ResUtilEnumPrivateProperties

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

DWORD ResUtilEnumPrivateProperties(
    HKEY hkeyClusterKey,
    LPWSTR pszOutProperties,
    DWORD cbOutPropertiesSize,
    DWORD* pcbBytesReturned,
    DWORD* pcbRequired
);

<DllImport("RESUTILS.dll", ExactSpelling:=True)>
Public Shared Function ResUtilEnumPrivateProperties(
    hkeyClusterKey As IntPtr,   ' HKEY
    <MarshalAs(UnmanagedType.LPWStr)> pszOutProperties As System.Text.StringBuilder,   ' LPWSTR out
    cbOutPropertiesSize As UInteger,   ' DWORD
    <Out> ByRef pcbBytesReturned As UInteger,   ' DWORD* out
    <Out> ByRef pcbRequired As UInteger   ' DWORD* out
) As UInteger
End Function

' hkeyClusterKey : HKEY
' pszOutProperties : LPWSTR out
' cbOutPropertiesSize : DWORD
' pcbBytesReturned : DWORD* out
' pcbRequired : DWORD* out
Declare PtrSafe Function ResUtilEnumPrivateProperties Lib "resutils" ( _
    ByVal hkeyClusterKey As LongPtr, _
    ByVal pszOutProperties As LongPtr, _
    ByVal cbOutPropertiesSize As Long, _
    ByRef pcbBytesReturned As Long, _
    ByRef pcbRequired 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

ResUtilEnumPrivateProperties = ctypes.windll.resutils.ResUtilEnumPrivateProperties
ResUtilEnumPrivateProperties.restype = wintypes.DWORD
ResUtilEnumPrivateProperties.argtypes = [
    wintypes.HANDLE,  # hkeyClusterKey : HKEY
    wintypes.LPWSTR,  # pszOutProperties : LPWSTR out
    wintypes.DWORD,  # cbOutPropertiesSize : DWORD
    ctypes.POINTER(wintypes.DWORD),  # pcbBytesReturned : DWORD* out
    ctypes.POINTER(wintypes.DWORD),  # pcbRequired : DWORD* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('RESUTILS.dll')
ResUtilEnumPrivateProperties = Fiddle::Function.new(
  lib['ResUtilEnumPrivateProperties'],
  [
    Fiddle::TYPE_VOIDP,  # hkeyClusterKey : HKEY
    Fiddle::TYPE_VOIDP,  # pszOutProperties : LPWSTR out
    -Fiddle::TYPE_INT,  # cbOutPropertiesSize : DWORD
    Fiddle::TYPE_VOIDP,  # pcbBytesReturned : DWORD* out
    Fiddle::TYPE_VOIDP,  # pcbRequired : DWORD* out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "resutils")]
extern "system" {
    fn ResUtilEnumPrivateProperties(
        hkeyClusterKey: *mut core::ffi::c_void,  // HKEY
        pszOutProperties: *mut u16,  // LPWSTR out
        cbOutPropertiesSize: u32,  // DWORD
        pcbBytesReturned: *mut u32,  // DWORD* out
        pcbRequired: *mut u32  // DWORD* out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("RESUTILS.dll")]
public static extern uint ResUtilEnumPrivateProperties(IntPtr hkeyClusterKey, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder pszOutProperties, uint cbOutPropertiesSize, out uint pcbBytesReturned, out uint pcbRequired);
"@
$api = Add-Type -MemberDefinition $sig -Name 'RESUTILS_ResUtilEnumPrivateProperties' -Namespace Win32 -PassThru
# $api::ResUtilEnumPrivateProperties(hkeyClusterKey, pszOutProperties, cbOutPropertiesSize, pcbBytesReturned, pcbRequired)

#uselib "RESUTILS.dll"
#func global ResUtilEnumPrivateProperties "ResUtilEnumPrivateProperties" sptr, sptr, sptr, sptr, sptr
; ResUtilEnumPrivateProperties hkeyClusterKey, varptr(pszOutProperties), cbOutPropertiesSize, varptr(pcbBytesReturned), varptr(pcbRequired)   ; 戻り値は stat
; hkeyClusterKey : HKEY -> "sptr"
; pszOutProperties : LPWSTR out -> "sptr"
; cbOutPropertiesSize : DWORD -> "sptr"
; pcbBytesReturned : DWORD* out -> "sptr"
; pcbRequired : DWORD* 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 "RESUTILS.dll"
#cfunc global ResUtilEnumPrivateProperties "ResUtilEnumPrivateProperties" sptr, var, int, var, var
; res = ResUtilEnumPrivateProperties(hkeyClusterKey, pszOutProperties, cbOutPropertiesSize, pcbBytesReturned, pcbRequired)
; hkeyClusterKey : HKEY -> "sptr"
; pszOutProperties : LPWSTR out -> "var"
; cbOutPropertiesSize : DWORD -> "int"
; pcbBytesReturned : DWORD* out -> "var"
; pcbRequired : DWORD* out -> "var"
; ※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 ResUtilEnumPrivateProperties(HKEY hkeyClusterKey, LPWSTR pszOutProperties, DWORD cbOutPropertiesSize, DWORD* pcbBytesReturned, DWORD* pcbRequired)
#uselib "RESUTILS.dll"
#cfunc global ResUtilEnumPrivateProperties "ResUtilEnumPrivateProperties" intptr, var, int, var, var
; res = ResUtilEnumPrivateProperties(hkeyClusterKey, pszOutProperties, cbOutPropertiesSize, pcbBytesReturned, pcbRequired)
; hkeyClusterKey : HKEY -> "intptr"
; pszOutProperties : LPWSTR out -> "var"
; cbOutPropertiesSize : DWORD -> "int"
; pcbBytesReturned : DWORD* out -> "var"
; pcbRequired : DWORD* out -> "var"
; ※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")
	procResUtilEnumPrivateProperties = resutils.NewProc("ResUtilEnumPrivateProperties")
)

// hkeyClusterKey (HKEY), pszOutProperties (LPWSTR out), cbOutPropertiesSize (DWORD), pcbBytesReturned (DWORD* out), pcbRequired (DWORD* out)
r1, _, err := procResUtilEnumPrivateProperties.Call(
	uintptr(hkeyClusterKey),
	uintptr(pszOutProperties),
	uintptr(cbOutPropertiesSize),
	uintptr(pcbBytesReturned),
	uintptr(pcbRequired),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function ResUtilEnumPrivateProperties(
  hkeyClusterKey: THandle;   // HKEY
  pszOutProperties: PWideChar;   // LPWSTR out
  cbOutPropertiesSize: DWORD;   // DWORD
  pcbBytesReturned: Pointer;   // DWORD* out
  pcbRequired: Pointer   // DWORD* out
): DWORD; stdcall;
  external 'RESUTILS.dll' name 'ResUtilEnumPrivateProperties';

result := DllCall("RESUTILS\ResUtilEnumPrivateProperties"
    , "Ptr", hkeyClusterKey   ; HKEY
    , "Ptr", pszOutProperties   ; LPWSTR out
    , "UInt", cbOutPropertiesSize   ; DWORD
    , "Ptr", pcbBytesReturned   ; DWORD* out
    , "Ptr", pcbRequired   ; DWORD* out
    , "UInt")   ; return: DWORD

●ResUtilEnumPrivateProperties(hkeyClusterKey, pszOutProperties, cbOutPropertiesSize, pcbBytesReturned, pcbRequired) = DLL("RESUTILS.dll", "dword ResUtilEnumPrivateProperties(void*, char*, dword, void*, void*)")
# 呼び出し: ResUtilEnumPrivateProperties(hkeyClusterKey, pszOutProperties, cbOutPropertiesSize, pcbBytesReturned, pcbRequired)
# hkeyClusterKey : HKEY -> "void*"
# pszOutProperties : LPWSTR out -> "char*"
# cbOutPropertiesSize : DWORD -> "dword"
# pcbBytesReturned : DWORD* out -> "void*"
# pcbRequired : DWORD* 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)。