ResUtilGetDwordValue

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

DWORD ResUtilGetDwordValue(
    HKEY hkeyClusterKey,
    LPCWSTR pszValueName,
    DWORD* pdwOutValue,
    DWORD dwDefaultValue
);

<DllImport("RESUTILS.dll", ExactSpelling:=True)>
Public Shared Function ResUtilGetDwordValue(
    hkeyClusterKey As IntPtr,   ' HKEY
    <MarshalAs(UnmanagedType.LPWStr)> pszValueName As String,   ' LPCWSTR
    <Out> ByRef pdwOutValue As UInteger,   ' DWORD* out
    dwDefaultValue As UInteger   ' DWORD
) As UInteger
End Function

' hkeyClusterKey : HKEY
' pszValueName : LPCWSTR
' pdwOutValue : DWORD* out
' dwDefaultValue : DWORD
Declare PtrSafe Function ResUtilGetDwordValue Lib "resutils" ( _
    ByVal hkeyClusterKey As LongPtr, _
    ByVal pszValueName As LongPtr, _
    ByRef pdwOutValue As Long, _
    ByVal dwDefaultValue As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

ResUtilGetDwordValue = ctypes.windll.resutils.ResUtilGetDwordValue
ResUtilGetDwordValue.restype = wintypes.DWORD
ResUtilGetDwordValue.argtypes = [
    wintypes.HANDLE,  # hkeyClusterKey : HKEY
    wintypes.LPCWSTR,  # pszValueName : LPCWSTR
    ctypes.POINTER(wintypes.DWORD),  # pdwOutValue : DWORD* out
    wintypes.DWORD,  # dwDefaultValue : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('RESUTILS.dll')
ResUtilGetDwordValue = Fiddle::Function.new(
  lib['ResUtilGetDwordValue'],
  [
    Fiddle::TYPE_VOIDP,  # hkeyClusterKey : HKEY
    Fiddle::TYPE_VOIDP,  # pszValueName : LPCWSTR
    Fiddle::TYPE_VOIDP,  # pdwOutValue : DWORD* out
    -Fiddle::TYPE_INT,  # dwDefaultValue : DWORD
  ],
  -Fiddle::TYPE_INT)

#[link(name = "resutils")]
extern "system" {
    fn ResUtilGetDwordValue(
        hkeyClusterKey: *mut core::ffi::c_void,  // HKEY
        pszValueName: *const u16,  // LPCWSTR
        pdwOutValue: *mut u32,  // DWORD* out
        dwDefaultValue: u32  // DWORD
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("RESUTILS.dll")]
public static extern uint ResUtilGetDwordValue(IntPtr hkeyClusterKey, [MarshalAs(UnmanagedType.LPWStr)] string pszValueName, out uint pdwOutValue, uint dwDefaultValue);
"@
$api = Add-Type -MemberDefinition $sig -Name 'RESUTILS_ResUtilGetDwordValue' -Namespace Win32 -PassThru
# $api::ResUtilGetDwordValue(hkeyClusterKey, pszValueName, pdwOutValue, dwDefaultValue)

#uselib "RESUTILS.dll"
#func global ResUtilGetDwordValue "ResUtilGetDwordValue" sptr, sptr, sptr, sptr
; ResUtilGetDwordValue hkeyClusterKey, pszValueName, varptr(pdwOutValue), dwDefaultValue   ; 戻り値は stat
; hkeyClusterKey : HKEY -> "sptr"
; pszValueName : LPCWSTR -> "sptr"
; pdwOutValue : DWORD* out -> "sptr"
; dwDefaultValue : DWORD -> "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 "RESUTILS.dll"
#cfunc global ResUtilGetDwordValue "ResUtilGetDwordValue" sptr, wstr, var, int
; res = ResUtilGetDwordValue(hkeyClusterKey, pszValueName, pdwOutValue, dwDefaultValue)
; hkeyClusterKey : HKEY -> "sptr"
; pszValueName : LPCWSTR -> "wstr"
; pdwOutValue : DWORD* out -> "var"
; dwDefaultValue : DWORD -> "int"
; ※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。

; DWORD ResUtilGetDwordValue(HKEY hkeyClusterKey, LPCWSTR pszValueName, DWORD* pdwOutValue, DWORD dwDefaultValue)
#uselib "RESUTILS.dll"
#cfunc global ResUtilGetDwordValue "ResUtilGetDwordValue" intptr, wstr, var, int
; res = ResUtilGetDwordValue(hkeyClusterKey, pszValueName, pdwOutValue, dwDefaultValue)
; hkeyClusterKey : HKEY -> "intptr"
; pszValueName : LPCWSTR -> "wstr"
; pdwOutValue : DWORD* out -> "var"
; dwDefaultValue : DWORD -> "int"
; ※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 (
	resutils = windows.NewLazySystemDLL("RESUTILS.dll")
	procResUtilGetDwordValue = resutils.NewProc("ResUtilGetDwordValue")
)

// hkeyClusterKey (HKEY), pszValueName (LPCWSTR), pdwOutValue (DWORD* out), dwDefaultValue (DWORD)
r1, _, err := procResUtilGetDwordValue.Call(
	uintptr(hkeyClusterKey),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pszValueName))),
	uintptr(pdwOutValue),
	uintptr(dwDefaultValue),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function ResUtilGetDwordValue(
  hkeyClusterKey: THandle;   // HKEY
  pszValueName: PWideChar;   // LPCWSTR
  pdwOutValue: Pointer;   // DWORD* out
  dwDefaultValue: DWORD   // DWORD
): DWORD; stdcall;
  external 'RESUTILS.dll' name 'ResUtilGetDwordValue';

result := DllCall("RESUTILS\ResUtilGetDwordValue"
    , "Ptr", hkeyClusterKey   ; HKEY
    , "WStr", pszValueName   ; LPCWSTR
    , "Ptr", pdwOutValue   ; DWORD* out
    , "UInt", dwDefaultValue   ; DWORD
    , "UInt")   ; return: DWORD

●ResUtilGetDwordValue(hkeyClusterKey, pszValueName, pdwOutValue, dwDefaultValue) = DLL("RESUTILS.dll", "dword ResUtilGetDwordValue(void*, char*, void*, dword)")
# 呼び出し: ResUtilGetDwordValue(hkeyClusterKey, pszValueName, pdwOutValue, dwDefaultValue)
# hkeyClusterKey : HKEY -> "void*"
# pszValueName : LPCWSTR -> "char*"
# pdwOutValue : DWORD* out -> "void*"
# dwDefaultValue : 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)。