional
    LPCWSTR pszClassName,   // optional
    DWORD samDesired,
    DWORD Disposition,
    HKEY* phkClass,
    DWORD ulFlags
);

<DllImport("CFGMGR32.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function CM_Open_Class_KeyW(
    ClassGuid As IntPtr,   ' GUID* optional
    <MarshalAs(UnmanagedType.LPWStr)> pszClassName As String,   ' LPCWSTR optional
    samDesired As UInteger,   ' DWORD
    Disposition As UInteger,   ' DWORD
    phkClass As IntPtr,   ' HKEY* out
    ulFlags As UInteger   ' DWORD
) As UInteger
End Function

' ClassGuid : GUID* optional
' pszClassName : LPCWSTR optional
' samDesired : DWORD
' Disposition : DWORD
' phkClass : HKEY* out
' ulFlags : DWORD
Declare PtrSafe Function CM_Open_Class_KeyW Lib "cfgmgr32" ( _
    ByVal ClassGuid As LongPtr, _
    ByVal pszClassName As LongPtr, _
    ByVal samDesired As Long, _
    ByVal Disposition As Long, _
    ByVal phkClass As LongPtr, _
    ByVal ulFlags 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

CM_Open_Class_KeyW = ctypes.windll.cfgmgr32.CM_Open_Class_KeyW
CM_Open_Class_KeyW.restype = wintypes.DWORD
CM_Open_Class_KeyW.argtypes = [
    ctypes.c_void_p,  # ClassGuid : GUID* optional
    wintypes.LPCWSTR,  # pszClassName : LPCWSTR optional
    wintypes.DWORD,  # samDesired : DWORD
    wintypes.DWORD,  # Disposition : DWORD
    ctypes.c_void_p,  # phkClass : HKEY* out
    wintypes.DWORD,  # ulFlags : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('CFGMGR32.dll')
CM_Open_Class_KeyW = Fiddle::Function.new(
  lib['CM_Open_Class_KeyW'],
  [
    Fiddle::TYPE_VOIDP,  # ClassGuid : GUID* optional
    Fiddle::TYPE_VOIDP,  # pszClassName : LPCWSTR optional
    -Fiddle::TYPE_INT,  # samDesired : DWORD
    -Fiddle::TYPE_INT,  # Disposition : DWORD
    Fiddle::TYPE_VOIDP,  # phkClass : HKEY* out
    -Fiddle::TYPE_INT,  # ulFlags : DWORD
  ],
  -Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "cfgmgr32")]
extern "system" {
    fn CM_Open_Class_KeyW(
        ClassGuid: *mut GUID,  // GUID* optional
        pszClassName: *const u16,  // LPCWSTR optional
        samDesired: u32,  // DWORD
        Disposition: u32,  // DWORD
        phkClass: *mut *mut core::ffi::c_void,  // HKEY* out
        ulFlags: u32  // DWORD
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("CFGMGR32.dll", CharSet = CharSet.Unicode)]
public static extern uint CM_Open_Class_KeyW(IntPtr ClassGuid, [MarshalAs(UnmanagedType.LPWStr)] string pszClassName, uint samDesired, uint Disposition, IntPtr phkClass, uint ulFlags);
"@
$api = Add-Type -MemberDefinition $sig -Name 'CFGMGR32_CM_Open_Class_KeyW' -Namespace Win32 -PassThru
# $api::CM_Open_Class_KeyW(ClassGuid, pszClassName, samDesired, Disposition, phkClass, ulFlags)

#uselib "CFGMGR32.dll"
#func global CM_Open_Class_KeyW "CM_Open_Class_KeyW" wptr, wptr, wptr, wptr, wptr, wptr
; CM_Open_Class_KeyW varptr(ClassGuid), pszClassName, samDesired, Disposition, phkClass, ulFlags   ; 戻り値は stat
; ClassGuid : GUID* optional -> "wptr"
; pszClassName : LPCWSTR optional -> "wptr"
; samDesired : DWORD -> "wptr"
; Disposition : DWORD -> "wptr"
; phkClass : HKEY* out -> "wptr"
; ulFlags : DWORD -> "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。

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

var (
	cfgmgr32 = windows.NewLazySystemDLL("CFGMGR32.dll")
	procCM_Open_Class_KeyW = cfgmgr32.NewProc("CM_Open_Class_KeyW")
)

// ClassGuid (GUID* optional), pszClassName (LPCWSTR optional), samDesired (DWORD), Disposition (DWORD), phkClass (HKEY* out), ulFlags (DWORD)
r1, _, err := procCM_Open_Class_KeyW.Call(
	uintptr(ClassGuid),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pszClassName))),
	uintptr(samDesired),
	uintptr(Disposition),
	uintptr(phkClass),
	uintptr(ulFlags),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // CONFIGRET

function CM_Open_Class_KeyW(
  ClassGuid: PGUID;   // GUID* optional
  pszClassName: PWideChar;   // LPCWSTR optional
  samDesired: DWORD;   // DWORD
  Disposition: DWORD;   // DWORD
  phkClass: Pointer;   // HKEY* out
  ulFlags: DWORD   // DWORD
): DWORD; stdcall;
  external 'CFGMGR32.dll' name 'CM_Open_Class_KeyW';

result := DllCall("CFGMGR32\CM_Open_Class_KeyW"
    , "Ptr", ClassGuid   ; GUID* optional
    , "WStr", pszClassName   ; LPCWSTR optional
    , "UInt", samDesired   ; DWORD
    , "UInt", Disposition   ; DWORD
    , "Ptr", phkClass   ; HKEY* out
    , "UInt", ulFlags   ; DWORD
    , "UInt")   ; return: CONFIGRET

●CM_Open_Class_KeyW(ClassGuid, pszClassName, samDesired, Disposition, phkClass, ulFlags) = DLL("CFGMGR32.dll", "dword CM_Open_Class_KeyW(void*, char*, dword, dword, void*, dword)")
# 呼び出し: CM_Open_Class_KeyW(ClassGuid, pszClassName, samDesired, Disposition, phkClass, ulFlags)
# ClassGuid : GUID* optional -> "void*"
# pszClassName : LPCWSTR optional -> "char*"
# samDesired : DWORD -> "dword"
# Disposition : DWORD -> "dword"
# phkClass : HKEY* out -> "void*"
# ulFlags : DWORD -> "dword"
# 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。

const std = @import("std");

extern "cfgmgr32" fn CM_Open_Class_KeyW(
    ClassGuid: [*c]GUID, // GUID* optional
    pszClassName: [*c]const u16, // LPCWSTR optional
    samDesired: u32, // DWORD
    Disposition: u32, // DWORD
    phkClass: ?*anyopaque, // HKEY* out
    ulFlags: u32 // DWORD
) callconv(std.os.windows.WINAPI) u32;
// Unicode(-W): UTF-16LE のヌル終端バッファ([*c]const u16)を渡す。

proc CM_Open_Class_KeyW(
    ClassGuid: ptr GUID,  # GUID* optional
    pszClassName: WideCString,  # LPCWSTR optional
    samDesired: uint32,  # DWORD
    Disposition: uint32,  # DWORD
    phkClass: pointer,  # HKEY* out
    ulFlags: uint32  # DWORD
): uint32 {.importc: "CM_Open_Class_KeyW", stdcall, dynlib: "CFGMGR32.dll".}
# Unicode(-W): WideCString は newWideCString("...") で生成。

pragma(lib, "cfgmgr32");
extern(Windows)
uint CM_Open_Class_KeyW(
    GUID* ClassGuid,   // GUID* optional
    const(wchar)* pszClassName,   // LPCWSTR optional
    uint samDesired,   // DWORD
    uint Disposition,   // DWORD
    void* phkClass,   // HKEY* out
    uint ulFlags   // DWORD
);

ccall((:CM_Open_Class_KeyW, "CFGMGR32.dll"), stdcall, UInt32,
      (Ptr{GUID}, Cwstring, UInt32, UInt32, Ptr{Cvoid}, UInt32),
      ClassGuid, pszClassName, samDesired, Disposition, phkClass, ulFlags)
# ClassGuid : GUID* optional -> Ptr{GUID}
# pszClassName : LPCWSTR optional -> Cwstring
# samDesired : DWORD -> UInt32
# Disposition : DWORD -> UInt32
# phkClass : HKEY* out -> Ptr{Cvoid}
# ulFlags : DWORD -> UInt32
# stdcall は 32bit のみ意味を持つ(x64 では無視)。
# Unicode(-W): Cwstring には transcode(UInt16, "...") 等で UTF-16 を渡す。

local ffi = require("ffi")
ffi.cdef[[
uint32_t CM_Open_Class_KeyW(
    void* ClassGuid,
    const uint16_t* pszClassName,
    uint32_t samDesired,
    uint32_t Disposition,
    void* phkClass,
    uint32_t ulFlags);
]]
local cfgmgr32 = ffi.load("cfgmgr32")
-- cfgmgr32.CM_Open_Class_KeyW(ClassGuid, pszClassName, samDesired, Disposition, phkClass, ulFlags)
-- ClassGuid : GUID* optional
-- pszClassName : LPCWSTR optional
-- samDesired : DWORD
-- Disposition : DWORD
-- phkClass : HKEY* out
-- ulFlags : DWORD
-- 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。
-- Unicode(-W): uint16_t* には UTF-16LE のバッファ(ffi.new("uint16_t[?]", ...))を渡す。

const koffi = require('koffi');
const lib = koffi.load('CFGMGR32.dll');
const CM_Open_Class_KeyW = lib.func('__stdcall', 'CM_Open_Class_KeyW', 'uint32_t', ['void *', 'str16', 'uint32_t', 'uint32_t', 'void *', 'uint32_t']);
// CM_Open_Class_KeyW(ClassGuid, pszClassName, samDesired, Disposition, phkClass, ulFlags)
// ClassGuid : GUID* optional -> 'void *'
// pszClassName : LPCWSTR optional -> 'str16'
// samDesired : DWORD -> 'uint32_t'
// Disposition : DWORD -> 'uint32_t'
// phkClass : HKEY* out -> 'void *'
// ulFlags : DWORD -> '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("CFGMGR32.dll", {
  CM_Open_Class_KeyW: { parameters: ["pointer", "buffer", "u32", "u32", "pointer", "u32"], result: "u32" },
});
// lib.symbols.CM_Open_Class_KeyW(ClassGuid, pszClassName, samDesired, Disposition, phkClass, ulFlags)
// ClassGuid : GUID* optional -> "pointer"
// pszClassName : LPCWSTR optional -> "buffer"
// samDesired : DWORD -> "u32"
// Disposition : DWORD -> "u32"
// phkClass : HKEY* out -> "pointer"
// ulFlags : DWORD -> "u32"
// 文字列は "buffer"。Unicode(-W) は new TextEncoder() ではなく UTF-16LE のバイト列(末尾に \x00\x00)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 CM_Open_Class_KeyW(
    void* ClassGuid,
    const uint16_t* pszClassName,
    uint32_t samDesired,
    uint32_t Disposition,
    void* phkClass,
    uint32_t ulFlags);
C, "CFGMGR32.dll");
// $ffi->CM_Open_Class_KeyW(ClassGuid, pszClassName, samDesired, Disposition, phkClass, ulFlags);
// ClassGuid : GUID* optional
// pszClassName : LPCWSTR optional
// samDesired : DWORD
// Disposition : DWORD
// phkClass : HKEY* out
// ulFlags : DWORD
// 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 Cfgmgr32 extends StdCallLibrary {
    Cfgmgr32 INSTANCE = Native.load("cfgmgr32", Cfgmgr32.class, W32APIOptions.UNICODE_OPTIONS);
    int CM_Open_Class_KeyW(
        Pointer ClassGuid,   // GUID* optional
        WString pszClassName,   // LPCWSTR optional
        int samDesired,   // DWORD
        int Disposition,   // DWORD
        Pointer phkClass,   // HKEY* out
        int ulFlags   // DWORD
    );
}
// Unicode(-W): WString(入力)/char[](出力)で UTF-16 をマーシャリング。

@[Link("cfgmgr32")]
lib LibCFGMGR32
  fun CM_Open_Class_KeyW = CM_Open_Class_KeyW(
    ClassGuid : GUID*,   # GUID* optional
    pszClassName : UInt16*,   # LPCWSTR optional
    samDesired : UInt32,   # DWORD
    Disposition : UInt32,   # DWORD
    phkClass : Void*,   # HKEY* out
    ulFlags : UInt32   # DWORD
  ) : 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 CM_Open_Class_KeyWNative = Uint32 Function(Pointer<Void>, Pointer<Utf16>, Uint32, Uint32, Pointer<Void>, Uint32);
typedef CM_Open_Class_KeyWDart = int Function(Pointer<Void>, Pointer<Utf16>, int, int, Pointer<Void>, int);
final CM_Open_Class_KeyW = DynamicLibrary.open('CFGMGR32.dll')
    .lookupFunction<CM_Open_Class_KeyWNative, CM_Open_Class_KeyWDart>('CM_Open_Class_KeyW');
// ClassGuid : GUID* optional -> Pointer<Void>
// pszClassName : LPCWSTR optional -> Pointer<Utf16>
// samDesired : DWORD -> Uint32
// Disposition : DWORD -> Uint32
// phkClass : HKEY* out -> Pointer<Void>
// ulFlags : DWORD -> Uint32
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function CM_Open_Class_KeyW(
  ClassGuid: PGUID;   // GUID* optional
  pszClassName: PWideChar;   // LPCWSTR optional
  samDesired: DWORD;   // DWORD
  Disposition: DWORD;   // DWORD
  phkClass: Pointer;   // HKEY* out
  ulFlags: DWORD   // DWORD
): DWORD; stdcall;
  external 'CFGMGR32.dll' name 'CM_Open_Class_KeyW';

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

foreign import stdcall safe "CM_Open_Class_KeyW"
  c_CM_Open_Class_KeyW :: Ptr () -> CWString -> Word32 -> Word32 -> Ptr () -> Word32 -> IO Word32
-- ClassGuid : GUID* optional -> Ptr ()
-- pszClassName : LPCWSTR optional -> CWString
-- samDesired : DWORD -> Word32
-- Disposition : DWORD -> Word32
-- phkClass : HKEY* out -> Ptr ()
-- ulFlags : DWORD -> 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 cm_open_class_keyw =
  foreign "CM_Open_Class_KeyW"
    ((ptr void) @-> (ptr uint16_t) @-> uint32_t @-> uint32_t @-> (ptr void) @-> uint32_t @-> returning uint32_t)
(* ClassGuid : GUID* optional -> (ptr void) *)
(* pszClassName : LPCWSTR optional -> (ptr uint16_t) *)
(* samDesired : DWORD -> uint32_t *)
(* Disposition : DWORD -> uint32_t *)
(* phkClass : HKEY* out -> (ptr void) *)
(* ulFlags : DWORD -> 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 cfgmgr32 (t "CFGMGR32.dll"))
(cffi:use-foreign-library cfgmgr32)

(cffi:defcfun ("CM_Open_Class_KeyW" cm-open-class-key-w :convention :stdcall) :uint32
  (class-guid :pointer)   ; GUID* optional
  (psz-class-name (:string :encoding :utf-16le))   ; LPCWSTR optional
  (sam-desired :uint32)   ; DWORD
  (disposition :uint32)   ; DWORD
  (phk-class :pointer)   ; HKEY* out
  (ul-flags :uint32))   ; DWORD
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $CM_Open_Class_KeyW = Win32::API::More->new('CFGMGR32',
    'DWORD CM_Open_Class_KeyW(LPVOID ClassGuid, LPCWSTR pszClassName, DWORD samDesired, DWORD Disposition, HANDLE phkClass, DWORD ulFlags)');
# my $ret = $CM_Open_Class_KeyW->Call($ClassGuid, $pszClassName, $samDesired, $Disposition, $phkClass, $ulFlags);
# ClassGuid : GUID* optional -> LPVOID
# pszClassName : LPCWSTR optional -> LPCWSTR
# samDesired : DWORD -> DWORD
# Disposition : DWORD -> DWORD
# phkClass : HKEY* out -> HANDLE
# ulFlags : DWORD -> DWORD
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。
# Unicode(-W): LPCWSTR/LPWSTR は Win32::API が UTF-16 変換を行う。