ClusterRegOpenKey

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

INT ClusterRegOpenKey(
    HKEY hKey,
    LPCWSTR lpszSubKey,
    DWORD samDesired,
    HKEY* phkResult
);

<DllImport("CLUSAPI.dll", ExactSpelling:=True)>
Public Shared Function ClusterRegOpenKey(
    hKey As IntPtr,   ' HKEY
    <MarshalAs(UnmanagedType.LPWStr)> lpszSubKey As String,   ' LPCWSTR
    samDesired As UInteger,   ' DWORD
    phkResult As IntPtr   ' HKEY* out
) As Integer
End Function

' hKey : HKEY
' lpszSubKey : LPCWSTR
' samDesired : DWORD
' phkResult : HKEY* out
Declare PtrSafe Function ClusterRegOpenKey Lib "clusapi" ( _
    ByVal hKey As LongPtr, _
    ByVal lpszSubKey As LongPtr, _
    ByVal samDesired As Long, _
    ByVal phkResult 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

ClusterRegOpenKey = ctypes.windll.clusapi.ClusterRegOpenKey
ClusterRegOpenKey.restype = ctypes.c_int
ClusterRegOpenKey.argtypes = [
    wintypes.HANDLE,  # hKey : HKEY
    wintypes.LPCWSTR,  # lpszSubKey : LPCWSTR
    wintypes.DWORD,  # samDesired : DWORD
    ctypes.c_void_p,  # phkResult : HKEY* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('CLUSAPI.dll')
ClusterRegOpenKey = Fiddle::Function.new(
  lib['ClusterRegOpenKey'],
  [
    Fiddle::TYPE_VOIDP,  # hKey : HKEY
    Fiddle::TYPE_VOIDP,  # lpszSubKey : LPCWSTR
    -Fiddle::TYPE_INT,  # samDesired : DWORD
    Fiddle::TYPE_VOIDP,  # phkResult : HKEY* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "clusapi")]
extern "system" {
    fn ClusterRegOpenKey(
        hKey: *mut core::ffi::c_void,  // HKEY
        lpszSubKey: *const u16,  // LPCWSTR
        samDesired: u32,  // DWORD
        phkResult: *mut *mut core::ffi::c_void  // HKEY* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("CLUSAPI.dll")]
public static extern int ClusterRegOpenKey(IntPtr hKey, [MarshalAs(UnmanagedType.LPWStr)] string lpszSubKey, uint samDesired, IntPtr phkResult);
"@
$api = Add-Type -MemberDefinition $sig -Name 'CLUSAPI_ClusterRegOpenKey' -Namespace Win32 -PassThru
# $api::ClusterRegOpenKey(hKey, lpszSubKey, samDesired, phkResult)

#uselib "CLUSAPI.dll"
#func global ClusterRegOpenKey "ClusterRegOpenKey" sptr, sptr, sptr, sptr
; ClusterRegOpenKey hKey, lpszSubKey, samDesired, phkResult   ; 戻り値は stat
; hKey : HKEY -> "sptr"
; lpszSubKey : LPCWSTR -> "sptr"
; samDesired : DWORD -> "sptr"
; phkResult : HKEY* 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。

#uselib "CLUSAPI.dll"
#cfunc global ClusterRegOpenKey "ClusterRegOpenKey" sptr, wstr, int, sptr
; res = ClusterRegOpenKey(hKey, lpszSubKey, samDesired, phkResult)
; hKey : HKEY -> "sptr"
; lpszSubKey : LPCWSTR -> "wstr"
; samDesired : DWORD -> "int"
; phkResult : HKEY* out -> "sptr"

; INT ClusterRegOpenKey(HKEY hKey, LPCWSTR lpszSubKey, DWORD samDesired, HKEY* phkResult)
#uselib "CLUSAPI.dll"
#cfunc global ClusterRegOpenKey "ClusterRegOpenKey" intptr, wstr, int, intptr
; res = ClusterRegOpenKey(hKey, lpszSubKey, samDesired, phkResult)
; hKey : HKEY -> "intptr"
; lpszSubKey : LPCWSTR -> "wstr"
; samDesired : DWORD -> "int"
; phkResult : HKEY* out -> "intptr"

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

var (
	clusapi = windows.NewLazySystemDLL("CLUSAPI.dll")
	procClusterRegOpenKey = clusapi.NewProc("ClusterRegOpenKey")
)

// hKey (HKEY), lpszSubKey (LPCWSTR), samDesired (DWORD), phkResult (HKEY* out)
r1, _, err := procClusterRegOpenKey.Call(
	uintptr(hKey),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpszSubKey))),
	uintptr(samDesired),
	uintptr(phkResult),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function ClusterRegOpenKey(
  hKey: THandle;   // HKEY
  lpszSubKey: PWideChar;   // LPCWSTR
  samDesired: DWORD;   // DWORD
  phkResult: Pointer   // HKEY* out
): Integer; stdcall;
  external 'CLUSAPI.dll' name 'ClusterRegOpenKey';

result := DllCall("CLUSAPI\ClusterRegOpenKey"
    , "Ptr", hKey   ; HKEY
    , "WStr", lpszSubKey   ; LPCWSTR
    , "UInt", samDesired   ; DWORD
    , "Ptr", phkResult   ; HKEY* out
    , "Int")   ; return: INT

●ClusterRegOpenKey(hKey, lpszSubKey, samDesired, phkResult) = DLL("CLUSAPI.dll", "int ClusterRegOpenKey(void*, char*, dword, void*)")
# 呼び出し: ClusterRegOpenKey(hKey, lpszSubKey, samDesired, phkResult)
# hKey : HKEY -> "void*"
# lpszSubKey : LPCWSTR -> "char*"
# samDesired : DWORD -> "dword"
# phkResult : HKEY* 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)。