VariantToDosDateTime

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

HRESULT VariantToDosDateTime(
    const VARIANT* varIn,
    WORD* pwDate,
    WORD* pwTime
);

<DllImport("PROPSYS.dll", ExactSpelling:=True)>
Public Shared Function VariantToDosDateTime(
    varIn As IntPtr,   ' VARIANT*
    <Out> ByRef pwDate As UShort,   ' WORD* out
    <Out> ByRef pwTime As UShort   ' WORD* out
) As Integer
End Function

' varIn : VARIANT*
' pwDate : WORD* out
' pwTime : WORD* out
Declare PtrSafe Function VariantToDosDateTime Lib "propsys" ( _
    ByVal varIn As LongPtr, _
    ByRef pwDate As Integer, _
    ByRef pwTime As Integer) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

VariantToDosDateTime = ctypes.windll.propsys.VariantToDosDateTime
VariantToDosDateTime.restype = ctypes.c_int
VariantToDosDateTime.argtypes = [
    ctypes.c_void_p,  # varIn : VARIANT*
    ctypes.POINTER(ctypes.c_ushort),  # pwDate : WORD* out
    ctypes.POINTER(ctypes.c_ushort),  # pwTime : WORD* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('PROPSYS.dll')
VariantToDosDateTime = Fiddle::Function.new(
  lib['VariantToDosDateTime'],
  [
    Fiddle::TYPE_VOIDP,  # varIn : VARIANT*
    Fiddle::TYPE_VOIDP,  # pwDate : WORD* out
    Fiddle::TYPE_VOIDP,  # pwTime : WORD* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "propsys")]
extern "system" {
    fn VariantToDosDateTime(
        varIn: *const VARIANT,  // VARIANT*
        pwDate: *mut u16,  // WORD* out
        pwTime: *mut u16  // WORD* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("PROPSYS.dll")]
public static extern int VariantToDosDateTime(IntPtr varIn, out ushort pwDate, out ushort pwTime);
"@
$api = Add-Type -MemberDefinition $sig -Name 'PROPSYS_VariantToDosDateTime' -Namespace Win32 -PassThru
# $api::VariantToDosDateTime(varIn, pwDate, pwTime)

#uselib "PROPSYS.dll"
#func global VariantToDosDateTime "VariantToDosDateTime" sptr, sptr, sptr
; VariantToDosDateTime varptr(varIn), varptr(pwDate), varptr(pwTime)   ; 戻り値は stat
; varIn : VARIANT* -> "sptr"
; pwDate : WORD* out -> "sptr"
; pwTime : WORD* 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 (
	propsys = windows.NewLazySystemDLL("PROPSYS.dll")
	procVariantToDosDateTime = propsys.NewProc("VariantToDosDateTime")
)

// varIn (VARIANT*), pwDate (WORD* out), pwTime (WORD* out)
r1, _, err := procVariantToDosDateTime.Call(
	uintptr(varIn),
	uintptr(pwDate),
	uintptr(pwTime),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function VariantToDosDateTime(
  varIn: Pointer;   // VARIANT*
  pwDate: Pointer;   // WORD* out
  pwTime: Pointer   // WORD* out
): Integer; stdcall;
  external 'PROPSYS.dll' name 'VariantToDosDateTime';

result := DllCall("PROPSYS\VariantToDosDateTime"
    , "Ptr", varIn   ; VARIANT*
    , "Ptr", pwDate   ; WORD* out
    , "Ptr", pwTime   ; WORD* out
    , "Int")   ; return: HRESULT

●VariantToDosDateTime(varIn, pwDate, pwTime) = DLL("PROPSYS.dll", "int VariantToDosDateTime(void*, void*, void*)")
# 呼び出し: VariantToDosDateTime(varIn, pwDate, pwTime)
# varIn : VARIANT* -> "void*"
# pwDate : WORD* out -> "void*"
# pwTime : WORD* 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 "propsys" fn VariantToDosDateTime(
    varIn: [*c]VARIANT, // VARIANT*
    pwDate: [*c]u16, // WORD* out
    pwTime: [*c]u16 // WORD* out
) callconv(std.os.windows.WINAPI) i32;

proc VariantToDosDateTime(
    varIn: ptr VARIANT,  # VARIANT*
    pwDate: ptr uint16,  # WORD* out
    pwTime: ptr uint16  # WORD* out
): int32 {.importc: "VariantToDosDateTime", stdcall, dynlib: "PROPSYS.dll".}

pragma(lib, "propsys");
extern(Windows)
int VariantToDosDateTime(
    VARIANT* varIn,   // VARIANT*
    ushort* pwDate,   // WORD* out
    ushort* pwTime   // WORD* out
);

ccall((:VariantToDosDateTime, "PROPSYS.dll"), stdcall, Int32,
      (Ptr{VARIANT}, Ptr{UInt16}, Ptr{UInt16}),
      varIn, pwDate, pwTime)
# varIn : VARIANT* -> Ptr{VARIANT}
# pwDate : WORD* out -> Ptr{UInt16}
# pwTime : WORD* out -> Ptr{UInt16}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t VariantToDosDateTime(
    void* varIn,
    uint16_t* pwDate,
    uint16_t* pwTime);
]]
local propsys = ffi.load("propsys")
-- propsys.VariantToDosDateTime(varIn, pwDate, pwTime)
-- varIn : VARIANT*
-- pwDate : WORD* out
-- pwTime : WORD* 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('PROPSYS.dll');
const VariantToDosDateTime = lib.func('__stdcall', 'VariantToDosDateTime', 'int32_t', ['void *', 'uint16_t *', 'uint16_t *']);
// VariantToDosDateTime(varIn, pwDate, pwTime)
// varIn : VARIANT* -> 'void *'
// pwDate : WORD* out -> 'uint16_t *'
// pwTime : WORD* out -> 'uint16_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("PROPSYS.dll", {
  VariantToDosDateTime: { parameters: ["pointer", "pointer", "pointer"], result: "i32" },
});
// lib.symbols.VariantToDosDateTime(varIn, pwDate, pwTime)
// varIn : VARIANT* -> "pointer"
// pwDate : WORD* out -> "pointer"
// pwTime : WORD* 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 VariantToDosDateTime(
    void* varIn,
    uint16_t* pwDate,
    uint16_t* pwTime);
C, "PROPSYS.dll");
// $ffi->VariantToDosDateTime(varIn, pwDate, pwTime);
// varIn : VARIANT*
// pwDate : WORD* out
// pwTime : WORD* 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 Propsys extends StdCallLibrary {
    Propsys INSTANCE = Native.load("propsys", Propsys.class);
    int VariantToDosDateTime(
        Pointer varIn,   // VARIANT*
        ShortByReference pwDate,   // WORD* out
        ShortByReference pwTime   // WORD* out
    );
}

@[Link("propsys")]
lib LibPROPSYS
  fun VariantToDosDateTime = VariantToDosDateTime(
    varIn : VARIANT*,   # VARIANT*
    pwDate : UInt16*,   # WORD* out
    pwTime : UInt16*   # WORD* 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 VariantToDosDateTimeNative = Int32 Function(Pointer<Void>, Pointer<Uint16>, Pointer<Uint16>);
typedef VariantToDosDateTimeDart = int Function(Pointer<Void>, Pointer<Uint16>, Pointer<Uint16>);
final VariantToDosDateTime = DynamicLibrary.open('PROPSYS.dll')
    .lookupFunction<VariantToDosDateTimeNative, VariantToDosDateTimeDart>('VariantToDosDateTime');
// varIn : VARIANT* -> Pointer<Void>
// pwDate : WORD* out -> Pointer<Uint16>
// pwTime : WORD* out -> Pointer<Uint16>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function VariantToDosDateTime(
  varIn: Pointer;   // VARIANT*
  pwDate: Pointer;   // WORD* out
  pwTime: Pointer   // WORD* out
): Integer; stdcall;
  external 'PROPSYS.dll' name 'VariantToDosDateTime';

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

foreign import stdcall safe "VariantToDosDateTime"
  c_VariantToDosDateTime :: Ptr () -> Ptr Word16 -> Ptr Word16 -> IO Int32
-- varIn : VARIANT* -> Ptr ()
-- pwDate : WORD* out -> Ptr Word16
-- pwTime : WORD* out -> Ptr Word16
-- 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 varianttodosdatetime =
  foreign "VariantToDosDateTime"
    ((ptr void) @-> (ptr uint16_t) @-> (ptr uint16_t) @-> returning int32_t)
(* varIn : VARIANT* -> (ptr void) *)
(* pwDate : WORD* out -> (ptr uint16_t) *)
(* pwTime : WORD* out -> (ptr uint16_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 propsys (t "PROPSYS.dll"))
(cffi:use-foreign-library propsys)

(cffi:defcfun ("VariantToDosDateTime" variant-to-dos-date-time :convention :stdcall) :int32
  (var-in :pointer)   ; VARIANT*
  (pw-date :pointer)   ; WORD* out
  (pw-time :pointer))   ; WORD* out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $VariantToDosDateTime = Win32::API::More->new('PROPSYS',
    'int VariantToDosDateTime(LPVOID varIn, LPVOID pwDate, LPVOID pwTime)');
# my $ret = $VariantToDosDateTime->Call($varIn, $pwDate, $pwTime);
# varIn : VARIANT* -> LPVOID
# pwDate : WORD* out -> LPVOID
# pwTime : WORD* out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。