CreateWindowStationA

// USER32.dll  (ANSI / -A)
#include <windows.h>

HWINSTA CreateWindowStationA(
    LPCSTR lpwinsta,   // optional
    DWORD dwFlags,
    DWORD dwDesiredAccess,
    SECURITY_ATTRIBUTES* lpsa   // optional
);

<DllImport("USER32.dll", CharSet:=CharSet.Ansi, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function CreateWindowStationA(
    <MarshalAs(UnmanagedType.LPStr)> lpwinsta As String,   ' LPCSTR optional
    dwFlags As UInteger,   ' DWORD
    dwDesiredAccess As UInteger,   ' DWORD
    lpsa As IntPtr   ' SECURITY_ATTRIBUTES* optional
) As IntPtr
End Function

' lpwinsta : LPCSTR optional
' dwFlags : DWORD
' dwDesiredAccess : DWORD
' lpsa : SECURITY_ATTRIBUTES* optional
Declare PtrSafe Function CreateWindowStationA Lib "user32" ( _
    ByVal lpwinsta As String, _
    ByVal dwFlags As Long, _
    ByVal dwDesiredAccess As Long, _
    ByVal lpsa 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

CreateWindowStationA = ctypes.windll.user32.CreateWindowStationA
CreateWindowStationA.restype = ctypes.c_void_p
CreateWindowStationA.argtypes = [
    wintypes.LPCSTR,  # lpwinsta : LPCSTR optional
    wintypes.DWORD,  # dwFlags : DWORD
    wintypes.DWORD,  # dwDesiredAccess : DWORD
    ctypes.c_void_p,  # lpsa : SECURITY_ATTRIBUTES* optional
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('USER32.dll')
CreateWindowStationA = Fiddle::Function.new(
  lib['CreateWindowStationA'],
  [
    Fiddle::TYPE_VOIDP,  # lpwinsta : LPCSTR optional
    -Fiddle::TYPE_INT,  # dwFlags : DWORD
    -Fiddle::TYPE_INT,  # dwDesiredAccess : DWORD
    Fiddle::TYPE_VOIDP,  # lpsa : SECURITY_ATTRIBUTES* optional
  ],
  Fiddle::TYPE_VOIDP)

#[link(name = "user32")]
extern "system" {
    fn CreateWindowStationA(
        lpwinsta: *const u8,  // LPCSTR optional
        dwFlags: u32,  // DWORD
        dwDesiredAccess: u32,  // DWORD
        lpsa: *mut SECURITY_ATTRIBUTES  // SECURITY_ATTRIBUTES* optional
    ) -> *mut core::ffi::c_void;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("USER32.dll", CharSet = CharSet.Ansi, SetLastError = true)]
public static extern IntPtr CreateWindowStationA([MarshalAs(UnmanagedType.LPStr)] string lpwinsta, uint dwFlags, uint dwDesiredAccess, IntPtr lpsa);
"@
$api = Add-Type -MemberDefinition $sig -Name 'USER32_CreateWindowStationA' -Namespace Win32 -PassThru
# $api::CreateWindowStationA(lpwinsta, dwFlags, dwDesiredAccess, lpsa)

#uselib "USER32.dll"
#func global CreateWindowStationA "CreateWindowStationA" sptr, sptr, sptr, sptr
; CreateWindowStationA lpwinsta, dwFlags, dwDesiredAccess, varptr(lpsa)   ; 戻り値は stat
; lpwinsta : LPCSTR optional -> "sptr"
; dwFlags : DWORD -> "sptr"
; dwDesiredAccess : DWORD -> "sptr"
; lpsa : SECURITY_ATTRIBUTES* 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。

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

var (
	user32 = windows.NewLazySystemDLL("USER32.dll")
	procCreateWindowStationA = user32.NewProc("CreateWindowStationA")
)

// lpwinsta (LPCSTR optional), dwFlags (DWORD), dwDesiredAccess (DWORD), lpsa (SECURITY_ATTRIBUTES* optional)
r1, _, err := procCreateWindowStationA.Call(
	uintptr(unsafe.Pointer(windows.BytePtrFromString(lpwinsta))),
	uintptr(dwFlags),
	uintptr(dwDesiredAccess),
	uintptr(lpsa),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HWINSTA

function CreateWindowStationA(
  lpwinsta: PAnsiChar;   // LPCSTR optional
  dwFlags: DWORD;   // DWORD
  dwDesiredAccess: DWORD;   // DWORD
  lpsa: Pointer   // SECURITY_ATTRIBUTES* optional
): THandle; stdcall;
  external 'USER32.dll' name 'CreateWindowStationA';

result := DllCall("USER32\CreateWindowStationA"
    , "AStr", lpwinsta   ; LPCSTR optional
    , "UInt", dwFlags   ; DWORD
    , "UInt", dwDesiredAccess   ; DWORD
    , "Ptr", lpsa   ; SECURITY_ATTRIBUTES* optional
    , "Ptr")   ; return: HWINSTA

●CreateWindowStationA(lpwinsta, dwFlags, dwDesiredAccess, lpsa) = DLL("USER32.dll", "void* CreateWindowStationA(char*, dword, dword, void*)")
# 呼び出し: CreateWindowStationA(lpwinsta, dwFlags, dwDesiredAccess, lpsa)
# lpwinsta : LPCSTR optional -> "char*"
# dwFlags : DWORD -> "dword"
# dwDesiredAccess : DWORD -> "dword"
# lpsa : 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)。

const std = @import("std");

extern "user32" fn CreateWindowStationA(
    lpwinsta: [*c]const u8, // LPCSTR optional
    dwFlags: u32, // DWORD
    dwDesiredAccess: u32, // DWORD
    lpsa: [*c]SECURITY_ATTRIBUTES // SECURITY_ATTRIBUTES* optional
) callconv(std.os.windows.WINAPI) ?*anyopaque;

proc CreateWindowStationA(
    lpwinsta: cstring,  # LPCSTR optional
    dwFlags: uint32,  # DWORD
    dwDesiredAccess: uint32,  # DWORD
    lpsa: ptr SECURITY_ATTRIBUTES  # SECURITY_ATTRIBUTES* optional
): pointer {.importc: "CreateWindowStationA", stdcall, dynlib: "USER32.dll".}

pragma(lib, "user32");
extern(Windows)
void* CreateWindowStationA(
    const(char)* lpwinsta,   // LPCSTR optional
    uint dwFlags,   // DWORD
    uint dwDesiredAccess,   // DWORD
    SECURITY_ATTRIBUTES* lpsa   // SECURITY_ATTRIBUTES* optional
);

ccall((:CreateWindowStationA, "USER32.dll"), stdcall, Ptr{Cvoid},
      (Cstring, UInt32, UInt32, Ptr{SECURITY_ATTRIBUTES}),
      lpwinsta, dwFlags, dwDesiredAccess, lpsa)
# lpwinsta : LPCSTR optional -> Cstring
# dwFlags : DWORD -> UInt32
# dwDesiredAccess : DWORD -> UInt32
# lpsa : SECURITY_ATTRIBUTES* optional -> Ptr{SECURITY_ATTRIBUTES}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
void* CreateWindowStationA(
    const char* lpwinsta,
    uint32_t dwFlags,
    uint32_t dwDesiredAccess,
    void* lpsa);
]]
local user32 = ffi.load("user32")
-- user32.CreateWindowStationA(lpwinsta, dwFlags, dwDesiredAccess, lpsa)
-- lpwinsta : LPCSTR optional
-- dwFlags : DWORD
-- dwDesiredAccess : DWORD
-- lpsa : SECURITY_ATTRIBUTES* 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('USER32.dll');
const CreateWindowStationA = lib.func('__stdcall', 'CreateWindowStationA', 'void *', ['str', 'uint32_t', 'uint32_t', 'void *']);
// CreateWindowStationA(lpwinsta, dwFlags, dwDesiredAccess, lpsa)
// lpwinsta : LPCSTR optional -> 'str'
// dwFlags : DWORD -> 'uint32_t'
// dwDesiredAccess : DWORD -> 'uint32_t'
// lpsa : SECURITY_ATTRIBUTES* optional -> 'void *'
// 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("USER32.dll", {
  CreateWindowStationA: { parameters: ["buffer", "u32", "u32", "pointer"], result: "pointer" },
});
// lib.symbols.CreateWindowStationA(lpwinsta, dwFlags, dwDesiredAccess, lpsa)
// lpwinsta : LPCSTR optional -> "buffer"
// dwFlags : DWORD -> "u32"
// dwDesiredAccess : DWORD -> "u32"
// lpsa : SECURITY_ATTRIBUTES* optional -> "pointer"
// 文字列は "buffer"。ANSI(-A) は new TextEncoder() で UTF-8/ANSI バイト列(末尾に \x00)を渡す。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
void* CreateWindowStationA(
    const char* lpwinsta,
    uint32_t dwFlags,
    uint32_t dwDesiredAccess,
    void* lpsa);
C, "USER32.dll");
// $ffi->CreateWindowStationA(lpwinsta, dwFlags, dwDesiredAccess, lpsa);
// lpwinsta : LPCSTR optional
// dwFlags : DWORD
// dwDesiredAccess : DWORD
// lpsa : SECURITY_ATTRIBUTES* 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 User32 extends StdCallLibrary {
    User32 INSTANCE = Native.load("user32", User32.class, W32APIOptions.ASCII_OPTIONS);
    Pointer CreateWindowStationA(
        String lpwinsta,   // LPCSTR optional
        int dwFlags,   // DWORD
        int dwDesiredAccess,   // DWORD
        Pointer lpsa   // SECURITY_ATTRIBUTES* optional
    );
}

@[Link("user32")]
lib LibUSER32
  fun CreateWindowStationA = CreateWindowStationA(
    lpwinsta : UInt8*,   # LPCSTR optional
    dwFlags : UInt32,   # DWORD
    dwDesiredAccess : UInt32,   # DWORD
    lpsa : SECURITY_ATTRIBUTES*   # SECURITY_ATTRIBUTES* 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 CreateWindowStationANative = Pointer<Void> Function(Pointer<Utf8>, Uint32, Uint32, Pointer<Void>);
typedef CreateWindowStationADart = Pointer<Void> Function(Pointer<Utf8>, int, int, Pointer<Void>);
final CreateWindowStationA = DynamicLibrary.open('USER32.dll')
    .lookupFunction<CreateWindowStationANative, CreateWindowStationADart>('CreateWindowStationA');
// lpwinsta : LPCSTR optional -> Pointer<Utf8>
// dwFlags : DWORD -> Uint32
// dwDesiredAccess : DWORD -> Uint32
// lpsa : SECURITY_ATTRIBUTES* optional -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function CreateWindowStationA(
  lpwinsta: PAnsiChar;   // LPCSTR optional
  dwFlags: DWORD;   // DWORD
  dwDesiredAccess: DWORD;   // DWORD
  lpsa: Pointer   // SECURITY_ATTRIBUTES* optional
): THandle; stdcall;
  external 'USER32.dll' name 'CreateWindowStationA';

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

foreign import stdcall safe "CreateWindowStationA"
  c_CreateWindowStationA :: CString -> Word32 -> Word32 -> Ptr () -> IO (Ptr ())
-- lpwinsta : LPCSTR optional -> CString
-- dwFlags : DWORD -> Word32
-- dwDesiredAccess : DWORD -> Word32
-- lpsa : SECURITY_ATTRIBUTES* optional -> Ptr ()
-- 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 createwindowstationa =
  foreign "CreateWindowStationA"
    (string @-> uint32_t @-> uint32_t @-> (ptr void) @-> returning (ptr void))
(* lpwinsta : LPCSTR optional -> string *)
(* dwFlags : DWORD -> uint32_t *)
(* dwDesiredAccess : DWORD -> uint32_t *)
(* lpsa : SECURITY_ATTRIBUTES* optional -> (ptr void) *)
(* 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 user32 (t "USER32.dll"))
(cffi:use-foreign-library user32)

(cffi:defcfun ("CreateWindowStationA" create-window-station-a :convention :stdcall) :pointer
  (lpwinsta :string)   ; LPCSTR optional
  (dw-flags :uint32)   ; DWORD
  (dw-desired-access :uint32)   ; DWORD
  (lpsa :pointer))   ; SECURITY_ATTRIBUTES* optional
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $CreateWindowStationA = Win32::API::More->new('USER32',
    'HANDLE CreateWindowStationA(LPCSTR lpwinsta, DWORD dwFlags, DWORD dwDesiredAccess, LPVOID lpsa)');
# my $ret = $CreateWindowStationA->Call($lpwinsta, $dwFlags, $dwDesiredAccess, $lpsa);
# lpwinsta : LPCSTR optional -> LPCSTR
# dwFlags : DWORD -> DWORD
# dwDesiredAccess : DWORD -> DWORD
# lpsa : SECURITY_ATTRIBUTES* optional -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。