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QueryContextAttributesA

関数

セキュリティコンテキストの属性情報を取得する(ANSI版)。

DLLSECUR32.dll文字セットANSI (-A)呼出規約winapi対応OSWindows Vista 以降

シグネチャ

// SECUR32.dll  (ANSI / -A)
#include <windows.h>

HRESULT QueryContextAttributesA(
    SecHandle* phContext,
    SECPKG_ATTR ulAttribute,
    void* pBuffer
);

パラメーター

名前	型	方向
phContext	SecHandle*	in
ulAttribute	SECPKG_ATTR	in
pBuffer	void*	out

戻り値の型: HRESULT

各言語での呼び出し定義

// SECUR32.dll  (ANSI / -A)
#include <windows.h>

HRESULT QueryContextAttributesA(
    SecHandle* phContext,
    SECPKG_ATTR ulAttribute,
    void* pBuffer
);

[DllImport("SECUR32.dll", CharSet = CharSet.Ansi, ExactSpelling = true)]
static extern int QueryContextAttributesA(
    IntPtr phContext,   // SecHandle*
    uint ulAttribute,   // SECPKG_ATTR
    IntPtr pBuffer   // void* out
);

<DllImport("SECUR32.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function QueryContextAttributesA(
    phContext As IntPtr,   ' SecHandle*
    ulAttribute As UInteger,   ' SECPKG_ATTR
    pBuffer As IntPtr   ' void* out
) As Integer
End Function

' phContext : SecHandle*
' ulAttribute : SECPKG_ATTR
' pBuffer : void* out
Declare PtrSafe Function QueryContextAttributesA Lib "secur32" ( _
    ByVal phContext As LongPtr, _
    ByVal ulAttribute As Long, _
    ByVal pBuffer 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

QueryContextAttributesA = ctypes.windll.secur32.QueryContextAttributesA
QueryContextAttributesA.restype = ctypes.c_int
QueryContextAttributesA.argtypes = [
    ctypes.c_void_p,  # phContext : SecHandle*
    wintypes.DWORD,  # ulAttribute : SECPKG_ATTR
    ctypes.POINTER(None),  # pBuffer : void* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('SECUR32.dll')
QueryContextAttributesA = Fiddle::Function.new(
  lib['QueryContextAttributesA'],
  [
    Fiddle::TYPE_VOIDP,  # phContext : SecHandle*
    -Fiddle::TYPE_INT,  # ulAttribute : SECPKG_ATTR
    Fiddle::TYPE_VOIDP,  # pBuffer : void* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "secur32")]
extern "system" {
    fn QueryContextAttributesA(
        phContext: *mut SecHandle,  // SecHandle*
        ulAttribute: u32,  // SECPKG_ATTR
        pBuffer: *mut ()  // void* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("SECUR32.dll", CharSet = CharSet.Ansi)]
public static extern int QueryContextAttributesA(IntPtr phContext, uint ulAttribute, IntPtr pBuffer);
"@
$api = Add-Type -MemberDefinition $sig -Name 'SECUR32_QueryContextAttributesA' -Namespace Win32 -PassThru
# $api::QueryContextAttributesA(phContext, ulAttribute, pBuffer)

#uselib "SECUR32.dll"
#func global QueryContextAttributesA "QueryContextAttributesA" sptr, sptr, sptr
; QueryContextAttributesA varptr(phContext), ulAttribute, pBuffer   ; 戻り値は stat
; phContext : SecHandle* -> "sptr"
; ulAttribute : SECPKG_ATTR -> "sptr"
; pBuffer : void* 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 "SECUR32.dll"
#cfunc global QueryContextAttributesA "QueryContextAttributesA" var, int, sptr
; res = QueryContextAttributesA(phContext, ulAttribute, pBuffer)
; phContext : SecHandle* -> "var"
; ulAttribute : SECPKG_ATTR -> "int"
; pBuffer : void* out -> "sptr"
; ※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 "SECUR32.dll"
#cfunc global QueryContextAttributesA "QueryContextAttributesA" sptr, int, sptr
; res = QueryContextAttributesA(varptr(phContext), ulAttribute, pBuffer)
; phContext : SecHandle* -> "sptr"
; ulAttribute : SECPKG_ATTR -> "int"
; pBuffer : void* 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:

; HRESULT QueryContextAttributesA(SecHandle* phContext, SECPKG_ATTR ulAttribute, void* pBuffer)
#uselib "SECUR32.dll"
#cfunc global QueryContextAttributesA "QueryContextAttributesA" var, int, intptr
; res = QueryContextAttributesA(phContext, ulAttribute, pBuffer)
; phContext : SecHandle* -> "var"
; ulAttribute : SECPKG_ATTR -> "int"
; pBuffer : void* out -> "intptr"
; ※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。; HRESULT QueryContextAttributesA(SecHandle* phContext, SECPKG_ATTR ulAttribute, void* pBuffer)
#uselib "SECUR32.dll"
#cfunc global QueryContextAttributesA "QueryContextAttributesA" intptr, int, intptr
; res = QueryContextAttributesA(varptr(phContext), ulAttribute, pBuffer)
; phContext : SecHandle* -> "intptr"
; ulAttribute : SECPKG_ATTR -> "int"
; pBuffer : void* 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 (
	secur32 = windows.NewLazySystemDLL("SECUR32.dll")
	procQueryContextAttributesA = secur32.NewProc("QueryContextAttributesA")
)

// phContext (SecHandle*), ulAttribute (SECPKG_ATTR), pBuffer (void* out)
r1, _, err := procQueryContextAttributesA.Call(
	uintptr(phContext),
	uintptr(ulAttribute),
	uintptr(pBuffer),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function QueryContextAttributesA(
  phContext: Pointer;   // SecHandle*
  ulAttribute: DWORD;   // SECPKG_ATTR
  pBuffer: Pointer   // void* out
): Integer; stdcall;
  external 'SECUR32.dll' name 'QueryContextAttributesA';

result := DllCall("SECUR32\QueryContextAttributesA"
    , "Ptr", phContext   ; SecHandle*
    , "UInt", ulAttribute   ; SECPKG_ATTR
    , "Ptr", pBuffer   ; void* out
    , "Int")   ; return: HRESULT

●QueryContextAttributesA(phContext, ulAttribute, pBuffer) = DLL("SECUR32.dll", "int QueryContextAttributesA(void*, dword, void*)")
# 呼び出し: QueryContextAttributesA(phContext, ulAttribute, pBuffer)
# phContext : SecHandle* -> "void*"
# ulAttribute : SECPKG_ATTR -> "dword"
# pBuffer : void* 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)。