FindFirstFileNameTransactedW

// KERNEL32.dll
#include <windows.h>

HANDLE FindFirstFileNameTransactedW(
    LPCWSTR lpFileName,
    DWORD dwFlags,
    DWORD* StringLength,
    LPWSTR LinkName,
    HANDLE hTransaction   // optional
);

<DllImport("KERNEL32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function FindFirstFileNameTransactedW(
    <MarshalAs(UnmanagedType.LPWStr)> lpFileName As String,   ' LPCWSTR
    dwFlags As UInteger,   ' DWORD
    ByRef StringLength As UInteger,   ' DWORD* in/out
    <MarshalAs(UnmanagedType.LPWStr)> LinkName As System.Text.StringBuilder,   ' LPWSTR out
    hTransaction As IntPtr   ' HANDLE optional
) As IntPtr
End Function

' lpFileName : LPCWSTR
' dwFlags : DWORD
' StringLength : DWORD* in/out
' LinkName : LPWSTR out
' hTransaction : HANDLE optional
Declare PtrSafe Function FindFirstFileNameTransactedW Lib "kernel32" ( _
    ByVal lpFileName As LongPtr, _
    ByVal dwFlags As Long, _
    ByRef StringLength As Long, _
    ByVal LinkName As LongPtr, _
    ByVal hTransaction As LongPtr) As LongPtr
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

FindFirstFileNameTransactedW = ctypes.windll.kernel32.FindFirstFileNameTransactedW
FindFirstFileNameTransactedW.restype = ctypes.c_void_p
FindFirstFileNameTransactedW.argtypes = [
    wintypes.LPCWSTR,  # lpFileName : LPCWSTR
    wintypes.DWORD,  # dwFlags : DWORD
    ctypes.POINTER(wintypes.DWORD),  # StringLength : DWORD* in/out
    wintypes.LPWSTR,  # LinkName : LPWSTR out
    wintypes.HANDLE,  # hTransaction : HANDLE optional
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
FindFirstFileNameTransactedW = Fiddle::Function.new(
  lib['FindFirstFileNameTransactedW'],
  [
    Fiddle::TYPE_VOIDP,  # lpFileName : LPCWSTR
    -Fiddle::TYPE_INT,  # dwFlags : DWORD
    Fiddle::TYPE_VOIDP,  # StringLength : DWORD* in/out
    Fiddle::TYPE_VOIDP,  # LinkName : LPWSTR out
    Fiddle::TYPE_VOIDP,  # hTransaction : HANDLE optional
  ],
  Fiddle::TYPE_VOIDP)

#[link(name = "kernel32")]
extern "system" {
    fn FindFirstFileNameTransactedW(
        lpFileName: *const u16,  // LPCWSTR
        dwFlags: u32,  // DWORD
        StringLength: *mut u32,  // DWORD* in/out
        LinkName: *mut u16,  // LPWSTR out
        hTransaction: *mut core::ffi::c_void  // HANDLE optional
    ) -> *mut core::ffi::c_void;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("KERNEL32.dll", SetLastError = true)]
public static extern IntPtr FindFirstFileNameTransactedW([MarshalAs(UnmanagedType.LPWStr)] string lpFileName, uint dwFlags, ref uint StringLength, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder LinkName, IntPtr hTransaction);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_FindFirstFileNameTransactedW' -Namespace Win32 -PassThru
# $api::FindFirstFileNameTransactedW(lpFileName, dwFlags, StringLength, LinkName, hTransaction)

#uselib "KERNEL32.dll"
#func global FindFirstFileNameTransactedW "FindFirstFileNameTransactedW" sptr, sptr, sptr, sptr, sptr
; FindFirstFileNameTransactedW lpFileName, dwFlags, varptr(StringLength), varptr(LinkName), hTransaction   ; 戻り値は stat
; lpFileName : LPCWSTR -> "sptr"
; dwFlags : DWORD -> "sptr"
; StringLength : DWORD* in/out -> "sptr"
; LinkName : LPWSTR out -> "sptr"
; hTransaction : HANDLE optional -> "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 "KERNEL32.dll"
#cfunc global FindFirstFileNameTransactedW "FindFirstFileNameTransactedW" wstr, int, var, var, sptr
; res = FindFirstFileNameTransactedW(lpFileName, dwFlags, StringLength, LinkName, hTransaction)
; lpFileName : LPCWSTR -> "wstr"
; dwFlags : DWORD -> "int"
; StringLength : DWORD* in/out -> "var"
; LinkName : LPWSTR out -> "var"
; hTransaction : HANDLE optional -> "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。

; HANDLE FindFirstFileNameTransactedW(LPCWSTR lpFileName, DWORD dwFlags, DWORD* StringLength, LPWSTR LinkName, HANDLE hTransaction)
#uselib "KERNEL32.dll"
#cfunc global FindFirstFileNameTransactedW "FindFirstFileNameTransactedW" wstr, int, var, var, intptr
; res = FindFirstFileNameTransactedW(lpFileName, dwFlags, StringLength, LinkName, hTransaction)
; lpFileName : LPCWSTR -> "wstr"
; dwFlags : DWORD -> "int"
; StringLength : DWORD* in/out -> "var"
; LinkName : LPWSTR out -> "var"
; hTransaction : HANDLE optional -> "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")
	procFindFirstFileNameTransactedW = kernel32.NewProc("FindFirstFileNameTransactedW")
)

// lpFileName (LPCWSTR), dwFlags (DWORD), StringLength (DWORD* in/out), LinkName (LPWSTR out), hTransaction (HANDLE optional)
r1, _, err := procFindFirstFileNameTransactedW.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpFileName))),
	uintptr(dwFlags),
	uintptr(StringLength),
	uintptr(LinkName),
	uintptr(hTransaction),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HANDLE

function FindFirstFileNameTransactedW(
  lpFileName: PWideChar;   // LPCWSTR
  dwFlags: DWORD;   // DWORD
  StringLength: Pointer;   // DWORD* in/out
  LinkName: PWideChar;   // LPWSTR out
  hTransaction: THandle   // HANDLE optional
): THandle; stdcall;
  external 'KERNEL32.dll' name 'FindFirstFileNameTransactedW';

result := DllCall("KERNEL32\FindFirstFileNameTransactedW"
    , "WStr", lpFileName   ; LPCWSTR
    , "UInt", dwFlags   ; DWORD
    , "Ptr", StringLength   ; DWORD* in/out
    , "Ptr", LinkName   ; LPWSTR out
    , "Ptr", hTransaction   ; HANDLE optional
    , "Ptr")   ; return: HANDLE

●FindFirstFileNameTransactedW(lpFileName, dwFlags, StringLength, LinkName, hTransaction) = DLL("KERNEL32.dll", "void* FindFirstFileNameTransactedW(char*, dword, void*, char*, void*)")
# 呼び出し: FindFirstFileNameTransactedW(lpFileName, dwFlags, StringLength, LinkName, hTransaction)
# lpFileName : LPCWSTR -> "char*"
# dwFlags : DWORD -> "dword"
# StringLength : DWORD* in/out -> "void*"
# LinkName : LPWSTR out -> "char*"
# hTransaction : HANDLE 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)。