VarUI1FromI2

// OLEAUT32.dll
#include <windows.h>

HRESULT VarUI1FromI2(
    SHORT sIn,
    BYTE* pbOut
);

<DllImport("OLEAUT32.dll", ExactSpelling:=True)>
Public Shared Function VarUI1FromI2(
    sIn As Short,   ' SHORT
    pbOut As IntPtr   ' BYTE* out
) As Integer
End Function

' sIn : SHORT
' pbOut : BYTE* out
Declare PtrSafe Function VarUI1FromI2 Lib "oleaut32" ( _
    ByVal sIn As Integer, _
    ByVal pbOut 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

VarUI1FromI2 = ctypes.windll.oleaut32.VarUI1FromI2
VarUI1FromI2.restype = ctypes.c_int
VarUI1FromI2.argtypes = [
    ctypes.c_short,  # sIn : SHORT
    ctypes.POINTER(ctypes.c_ubyte),  # pbOut : BYTE* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('OLEAUT32.dll')
VarUI1FromI2 = Fiddle::Function.new(
  lib['VarUI1FromI2'],
  [
    Fiddle::TYPE_SHORT,  # sIn : SHORT
    Fiddle::TYPE_VOIDP,  # pbOut : BYTE* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "oleaut32")]
extern "system" {
    fn VarUI1FromI2(
        sIn: i16,  // SHORT
        pbOut: *mut u8  // BYTE* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("OLEAUT32.dll")]
public static extern int VarUI1FromI2(short sIn, IntPtr pbOut);
"@
$api = Add-Type -MemberDefinition $sig -Name 'OLEAUT32_VarUI1FromI2' -Namespace Win32 -PassThru
# $api::VarUI1FromI2(sIn, pbOut)

#uselib "OLEAUT32.dll"
#func global VarUI1FromI2 "VarUI1FromI2" sptr, sptr
; VarUI1FromI2 sIn, varptr(pbOut)   ; 戻り値は stat
; sIn : SHORT -> "sptr"
; pbOut : BYTE* 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。

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

var (
	oleaut32 = windows.NewLazySystemDLL("OLEAUT32.dll")
	procVarUI1FromI2 = oleaut32.NewProc("VarUI1FromI2")
)

// sIn (SHORT), pbOut (BYTE* out)
r1, _, err := procVarUI1FromI2.Call(
	uintptr(sIn),
	uintptr(pbOut),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function VarUI1FromI2(
  sIn: Smallint;   // SHORT
  pbOut: Pointer   // BYTE* out
): Integer; stdcall;
  external 'OLEAUT32.dll' name 'VarUI1FromI2';

result := DllCall("OLEAUT32\VarUI1FromI2"
    , "Short", sIn   ; SHORT
    , "Ptr", pbOut   ; BYTE* out
    , "Int")   ; return: HRESULT

●VarUI1FromI2(sIn, pbOut) = DLL("OLEAUT32.dll", "int VarUI1FromI2(int, void*)")
# 呼び出し: VarUI1FromI2(sIn, pbOut)
# sIn : SHORT -> "int"
# pbOut : BYTE* 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 "oleaut32" fn VarUI1FromI2(
    sIn: i16, // SHORT
    pbOut: [*c]u8 // BYTE* out
) callconv(std.os.windows.WINAPI) i32;

proc VarUI1FromI2(
    sIn: int16,  # SHORT
    pbOut: ptr uint8  # BYTE* out
): int32 {.importc: "VarUI1FromI2", stdcall, dynlib: "OLEAUT32.dll".}

pragma(lib, "oleaut32");
extern(Windows)
int VarUI1FromI2(
    short sIn,   // SHORT
    ubyte* pbOut   // BYTE* out
);

ccall((:VarUI1FromI2, "OLEAUT32.dll"), stdcall, Int32,
      (Int16, Ptr{UInt8}),
      sIn, pbOut)
# sIn : SHORT -> Int16
# pbOut : BYTE* out -> Ptr{UInt8}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t VarUI1FromI2(
    int16_t sIn,
    uint8_t* pbOut);
]]
local oleaut32 = ffi.load("oleaut32")
-- oleaut32.VarUI1FromI2(sIn, pbOut)
-- sIn : SHORT
-- pbOut : BYTE* 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('OLEAUT32.dll');
const VarUI1FromI2 = lib.func('__stdcall', 'VarUI1FromI2', 'int32_t', ['int16_t', 'uint8_t *']);
// VarUI1FromI2(sIn, pbOut)
// sIn : SHORT -> 'int16_t'
// pbOut : BYTE* out -> 'uint8_t *'
// 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("OLEAUT32.dll", {
  VarUI1FromI2: { parameters: ["i16", "pointer"], result: "i32" },
});
// lib.symbols.VarUI1FromI2(sIn, pbOut)
// sIn : SHORT -> "i16"
// pbOut : BYTE* 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
int32_t VarUI1FromI2(
    int16_t sIn,
    uint8_t* pbOut);
C, "OLEAUT32.dll");
// $ffi->VarUI1FromI2(sIn, pbOut);
// sIn : SHORT
// pbOut : BYTE* 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 Oleaut32 extends StdCallLibrary {
    Oleaut32 INSTANCE = Native.load("oleaut32", Oleaut32.class);
    int VarUI1FromI2(
        short sIn,   // SHORT
        byte[] pbOut   // BYTE* out
    );
}

@[Link("oleaut32")]
lib LibOLEAUT32
  fun VarUI1FromI2 = VarUI1FromI2(
    sIn : Int16,   # SHORT
    pbOut : UInt8*   # BYTE* 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 VarUI1FromI2Native = Int32 Function(Int16, Pointer<Uint8>);
typedef VarUI1FromI2Dart = int Function(int, Pointer<Uint8>);
final VarUI1FromI2 = DynamicLibrary.open('OLEAUT32.dll')
    .lookupFunction<VarUI1FromI2Native, VarUI1FromI2Dart>('VarUI1FromI2');
// sIn : SHORT -> Int16
// pbOut : BYTE* out -> Pointer<Uint8>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function VarUI1FromI2(
  sIn: Smallint;   // SHORT
  pbOut: Pointer   // BYTE* out
): Integer; stdcall;
  external 'OLEAUT32.dll' name 'VarUI1FromI2';

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

foreign import stdcall safe "VarUI1FromI2"
  c_VarUI1FromI2 :: Int16 -> Ptr Word8 -> IO Int32
-- sIn : SHORT -> Int16
-- pbOut : BYTE* out -> Ptr Word8
-- 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 varui1fromi2 =
  foreign "VarUI1FromI2"
    (int16_t @-> (ptr uint8_t) @-> returning int32_t)
(* sIn : SHORT -> int16_t *)
(* pbOut : BYTE* out -> (ptr uint8_t) *)
(* 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 oleaut32 (t "OLEAUT32.dll"))
(cffi:use-foreign-library oleaut32)

(cffi:defcfun ("VarUI1FromI2" var-ui1-from-i2 :convention :stdcall) :int32
  (s-in :int16)   ; SHORT
  (pb-out :pointer))   ; BYTE* out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $VarUI1FromI2 = Win32::API::More->new('OLEAUT32',
    'int VarUI1FromI2(short sIn, LPVOID pbOut)');
# my $ret = $VarUI1FromI2->Call($sIn, $pbOut);
# sIn : SHORT -> short
# pbOut : BYTE* out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。