SfcIsKeyProtected

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

BOOL SfcIsKeyProtected(
    HKEY KeyHandle,
    LPCWSTR SubKeyName,
    DWORD KeySam
);

<DllImport("sfc.dll", ExactSpelling:=True)>
Public Shared Function SfcIsKeyProtected(
    KeyHandle As IntPtr,   ' HKEY
    <MarshalAs(UnmanagedType.LPWStr)> SubKeyName As String,   ' LPCWSTR
    KeySam As UInteger   ' DWORD
) As Boolean
End Function

' KeyHandle : HKEY
' SubKeyName : LPCWSTR
' KeySam : DWORD
Declare PtrSafe Function SfcIsKeyProtected Lib "sfc" ( _
    ByVal KeyHandle As LongPtr, _
    ByVal SubKeyName As LongPtr, _
    ByVal KeySam 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

SfcIsKeyProtected = ctypes.windll.sfc.SfcIsKeyProtected
SfcIsKeyProtected.restype = wintypes.BOOL
SfcIsKeyProtected.argtypes = [
    wintypes.HANDLE,  # KeyHandle : HKEY
    wintypes.LPCWSTR,  # SubKeyName : LPCWSTR
    wintypes.DWORD,  # KeySam : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('sfc.dll')
SfcIsKeyProtected = Fiddle::Function.new(
  lib['SfcIsKeyProtected'],
  [
    Fiddle::TYPE_VOIDP,  # KeyHandle : HKEY
    Fiddle::TYPE_VOIDP,  # SubKeyName : LPCWSTR
    -Fiddle::TYPE_INT,  # KeySam : DWORD
  ],
  Fiddle::TYPE_INT)

#[link(name = "sfc")]
extern "system" {
    fn SfcIsKeyProtected(
        KeyHandle: *mut core::ffi::c_void,  // HKEY
        SubKeyName: *const u16,  // LPCWSTR
        KeySam: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("sfc.dll")]
public static extern bool SfcIsKeyProtected(IntPtr KeyHandle, [MarshalAs(UnmanagedType.LPWStr)] string SubKeyName, uint KeySam);
"@
$api = Add-Type -MemberDefinition $sig -Name 'sfc_SfcIsKeyProtected' -Namespace Win32 -PassThru
# $api::SfcIsKeyProtected(KeyHandle, SubKeyName, KeySam)

#uselib "sfc.dll"
#func global SfcIsKeyProtected "SfcIsKeyProtected" sptr, sptr, sptr
; SfcIsKeyProtected KeyHandle, SubKeyName, KeySam   ; 戻り値は stat
; KeyHandle : HKEY -> "sptr"
; SubKeyName : LPCWSTR -> "sptr"
; KeySam : 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 "sfc.dll"
#cfunc global SfcIsKeyProtected "SfcIsKeyProtected" sptr, wstr, int
; res = SfcIsKeyProtected(KeyHandle, SubKeyName, KeySam)
; KeyHandle : HKEY -> "sptr"
; SubKeyName : LPCWSTR -> "wstr"
; KeySam : DWORD -> "int"

; BOOL SfcIsKeyProtected(HKEY KeyHandle, LPCWSTR SubKeyName, DWORD KeySam)
#uselib "sfc.dll"
#cfunc global SfcIsKeyProtected "SfcIsKeyProtected" intptr, wstr, int
; res = SfcIsKeyProtected(KeyHandle, SubKeyName, KeySam)
; KeyHandle : HKEY -> "intptr"
; SubKeyName : LPCWSTR -> "wstr"
; KeySam : DWORD -> "int"

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

var (
	sfc = windows.NewLazySystemDLL("sfc.dll")
	procSfcIsKeyProtected = sfc.NewProc("SfcIsKeyProtected")
)

// KeyHandle (HKEY), SubKeyName (LPCWSTR), KeySam (DWORD)
r1, _, err := procSfcIsKeyProtected.Call(
	uintptr(KeyHandle),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(SubKeyName))),
	uintptr(KeySam),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function SfcIsKeyProtected(
  KeyHandle: THandle;   // HKEY
  SubKeyName: PWideChar;   // LPCWSTR
  KeySam: DWORD   // DWORD
): BOOL; stdcall;
  external 'sfc.dll' name 'SfcIsKeyProtected';

result := DllCall("sfc\SfcIsKeyProtected"
    , "Ptr", KeyHandle   ; HKEY
    , "WStr", SubKeyName   ; LPCWSTR
    , "UInt", KeySam   ; DWORD
    , "Int")   ; return: BOOL

●SfcIsKeyProtected(KeyHandle, SubKeyName, KeySam) = DLL("sfc.dll", "bool SfcIsKeyProtected(void*, char*, dword)")
# 呼び出し: SfcIsKeyProtected(KeyHandle, SubKeyName, KeySam)
# KeyHandle : HKEY -> "void*"
# SubKeyName : LPCWSTR -> "char*"
# KeySam : 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)。