RegRestoreKeyA

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

WIN32_ERROR RegRestoreKeyA(
    HKEY hKey,
    LPCSTR lpFile,
    DWORD dwFlags
);

<DllImport("ADVAPI32.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function RegRestoreKeyA(
    hKey As IntPtr,   ' HKEY
    <MarshalAs(UnmanagedType.LPStr)> lpFile As String,   ' LPCSTR
    dwFlags As UInteger   ' DWORD
) As UInteger
End Function

' hKey : HKEY
' lpFile : LPCSTR
' dwFlags : DWORD
Declare PtrSafe Function RegRestoreKeyA Lib "advapi32" ( _
    ByVal hKey As LongPtr, _
    ByVal lpFile As String, _
    ByVal dwFlags 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

RegRestoreKeyA = ctypes.windll.advapi32.RegRestoreKeyA
RegRestoreKeyA.restype = wintypes.DWORD
RegRestoreKeyA.argtypes = [
    wintypes.HANDLE,  # hKey : HKEY
    wintypes.LPCSTR,  # lpFile : LPCSTR
    wintypes.DWORD,  # dwFlags : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ADVAPI32.dll')
RegRestoreKeyA = Fiddle::Function.new(
  lib['RegRestoreKeyA'],
  [
    Fiddle::TYPE_VOIDP,  # hKey : HKEY
    Fiddle::TYPE_VOIDP,  # lpFile : LPCSTR
    -Fiddle::TYPE_INT,  # dwFlags : DWORD
  ],
  -Fiddle::TYPE_INT)

#[link(name = "advapi32")]
extern "system" {
    fn RegRestoreKeyA(
        hKey: *mut core::ffi::c_void,  // HKEY
        lpFile: *const u8,  // LPCSTR
        dwFlags: u32  // DWORD
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("ADVAPI32.dll", CharSet = CharSet.Ansi)]
public static extern uint RegRestoreKeyA(IntPtr hKey, [MarshalAs(UnmanagedType.LPStr)] string lpFile, uint dwFlags);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ADVAPI32_RegRestoreKeyA' -Namespace Win32 -PassThru
# $api::RegRestoreKeyA(hKey, lpFile, dwFlags)

#uselib "ADVAPI32.dll"
#func global RegRestoreKeyA "RegRestoreKeyA" sptr, sptr, sptr
; RegRestoreKeyA hKey, lpFile, dwFlags   ; 戻り値は stat
; hKey : HKEY -> "sptr"
; lpFile : LPCSTR -> "sptr"
; dwFlags : 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 "ADVAPI32.dll"
#cfunc global RegRestoreKeyA "RegRestoreKeyA" sptr, str, int
; res = RegRestoreKeyA(hKey, lpFile, dwFlags)
; hKey : HKEY -> "sptr"
; lpFile : LPCSTR -> "str"
; dwFlags : DWORD -> "int"

; WIN32_ERROR RegRestoreKeyA(HKEY hKey, LPCSTR lpFile, DWORD dwFlags)
#uselib "ADVAPI32.dll"
#cfunc global RegRestoreKeyA "RegRestoreKeyA" intptr, str, int
; res = RegRestoreKeyA(hKey, lpFile, dwFlags)
; hKey : HKEY -> "intptr"
; lpFile : LPCSTR -> "str"
; dwFlags : DWORD -> "int"

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

var (
	advapi32 = windows.NewLazySystemDLL("ADVAPI32.dll")
	procRegRestoreKeyA = advapi32.NewProc("RegRestoreKeyA")
)

// hKey (HKEY), lpFile (LPCSTR), dwFlags (DWORD)
r1, _, err := procRegRestoreKeyA.Call(
	uintptr(hKey),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(lpFile))),
	uintptr(dwFlags),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // WIN32_ERROR

function RegRestoreKeyA(
  hKey: THandle;   // HKEY
  lpFile: PAnsiChar;   // LPCSTR
  dwFlags: DWORD   // DWORD
): DWORD; stdcall;
  external 'ADVAPI32.dll' name 'RegRestoreKeyA';

result := DllCall("ADVAPI32\RegRestoreKeyA"
    , "Ptr", hKey   ; HKEY
    , "AStr", lpFile   ; LPCSTR
    , "UInt", dwFlags   ; DWORD
    , "UInt")   ; return: WIN32_ERROR

●RegRestoreKeyA(hKey, lpFile, dwFlags) = DLL("ADVAPI32.dll", "dword RegRestoreKeyA(void*, char*, dword)")
# 呼び出し: RegRestoreKeyA(hKey, lpFile, dwFlags)
# hKey : HKEY -> "void*"
# lpFile : LPCSTR -> "char*"
# dwFlags : 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)。