QueryCredentialsAttributesW

// SECUR32.dll  (Unicode / -W)
#include <windows.h>

HRESULT QueryCredentialsAttributesW(
    SecHandle* phCredential,
    DWORD ulAttribute,
    void* pBuffer
);

<DllImport("SECUR32.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function QueryCredentialsAttributesW(
    phCredential As IntPtr,   ' SecHandle*
    ulAttribute As UInteger,   ' DWORD
    pBuffer As IntPtr   ' void* in/out
) As Integer
End Function

' phCredential : SecHandle*
' ulAttribute : DWORD
' pBuffer : void* in/out
Declare PtrSafe Function QueryCredentialsAttributesW Lib "secur32" ( _
    ByVal phCredential As LongPtr, _
    ByVal ulAttribute As Long, _
    ByVal pBuffer 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

QueryCredentialsAttributesW = ctypes.windll.secur32.QueryCredentialsAttributesW
QueryCredentialsAttributesW.restype = ctypes.c_int
QueryCredentialsAttributesW.argtypes = [
    ctypes.c_void_p,  # phCredential : SecHandle*
    wintypes.DWORD,  # ulAttribute : DWORD
    ctypes.POINTER(None),  # pBuffer : void* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('SECUR32.dll')
QueryCredentialsAttributesW = Fiddle::Function.new(
  lib['QueryCredentialsAttributesW'],
  [
    Fiddle::TYPE_VOIDP,  # phCredential : SecHandle*
    -Fiddle::TYPE_INT,  # ulAttribute : DWORD
    Fiddle::TYPE_VOIDP,  # pBuffer : void* in/out
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

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

$sig = @"
[DllImport("SECUR32.dll", CharSet = CharSet.Unicode)]
public static extern int QueryCredentialsAttributesW(IntPtr phCredential, uint ulAttribute, IntPtr pBuffer);
"@
$api = Add-Type -MemberDefinition $sig -Name 'SECUR32_QueryCredentialsAttributesW' -Namespace Win32 -PassThru
# $api::QueryCredentialsAttributesW(phCredential, ulAttribute, pBuffer)

#uselib "SECUR32.dll"
#func global QueryCredentialsAttributesW "QueryCredentialsAttributesW" wptr, wptr, wptr
; QueryCredentialsAttributesW varptr(phCredential), ulAttribute, pBuffer   ; 戻り値は stat
; phCredential : SecHandle* -> "wptr"
; ulAttribute : DWORD -> "wptr"
; pBuffer : void* 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 "SECUR32.dll"
#cfunc global QueryCredentialsAttributesW "QueryCredentialsAttributesW" var, int, sptr
; res = QueryCredentialsAttributesW(phCredential, ulAttribute, pBuffer)
; phCredential : SecHandle* -> "var"
; ulAttribute : DWORD -> "int"
; pBuffer : void* in/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。

; HRESULT QueryCredentialsAttributesW(SecHandle* phCredential, DWORD ulAttribute, void* pBuffer)
#uselib "SECUR32.dll"
#cfunc global QueryCredentialsAttributesW "QueryCredentialsAttributesW" var, int, intptr
; res = QueryCredentialsAttributesW(phCredential, ulAttribute, pBuffer)
; phCredential : SecHandle* -> "var"
; ulAttribute : DWORD -> "int"
; pBuffer : void* in/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。

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

var (
	secur32 = windows.NewLazySystemDLL("SECUR32.dll")
	procQueryCredentialsAttributesW = secur32.NewProc("QueryCredentialsAttributesW")
)

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

function QueryCredentialsAttributesW(
  phCredential: Pointer;   // SecHandle*
  ulAttribute: DWORD;   // DWORD
  pBuffer: Pointer   // void* in/out
): Integer; stdcall;
  external 'SECUR32.dll' name 'QueryCredentialsAttributesW';

result := DllCall("SECUR32\QueryCredentialsAttributesW"
    , "Ptr", phCredential   ; SecHandle*
    , "UInt", ulAttribute   ; DWORD
    , "Ptr", pBuffer   ; void* in/out
    , "Int")   ; return: HRESULT

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