RegQueryMultipleValuesA

// ADVAPI32.dll  (ANSI / -A)
#include <windows.h>

WIN32_ERROR RegQueryMultipleValuesA(
    HKEY hKey,
    VALENTA* val_list,
    DWORD num_vals,
    LPSTR lpValueBuf,   // optional
    DWORD* ldwTotsize   // optional
);

<DllImport("ADVAPI32.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function RegQueryMultipleValuesA(
    hKey As IntPtr,   ' HKEY
    val_list As IntPtr,   ' VALENTA* out
    num_vals As UInteger,   ' DWORD
    <MarshalAs(UnmanagedType.LPStr)> lpValueBuf As System.Text.StringBuilder,   ' LPSTR optional, out
    ldwTotsize As IntPtr   ' DWORD* optional, in/out
) As UInteger
End Function

' hKey : HKEY
' val_list : VALENTA* out
' num_vals : DWORD
' lpValueBuf : LPSTR optional, out
' ldwTotsize : DWORD* optional, in/out
Declare PtrSafe Function RegQueryMultipleValuesA Lib "advapi32" ( _
    ByVal hKey As LongPtr, _
    ByVal val_list As LongPtr, _
    ByVal num_vals As Long, _
    ByVal lpValueBuf As String, _
    ByVal ldwTotsize 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

RegQueryMultipleValuesA = ctypes.windll.advapi32.RegQueryMultipleValuesA
RegQueryMultipleValuesA.restype = wintypes.DWORD
RegQueryMultipleValuesA.argtypes = [
    wintypes.HANDLE,  # hKey : HKEY
    ctypes.c_void_p,  # val_list : VALENTA* out
    wintypes.DWORD,  # num_vals : DWORD
    wintypes.LPSTR,  # lpValueBuf : LPSTR optional, out
    ctypes.POINTER(wintypes.DWORD),  # ldwTotsize : DWORD* optional, in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ADVAPI32.dll')
RegQueryMultipleValuesA = Fiddle::Function.new(
  lib['RegQueryMultipleValuesA'],
  [
    Fiddle::TYPE_VOIDP,  # hKey : HKEY
    Fiddle::TYPE_VOIDP,  # val_list : VALENTA* out
    -Fiddle::TYPE_INT,  # num_vals : DWORD
    Fiddle::TYPE_VOIDP,  # lpValueBuf : LPSTR optional, out
    Fiddle::TYPE_VOIDP,  # ldwTotsize : DWORD* optional, in/out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "advapi32")]
extern "system" {
    fn RegQueryMultipleValuesA(
        hKey: *mut core::ffi::c_void,  // HKEY
        val_list: *mut VALENTA,  // VALENTA* out
        num_vals: u32,  // DWORD
        lpValueBuf: *mut u8,  // LPSTR optional, out
        ldwTotsize: *mut u32  // DWORD* optional, in/out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("ADVAPI32.dll", CharSet = CharSet.Ansi)]
public static extern uint RegQueryMultipleValuesA(IntPtr hKey, IntPtr val_list, uint num_vals, [MarshalAs(UnmanagedType.LPStr)] System.Text.StringBuilder lpValueBuf, IntPtr ldwTotsize);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ADVAPI32_RegQueryMultipleValuesA' -Namespace Win32 -PassThru
# $api::RegQueryMultipleValuesA(hKey, val_list, num_vals, lpValueBuf, ldwTotsize)

#uselib "ADVAPI32.dll"
#func global RegQueryMultipleValuesA "RegQueryMultipleValuesA" sptr, sptr, sptr, sptr, sptr
; RegQueryMultipleValuesA hKey, varptr(val_list), num_vals, varptr(lpValueBuf), varptr(ldwTotsize)   ; 戻り値は stat
; hKey : HKEY -> "sptr"
; val_list : VALENTA* out -> "sptr"
; num_vals : DWORD -> "sptr"
; lpValueBuf : LPSTR optional, out -> "sptr"
; ldwTotsize : DWORD* optional, in/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 "ADVAPI32.dll"
#cfunc global RegQueryMultipleValuesA "RegQueryMultipleValuesA" sptr, var, int, var, var
; res = RegQueryMultipleValuesA(hKey, val_list, num_vals, lpValueBuf, ldwTotsize)
; hKey : HKEY -> "sptr"
; val_list : VALENTA* out -> "var"
; num_vals : DWORD -> "int"
; lpValueBuf : LPSTR optional, out -> "var"
; ldwTotsize : DWORD* optional, in/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。

; WIN32_ERROR RegQueryMultipleValuesA(HKEY hKey, VALENTA* val_list, DWORD num_vals, LPSTR lpValueBuf, DWORD* ldwTotsize)
#uselib "ADVAPI32.dll"
#cfunc global RegQueryMultipleValuesA "RegQueryMultipleValuesA" intptr, var, int, var, var
; res = RegQueryMultipleValuesA(hKey, val_list, num_vals, lpValueBuf, ldwTotsize)
; hKey : HKEY -> "intptr"
; val_list : VALENTA* out -> "var"
; num_vals : DWORD -> "int"
; lpValueBuf : LPSTR optional, out -> "var"
; ldwTotsize : DWORD* optional, in/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 (
	advapi32 = windows.NewLazySystemDLL("ADVAPI32.dll")
	procRegQueryMultipleValuesA = advapi32.NewProc("RegQueryMultipleValuesA")
)

// hKey (HKEY), val_list (VALENTA* out), num_vals (DWORD), lpValueBuf (LPSTR optional, out), ldwTotsize (DWORD* optional, in/out)
r1, _, err := procRegQueryMultipleValuesA.Call(
	uintptr(hKey),
	uintptr(val_list),
	uintptr(num_vals),
	uintptr(lpValueBuf),
	uintptr(ldwTotsize),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // WIN32_ERROR

function RegQueryMultipleValuesA(
  hKey: THandle;   // HKEY
  val_list: Pointer;   // VALENTA* out
  num_vals: DWORD;   // DWORD
  lpValueBuf: PAnsiChar;   // LPSTR optional, out
  ldwTotsize: Pointer   // DWORD* optional, in/out
): DWORD; stdcall;
  external 'ADVAPI32.dll' name 'RegQueryMultipleValuesA';

result := DllCall("ADVAPI32\RegQueryMultipleValuesA"
    , "Ptr", hKey   ; HKEY
    , "Ptr", val_list   ; VALENTA* out
    , "UInt", num_vals   ; DWORD
    , "Ptr", lpValueBuf   ; LPSTR optional, out
    , "Ptr", ldwTotsize   ; DWORD* optional, in/out
    , "UInt")   ; return: WIN32_ERROR

●RegQueryMultipleValuesA(hKey, val_list, num_vals, lpValueBuf, ldwTotsize) = DLL("ADVAPI32.dll", "dword RegQueryMultipleValuesA(void*, void*, dword, char*, void*)")
# 呼び出し: RegQueryMultipleValuesA(hKey, val_list, num_vals, lpValueBuf, ldwTotsize)
# hKey : HKEY -> "void*"
# val_list : VALENTA* out -> "void*"
# num_vals : DWORD -> "dword"
# lpValueBuf : LPSTR optional, out -> "char*"
# ldwTotsize : DWORD* optional, in/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)。