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SCardStatusA

関数

接続中のスマートカードの状態やリーダー名を取得する。

DLLWinSCard.dll文字セットANSI (-A)呼出規約winapi対応OSWindows XP 以降

シグネチャ

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

INT SCardStatusA(
    UINT_PTR hCard,
    LPSTR mszReaderNames,   // optional
    DWORD* pcchReaderLen,   // optional
    DWORD* pdwState,   // optional
    DWORD* pdwProtocol,   // optional
    BYTE* pbAtr,   // optional
    DWORD* pcbAtrLen   // optional
);

パラメーター

名前	型	方向
hCard	UINT_PTR	in
mszReaderNames	LPSTR	outoptional
pcchReaderLen	DWORD*	inoutoptional
pdwState	DWORD*	outoptional
pdwProtocol	DWORD*	outoptional
pbAtr	BYTE*	outoptional
pcbAtrLen	DWORD*	inoutoptional

戻り値の型: INT

各言語での呼び出し定義

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

INT SCardStatusA(
    UINT_PTR hCard,
    LPSTR mszReaderNames,   // optional
    DWORD* pcchReaderLen,   // optional
    DWORD* pdwState,   // optional
    DWORD* pdwProtocol,   // optional
    BYTE* pbAtr,   // optional
    DWORD* pcbAtrLen   // optional
);

[DllImport("WinSCard.dll", CharSet = CharSet.Ansi, ExactSpelling = true)]
static extern int SCardStatusA(
    UIntPtr hCard,   // UINT_PTR
    [MarshalAs(UnmanagedType.LPStr)] System.Text.StringBuilder mszReaderNames,   // LPSTR optional, out
    IntPtr pcchReaderLen,   // DWORD* optional, in/out
    IntPtr pdwState,   // DWORD* optional, out
    IntPtr pdwProtocol,   // DWORD* optional, out
    IntPtr pbAtr,   // BYTE* optional, out
    IntPtr pcbAtrLen   // DWORD* optional, in/out
);

<DllImport("WinSCard.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function SCardStatusA(
    hCard As UIntPtr,   ' UINT_PTR
    <MarshalAs(UnmanagedType.LPStr)> mszReaderNames As System.Text.StringBuilder,   ' LPSTR optional, out
    pcchReaderLen As IntPtr,   ' DWORD* optional, in/out
    pdwState As IntPtr,   ' DWORD* optional, out
    pdwProtocol As IntPtr,   ' DWORD* optional, out
    pbAtr As IntPtr,   ' BYTE* optional, out
    pcbAtrLen As IntPtr   ' DWORD* optional, in/out
) As Integer
End Function

' hCard : UINT_PTR
' mszReaderNames : LPSTR optional, out
' pcchReaderLen : DWORD* optional, in/out
' pdwState : DWORD* optional, out
' pdwProtocol : DWORD* optional, out
' pbAtr : BYTE* optional, out
' pcbAtrLen : DWORD* optional, in/out
Declare PtrSafe Function SCardStatusA Lib "winscard" ( _
    ByVal hCard As LongPtr, _
    ByVal mszReaderNames As String, _
    ByVal pcchReaderLen As LongPtr, _
    ByVal pdwState As LongPtr, _
    ByVal pdwProtocol As LongPtr, _
    ByVal pbAtr As LongPtr, _
    ByVal pcbAtrLen As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

SCardStatusA = ctypes.windll.winscard.SCardStatusA
SCardStatusA.restype = ctypes.c_int
SCardStatusA.argtypes = [
    ctypes.c_size_t,  # hCard : UINT_PTR
    wintypes.LPSTR,  # mszReaderNames : LPSTR optional, out
    ctypes.POINTER(wintypes.DWORD),  # pcchReaderLen : DWORD* optional, in/out
    ctypes.POINTER(wintypes.DWORD),  # pdwState : DWORD* optional, out
    ctypes.POINTER(wintypes.DWORD),  # pdwProtocol : DWORD* optional, out
    ctypes.POINTER(ctypes.c_ubyte),  # pbAtr : BYTE* optional, out
    ctypes.POINTER(wintypes.DWORD),  # pcbAtrLen : DWORD* optional, in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WinSCard.dll')
SCardStatusA = Fiddle::Function.new(
  lib['SCardStatusA'],
  [
    Fiddle::TYPE_UINTPTR_T,  # hCard : UINT_PTR
    Fiddle::TYPE_VOIDP,  # mszReaderNames : LPSTR optional, out
    Fiddle::TYPE_VOIDP,  # pcchReaderLen : DWORD* optional, in/out
    Fiddle::TYPE_VOIDP,  # pdwState : DWORD* optional, out
    Fiddle::TYPE_VOIDP,  # pdwProtocol : DWORD* optional, out
    Fiddle::TYPE_VOIDP,  # pbAtr : BYTE* optional, out
    Fiddle::TYPE_VOIDP,  # pcbAtrLen : DWORD* optional, in/out
  ],
  Fiddle::TYPE_INT)

#[link(name = "winscard")]
extern "system" {
    fn SCardStatusA(
        hCard: usize,  // UINT_PTR
        mszReaderNames: *mut u8,  // LPSTR optional, out
        pcchReaderLen: *mut u32,  // DWORD* optional, in/out
        pdwState: *mut u32,  // DWORD* optional, out
        pdwProtocol: *mut u32,  // DWORD* optional, out
        pbAtr: *mut u8,  // BYTE* optional, out
        pcbAtrLen: *mut u32  // DWORD* optional, in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("WinSCard.dll", CharSet = CharSet.Ansi)]
public static extern int SCardStatusA(UIntPtr hCard, [MarshalAs(UnmanagedType.LPStr)] System.Text.StringBuilder mszReaderNames, IntPtr pcchReaderLen, IntPtr pdwState, IntPtr pdwProtocol, IntPtr pbAtr, IntPtr pcbAtrLen);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WinSCard_SCardStatusA' -Namespace Win32 -PassThru
# $api::SCardStatusA(hCard, mszReaderNames, pcchReaderLen, pdwState, pdwProtocol, pbAtr, pcbAtrLen)

#uselib "WinSCard.dll"
#func global SCardStatusA "SCardStatusA" sptr, sptr, sptr, sptr, sptr, sptr, sptr
; SCardStatusA hCard, varptr(mszReaderNames), varptr(pcchReaderLen), varptr(pdwState), varptr(pdwProtocol), varptr(pbAtr), varptr(pcbAtrLen)   ; 戻り値は stat
; hCard : UINT_PTR -> "sptr"
; mszReaderNames : LPSTR optional, out -> "sptr"
; pcchReaderLen : DWORD* optional, in/out -> "sptr"
; pdwState : DWORD* optional, out -> "sptr"
; pdwProtocol : DWORD* optional, out -> "sptr"
; pbAtr : BYTE* optional, out -> "sptr"
; pcbAtrLen : DWORD* optional, in/out -> "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。

出力引数:

#uselib "WinSCard.dll"
#cfunc global SCardStatusA "SCardStatusA" sptr, var, var, var, var, var, var
; res = SCardStatusA(hCard, mszReaderNames, pcchReaderLen, pdwState, pdwProtocol, pbAtr, pcbAtrLen)
; hCard : UINT_PTR -> "sptr"
; mszReaderNames : LPSTR optional, out -> "var"
; pcchReaderLen : DWORD* optional, in/out -> "var"
; pdwState : DWORD* optional, out -> "var"
; pdwProtocol : DWORD* optional, out -> "var"
; pbAtr : BYTE* optional, out -> "var"
; pcbAtrLen : DWORD* optional, 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。#uselib "WinSCard.dll"
#cfunc global SCardStatusA "SCardStatusA" sptr, sptr, sptr, sptr, sptr, sptr, sptr
; res = SCardStatusA(hCard, varptr(mszReaderNames), varptr(pcchReaderLen), varptr(pdwState), varptr(pdwProtocol), varptr(pbAtr), varptr(pcbAtrLen))
; hCard : UINT_PTR -> "sptr"
; mszReaderNames : LPSTR optional, out -> "sptr"
; pcchReaderLen : DWORD* optional, in/out -> "sptr"
; pdwState : DWORD* optional, out -> "sptr"
; pdwProtocol : DWORD* optional, out -> "sptr"
; pbAtr : BYTE* optional, out -> "sptr"
; pcbAtrLen : DWORD* optional, in/out -> "sptr"
; ※出力/バッファ引数はポインタ方式(token=sptr / 呼び出しは varptr(変数))。

出力引数:

; INT SCardStatusA(UINT_PTR hCard, LPSTR mszReaderNames, DWORD* pcchReaderLen, DWORD* pdwState, DWORD* pdwProtocol, BYTE* pbAtr, DWORD* pcbAtrLen)
#uselib "WinSCard.dll"
#cfunc global SCardStatusA "SCardStatusA" intptr, var, var, var, var, var, var
; res = SCardStatusA(hCard, mszReaderNames, pcchReaderLen, pdwState, pdwProtocol, pbAtr, pcbAtrLen)
; hCard : UINT_PTR -> "intptr"
; mszReaderNames : LPSTR optional, out -> "var"
; pcchReaderLen : DWORD* optional, in/out -> "var"
; pdwState : DWORD* optional, out -> "var"
; pdwProtocol : DWORD* optional, out -> "var"
; pbAtr : BYTE* optional, out -> "var"
; pcbAtrLen : DWORD* optional, 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 SCardStatusA(UINT_PTR hCard, LPSTR mszReaderNames, DWORD* pcchReaderLen, DWORD* pdwState, DWORD* pdwProtocol, BYTE* pbAtr, DWORD* pcbAtrLen)
#uselib "WinSCard.dll"
#cfunc global SCardStatusA "SCardStatusA" intptr, intptr, intptr, intptr, intptr, intptr, intptr
; res = SCardStatusA(hCard, varptr(mszReaderNames), varptr(pcchReaderLen), varptr(pdwState), varptr(pdwProtocol), varptr(pbAtr), varptr(pcbAtrLen))
; hCard : UINT_PTR -> "intptr"
; mszReaderNames : LPSTR optional, out -> "intptr"
; pcchReaderLen : DWORD* optional, in/out -> "intptr"
; pdwState : DWORD* optional, out -> "intptr"
; pdwProtocol : DWORD* optional, out -> "intptr"
; pbAtr : BYTE* optional, out -> "intptr"
; pcbAtrLen : DWORD* optional, in/out -> "intptr"
; ※出力/バッファ引数はポインタ方式(token=intptr / 呼び出しは varptr(変数))。

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

var (
	winscard = windows.NewLazySystemDLL("WinSCard.dll")
	procSCardStatusA = winscard.NewProc("SCardStatusA")
)

// hCard (UINT_PTR), mszReaderNames (LPSTR optional, out), pcchReaderLen (DWORD* optional, in/out), pdwState (DWORD* optional, out), pdwProtocol (DWORD* optional, out), pbAtr (BYTE* optional, out), pcbAtrLen (DWORD* optional, in/out)
r1, _, err := procSCardStatusA.Call(
	uintptr(hCard),
	uintptr(mszReaderNames),
	uintptr(pcchReaderLen),
	uintptr(pdwState),
	uintptr(pdwProtocol),
	uintptr(pbAtr),
	uintptr(pcbAtrLen),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function SCardStatusA(
  hCard: NativeUInt;   // UINT_PTR
  mszReaderNames: PAnsiChar;   // LPSTR optional, out
  pcchReaderLen: Pointer;   // DWORD* optional, in/out
  pdwState: Pointer;   // DWORD* optional, out
  pdwProtocol: Pointer;   // DWORD* optional, out
  pbAtr: Pointer;   // BYTE* optional, out
  pcbAtrLen: Pointer   // DWORD* optional, in/out
): Integer; stdcall;
  external 'WinSCard.dll' name 'SCardStatusA';

result := DllCall("WinSCard\SCardStatusA"
    , "UPtr", hCard   ; UINT_PTR
    , "Ptr", mszReaderNames   ; LPSTR optional, out
    , "Ptr", pcchReaderLen   ; DWORD* optional, in/out
    , "Ptr", pdwState   ; DWORD* optional, out
    , "Ptr", pdwProtocol   ; DWORD* optional, out
    , "Ptr", pbAtr   ; BYTE* optional, out
    , "Ptr", pcbAtrLen   ; DWORD* optional, in/out
    , "Int")   ; return: INT

●SCardStatusA(hCard, mszReaderNames, pcchReaderLen, pdwState, pdwProtocol, pbAtr, pcbAtrLen) = DLL("WinSCard.dll", "int SCardStatusA(int, char*, void*, void*, void*, void*, void*)")
# 呼び出し: SCardStatusA(hCard, mszReaderNames, pcchReaderLen, pdwState, pdwProtocol, pbAtr, pcbAtrLen)
# hCard : UINT_PTR -> "int"
# mszReaderNames : LPSTR optional, out -> "char*"
# pcchReaderLen : DWORD* optional, in/out -> "void*"
# pdwState : DWORD* optional, out -> "void*"
# pdwProtocol : DWORD* optional, out -> "void*"
# pbAtr : BYTE* optional, out -> "void*"
# pcbAtrLen : DWORD* optional, 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)。