CreateDirectory2W

// KERNEL32.dll  (Unicode / -W)
#include <windows.h>

HANDLE CreateDirectory2W(
    LPCWSTR lpPathName,
    DWORD dwDesiredAccess,
    DWORD dwShareMode,
    DIRECTORY_FLAGS DirectoryFlags,
    SECURITY_ATTRIBUTES* lpSecurityAttributes   // optional
);

<DllImport("KERNEL32.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function CreateDirectory2W(
    <MarshalAs(UnmanagedType.LPWStr)> lpPathName As String,   ' LPCWSTR
    dwDesiredAccess As UInteger,   ' DWORD
    dwShareMode As UInteger,   ' DWORD
    DirectoryFlags As Integer,   ' DIRECTORY_FLAGS
    lpSecurityAttributes As IntPtr   ' SECURITY_ATTRIBUTES* optional
) As IntPtr
End Function

' lpPathName : LPCWSTR
' dwDesiredAccess : DWORD
' dwShareMode : DWORD
' DirectoryFlags : DIRECTORY_FLAGS
' lpSecurityAttributes : SECURITY_ATTRIBUTES* optional
Declare PtrSafe Function CreateDirectory2W Lib "kernel32" ( _
    ByVal lpPathName As LongPtr, _
    ByVal dwDesiredAccess As Long, _
    ByVal dwShareMode As Long, _
    ByVal DirectoryFlags As Long, _
    ByVal lpSecurityAttributes As LongPtr) As LongPtr
' Unicode(W): 文字列は ByVal As LongPtr とし StrPtr(unicodeStr) を渡す
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

CreateDirectory2W = ctypes.windll.kernel32.CreateDirectory2W
CreateDirectory2W.restype = ctypes.c_void_p
CreateDirectory2W.argtypes = [
    wintypes.LPCWSTR,  # lpPathName : LPCWSTR
    wintypes.DWORD,  # dwDesiredAccess : DWORD
    wintypes.DWORD,  # dwShareMode : DWORD
    ctypes.c_int,  # DirectoryFlags : DIRECTORY_FLAGS
    ctypes.c_void_p,  # lpSecurityAttributes : SECURITY_ATTRIBUTES* optional
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
CreateDirectory2W = Fiddle::Function.new(
  lib['CreateDirectory2W'],
  [
    Fiddle::TYPE_VOIDP,  # lpPathName : LPCWSTR
    -Fiddle::TYPE_INT,  # dwDesiredAccess : DWORD
    -Fiddle::TYPE_INT,  # dwShareMode : DWORD
    Fiddle::TYPE_INT,  # DirectoryFlags : DIRECTORY_FLAGS
    Fiddle::TYPE_VOIDP,  # lpSecurityAttributes : SECURITY_ATTRIBUTES* optional
  ],
  Fiddle::TYPE_VOIDP)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "kernel32")]
extern "system" {
    fn CreateDirectory2W(
        lpPathName: *const u16,  // LPCWSTR
        dwDesiredAccess: u32,  // DWORD
        dwShareMode: u32,  // DWORD
        DirectoryFlags: i32,  // DIRECTORY_FLAGS
        lpSecurityAttributes: *mut SECURITY_ATTRIBUTES  // SECURITY_ATTRIBUTES* optional
    ) -> *mut core::ffi::c_void;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("KERNEL32.dll", CharSet = CharSet.Unicode)]
public static extern IntPtr CreateDirectory2W([MarshalAs(UnmanagedType.LPWStr)] string lpPathName, uint dwDesiredAccess, uint dwShareMode, int DirectoryFlags, IntPtr lpSecurityAttributes);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_CreateDirectory2W' -Namespace Win32 -PassThru
# $api::CreateDirectory2W(lpPathName, dwDesiredAccess, dwShareMode, DirectoryFlags, lpSecurityAttributes)

#uselib "KERNEL32.dll"
#func global CreateDirectory2W "CreateDirectory2W" wptr, wptr, wptr, wptr, wptr
; CreateDirectory2W lpPathName, dwDesiredAccess, dwShareMode, DirectoryFlags, varptr(lpSecurityAttributes)   ; 戻り値は stat
; lpPathName : LPCWSTR -> "wptr"
; dwDesiredAccess : DWORD -> "wptr"
; dwShareMode : DWORD -> "wptr"
; DirectoryFlags : DIRECTORY_FLAGS -> "wptr"
; lpSecurityAttributes : SECURITY_ATTRIBUTES* optional -> "wptr"
; ※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 "KERNEL32.dll"
#cfunc global CreateDirectory2W "CreateDirectory2W" wstr, int, int, int, var
; res = CreateDirectory2W(lpPathName, dwDesiredAccess, dwShareMode, DirectoryFlags, lpSecurityAttributes)
; lpPathName : LPCWSTR -> "wstr"
; dwDesiredAccess : DWORD -> "int"
; dwShareMode : DWORD -> "int"
; DirectoryFlags : DIRECTORY_FLAGS -> "int"
; lpSecurityAttributes : SECURITY_ATTRIBUTES* optional -> "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。

; HANDLE CreateDirectory2W(LPCWSTR lpPathName, DWORD dwDesiredAccess, DWORD dwShareMode, DIRECTORY_FLAGS DirectoryFlags, SECURITY_ATTRIBUTES* lpSecurityAttributes)
#uselib "KERNEL32.dll"
#cfunc global CreateDirectory2W "CreateDirectory2W" wstr, int, int, int, var
; res = CreateDirectory2W(lpPathName, dwDesiredAccess, dwShareMode, DirectoryFlags, lpSecurityAttributes)
; lpPathName : LPCWSTR -> "wstr"
; dwDesiredAccess : DWORD -> "int"
; dwShareMode : DWORD -> "int"
; DirectoryFlags : DIRECTORY_FLAGS -> "int"
; lpSecurityAttributes : SECURITY_ATTRIBUTES* optional -> "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 (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	procCreateDirectory2W = kernel32.NewProc("CreateDirectory2W")
)

// lpPathName (LPCWSTR), dwDesiredAccess (DWORD), dwShareMode (DWORD), DirectoryFlags (DIRECTORY_FLAGS), lpSecurityAttributes (SECURITY_ATTRIBUTES* optional)
r1, _, err := procCreateDirectory2W.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpPathName))),
	uintptr(dwDesiredAccess),
	uintptr(dwShareMode),
	uintptr(DirectoryFlags),
	uintptr(lpSecurityAttributes),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HANDLE

function CreateDirectory2W(
  lpPathName: PWideChar;   // LPCWSTR
  dwDesiredAccess: DWORD;   // DWORD
  dwShareMode: DWORD;   // DWORD
  DirectoryFlags: Integer;   // DIRECTORY_FLAGS
  lpSecurityAttributes: Pointer   // SECURITY_ATTRIBUTES* optional
): THandle; stdcall;
  external 'KERNEL32.dll' name 'CreateDirectory2W';

result := DllCall("KERNEL32\CreateDirectory2W"
    , "WStr", lpPathName   ; LPCWSTR
    , "UInt", dwDesiredAccess   ; DWORD
    , "UInt", dwShareMode   ; DWORD
    , "Int", DirectoryFlags   ; DIRECTORY_FLAGS
    , "Ptr", lpSecurityAttributes   ; SECURITY_ATTRIBUTES* optional
    , "Ptr")   ; return: HANDLE

●CreateDirectory2W(lpPathName, dwDesiredAccess, dwShareMode, DirectoryFlags, lpSecurityAttributes) = DLL("KERNEL32.dll", "void* CreateDirectory2W(char*, dword, dword, int, void*)")
# 呼び出し: CreateDirectory2W(lpPathName, dwDesiredAccess, dwShareMode, DirectoryFlags, lpSecurityAttributes)
# lpPathName : LPCWSTR -> "char*"
# dwDesiredAccess : DWORD -> "dword"
# dwShareMode : DWORD -> "dword"
# DirectoryFlags : DIRECTORY_FLAGS -> "int"
# lpSecurityAttributes : SECURITY_ATTRIBUTES* optional -> "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)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。