DnsReleaseContextHandle

// DNSAPI.dll
#include <windows.h>

void DnsReleaseContextHandle(
    HANDLE hContext
);

<DllImport("DNSAPI.dll", ExactSpelling:=True)>
Public Shared Sub DnsReleaseContextHandle(
    hContext As IntPtr   ' HANDLE
)
End Sub

' hContext : HANDLE
Declare PtrSafe Sub DnsReleaseContextHandle Lib "dnsapi" ( _
    ByVal hContext As LongPtr)
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

DnsReleaseContextHandle = ctypes.windll.dnsapi.DnsReleaseContextHandle
DnsReleaseContextHandle.restype = None
DnsReleaseContextHandle.argtypes = [
    wintypes.HANDLE,  # hContext : HANDLE
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('DNSAPI.dll')
DnsReleaseContextHandle = Fiddle::Function.new(
  lib['DnsReleaseContextHandle'],
  [
    Fiddle::TYPE_VOIDP,  # hContext : HANDLE
  ],
  Fiddle::TYPE_VOID)

#[link(name = "dnsapi")]
extern "system" {
    fn DnsReleaseContextHandle(
        hContext: *mut core::ffi::c_void  // HANDLE
    );
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("DNSAPI.dll")]
public static extern void DnsReleaseContextHandle(IntPtr hContext);
"@
$api = Add-Type -MemberDefinition $sig -Name 'DNSAPI_DnsReleaseContextHandle' -Namespace Win32 -PassThru
# $api::DnsReleaseContextHandle(hContext)

#uselib "DNSAPI.dll"
#func global DnsReleaseContextHandle "DnsReleaseContextHandle" sptr
; DnsReleaseContextHandle hContext
; hContext : HANDLE -> "sptr"

#uselib "DNSAPI.dll"
#func global DnsReleaseContextHandle "DnsReleaseContextHandle" sptr
; DnsReleaseContextHandle hContext
; hContext : HANDLE -> "sptr"

; void DnsReleaseContextHandle(HANDLE hContext)
#uselib "DNSAPI.dll"
#func global DnsReleaseContextHandle "DnsReleaseContextHandle" intptr
; DnsReleaseContextHandle hContext
; hContext : HANDLE -> "intptr"

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

var (
	dnsapi = windows.NewLazySystemDLL("DNSAPI.dll")
	procDnsReleaseContextHandle = dnsapi.NewProc("DnsReleaseContextHandle")
)

// hContext (HANDLE)
r1, _, err := procDnsReleaseContextHandle.Call(
	uintptr(hContext),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // void

procedure DnsReleaseContextHandle(
  hContext: THandle   // HANDLE
); stdcall;
  external 'DNSAPI.dll' name 'DnsReleaseContextHandle';

result := DllCall("DNSAPI\DnsReleaseContextHandle"
    , "Ptr", hContext   ; HANDLE
    , "Int")   ; return: void

●DnsReleaseContextHandle(hContext) = DLL("DNSAPI.dll", "int DnsReleaseContextHandle(void*)")
# 呼び出し: DnsReleaseContextHandle(hContext)
# hContext : HANDLE -> "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 DnsReleaseContextHandle(
    hContext: ?*anyopaque // HANDLE
) callconv(std.os.windows.WINAPI) void;

proc DnsReleaseContextHandle(
    hContext: pointer  # HANDLE
) {.importc: "DnsReleaseContextHandle", stdcall, dynlib: "DNSAPI.dll".}

pragma(lib, "dnsapi");
extern(Windows)
void DnsReleaseContextHandle(
    void* hContext   // HANDLE
);

ccall((:DnsReleaseContextHandle, "DNSAPI.dll"), stdcall, Cvoid,
      (Ptr{Cvoid},),
      hContext)
# hContext : HANDLE -> Ptr{Cvoid}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
void DnsReleaseContextHandle(
    void* hContext);
]]
local dnsapi = ffi.load("dnsapi")
-- dnsapi.DnsReleaseContextHandle(hContext)
-- hContext : HANDLE
-- 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 DnsReleaseContextHandle = lib.func('__stdcall', 'DnsReleaseContextHandle', 'void', ['void *']);
// DnsReleaseContextHandle(hContext)
// hContext : HANDLE -> '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", {
  DnsReleaseContextHandle: { parameters: ["pointer"], result: "void" },
});
// lib.symbols.DnsReleaseContextHandle(hContext)
// hContext : HANDLE -> "pointer"
// 文字列引数は "buffer"(NUL 終端のバイト列を Uint8Array で渡す)。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
void DnsReleaseContextHandle(
    void* hContext);
C, "DNSAPI.dll");
// $ffi->DnsReleaseContextHandle(hContext);
// hContext : HANDLE
// 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);
    void DnsReleaseContextHandle(
        Pointer hContext   // HANDLE
    );
}

@[Link("dnsapi")]
lib LibDNSAPI
  fun DnsReleaseContextHandle = DnsReleaseContextHandle(
    hContext : Void*   # HANDLE
  ) : Void
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 DnsReleaseContextHandleNative = Void Function(Pointer<Void>);
typedef DnsReleaseContextHandleDart = void Function(Pointer<Void>);
final DnsReleaseContextHandle = DynamicLibrary.open('DNSAPI.dll')
    .lookupFunction<DnsReleaseContextHandleNative, DnsReleaseContextHandleDart>('DnsReleaseContextHandle');
// hContext : HANDLE -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
procedure DnsReleaseContextHandle(
  hContext: THandle   // HANDLE
); stdcall;
  external 'DNSAPI.dll' name 'DnsReleaseContextHandle';

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

foreign import stdcall safe "DnsReleaseContextHandle"
  c_DnsReleaseContextHandle :: Ptr () -> IO ()
-- hContext : HANDLE -> 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 dnsreleasecontexthandle =
  foreign "DnsReleaseContextHandle"
    ((ptr void) @-> returning void)
(* hContext : HANDLE -> (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 ("DnsReleaseContextHandle" dns-release-context-handle :convention :stdcall) :void
  (h-context :pointer))   ; HANDLE
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $DnsReleaseContextHandle = Win32::API::More->new('DNSAPI',
    'void DnsReleaseContextHandle(HANDLE hContext)');
# my $ret = $DnsReleaseContextHandle->Call($hContext);
# hContext : HANDLE -> HANDLE
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。