CreateHardLinkTransactedW

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

BOOL CreateHardLinkTransactedW(
    LPCWSTR lpFileName,
    LPCWSTR lpExistingFileName,
    SECURITY_ATTRIBUTES* lpSecurityAttributes,   // optional
    HANDLE hTransaction
);

<DllImport("KERNEL32.dll", CharSet:=CharSet.Unicode, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function CreateHardLinkTransactedW(
    <MarshalAs(UnmanagedType.LPWStr)> lpFileName As String,   ' LPCWSTR
    <MarshalAs(UnmanagedType.LPWStr)> lpExistingFileName As String,   ' LPCWSTR
    lpSecurityAttributes As IntPtr,   ' SECURITY_ATTRIBUTES* optional
    hTransaction As IntPtr   ' HANDLE
) As Boolean
End Function

' lpFileName : LPCWSTR
' lpExistingFileName : LPCWSTR
' lpSecurityAttributes : SECURITY_ATTRIBUTES* optional
' hTransaction : HANDLE
Declare PtrSafe Function CreateHardLinkTransactedW Lib "kernel32" ( _
    ByVal lpFileName As LongPtr, _
    ByVal lpExistingFileName As LongPtr, _
    ByVal lpSecurityAttributes As LongPtr, _
    ByVal hTransaction As LongPtr) As Long
' 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

CreateHardLinkTransactedW = ctypes.windll.kernel32.CreateHardLinkTransactedW
CreateHardLinkTransactedW.restype = wintypes.BOOL
CreateHardLinkTransactedW.argtypes = [
    wintypes.LPCWSTR,  # lpFileName : LPCWSTR
    wintypes.LPCWSTR,  # lpExistingFileName : LPCWSTR
    ctypes.c_void_p,  # lpSecurityAttributes : SECURITY_ATTRIBUTES* optional
    wintypes.HANDLE,  # hTransaction : HANDLE
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
CreateHardLinkTransactedW = Fiddle::Function.new(
  lib['CreateHardLinkTransactedW'],
  [
    Fiddle::TYPE_VOIDP,  # lpFileName : LPCWSTR
    Fiddle::TYPE_VOIDP,  # lpExistingFileName : LPCWSTR
    Fiddle::TYPE_VOIDP,  # lpSecurityAttributes : SECURITY_ATTRIBUTES* optional
    Fiddle::TYPE_VOIDP,  # hTransaction : HANDLE
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "kernel32")]
extern "system" {
    fn CreateHardLinkTransactedW(
        lpFileName: *const u16,  // LPCWSTR
        lpExistingFileName: *const u16,  // LPCWSTR
        lpSecurityAttributes: *mut SECURITY_ATTRIBUTES,  // SECURITY_ATTRIBUTES* optional
        hTransaction: *mut core::ffi::c_void  // HANDLE
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("KERNEL32.dll", CharSet = CharSet.Unicode, SetLastError = true)]
public static extern bool CreateHardLinkTransactedW([MarshalAs(UnmanagedType.LPWStr)] string lpFileName, [MarshalAs(UnmanagedType.LPWStr)] string lpExistingFileName, IntPtr lpSecurityAttributes, IntPtr hTransaction);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_CreateHardLinkTransactedW' -Namespace Win32 -PassThru
# $api::CreateHardLinkTransactedW(lpFileName, lpExistingFileName, lpSecurityAttributes, hTransaction)

#uselib "KERNEL32.dll"
#func global CreateHardLinkTransactedW "CreateHardLinkTransactedW" wptr, wptr, wptr, wptr
; CreateHardLinkTransactedW lpFileName, lpExistingFileName, varptr(lpSecurityAttributes), hTransaction   ; 戻り値は stat
; lpFileName : LPCWSTR -> "wptr"
; lpExistingFileName : LPCWSTR -> "wptr"
; lpSecurityAttributes : SECURITY_ATTRIBUTES* optional -> "wptr"
; hTransaction : HANDLE -> "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 CreateHardLinkTransactedW "CreateHardLinkTransactedW" wstr, wstr, var, sptr
; res = CreateHardLinkTransactedW(lpFileName, lpExistingFileName, lpSecurityAttributes, hTransaction)
; lpFileName : LPCWSTR -> "wstr"
; lpExistingFileName : LPCWSTR -> "wstr"
; lpSecurityAttributes : SECURITY_ATTRIBUTES* optional -> "var"
; hTransaction : HANDLE -> "sptr"
; ※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。

; BOOL CreateHardLinkTransactedW(LPCWSTR lpFileName, LPCWSTR lpExistingFileName, SECURITY_ATTRIBUTES* lpSecurityAttributes, HANDLE hTransaction)
#uselib "KERNEL32.dll"
#cfunc global CreateHardLinkTransactedW "CreateHardLinkTransactedW" wstr, wstr, var, intptr
; res = CreateHardLinkTransactedW(lpFileName, lpExistingFileName, lpSecurityAttributes, hTransaction)
; lpFileName : LPCWSTR -> "wstr"
; lpExistingFileName : LPCWSTR -> "wstr"
; lpSecurityAttributes : SECURITY_ATTRIBUTES* optional -> "var"
; hTransaction : HANDLE -> "intptr"
; ※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")
	procCreateHardLinkTransactedW = kernel32.NewProc("CreateHardLinkTransactedW")
)

// lpFileName (LPCWSTR), lpExistingFileName (LPCWSTR), lpSecurityAttributes (SECURITY_ATTRIBUTES* optional), hTransaction (HANDLE)
r1, _, err := procCreateHardLinkTransactedW.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpFileName))),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpExistingFileName))),
	uintptr(lpSecurityAttributes),
	uintptr(hTransaction),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function CreateHardLinkTransactedW(
  lpFileName: PWideChar;   // LPCWSTR
  lpExistingFileName: PWideChar;   // LPCWSTR
  lpSecurityAttributes: Pointer;   // SECURITY_ATTRIBUTES* optional
  hTransaction: THandle   // HANDLE
): BOOL; stdcall;
  external 'KERNEL32.dll' name 'CreateHardLinkTransactedW';

result := DllCall("KERNEL32\CreateHardLinkTransactedW"
    , "WStr", lpFileName   ; LPCWSTR
    , "WStr", lpExistingFileName   ; LPCWSTR
    , "Ptr", lpSecurityAttributes   ; SECURITY_ATTRIBUTES* optional
    , "Ptr", hTransaction   ; HANDLE
    , "Int")   ; return: BOOL

●CreateHardLinkTransactedW(lpFileName, lpExistingFileName, lpSecurityAttributes, hTransaction) = DLL("KERNEL32.dll", "bool CreateHardLinkTransactedW(char*, char*, void*, void*)")
# 呼び出し: CreateHardLinkTransactedW(lpFileName, lpExistingFileName, lpSecurityAttributes, hTransaction)
# lpFileName : LPCWSTR -> "char*"
# lpExistingFileName : LPCWSTR -> "char*"
# lpSecurityAttributes : SECURITY_ATTRIBUTES* optional -> "void*"
# hTransaction : HANDLE -> "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。