FaxFreeBuffer

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

void FaxFreeBuffer(
    void* Buffer
);

<DllImport("WINFAX.dll", ExactSpelling:=True)>
Public Shared Sub FaxFreeBuffer(
    Buffer As IntPtr   ' void* in/out
)
End Sub

' Buffer : void* in/out
Declare PtrSafe Sub FaxFreeBuffer Lib "winfax" ( _
    ByVal Buffer As LongPtr)
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

FaxFreeBuffer = ctypes.windll.winfax.FaxFreeBuffer
FaxFreeBuffer.restype = None
FaxFreeBuffer.argtypes = [
    ctypes.POINTER(None),  # Buffer : void* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WINFAX.dll')
FaxFreeBuffer = Fiddle::Function.new(
  lib['FaxFreeBuffer'],
  [
    Fiddle::TYPE_VOIDP,  # Buffer : void* in/out
  ],
  Fiddle::TYPE_VOID)

#[link(name = "winfax")]
extern "system" {
    fn FaxFreeBuffer(
        Buffer: *mut ()  // void* in/out
    );
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("WINFAX.dll")]
public static extern void FaxFreeBuffer(IntPtr Buffer);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WINFAX_FaxFreeBuffer' -Namespace Win32 -PassThru
# $api::FaxFreeBuffer(Buffer)

#uselib "WINFAX.dll"
#func global FaxFreeBuffer "FaxFreeBuffer" sptr
; FaxFreeBuffer Buffer
; Buffer : void* in/out -> "sptr"

#uselib "WINFAX.dll"
#func global FaxFreeBuffer "FaxFreeBuffer" sptr
; FaxFreeBuffer Buffer
; Buffer : void* in/out -> "sptr"

; void FaxFreeBuffer(void* Buffer)
#uselib "WINFAX.dll"
#func global FaxFreeBuffer "FaxFreeBuffer" intptr
; FaxFreeBuffer Buffer
; Buffer : void* in/out -> "intptr"

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

var (
	winfax = windows.NewLazySystemDLL("WINFAX.dll")
	procFaxFreeBuffer = winfax.NewProc("FaxFreeBuffer")
)

// Buffer (void* in/out)
r1, _, err := procFaxFreeBuffer.Call(
	uintptr(Buffer),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // void

procedure FaxFreeBuffer(
  Buffer: Pointer   // void* in/out
); stdcall;
  external 'WINFAX.dll' name 'FaxFreeBuffer';

result := DllCall("WINFAX\FaxFreeBuffer"
    , "Ptr", Buffer   ; void* in/out
    , "Int")   ; return: void

●FaxFreeBuffer(Buffer) = DLL("WINFAX.dll", "int FaxFreeBuffer(void*)")
# 呼び出し: FaxFreeBuffer(Buffer)
# Buffer : 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)。

const std = @import("std");

extern "winfax" fn FaxFreeBuffer(
    Buffer: ?*anyopaque // void* in/out
) callconv(std.os.windows.WINAPI) void;

proc FaxFreeBuffer(
    Buffer: pointer  # void* in/out
) {.importc: "FaxFreeBuffer", stdcall, dynlib: "WINFAX.dll".}

pragma(lib, "winfax");
extern(Windows)
void FaxFreeBuffer(
    void* Buffer   // void* in/out
);

ccall((:FaxFreeBuffer, "WINFAX.dll"), stdcall, Cvoid,
      (Ptr{Cvoid},),
      Buffer)
# Buffer : void* in/out -> Ptr{Cvoid}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
void FaxFreeBuffer(
    void* Buffer);
]]
local winfax = ffi.load("winfax")
-- winfax.FaxFreeBuffer(Buffer)
-- Buffer : void* in/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('WINFAX.dll');
const FaxFreeBuffer = lib.func('__stdcall', 'FaxFreeBuffer', 'void', ['void *']);
// FaxFreeBuffer(Buffer)
// Buffer : void* in/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("WINFAX.dll", {
  FaxFreeBuffer: { parameters: ["pointer"], result: "void" },
});
// lib.symbols.FaxFreeBuffer(Buffer)
// Buffer : void* in/out -> "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 FaxFreeBuffer(
    void* Buffer);
C, "WINFAX.dll");
// $ffi->FaxFreeBuffer(Buffer);
// Buffer : void* in/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 Winfax extends StdCallLibrary {
    Winfax INSTANCE = Native.load("winfax", Winfax.class);
    void FaxFreeBuffer(
        Pointer Buffer   // void* in/out
    );
}

@[Link("winfax")]
lib LibWINFAX
  fun FaxFreeBuffer = FaxFreeBuffer(
    Buffer : Void*   # void* in/out
  ) : 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 FaxFreeBufferNative = Void Function(Pointer<Void>);
typedef FaxFreeBufferDart = void Function(Pointer<Void>);
final FaxFreeBuffer = DynamicLibrary.open('WINFAX.dll')
    .lookupFunction<FaxFreeBufferNative, FaxFreeBufferDart>('FaxFreeBuffer');
// Buffer : void* in/out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
procedure FaxFreeBuffer(
  Buffer: Pointer   // void* in/out
); stdcall;
  external 'WINFAX.dll' name 'FaxFreeBuffer';

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

foreign import stdcall safe "FaxFreeBuffer"
  c_FaxFreeBuffer :: Ptr () -> IO ()
-- Buffer : void* in/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 faxfreebuffer =
  foreign "FaxFreeBuffer"
    ((ptr void) @-> returning void)
(* Buffer : void* in/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 winfax (t "WINFAX.dll"))
(cffi:use-foreign-library winfax)

(cffi:defcfun ("FaxFreeBuffer" fax-free-buffer :convention :stdcall) :void
  (buffer :pointer))   ; void* in/out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

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