SCardListReadersWithDeviceInstanceIdW

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

INT SCardListReadersWithDeviceInstanceIdW(
    UINT_PTR hContext,
    LPCWSTR szDeviceInstanceId,
    LPWSTR mszReaders,   // optional
    DWORD* pcchReaders
);

<DllImport("WinSCard.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function SCardListReadersWithDeviceInstanceIdW(
    hContext As UIntPtr,   ' UINT_PTR
    <MarshalAs(UnmanagedType.LPWStr)> szDeviceInstanceId As String,   ' LPCWSTR
    <MarshalAs(UnmanagedType.LPWStr)> mszReaders As System.Text.StringBuilder,   ' LPWSTR optional, out
    ByRef pcchReaders As UInteger   ' DWORD* in/out
) As Integer
End Function

' hContext : UINT_PTR
' szDeviceInstanceId : LPCWSTR
' mszReaders : LPWSTR optional, out
' pcchReaders : DWORD* in/out
Declare PtrSafe Function SCardListReadersWithDeviceInstanceIdW Lib "winscard" ( _
    ByVal hContext As LongPtr, _
    ByVal szDeviceInstanceId As LongPtr, _
    ByVal mszReaders As LongPtr, _
    ByRef pcchReaders 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

SCardListReadersWithDeviceInstanceIdW = ctypes.windll.winscard.SCardListReadersWithDeviceInstanceIdW
SCardListReadersWithDeviceInstanceIdW.restype = ctypes.c_int
SCardListReadersWithDeviceInstanceIdW.argtypes = [
    ctypes.c_size_t,  # hContext : UINT_PTR
    wintypes.LPCWSTR,  # szDeviceInstanceId : LPCWSTR
    wintypes.LPWSTR,  # mszReaders : LPWSTR optional, out
    ctypes.POINTER(wintypes.DWORD),  # pcchReaders : DWORD* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WinSCard.dll')
SCardListReadersWithDeviceInstanceIdW = Fiddle::Function.new(
  lib['SCardListReadersWithDeviceInstanceIdW'],
  [
    Fiddle::TYPE_UINTPTR_T,  # hContext : UINT_PTR
    Fiddle::TYPE_VOIDP,  # szDeviceInstanceId : LPCWSTR
    Fiddle::TYPE_VOIDP,  # mszReaders : LPWSTR optional, out
    Fiddle::TYPE_VOIDP,  # pcchReaders : DWORD* in/out
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "winscard")]
extern "system" {
    fn SCardListReadersWithDeviceInstanceIdW(
        hContext: usize,  // UINT_PTR
        szDeviceInstanceId: *const u16,  // LPCWSTR
        mszReaders: *mut u16,  // LPWSTR optional, out
        pcchReaders: *mut u32  // DWORD* in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("WinSCard.dll", CharSet = CharSet.Unicode)]
public static extern int SCardListReadersWithDeviceInstanceIdW(UIntPtr hContext, [MarshalAs(UnmanagedType.LPWStr)] string szDeviceInstanceId, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder mszReaders, ref uint pcchReaders);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WinSCard_SCardListReadersWithDeviceInstanceIdW' -Namespace Win32 -PassThru
# $api::SCardListReadersWithDeviceInstanceIdW(hContext, szDeviceInstanceId, mszReaders, pcchReaders)

#uselib "WinSCard.dll"
#func global SCardListReadersWithDeviceInstanceIdW "SCardListReadersWithDeviceInstanceIdW" wptr, wptr, wptr, wptr
; SCardListReadersWithDeviceInstanceIdW hContext, szDeviceInstanceId, varptr(mszReaders), varptr(pcchReaders)   ; 戻り値は stat
; hContext : UINT_PTR -> "wptr"
; szDeviceInstanceId : LPCWSTR -> "wptr"
; mszReaders : LPWSTR optional, out -> "wptr"
; pcchReaders : DWORD* in/out -> "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 "WinSCard.dll"
#cfunc global SCardListReadersWithDeviceInstanceIdW "SCardListReadersWithDeviceInstanceIdW" sptr, wstr, var, var
; res = SCardListReadersWithDeviceInstanceIdW(hContext, szDeviceInstanceId, mszReaders, pcchReaders)
; hContext : UINT_PTR -> "sptr"
; szDeviceInstanceId : LPCWSTR -> "wstr"
; mszReaders : LPWSTR optional, out -> "var"
; pcchReaders : DWORD* in/out -> "var"
; ※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。

; INT SCardListReadersWithDeviceInstanceIdW(UINT_PTR hContext, LPCWSTR szDeviceInstanceId, LPWSTR mszReaders, DWORD* pcchReaders)
#uselib "WinSCard.dll"
#cfunc global SCardListReadersWithDeviceInstanceIdW "SCardListReadersWithDeviceInstanceIdW" intptr, wstr, var, var
; res = SCardListReadersWithDeviceInstanceIdW(hContext, szDeviceInstanceId, mszReaders, pcchReaders)
; hContext : UINT_PTR -> "intptr"
; szDeviceInstanceId : LPCWSTR -> "wstr"
; mszReaders : LPWSTR optional, out -> "var"
; pcchReaders : DWORD* in/out -> "var"
; ※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 (
	winscard = windows.NewLazySystemDLL("WinSCard.dll")
	procSCardListReadersWithDeviceInstanceIdW = winscard.NewProc("SCardListReadersWithDeviceInstanceIdW")
)

// hContext (UINT_PTR), szDeviceInstanceId (LPCWSTR), mszReaders (LPWSTR optional, out), pcchReaders (DWORD* in/out)
r1, _, err := procSCardListReadersWithDeviceInstanceIdW.Call(
	uintptr(hContext),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(szDeviceInstanceId))),
	uintptr(mszReaders),
	uintptr(pcchReaders),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function SCardListReadersWithDeviceInstanceIdW(
  hContext: NativeUInt;   // UINT_PTR
  szDeviceInstanceId: PWideChar;   // LPCWSTR
  mszReaders: PWideChar;   // LPWSTR optional, out
  pcchReaders: Pointer   // DWORD* in/out
): Integer; stdcall;
  external 'WinSCard.dll' name 'SCardListReadersWithDeviceInstanceIdW';

result := DllCall("WinSCard\SCardListReadersWithDeviceInstanceIdW"
    , "UPtr", hContext   ; UINT_PTR
    , "WStr", szDeviceInstanceId   ; LPCWSTR
    , "Ptr", mszReaders   ; LPWSTR optional, out
    , "Ptr", pcchReaders   ; DWORD* in/out
    , "Int")   ; return: INT

●SCardListReadersWithDeviceInstanceIdW(hContext, szDeviceInstanceId, mszReaders, pcchReaders) = DLL("WinSCard.dll", "int SCardListReadersWithDeviceInstanceIdW(int, char*, char*, void*)")
# 呼び出し: SCardListReadersWithDeviceInstanceIdW(hContext, szDeviceInstanceId, mszReaders, pcchReaders)
# hContext : UINT_PTR -> "int"
# szDeviceInstanceId : LPCWSTR -> "char*"
# mszReaders : LPWSTR optional, out -> "char*"
# pcchReaders : DWORD* in/out -> "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)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。