DnsAcquireContextHandle_A

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

INT DnsAcquireContextHandle_A(
    DWORD CredentialFlags,
    void* Credentials,   // optional
    HANDLE* pContext
);

<DllImport("DNSAPI.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function DnsAcquireContextHandle_A(
    CredentialFlags As UInteger,   ' DWORD
    Credentials As IntPtr,   ' void* optional
    pContext As IntPtr   ' HANDLE* out
) As Integer
End Function

' CredentialFlags : DWORD
' Credentials : void* optional
' pContext : HANDLE* out
Declare PtrSafe Function DnsAcquireContextHandle_A Lib "dnsapi" ( _
    ByVal CredentialFlags As Long, _
    ByVal Credentials As LongPtr, _
    ByVal pContext 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

DnsAcquireContextHandle_A = ctypes.windll.dnsapi.DnsAcquireContextHandle_A
DnsAcquireContextHandle_A.restype = ctypes.c_int
DnsAcquireContextHandle_A.argtypes = [
    wintypes.DWORD,  # CredentialFlags : DWORD
    ctypes.POINTER(None),  # Credentials : void* optional
    ctypes.c_void_p,  # pContext : HANDLE* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('DNSAPI.dll')
DnsAcquireContextHandle_A = Fiddle::Function.new(
  lib['DnsAcquireContextHandle_A'],
  [
    -Fiddle::TYPE_INT,  # CredentialFlags : DWORD
    Fiddle::TYPE_VOIDP,  # Credentials : void* optional
    Fiddle::TYPE_VOIDP,  # pContext : HANDLE* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "dnsapi")]
extern "system" {
    fn DnsAcquireContextHandle_A(
        CredentialFlags: u32,  // DWORD
        Credentials: *mut (),  // void* optional
        pContext: *mut *mut core::ffi::c_void  // HANDLE* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("DNSAPI.dll", CharSet = CharSet.Ansi)]
public static extern int DnsAcquireContextHandle_A(uint CredentialFlags, IntPtr Credentials, IntPtr pContext);
"@
$api = Add-Type -MemberDefinition $sig -Name 'DNSAPI_DnsAcquireContextHandle_A' -Namespace Win32 -PassThru
# $api::DnsAcquireContextHandle_A(CredentialFlags, Credentials, pContext)

#uselib "DNSAPI.dll"
#func global DnsAcquireContextHandle_A "DnsAcquireContextHandle_A" sptr, sptr, sptr
; DnsAcquireContextHandle_A CredentialFlags, Credentials, pContext   ; 戻り値は stat
; CredentialFlags : DWORD -> "sptr"
; Credentials : void* optional -> "sptr"
; pContext : HANDLE* 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。

#uselib "DNSAPI.dll"
#cfunc global DnsAcquireContextHandle_A "DnsAcquireContextHandle_A" int, sptr, sptr
; res = DnsAcquireContextHandle_A(CredentialFlags, Credentials, pContext)
; CredentialFlags : DWORD -> "int"
; Credentials : void* optional -> "sptr"
; pContext : HANDLE* out -> "sptr"

; INT DnsAcquireContextHandle_A(DWORD CredentialFlags, void* Credentials, HANDLE* pContext)
#uselib "DNSAPI.dll"
#cfunc global DnsAcquireContextHandle_A "DnsAcquireContextHandle_A" int, intptr, intptr
; res = DnsAcquireContextHandle_A(CredentialFlags, Credentials, pContext)
; CredentialFlags : DWORD -> "int"
; Credentials : void* optional -> "intptr"
; pContext : HANDLE* out -> "intptr"

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

var (
	dnsapi = windows.NewLazySystemDLL("DNSAPI.dll")
	procDnsAcquireContextHandle_A = dnsapi.NewProc("DnsAcquireContextHandle_A")
)

// CredentialFlags (DWORD), Credentials (void* optional), pContext (HANDLE* out)
r1, _, err := procDnsAcquireContextHandle_A.Call(
	uintptr(CredentialFlags),
	uintptr(Credentials),
	uintptr(pContext),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function DnsAcquireContextHandle_A(
  CredentialFlags: DWORD;   // DWORD
  Credentials: Pointer;   // void* optional
  pContext: Pointer   // HANDLE* out
): Integer; stdcall;
  external 'DNSAPI.dll' name 'DnsAcquireContextHandle_A';

result := DllCall("DNSAPI\DnsAcquireContextHandle_A"
    , "UInt", CredentialFlags   ; DWORD
    , "Ptr", Credentials   ; void* optional
    , "Ptr", pContext   ; HANDLE* out
    , "Int")   ; return: INT

●DnsAcquireContextHandle_A(CredentialFlags, Credentials, pContext) = DLL("DNSAPI.dll", "int DnsAcquireContextHandle_A(dword, void*, void*)")
# 呼び出し: DnsAcquireContextHandle_A(CredentialFlags, Credentials, pContext)
# CredentialFlags : DWORD -> "dword"
# Credentials : void* optional -> "void*"
# pContext : HANDLE* 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)。

const std = @import("std");

extern "dnsapi" fn DnsAcquireContextHandle_A(
    CredentialFlags: u32, // DWORD
    Credentials: ?*anyopaque, // void* optional
    pContext: ?*anyopaque // HANDLE* out
) callconv(std.os.windows.WINAPI) i32;

proc DnsAcquireContextHandle_A(
    CredentialFlags: uint32,  # DWORD
    Credentials: pointer,  # void* optional
    pContext: pointer  # HANDLE* out
): int32 {.importc: "DnsAcquireContextHandle_A", stdcall, dynlib: "DNSAPI.dll".}

pragma(lib, "dnsapi");
extern(Windows)
int DnsAcquireContextHandle_A(
    uint CredentialFlags,   // DWORD
    void* Credentials,   // void* optional
    void* pContext   // HANDLE* out
);

ccall((:DnsAcquireContextHandle_A, "DNSAPI.dll"), stdcall, Int32,
      (UInt32, Ptr{Cvoid}, Ptr{Cvoid}),
      CredentialFlags, Credentials, pContext)
# CredentialFlags : DWORD -> UInt32
# Credentials : void* optional -> Ptr{Cvoid}
# pContext : HANDLE* out -> Ptr{Cvoid}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t DnsAcquireContextHandle_A(
    uint32_t CredentialFlags,
    void* Credentials,
    void* pContext);
]]
local dnsapi = ffi.load("dnsapi")
-- dnsapi.DnsAcquireContextHandle_A(CredentialFlags, Credentials, pContext)
-- CredentialFlags : DWORD
-- Credentials : void* optional
-- pContext : HANDLE* out
-- 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。

const koffi = require('koffi');
const lib = koffi.load('DNSAPI.dll');
const DnsAcquireContextHandle_A = lib.func('__stdcall', 'DnsAcquireContextHandle_A', 'int32_t', ['uint32_t', 'void *', 'void *']);
// DnsAcquireContextHandle_A(CredentialFlags, Credentials, pContext)
// CredentialFlags : DWORD -> 'uint32_t'
// Credentials : void* optional -> 'void *'
// pContext : HANDLE* out -> 'void *'
// 出力ポインタは koffi.out(...) で包む。構造体は koffi.struct で定義。

const lib = Deno.dlopen("DNSAPI.dll", {
  DnsAcquireContextHandle_A: { parameters: ["u32", "pointer", "pointer"], result: "i32" },
});
// lib.symbols.DnsAcquireContextHandle_A(CredentialFlags, Credentials, pContext)
// CredentialFlags : DWORD -> "u32"
// Credentials : void* optional -> "pointer"
// pContext : HANDLE* out -> "pointer"
// 文字列は "buffer"。ANSI(-A) は new TextEncoder() で UTF-8/ANSI バイト列(末尾に \x00)を渡す。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
int32_t DnsAcquireContextHandle_A(
    uint32_t CredentialFlags,
    void* Credentials,
    void* pContext);
C, "DNSAPI.dll");
// $ffi->DnsAcquireContextHandle_A(CredentialFlags, Credentials, pContext);
// CredentialFlags : DWORD
// Credentials : void* optional
// pContext : HANDLE* out
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。

import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;

public interface Dnsapi extends StdCallLibrary {
    Dnsapi INSTANCE = Native.load("dnsapi", Dnsapi.class, W32APIOptions.ASCII_OPTIONS);
    int DnsAcquireContextHandle_A(
        int CredentialFlags,   // DWORD
        Pointer Credentials,   // void* optional
        Pointer pContext   // HANDLE* out
    );
}

@[Link("dnsapi")]
lib LibDNSAPI
  fun DnsAcquireContextHandle_A = DnsAcquireContextHandle_A(
    CredentialFlags : UInt32,   # DWORD
    Credentials : Void*,   # void* optional
    pContext : Void*   # HANDLE* out
  ) : Int32
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。

import 'dart:ffi';
import 'package:ffi/ffi.dart';

typedef DnsAcquireContextHandle_ANative = Int32 Function(Uint32, Pointer<Void>, Pointer<Void>);
typedef DnsAcquireContextHandle_ADart = int Function(int, Pointer<Void>, Pointer<Void>);
final DnsAcquireContextHandle_A = DynamicLibrary.open('DNSAPI.dll')
    .lookupFunction<DnsAcquireContextHandle_ANative, DnsAcquireContextHandle_ADart>('DnsAcquireContextHandle_A');
// CredentialFlags : DWORD -> Uint32
// Credentials : void* optional -> Pointer<Void>
// pContext : HANDLE* out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function DnsAcquireContextHandle_A(
  CredentialFlags: DWORD;   // DWORD
  Credentials: Pointer;   // void* optional
  pContext: Pointer   // HANDLE* out
): Integer; stdcall;
  external 'DNSAPI.dll' name 'DnsAcquireContextHandle_A';

import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "DnsAcquireContextHandle_A"
  c_DnsAcquireContextHandle_A :: Word32 -> Ptr () -> Ptr () -> IO Int32
-- CredentialFlags : DWORD -> Word32
-- Credentials : void* optional -> Ptr ()
-- pContext : HANDLE* out -> Ptr ()
-- 要 GHC(Windows)。stdcall は x64 では ccall として扱われる。ブロックする API は safe 呼び出し推奨。

open Ctypes
open Foreign

let dnsacquirecontexthandle_a =
  foreign "DnsAcquireContextHandle_A"
    (uint32_t @-> (ptr void) @-> (ptr void) @-> returning int32_t)
(* CredentialFlags : DWORD -> uint32_t *)
(* Credentials : void* optional -> (ptr void) *)
(* pContext : HANDLE* out -> (ptr void) *)
(* foreign は cdecl 前提。x64 Windows では WINAPI と一致。構造体は ctypes structure を定義のこと。 *)

(cffi:define-foreign-library dnsapi (t "DNSAPI.dll"))
(cffi:use-foreign-library dnsapi)

(cffi:defcfun ("DnsAcquireContextHandle_A" dns-acquire-context-handle-a :convention :stdcall) :int32
  (credential-flags :uint32)   ; DWORD
  (credentials :pointer)   ; void* optional
  (p-context :pointer))   ; HANDLE* out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $DnsAcquireContextHandle_A = Win32::API::More->new('DNSAPI',
    'int DnsAcquireContextHandle_A(DWORD CredentialFlags, LPVOID Credentials, HANDLE pContext)');
# my $ret = $DnsAcquireContextHandle_A->Call($CredentialFlags, $Credentials, $pContext);
# CredentialFlags : DWORD -> DWORD
# Credentials : void* optional -> LPVOID
# pContext : HANDLE* out -> HANDLE
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。