FindFirstStreamW

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

HANDLE FindFirstStreamW(
    LPCWSTR lpFileName,
    STREAM_INFO_LEVELS InfoLevel,
    void* lpFindStreamData,
    DWORD dwFlags   // optional
);

<DllImport("KERNEL32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function FindFirstStreamW(
    <MarshalAs(UnmanagedType.LPWStr)> lpFileName As String,   ' LPCWSTR
    InfoLevel As Integer,   ' STREAM_INFO_LEVELS
    lpFindStreamData As IntPtr,   ' void* out
    dwFlags As UInteger   ' DWORD optional
) As IntPtr
End Function

' lpFileName : LPCWSTR
' InfoLevel : STREAM_INFO_LEVELS
' lpFindStreamData : void* out
' dwFlags : DWORD optional
Declare PtrSafe Function FindFirstStreamW Lib "kernel32" ( _
    ByVal lpFileName As LongPtr, _
    ByVal InfoLevel As Long, _
    ByVal lpFindStreamData As LongPtr, _
    ByVal dwFlags As Long) As LongPtr
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

FindFirstStreamW = ctypes.windll.kernel32.FindFirstStreamW
FindFirstStreamW.restype = ctypes.c_void_p
FindFirstStreamW.argtypes = [
    wintypes.LPCWSTR,  # lpFileName : LPCWSTR
    ctypes.c_int,  # InfoLevel : STREAM_INFO_LEVELS
    ctypes.POINTER(None),  # lpFindStreamData : void* out
    wintypes.DWORD,  # dwFlags : DWORD optional
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
FindFirstStreamW = Fiddle::Function.new(
  lib['FindFirstStreamW'],
  [
    Fiddle::TYPE_VOIDP,  # lpFileName : LPCWSTR
    Fiddle::TYPE_INT,  # InfoLevel : STREAM_INFO_LEVELS
    Fiddle::TYPE_VOIDP,  # lpFindStreamData : void* out
    -Fiddle::TYPE_INT,  # dwFlags : DWORD optional
  ],
  Fiddle::TYPE_VOIDP)

#[link(name = "kernel32")]
extern "system" {
    fn FindFirstStreamW(
        lpFileName: *const u16,  // LPCWSTR
        InfoLevel: i32,  // STREAM_INFO_LEVELS
        lpFindStreamData: *mut (),  // void* out
        dwFlags: u32  // DWORD 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 FindFirstStreamW([MarshalAs(UnmanagedType.LPWStr)] string lpFileName, int InfoLevel, IntPtr lpFindStreamData, uint dwFlags);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_FindFirstStreamW' -Namespace Win32 -PassThru
# $api::FindFirstStreamW(lpFileName, InfoLevel, lpFindStreamData, dwFlags)

#uselib "KERNEL32.dll"
#func global FindFirstStreamW "FindFirstStreamW" sptr, sptr, sptr, sptr
; FindFirstStreamW lpFileName, InfoLevel, lpFindStreamData, dwFlags   ; 戻り値は stat
; lpFileName : LPCWSTR -> "sptr"
; InfoLevel : STREAM_INFO_LEVELS -> "sptr"
; lpFindStreamData : void* out -> "sptr"
; dwFlags : DWORD 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 FindFirstStreamW "FindFirstStreamW" wstr, int, sptr, int
; res = FindFirstStreamW(lpFileName, InfoLevel, lpFindStreamData, dwFlags)
; lpFileName : LPCWSTR -> "wstr"
; InfoLevel : STREAM_INFO_LEVELS -> "int"
; lpFindStreamData : void* out -> "sptr"
; dwFlags : DWORD optional -> "int"

; HANDLE FindFirstStreamW(LPCWSTR lpFileName, STREAM_INFO_LEVELS InfoLevel, void* lpFindStreamData, DWORD dwFlags)
#uselib "KERNEL32.dll"
#cfunc global FindFirstStreamW "FindFirstStreamW" wstr, int, intptr, int
; res = FindFirstStreamW(lpFileName, InfoLevel, lpFindStreamData, dwFlags)
; lpFileName : LPCWSTR -> "wstr"
; InfoLevel : STREAM_INFO_LEVELS -> "int"
; lpFindStreamData : void* out -> "intptr"
; dwFlags : DWORD optional -> "int"

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

var (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	procFindFirstStreamW = kernel32.NewProc("FindFirstStreamW")
)

// lpFileName (LPCWSTR), InfoLevel (STREAM_INFO_LEVELS), lpFindStreamData (void* out), dwFlags (DWORD optional)
r1, _, err := procFindFirstStreamW.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpFileName))),
	uintptr(InfoLevel),
	uintptr(lpFindStreamData),
	uintptr(dwFlags),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HANDLE

function FindFirstStreamW(
  lpFileName: PWideChar;   // LPCWSTR
  InfoLevel: Integer;   // STREAM_INFO_LEVELS
  lpFindStreamData: Pointer;   // void* out
  dwFlags: DWORD   // DWORD optional
): THandle; stdcall;
  external 'KERNEL32.dll' name 'FindFirstStreamW';

result := DllCall("KERNEL32\FindFirstStreamW"
    , "WStr", lpFileName   ; LPCWSTR
    , "Int", InfoLevel   ; STREAM_INFO_LEVELS
    , "Ptr", lpFindStreamData   ; void* out
    , "UInt", dwFlags   ; DWORD optional
    , "Ptr")   ; return: HANDLE

●FindFirstStreamW(lpFileName, InfoLevel, lpFindStreamData, dwFlags) = DLL("KERNEL32.dll", "void* FindFirstStreamW(char*, int, void*, dword)")
# 呼び出し: FindFirstStreamW(lpFileName, InfoLevel, lpFindStreamData, dwFlags)
# lpFileName : LPCWSTR -> "char*"
# InfoLevel : STREAM_INFO_LEVELS -> "int"
# lpFindStreamData : void* out -> "void*"
# dwFlags : DWORD optional -> "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)。

const std = @import("std");

extern "kernel32" fn FindFirstStreamW(
    lpFileName: [*c]const u16, // LPCWSTR
    InfoLevel: i32, // STREAM_INFO_LEVELS
    lpFindStreamData: ?*anyopaque, // void* out
    dwFlags: u32 // DWORD optional
) callconv(std.os.windows.WINAPI) ?*anyopaque;

proc FindFirstStreamW(
    lpFileName: WideCString,  # LPCWSTR
    InfoLevel: int32,  # STREAM_INFO_LEVELS
    lpFindStreamData: pointer,  # void* out
    dwFlags: uint32  # DWORD optional
): pointer {.importc: "FindFirstStreamW", stdcall, dynlib: "KERNEL32.dll".}

pragma(lib, "kernel32");
extern(Windows)
void* FindFirstStreamW(
    const(wchar)* lpFileName,   // LPCWSTR
    int InfoLevel,   // STREAM_INFO_LEVELS
    void* lpFindStreamData,   // void* out
    uint dwFlags   // DWORD optional
);

ccall((:FindFirstStreamW, "KERNEL32.dll"), stdcall, Ptr{Cvoid},
      (Cwstring, Int32, Ptr{Cvoid}, UInt32),
      lpFileName, InfoLevel, lpFindStreamData, dwFlags)
# lpFileName : LPCWSTR -> Cwstring
# InfoLevel : STREAM_INFO_LEVELS -> Int32
# lpFindStreamData : void* out -> Ptr{Cvoid}
# dwFlags : DWORD optional -> UInt32
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
void* FindFirstStreamW(
    const uint16_t* lpFileName,
    int32_t InfoLevel,
    void* lpFindStreamData,
    uint32_t dwFlags);
]]
local kernel32 = ffi.load("kernel32")
-- kernel32.FindFirstStreamW(lpFileName, InfoLevel, lpFindStreamData, dwFlags)
-- lpFileName : LPCWSTR
-- InfoLevel : STREAM_INFO_LEVELS
-- lpFindStreamData : void* out
-- dwFlags : DWORD optional
-- 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。

const koffi = require('koffi');
const lib = koffi.load('KERNEL32.dll');
const FindFirstStreamW = lib.func('__stdcall', 'FindFirstStreamW', 'void *', ['str16', 'int32_t', 'void *', 'uint32_t']);
// FindFirstStreamW(lpFileName, InfoLevel, lpFindStreamData, dwFlags)
// lpFileName : LPCWSTR -> 'str16'
// InfoLevel : STREAM_INFO_LEVELS -> 'int32_t'
// lpFindStreamData : void* out -> 'void *'
// dwFlags : DWORD optional -> 'uint32_t'
// 出力ポインタは koffi.out(...) で包む。構造体は koffi.struct で定義。

const lib = Deno.dlopen("KERNEL32.dll", {
  FindFirstStreamW: { parameters: ["buffer", "i32", "pointer", "u32"], result: "pointer" },
});
// lib.symbols.FindFirstStreamW(lpFileName, InfoLevel, lpFindStreamData, dwFlags)
// lpFileName : LPCWSTR -> "buffer"
// InfoLevel : STREAM_INFO_LEVELS -> "i32"
// lpFindStreamData : void* out -> "pointer"
// dwFlags : DWORD optional -> "u32"
// 文字列引数は "buffer"(NUL 終端のバイト列を Uint8Array で渡す)。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
void* FindFirstStreamW(
    const uint16_t* lpFileName,
    int32_t InfoLevel,
    void* lpFindStreamData,
    uint32_t dwFlags);
C, "KERNEL32.dll");
// $ffi->FindFirstStreamW(lpFileName, InfoLevel, lpFindStreamData, dwFlags);
// lpFileName : LPCWSTR
// InfoLevel : STREAM_INFO_LEVELS
// lpFindStreamData : void* out
// dwFlags : DWORD optional
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。

import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;

public interface Kernel32 extends StdCallLibrary {
    Kernel32 INSTANCE = Native.load("kernel32", Kernel32.class);
    Pointer FindFirstStreamW(
        WString lpFileName,   // LPCWSTR
        int InfoLevel,   // STREAM_INFO_LEVELS
        Pointer lpFindStreamData,   // void* out
        int dwFlags   // DWORD optional
    );
}

@[Link("kernel32")]
lib LibKERNEL32
  fun FindFirstStreamW = FindFirstStreamW(
    lpFileName : UInt16*,   # LPCWSTR
    InfoLevel : Int32,   # STREAM_INFO_LEVELS
    lpFindStreamData : Void*,   # void* out
    dwFlags : UInt32   # DWORD optional
  ) : Void*
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。

import 'dart:ffi';
import 'package:ffi/ffi.dart';

typedef FindFirstStreamWNative = Pointer<Void> Function(Pointer<Utf16>, Int32, Pointer<Void>, Uint32);
typedef FindFirstStreamWDart = Pointer<Void> Function(Pointer<Utf16>, int, Pointer<Void>, int);
final FindFirstStreamW = DynamicLibrary.open('KERNEL32.dll')
    .lookupFunction<FindFirstStreamWNative, FindFirstStreamWDart>('FindFirstStreamW');
// lpFileName : LPCWSTR -> Pointer<Utf16>
// InfoLevel : STREAM_INFO_LEVELS -> Int32
// lpFindStreamData : void* out -> Pointer<Void>
// dwFlags : DWORD optional -> Uint32
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function FindFirstStreamW(
  lpFileName: PWideChar;   // LPCWSTR
  InfoLevel: Integer;   // STREAM_INFO_LEVELS
  lpFindStreamData: Pointer;   // void* out
  dwFlags: DWORD   // DWORD optional
): THandle; stdcall;
  external 'KERNEL32.dll' name 'FindFirstStreamW';

import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "FindFirstStreamW"
  c_FindFirstStreamW :: CWString -> Int32 -> Ptr () -> Word32 -> IO (Ptr ())
-- lpFileName : LPCWSTR -> CWString
-- InfoLevel : STREAM_INFO_LEVELS -> Int32
-- lpFindStreamData : void* out -> Ptr ()
-- dwFlags : DWORD optional -> Word32
-- 要 GHC(Windows)。stdcall は x64 では ccall として扱われる。ブロックする API は safe 呼び出し推奨。

open Ctypes
open Foreign

let findfirststreamw =
  foreign "FindFirstStreamW"
    ((ptr uint16_t) @-> int32_t @-> (ptr void) @-> uint32_t @-> returning (ptr void))
(* lpFileName : LPCWSTR -> (ptr uint16_t) *)
(* InfoLevel : STREAM_INFO_LEVELS -> int32_t *)
(* lpFindStreamData : void* out -> (ptr void) *)
(* dwFlags : DWORD optional -> uint32_t *)
(* foreign は cdecl 前提。x64 Windows では WINAPI と一致。構造体は ctypes structure を定義のこと。 *)

(cffi:define-foreign-library kernel32 (t "KERNEL32.dll"))
(cffi:use-foreign-library kernel32)

(cffi:defcfun ("FindFirstStreamW" find-first-stream-w :convention :stdcall) :pointer
  (lp-file-name (:string :encoding :utf-16le))   ; LPCWSTR
  (info-level :int32)   ; STREAM_INFO_LEVELS
  (lp-find-stream-data :pointer)   ; void* out
  (dw-flags :uint32))   ; DWORD optional
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $FindFirstStreamW = Win32::API::More->new('KERNEL32',
    'HANDLE FindFirstStreamW(LPCWSTR lpFileName, int InfoLevel, LPVOID lpFindStreamData, DWORD dwFlags)');
# my $ret = $FindFirstStreamW->Call($lpFileName, $InfoLevel, $lpFindStreamData, $dwFlags);
# lpFileName : LPCWSTR -> LPCWSTR
# InfoLevel : STREAM_INFO_LEVELS -> int
# lpFindStreamData : void* out -> LPVOID
# dwFlags : DWORD optional -> DWORD
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。