RegRenameKey

// ADVAPI32.dll
#include <windows.h>

WIN32_ERROR RegRenameKey(
    HKEY hKey,
    LPCWSTR lpSubKeyName,   // optional
    LPCWSTR lpNewKeyName
);

<DllImport("ADVAPI32.dll", ExactSpelling:=True)>
Public Shared Function RegRenameKey(
    hKey As IntPtr,   ' HKEY
    <MarshalAs(UnmanagedType.LPWStr)> lpSubKeyName As String,   ' LPCWSTR optional
    <MarshalAs(UnmanagedType.LPWStr)> lpNewKeyName As String   ' LPCWSTR
) As UInteger
End Function

' hKey : HKEY
' lpSubKeyName : LPCWSTR optional
' lpNewKeyName : LPCWSTR
Declare PtrSafe Function RegRenameKey Lib "advapi32" ( _
    ByVal hKey As LongPtr, _
    ByVal lpSubKeyName As LongPtr, _
    ByVal lpNewKeyName 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

RegRenameKey = ctypes.windll.advapi32.RegRenameKey
RegRenameKey.restype = wintypes.DWORD
RegRenameKey.argtypes = [
    wintypes.HANDLE,  # hKey : HKEY
    wintypes.LPCWSTR,  # lpSubKeyName : LPCWSTR optional
    wintypes.LPCWSTR,  # lpNewKeyName : LPCWSTR
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ADVAPI32.dll')
RegRenameKey = Fiddle::Function.new(
  lib['RegRenameKey'],
  [
    Fiddle::TYPE_VOIDP,  # hKey : HKEY
    Fiddle::TYPE_VOIDP,  # lpSubKeyName : LPCWSTR optional
    Fiddle::TYPE_VOIDP,  # lpNewKeyName : LPCWSTR
  ],
  -Fiddle::TYPE_INT)

#[link(name = "advapi32")]
extern "system" {
    fn RegRenameKey(
        hKey: *mut core::ffi::c_void,  // HKEY
        lpSubKeyName: *const u16,  // LPCWSTR optional
        lpNewKeyName: *const u16  // LPCWSTR
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("ADVAPI32.dll")]
public static extern uint RegRenameKey(IntPtr hKey, [MarshalAs(UnmanagedType.LPWStr)] string lpSubKeyName, [MarshalAs(UnmanagedType.LPWStr)] string lpNewKeyName);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ADVAPI32_RegRenameKey' -Namespace Win32 -PassThru
# $api::RegRenameKey(hKey, lpSubKeyName, lpNewKeyName)

#uselib "ADVAPI32.dll"
#func global RegRenameKey "RegRenameKey" sptr, sptr, sptr
; RegRenameKey hKey, lpSubKeyName, lpNewKeyName   ; 戻り値は stat
; hKey : HKEY -> "sptr"
; lpSubKeyName : LPCWSTR optional -> "sptr"
; lpNewKeyName : LPCWSTR -> "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 RegRenameKey "RegRenameKey" sptr, wstr, wstr
; res = RegRenameKey(hKey, lpSubKeyName, lpNewKeyName)
; hKey : HKEY -> "sptr"
; lpSubKeyName : LPCWSTR optional -> "wstr"
; lpNewKeyName : LPCWSTR -> "wstr"

; WIN32_ERROR RegRenameKey(HKEY hKey, LPCWSTR lpSubKeyName, LPCWSTR lpNewKeyName)
#uselib "ADVAPI32.dll"
#cfunc global RegRenameKey "RegRenameKey" intptr, wstr, wstr
; res = RegRenameKey(hKey, lpSubKeyName, lpNewKeyName)
; hKey : HKEY -> "intptr"
; lpSubKeyName : LPCWSTR optional -> "wstr"
; lpNewKeyName : LPCWSTR -> "wstr"

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

var (
	advapi32 = windows.NewLazySystemDLL("ADVAPI32.dll")
	procRegRenameKey = advapi32.NewProc("RegRenameKey")
)

// hKey (HKEY), lpSubKeyName (LPCWSTR optional), lpNewKeyName (LPCWSTR)
r1, _, err := procRegRenameKey.Call(
	uintptr(hKey),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpSubKeyName))),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpNewKeyName))),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // WIN32_ERROR

function RegRenameKey(
  hKey: THandle;   // HKEY
  lpSubKeyName: PWideChar;   // LPCWSTR optional
  lpNewKeyName: PWideChar   // LPCWSTR
): DWORD; stdcall;
  external 'ADVAPI32.dll' name 'RegRenameKey';

result := DllCall("ADVAPI32\RegRenameKey"
    , "Ptr", hKey   ; HKEY
    , "WStr", lpSubKeyName   ; LPCWSTR optional
    , "WStr", lpNewKeyName   ; LPCWSTR
    , "UInt")   ; return: WIN32_ERROR

●RegRenameKey(hKey, lpSubKeyName, lpNewKeyName) = DLL("ADVAPI32.dll", "dword RegRenameKey(void*, char*, char*)")
# 呼び出し: RegRenameKey(hKey, lpSubKeyName, lpNewKeyName)
# hKey : HKEY -> "void*"
# lpSubKeyName : LPCWSTR optional -> "char*"
# lpNewKeyName : LPCWSTR -> "char*"
# 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)。