SCardGetStatusChangeW

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

INT SCardGetStatusChangeW(
    UINT_PTR hContext,
    DWORD dwTimeout,
    SCARD_READERSTATEW* rgReaderStates,
    DWORD cReaders
);

<DllImport("WinSCard.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function SCardGetStatusChangeW(
    hContext As UIntPtr,   ' UINT_PTR
    dwTimeout As UInteger,   ' DWORD
    rgReaderStates As IntPtr,   ' SCARD_READERSTATEW* in/out
    cReaders As UInteger   ' DWORD
) As Integer
End Function

' hContext : UINT_PTR
' dwTimeout : DWORD
' rgReaderStates : SCARD_READERSTATEW* in/out
' cReaders : DWORD
Declare PtrSafe Function SCardGetStatusChangeW Lib "winscard" ( _
    ByVal hContext As LongPtr, _
    ByVal dwTimeout As Long, _
    ByVal rgReaderStates As LongPtr, _
    ByVal cReaders As Long) 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

SCardGetStatusChangeW = ctypes.windll.winscard.SCardGetStatusChangeW
SCardGetStatusChangeW.restype = ctypes.c_int
SCardGetStatusChangeW.argtypes = [
    ctypes.c_size_t,  # hContext : UINT_PTR
    wintypes.DWORD,  # dwTimeout : DWORD
    ctypes.c_void_p,  # rgReaderStates : SCARD_READERSTATEW* in/out
    wintypes.DWORD,  # cReaders : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WinSCard.dll')
SCardGetStatusChangeW = Fiddle::Function.new(
  lib['SCardGetStatusChangeW'],
  [
    Fiddle::TYPE_UINTPTR_T,  # hContext : UINT_PTR
    -Fiddle::TYPE_INT,  # dwTimeout : DWORD
    Fiddle::TYPE_VOIDP,  # rgReaderStates : SCARD_READERSTATEW* in/out
    -Fiddle::TYPE_INT,  # cReaders : DWORD
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "winscard")]
extern "system" {
    fn SCardGetStatusChangeW(
        hContext: usize,  // UINT_PTR
        dwTimeout: u32,  // DWORD
        rgReaderStates: *mut SCARD_READERSTATEW,  // SCARD_READERSTATEW* in/out
        cReaders: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("WinSCard.dll", CharSet = CharSet.Unicode)]
public static extern int SCardGetStatusChangeW(UIntPtr hContext, uint dwTimeout, IntPtr rgReaderStates, uint cReaders);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WinSCard_SCardGetStatusChangeW' -Namespace Win32 -PassThru
# $api::SCardGetStatusChangeW(hContext, dwTimeout, rgReaderStates, cReaders)

#uselib "WinSCard.dll"
#func global SCardGetStatusChangeW "SCardGetStatusChangeW" wptr, wptr, wptr, wptr
; SCardGetStatusChangeW hContext, dwTimeout, varptr(rgReaderStates), cReaders   ; 戻り値は stat
; hContext : UINT_PTR -> "wptr"
; dwTimeout : DWORD -> "wptr"
; rgReaderStates : SCARD_READERSTATEW* in/out -> "wptr"
; cReaders : DWORD -> "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。

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

var (
	winscard = windows.NewLazySystemDLL("WinSCard.dll")
	procSCardGetStatusChangeW = winscard.NewProc("SCardGetStatusChangeW")
)

// hContext (UINT_PTR), dwTimeout (DWORD), rgReaderStates (SCARD_READERSTATEW* in/out), cReaders (DWORD)
r1, _, err := procSCardGetStatusChangeW.Call(
	uintptr(hContext),
	uintptr(dwTimeout),
	uintptr(rgReaderStates),
	uintptr(cReaders),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function SCardGetStatusChangeW(
  hContext: NativeUInt;   // UINT_PTR
  dwTimeout: DWORD;   // DWORD
  rgReaderStates: Pointer;   // SCARD_READERSTATEW* in/out
  cReaders: DWORD   // DWORD
): Integer; stdcall;
  external 'WinSCard.dll' name 'SCardGetStatusChangeW';

result := DllCall("WinSCard\SCardGetStatusChangeW"
    , "UPtr", hContext   ; UINT_PTR
    , "UInt", dwTimeout   ; DWORD
    , "Ptr", rgReaderStates   ; SCARD_READERSTATEW* in/out
    , "UInt", cReaders   ; DWORD
    , "Int")   ; return: INT

●SCardGetStatusChangeW(hContext, dwTimeout, rgReaderStates, cReaders) = DLL("WinSCard.dll", "int SCardGetStatusChangeW(int, dword, void*, dword)")
# 呼び出し: SCardGetStatusChangeW(hContext, dwTimeout, rgReaderStates, cReaders)
# hContext : UINT_PTR -> "int"
# dwTimeout : DWORD -> "dword"
# rgReaderStates : SCARD_READERSTATEW* in/out -> "void*"
# cReaders : DWORD -> "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)。
# ※-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 "winscard" fn SCardGetStatusChangeW(
    hContext: usize, // UINT_PTR
    dwTimeout: u32, // DWORD
    rgReaderStates: [*c]SCARD_READERSTATEW, // SCARD_READERSTATEW* in/out
    cReaders: u32 // DWORD
) 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 SCardGetStatusChangeW(
    hContext: uint,  # UINT_PTR
    dwTimeout: uint32,  # DWORD
    rgReaderStates: ptr SCARD_READERSTATEW,  # SCARD_READERSTATEW* in/out
    cReaders: uint32  # DWORD
): int32 {.importc: "SCardGetStatusChangeW", stdcall, dynlib: "WinSCard.dll".}
# Unicode(-W): WideCString は newWideCString("...") で生成。

pragma(lib, "winscard");
extern(Windows)
int SCardGetStatusChangeW(
    size_t hContext,   // UINT_PTR
    uint dwTimeout,   // DWORD
    SCARD_READERSTATEW* rgReaderStates,   // SCARD_READERSTATEW* in/out
    uint cReaders   // DWORD
);

ccall((:SCardGetStatusChangeW, "WinSCard.dll"), stdcall, Int32,
      (Csize_t, UInt32, Ptr{SCARD_READERSTATEW}, UInt32),
      hContext, dwTimeout, rgReaderStates, cReaders)
# hContext : UINT_PTR -> Csize_t
# dwTimeout : DWORD -> UInt32
# rgReaderStates : SCARD_READERSTATEW* in/out -> Ptr{SCARD_READERSTATEW}
# cReaders : DWORD -> UInt32
# 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 SCardGetStatusChangeW(
    uintptr_t hContext,
    uint32_t dwTimeout,
    void* rgReaderStates,
    uint32_t cReaders);
]]
local winscard = ffi.load("winscard")
-- winscard.SCardGetStatusChangeW(hContext, dwTimeout, rgReaderStates, cReaders)
-- hContext : UINT_PTR
-- dwTimeout : DWORD
-- rgReaderStates : SCARD_READERSTATEW* in/out
-- cReaders : DWORD
-- 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('WinSCard.dll');
const SCardGetStatusChangeW = lib.func('__stdcall', 'SCardGetStatusChangeW', 'int32_t', ['uintptr_t', 'uint32_t', 'void *', 'uint32_t']);
// SCardGetStatusChangeW(hContext, dwTimeout, rgReaderStates, cReaders)
// hContext : UINT_PTR -> 'uintptr_t'
// dwTimeout : DWORD -> 'uint32_t'
// rgReaderStates : SCARD_READERSTATEW* in/out -> 'void *'
// cReaders : DWORD -> '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("WinSCard.dll", {
  SCardGetStatusChangeW: { parameters: ["usize", "u32", "pointer", "u32"], result: "i32" },
});
// lib.symbols.SCardGetStatusChangeW(hContext, dwTimeout, rgReaderStates, cReaders)
// hContext : UINT_PTR -> "usize"
// dwTimeout : DWORD -> "u32"
// rgReaderStates : SCARD_READERSTATEW* in/out -> "pointer"
// cReaders : DWORD -> "u32"
// 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 SCardGetStatusChangeW(
    size_t hContext,
    uint32_t dwTimeout,
    void* rgReaderStates,
    uint32_t cReaders);
C, "WinSCard.dll");
// $ffi->SCardGetStatusChangeW(hContext, dwTimeout, rgReaderStates, cReaders);
// hContext : UINT_PTR
// dwTimeout : DWORD
// rgReaderStates : SCARD_READERSTATEW* in/out
// cReaders : DWORD
// 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 Winscard extends StdCallLibrary {
    Winscard INSTANCE = Native.load("winscard", Winscard.class, W32APIOptions.UNICODE_OPTIONS);
    int SCardGetStatusChangeW(
        long hContext,   // UINT_PTR
        int dwTimeout,   // DWORD
        Pointer rgReaderStates,   // SCARD_READERSTATEW* in/out
        int cReaders   // DWORD
    );
}
// Unicode(-W): WString(入力)/char[](出力)で UTF-16 をマーシャリング。

@[Link("winscard")]
lib LibWinSCard
  fun SCardGetStatusChangeW = SCardGetStatusChangeW(
    hContext : LibC::SizeT,   # UINT_PTR
    dwTimeout : UInt32,   # DWORD
    rgReaderStates : SCARD_READERSTATEW*,   # SCARD_READERSTATEW* in/out
    cReaders : UInt32   # DWORD
  ) : 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 SCardGetStatusChangeWNative = Int32 Function(UintPtr, Uint32, Pointer<Void>, Uint32);
typedef SCardGetStatusChangeWDart = int Function(int, int, Pointer<Void>, int);
final SCardGetStatusChangeW = DynamicLibrary.open('WinSCard.dll')
    .lookupFunction<SCardGetStatusChangeWNative, SCardGetStatusChangeWDart>('SCardGetStatusChangeW');
// hContext : UINT_PTR -> UintPtr
// dwTimeout : DWORD -> Uint32
// rgReaderStates : SCARD_READERSTATEW* in/out -> Pointer<Void>
// cReaders : DWORD -> Uint32
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function SCardGetStatusChangeW(
  hContext: NativeUInt;   // UINT_PTR
  dwTimeout: DWORD;   // DWORD
  rgReaderStates: Pointer;   // SCARD_READERSTATEW* in/out
  cReaders: DWORD   // DWORD
): Integer; stdcall;
  external 'WinSCard.dll' name 'SCardGetStatusChangeW';

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

foreign import stdcall safe "SCardGetStatusChangeW"
  c_SCardGetStatusChangeW :: CUIntPtr -> Word32 -> Ptr () -> Word32 -> IO Int32
-- hContext : UINT_PTR -> CUIntPtr
-- dwTimeout : DWORD -> Word32
-- rgReaderStates : SCARD_READERSTATEW* in/out -> Ptr ()
-- cReaders : DWORD -> 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 scardgetstatuschangew =
  foreign "SCardGetStatusChangeW"
    (size_t @-> uint32_t @-> (ptr void) @-> uint32_t @-> returning int32_t)
(* hContext : UINT_PTR -> size_t *)
(* dwTimeout : DWORD -> uint32_t *)
(* rgReaderStates : SCARD_READERSTATEW* in/out -> (ptr void) *)
(* cReaders : DWORD -> 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 winscard (t "WinSCard.dll"))
(cffi:use-foreign-library winscard)

(cffi:defcfun ("SCardGetStatusChangeW" scard-get-status-change-w :convention :stdcall) :int32
  (h-context :uint64)   ; UINT_PTR
  (dw-timeout :uint32)   ; DWORD
  (rg-reader-states :pointer)   ; SCARD_READERSTATEW* in/out
  (c-readers :uint32))   ; DWORD
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $SCardGetStatusChangeW = Win32::API::More->new('WinSCard',
    'int SCardGetStatusChangeW(WPARAM hContext, DWORD dwTimeout, LPVOID rgReaderStates, DWORD cReaders)');
# my $ret = $SCardGetStatusChangeW->Call($hContext, $dwTimeout, $rgReaderStates, $cReaders);
# hContext : UINT_PTR -> WPARAM
# dwTimeout : DWORD -> DWORD
# rgReaderStates : SCARD_READERSTATEW* in/out -> LPVOID
# cReaders : DWORD -> DWORD
# 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。