FtpCreateDirectoryW

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

BOOL FtpCreateDirectoryW(
    void* hConnect,
    LPCWSTR lpszDirectory
);

<DllImport("WININET.dll", CharSet:=CharSet.Unicode, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function FtpCreateDirectoryW(
    hConnect As IntPtr,   ' void*
    <MarshalAs(UnmanagedType.LPWStr)> lpszDirectory As String   ' LPCWSTR
) As <MarshalAs(UnmanagedType.Bool)> Boolean
End Function

' hConnect : void*
' lpszDirectory : LPCWSTR
Declare PtrSafe Function FtpCreateDirectoryW Lib "wininet" ( _
    ByVal hConnect As LongPtr, _
    ByVal lpszDirectory 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

FtpCreateDirectoryW = ctypes.windll.wininet.FtpCreateDirectoryW
FtpCreateDirectoryW.restype = wintypes.BOOL
FtpCreateDirectoryW.argtypes = [
    ctypes.POINTER(None),  # hConnect : void*
    wintypes.LPCWSTR,  # lpszDirectory : LPCWSTR
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WININET.dll')
FtpCreateDirectoryW = Fiddle::Function.new(
  lib['FtpCreateDirectoryW'],
  [
    Fiddle::TYPE_VOIDP,  # hConnect : void*
    Fiddle::TYPE_VOIDP,  # lpszDirectory : LPCWSTR
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "wininet")]
extern "system" {
    fn FtpCreateDirectoryW(
        hConnect: *mut (),  // void*
        lpszDirectory: *const u16  // LPCWSTR
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("WININET.dll", CharSet = CharSet.Unicode, SetLastError = true)]
public static extern bool FtpCreateDirectoryW(IntPtr hConnect, [MarshalAs(UnmanagedType.LPWStr)] string lpszDirectory);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WININET_FtpCreateDirectoryW' -Namespace Win32 -PassThru
# $api::FtpCreateDirectoryW(hConnect, lpszDirectory)

#uselib "WININET.dll"
#func global FtpCreateDirectoryW "FtpCreateDirectoryW" wptr, wptr
; FtpCreateDirectoryW hConnect, lpszDirectory   ; 戻り値は stat
; hConnect : void* -> "wptr"
; lpszDirectory : LPCWSTR -> "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 "WININET.dll"
#cfunc global FtpCreateDirectoryW "FtpCreateDirectoryW" sptr, wstr
; res = FtpCreateDirectoryW(hConnect, lpszDirectory)
; hConnect : void* -> "sptr"
; lpszDirectory : LPCWSTR -> "wstr"

; BOOL FtpCreateDirectoryW(void* hConnect, LPCWSTR lpszDirectory)
#uselib "WININET.dll"
#cfunc global FtpCreateDirectoryW "FtpCreateDirectoryW" intptr, wstr
; res = FtpCreateDirectoryW(hConnect, lpszDirectory)
; hConnect : void* -> "intptr"
; lpszDirectory : LPCWSTR -> "wstr"

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

var (
	wininet = windows.NewLazySystemDLL("WININET.dll")
	procFtpCreateDirectoryW = wininet.NewProc("FtpCreateDirectoryW")
)

// hConnect (void*), lpszDirectory (LPCWSTR)
r1, _, err := procFtpCreateDirectoryW.Call(
	uintptr(hConnect),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpszDirectory))),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function FtpCreateDirectoryW(
  hConnect: Pointer;   // void*
  lpszDirectory: PWideChar   // LPCWSTR
): BOOL; stdcall;
  external 'WININET.dll' name 'FtpCreateDirectoryW';

result := DllCall("WININET\FtpCreateDirectoryW"
    , "Ptr", hConnect   ; void*
    , "WStr", lpszDirectory   ; LPCWSTR
    , "Int")   ; return: BOOL

●FtpCreateDirectoryW(hConnect, lpszDirectory) = DLL("WININET.dll", "bool FtpCreateDirectoryW(void*, char*)")
# 呼び出し: FtpCreateDirectoryW(hConnect, lpszDirectory)
# hConnect : void* -> "void*"
# lpszDirectory : LPCWSTR -> "char*"
# 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。

const std = @import("std");

extern "wininet" fn FtpCreateDirectoryW(
    hConnect: ?*anyopaque, // void*
    lpszDirectory: [*c]const u16 // LPCWSTR
) callconv(std.os.windows.WINAPI) i32;
// Unicode(-W): UTF-16LE のヌル終端バッファ([*c]const u16)を渡す。

proc FtpCreateDirectoryW(
    hConnect: pointer,  # void*
    lpszDirectory: WideCString  # LPCWSTR
): int32 {.importc: "FtpCreateDirectoryW", stdcall, dynlib: "WININET.dll".}
# Unicode(-W): WideCString は newWideCString("...") で生成。

pragma(lib, "wininet");
extern(Windows)
int FtpCreateDirectoryW(
    void* hConnect,   // void*
    const(wchar)* lpszDirectory   // LPCWSTR
);

ccall((:FtpCreateDirectoryW, "WININET.dll"), stdcall, Int32,
      (Ptr{Cvoid}, Cwstring),
      hConnect, lpszDirectory)
# hConnect : void* -> Ptr{Cvoid}
# lpszDirectory : LPCWSTR -> Cwstring
# stdcall は 32bit のみ意味を持つ(x64 では無視)。
# Unicode(-W): Cwstring には transcode(UInt16, "...") 等で UTF-16 を渡す。

local ffi = require("ffi")
ffi.cdef[[
int32_t FtpCreateDirectoryW(
    void* hConnect,
    const uint16_t* lpszDirectory);
]]
local wininet = ffi.load("wininet")
-- wininet.FtpCreateDirectoryW(hConnect, lpszDirectory)
-- hConnect : void*
-- lpszDirectory : LPCWSTR
-- 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。
-- Unicode(-W): uint16_t* には UTF-16LE のバッファ(ffi.new("uint16_t[?]", ...))を渡す。

const koffi = require('koffi');
const lib = koffi.load('WININET.dll');
const FtpCreateDirectoryW = lib.func('__stdcall', 'FtpCreateDirectoryW', 'int32_t', ['void *', 'str16']);
// FtpCreateDirectoryW(hConnect, lpszDirectory)
// hConnect : void* -> 'void *'
// lpszDirectory : LPCWSTR -> 'str16'
// 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("WININET.dll", {
  FtpCreateDirectoryW: { parameters: ["pointer", "buffer"], result: "i32" },
});
// lib.symbols.FtpCreateDirectoryW(hConnect, lpszDirectory)
// hConnect : void* -> "pointer"
// lpszDirectory : LPCWSTR -> "buffer"
// 文字列は "buffer"。Unicode(-W) は new TextEncoder() ではなく UTF-16LE のバイト列(末尾に \x00\x00)を Uint8Array で渡す。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
int32_t FtpCreateDirectoryW(
    void* hConnect,
    const uint16_t* lpszDirectory);
C, "WININET.dll");
// $ffi->FtpCreateDirectoryW(hConnect, lpszDirectory);
// hConnect : void*
// lpszDirectory : LPCWSTR
// 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 Wininet extends StdCallLibrary {
    Wininet INSTANCE = Native.load("wininet", Wininet.class, W32APIOptions.UNICODE_OPTIONS);
    boolean FtpCreateDirectoryW(
        Pointer hConnect,   // void*
        WString lpszDirectory   // LPCWSTR
    );
}
// Unicode(-W): WString(入力)/char[](出力)で UTF-16 をマーシャリング。

@[Link("wininet")]
lib LibWININET
  fun FtpCreateDirectoryW = FtpCreateDirectoryW(
    hConnect : Void*,   # void*
    lpszDirectory : UInt16*   # LPCWSTR
  ) : Int32
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 FtpCreateDirectoryWNative = Int32 Function(Pointer<Void>, Pointer<Utf16>);
typedef FtpCreateDirectoryWDart = int Function(Pointer<Void>, Pointer<Utf16>);
final FtpCreateDirectoryW = DynamicLibrary.open('WININET.dll')
    .lookupFunction<FtpCreateDirectoryWNative, FtpCreateDirectoryWDart>('FtpCreateDirectoryW');
// hConnect : void* -> Pointer<Void>
// lpszDirectory : LPCWSTR -> Pointer<Utf16>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function FtpCreateDirectoryW(
  hConnect: Pointer;   // void*
  lpszDirectory: PWideChar   // LPCWSTR
): BOOL; stdcall;
  external 'WININET.dll' name 'FtpCreateDirectoryW';

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

foreign import stdcall safe "FtpCreateDirectoryW"
  c_FtpCreateDirectoryW :: Ptr () -> CWString -> IO CInt
-- hConnect : void* -> Ptr ()
-- lpszDirectory : LPCWSTR -> CWString
-- 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 ftpcreatedirectoryw =
  foreign "FtpCreateDirectoryW"
    ((ptr void) @-> (ptr uint16_t) @-> returning int32_t)
(* hConnect : void* -> (ptr void) *)
(* lpszDirectory : LPCWSTR -> (ptr uint16_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 wininet (t "WININET.dll"))
(cffi:use-foreign-library wininet)

(cffi:defcfun ("FtpCreateDirectoryW" ftp-create-directory-w :convention :stdcall) :int32
  (h-connect :pointer)   ; void*
  (lpsz-directory (:string :encoding :utf-16le)))   ; LPCWSTR
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $FtpCreateDirectoryW = Win32::API::More->new('WININET',
    'BOOL FtpCreateDirectoryW(LPVOID hConnect, LPCWSTR lpszDirectory)');
# my $ret = $FtpCreateDirectoryW->Call($hConnect, $lpszDirectory);
# hConnect : void* -> LPVOID
# lpszDirectory : LPCWSTR -> LPCWSTR
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。
# Unicode(-W): LPCWSTR/LPWSTR は Win32::API が UTF-16 変換を行う。