RemoveDllDirectory

// KERNEL32.dll
#include <windows.h>

BOOL RemoveDllDirectory(
    void* Cookie
);

<DllImport("KERNEL32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function RemoveDllDirectory(
    Cookie As IntPtr   ' void*
) As <MarshalAs(UnmanagedType.Bool)> Boolean
End Function

' Cookie : void*
Declare PtrSafe Function RemoveDllDirectory Lib "kernel32" ( _
    ByVal Cookie 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

RemoveDllDirectory = ctypes.windll.kernel32.RemoveDllDirectory
RemoveDllDirectory.restype = wintypes.BOOL
RemoveDllDirectory.argtypes = [
    ctypes.POINTER(None),  # Cookie : void*
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
RemoveDllDirectory = Fiddle::Function.new(
  lib['RemoveDllDirectory'],
  [
    Fiddle::TYPE_VOIDP,  # Cookie : void*
  ],
  Fiddle::TYPE_INT)

#[link(name = "kernel32")]
extern "system" {
    fn RemoveDllDirectory(
        Cookie: *mut ()  // void*
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("KERNEL32.dll", SetLastError = true)]
public static extern bool RemoveDllDirectory(IntPtr Cookie);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_RemoveDllDirectory' -Namespace Win32 -PassThru
# $api::RemoveDllDirectory(Cookie)

#uselib "KERNEL32.dll"
#func global RemoveDllDirectory "RemoveDllDirectory" sptr
; RemoveDllDirectory Cookie   ; 戻り値は stat
; Cookie : void* -> "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 "KERNEL32.dll"
#cfunc global RemoveDllDirectory "RemoveDllDirectory" sptr
; res = RemoveDllDirectory(Cookie)
; Cookie : void* -> "sptr"

; BOOL RemoveDllDirectory(void* Cookie)
#uselib "KERNEL32.dll"
#cfunc global RemoveDllDirectory "RemoveDllDirectory" intptr
; res = RemoveDllDirectory(Cookie)
; Cookie : void* -> "intptr"

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

var (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	procRemoveDllDirectory = kernel32.NewProc("RemoveDllDirectory")
)

// Cookie (void*)
r1, _, err := procRemoveDllDirectory.Call(
	uintptr(Cookie),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function RemoveDllDirectory(
  Cookie: Pointer   // void*
): BOOL; stdcall;
  external 'KERNEL32.dll' name 'RemoveDllDirectory';

result := DllCall("KERNEL32\RemoveDllDirectory"
    , "Ptr", Cookie   ; void*
    , "Int")   ; return: BOOL

●RemoveDllDirectory(Cookie) = DLL("KERNEL32.dll", "bool RemoveDllDirectory(void*)")
# 呼び出し: RemoveDllDirectory(Cookie)
# Cookie : void* -> "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 "kernel32" fn RemoveDllDirectory(
    Cookie: ?*anyopaque // void*
) callconv(std.os.windows.WINAPI) i32;

proc RemoveDllDirectory(
    Cookie: pointer  # void*
): int32 {.importc: "RemoveDllDirectory", stdcall, dynlib: "KERNEL32.dll".}

pragma(lib, "kernel32");
extern(Windows)
int RemoveDllDirectory(
    void* Cookie   // void*
);

ccall((:RemoveDllDirectory, "KERNEL32.dll"), stdcall, Int32,
      (Ptr{Cvoid},),
      Cookie)
# Cookie : void* -> 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 RemoveDllDirectory(
    void* Cookie);
]]
local kernel32 = ffi.load("kernel32")
-- kernel32.RemoveDllDirectory(Cookie)
-- Cookie : void*
-- 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('KERNEL32.dll');
const RemoveDllDirectory = lib.func('__stdcall', 'RemoveDllDirectory', 'int32_t', ['void *']);
// RemoveDllDirectory(Cookie)
// Cookie : void* -> '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("KERNEL32.dll", {
  RemoveDllDirectory: { parameters: ["pointer"], result: "i32" },
});
// lib.symbols.RemoveDllDirectory(Cookie)
// Cookie : void* -> "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
int32_t RemoveDllDirectory(
    void* Cookie);
C, "KERNEL32.dll");
// $ffi->RemoveDllDirectory(Cookie);
// Cookie : void*
// 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 Kernel32 extends StdCallLibrary {
    Kernel32 INSTANCE = Native.load("kernel32", Kernel32.class);
    boolean RemoveDllDirectory(
        Pointer Cookie   // void*
    );
}

@[Link("kernel32")]
lib LibKERNEL32
  fun RemoveDllDirectory = RemoveDllDirectory(
    Cookie : Void*   # void*
  ) : 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 RemoveDllDirectoryNative = Int32 Function(Pointer<Void>);
typedef RemoveDllDirectoryDart = int Function(Pointer<Void>);
final RemoveDllDirectory = DynamicLibrary.open('KERNEL32.dll')
    .lookupFunction<RemoveDllDirectoryNative, RemoveDllDirectoryDart>('RemoveDllDirectory');
// Cookie : void* -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function RemoveDllDirectory(
  Cookie: Pointer   // void*
): BOOL; stdcall;
  external 'KERNEL32.dll' name 'RemoveDllDirectory';

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

foreign import stdcall safe "RemoveDllDirectory"
  c_RemoveDllDirectory :: Ptr () -> IO CInt
-- Cookie : void* -> 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 removedlldirectory =
  foreign "RemoveDllDirectory"
    ((ptr void) @-> returning int32_t)
(* Cookie : void* -> (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 kernel32 (t "KERNEL32.dll"))
(cffi:use-foreign-library kernel32)

(cffi:defcfun ("RemoveDllDirectory" remove-dll-directory :convention :stdcall) :int32
  (cookie :pointer))   ; void*
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $RemoveDllDirectory = Win32::API::More->new('KERNEL32',
    'BOOL RemoveDllDirectory(LPVOID Cookie)');
# my $ret = $RemoveDllDirectory->Call($Cookie);
# Cookie : void* -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。