SCardGetProviderIdW

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

INT SCardGetProviderIdW(
    UINT_PTR hContext,
    LPCWSTR szCard,
    GUID* pguidProviderId
);

<DllImport("WinSCard.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function SCardGetProviderIdW(
    hContext As UIntPtr,   ' UINT_PTR
    <MarshalAs(UnmanagedType.LPWStr)> szCard As String,   ' LPCWSTR
    <Out> ByRef pguidProviderId As Guid   ' GUID* out
) As Integer
End Function

' hContext : UINT_PTR
' szCard : LPCWSTR
' pguidProviderId : GUID* out
Declare PtrSafe Function SCardGetProviderIdW Lib "winscard" ( _
    ByVal hContext As LongPtr, _
    ByVal szCard As LongPtr, _
    ByVal pguidProviderId 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

SCardGetProviderIdW = ctypes.windll.winscard.SCardGetProviderIdW
SCardGetProviderIdW.restype = ctypes.c_int
SCardGetProviderIdW.argtypes = [
    ctypes.c_size_t,  # hContext : UINT_PTR
    wintypes.LPCWSTR,  # szCard : LPCWSTR
    ctypes.c_void_p,  # pguidProviderId : GUID* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WinSCard.dll')
SCardGetProviderIdW = Fiddle::Function.new(
  lib['SCardGetProviderIdW'],
  [
    Fiddle::TYPE_UINTPTR_T,  # hContext : UINT_PTR
    Fiddle::TYPE_VOIDP,  # szCard : LPCWSTR
    Fiddle::TYPE_VOIDP,  # pguidProviderId : GUID* out
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "winscard")]
extern "system" {
    fn SCardGetProviderIdW(
        hContext: usize,  // UINT_PTR
        szCard: *const u16,  // LPCWSTR
        pguidProviderId: *mut GUID  // GUID* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("WinSCard.dll", CharSet = CharSet.Unicode)]
public static extern int SCardGetProviderIdW(UIntPtr hContext, [MarshalAs(UnmanagedType.LPWStr)] string szCard, out Guid pguidProviderId);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WinSCard_SCardGetProviderIdW' -Namespace Win32 -PassThru
# $api::SCardGetProviderIdW(hContext, szCard, pguidProviderId)

#uselib "WinSCard.dll"
#func global SCardGetProviderIdW "SCardGetProviderIdW" wptr, wptr, wptr
; SCardGetProviderIdW hContext, szCard, varptr(pguidProviderId)   ; 戻り値は stat
; hContext : UINT_PTR -> "wptr"
; szCard : LPCWSTR -> "wptr"
; pguidProviderId : GUID* 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 SCardGetProviderIdW "SCardGetProviderIdW" sptr, wstr, var
; res = SCardGetProviderIdW(hContext, szCard, pguidProviderId)
; hContext : UINT_PTR -> "sptr"
; szCard : LPCWSTR -> "wstr"
; pguidProviderId : GUID* 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 SCardGetProviderIdW(UINT_PTR hContext, LPCWSTR szCard, GUID* pguidProviderId)
#uselib "WinSCard.dll"
#cfunc global SCardGetProviderIdW "SCardGetProviderIdW" intptr, wstr, var
; res = SCardGetProviderIdW(hContext, szCard, pguidProviderId)
; hContext : UINT_PTR -> "intptr"
; szCard : LPCWSTR -> "wstr"
; pguidProviderId : GUID* 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")
	procSCardGetProviderIdW = winscard.NewProc("SCardGetProviderIdW")
)

// hContext (UINT_PTR), szCard (LPCWSTR), pguidProviderId (GUID* out)
r1, _, err := procSCardGetProviderIdW.Call(
	uintptr(hContext),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(szCard))),
	uintptr(pguidProviderId),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function SCardGetProviderIdW(
  hContext: NativeUInt;   // UINT_PTR
  szCard: PWideChar;   // LPCWSTR
  pguidProviderId: PGUID   // GUID* out
): Integer; stdcall;
  external 'WinSCard.dll' name 'SCardGetProviderIdW';

result := DllCall("WinSCard\SCardGetProviderIdW"
    , "UPtr", hContext   ; UINT_PTR
    , "WStr", szCard   ; LPCWSTR
    , "Ptr", pguidProviderId   ; GUID* out
    , "Int")   ; return: INT

●SCardGetProviderIdW(hContext, szCard, pguidProviderId) = DLL("WinSCard.dll", "int SCardGetProviderIdW(int, char*, void*)")
# 呼び出し: SCardGetProviderIdW(hContext, szCard, pguidProviderId)
# hContext : UINT_PTR -> "int"
# szCard : LPCWSTR -> "char*"
# pguidProviderId : GUID* 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。