QueryContextAttributesExW

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

HRESULT QueryContextAttributesExW(
    SecHandle* phContext,
    SECPKG_ATTR ulAttribute,
    void* pBuffer,
    DWORD cbBuffer
);

<DllImport("SspiCli.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function QueryContextAttributesExW(
    phContext As IntPtr,   ' SecHandle*
    ulAttribute As UInteger,   ' SECPKG_ATTR
    pBuffer As IntPtr,   ' void* out
    cbBuffer As UInteger   ' DWORD
) As Integer
End Function

' phContext : SecHandle*
' ulAttribute : SECPKG_ATTR
' pBuffer : void* out
' cbBuffer : DWORD
Declare PtrSafe Function QueryContextAttributesExW Lib "sspicli" ( _
    ByVal phContext As LongPtr, _
    ByVal ulAttribute As Long, _
    ByVal pBuffer As LongPtr, _
    ByVal cbBuffer 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

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

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('SspiCli.dll')
QueryContextAttributesExW = Fiddle::Function.new(
  lib['QueryContextAttributesExW'],
  [
    Fiddle::TYPE_VOIDP,  # phContext : SecHandle*
    -Fiddle::TYPE_INT,  # ulAttribute : SECPKG_ATTR
    Fiddle::TYPE_VOIDP,  # pBuffer : void* out
    -Fiddle::TYPE_INT,  # cbBuffer : DWORD
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

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

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

#uselib "SspiCli.dll"
#func global QueryContextAttributesExW "QueryContextAttributesExW" wptr, wptr, wptr, wptr
; QueryContextAttributesExW varptr(phContext), ulAttribute, pBuffer, cbBuffer   ; 戻り値は stat
; phContext : SecHandle* -> "wptr"
; ulAttribute : SECPKG_ATTR -> "wptr"
; pBuffer : void* out -> "wptr"
; cbBuffer : 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。

#uselib "SspiCli.dll"
#cfunc global QueryContextAttributesExW "QueryContextAttributesExW" var, int, sptr, int
; res = QueryContextAttributesExW(phContext, ulAttribute, pBuffer, cbBuffer)
; phContext : SecHandle* -> "var"
; ulAttribute : SECPKG_ATTR -> "int"
; pBuffer : void* out -> "sptr"
; cbBuffer : DWORD -> "int"
; ※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 QueryContextAttributesExW(SecHandle* phContext, SECPKG_ATTR ulAttribute, void* pBuffer, DWORD cbBuffer)
#uselib "SspiCli.dll"
#cfunc global QueryContextAttributesExW "QueryContextAttributesExW" var, int, intptr, int
; res = QueryContextAttributesExW(phContext, ulAttribute, pBuffer, cbBuffer)
; phContext : SecHandle* -> "var"
; ulAttribute : SECPKG_ATTR -> "int"
; pBuffer : void* out -> "intptr"
; cbBuffer : DWORD -> "int"
; ※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 (
	sspicli = windows.NewLazySystemDLL("SspiCli.dll")
	procQueryContextAttributesExW = sspicli.NewProc("QueryContextAttributesExW")
)

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

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

result := DllCall("SspiCli\QueryContextAttributesExW"
    , "Ptr", phContext   ; SecHandle*
    , "UInt", ulAttribute   ; SECPKG_ATTR
    , "Ptr", pBuffer   ; void* out
    , "UInt", cbBuffer   ; DWORD
    , "Int")   ; return: HRESULT

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