InitVariantFromInt64Array

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

HRESULT InitVariantFromInt64Array(
    const LONGLONG* prgn,
    DWORD cElems,
    VARIANT* pvar
);

<DllImport("PROPSYS.dll", ExactSpelling:=True)>
Public Shared Function InitVariantFromInt64Array(
    ByRef prgn As Long,   ' LONGLONG*
    cElems As UInteger,   ' DWORD
    pvar As IntPtr   ' VARIANT* out
) As Integer
End Function

' prgn : LONGLONG*
' cElems : DWORD
' pvar : VARIANT* out
Declare PtrSafe Function InitVariantFromInt64Array Lib "propsys" ( _
    ByRef prgn As LongLong, _
    ByVal cElems As Long, _
    ByVal pvar 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

InitVariantFromInt64Array = ctypes.windll.propsys.InitVariantFromInt64Array
InitVariantFromInt64Array.restype = ctypes.c_int
InitVariantFromInt64Array.argtypes = [
    ctypes.POINTER(ctypes.c_longlong),  # prgn : LONGLONG*
    wintypes.DWORD,  # cElems : DWORD
    ctypes.c_void_p,  # pvar : VARIANT* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('PROPSYS.dll')
InitVariantFromInt64Array = Fiddle::Function.new(
  lib['InitVariantFromInt64Array'],
  [
    Fiddle::TYPE_VOIDP,  # prgn : LONGLONG*
    -Fiddle::TYPE_INT,  # cElems : DWORD
    Fiddle::TYPE_VOIDP,  # pvar : VARIANT* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "propsys")]
extern "system" {
    fn InitVariantFromInt64Array(
        prgn: *const i64,  // LONGLONG*
        cElems: u32,  // DWORD
        pvar: *mut VARIANT  // VARIANT* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("PROPSYS.dll")]
public static extern int InitVariantFromInt64Array(ref long prgn, uint cElems, IntPtr pvar);
"@
$api = Add-Type -MemberDefinition $sig -Name 'PROPSYS_InitVariantFromInt64Array' -Namespace Win32 -PassThru
# $api::InitVariantFromInt64Array(prgn, cElems, pvar)

#uselib "PROPSYS.dll"
#func global InitVariantFromInt64Array "InitVariantFromInt64Array" sptr, sptr, sptr
; InitVariantFromInt64Array varptr(prgn), cElems, varptr(pvar)   ; 戻り値は stat
; prgn : LONGLONG* -> "sptr"
; cElems : DWORD -> "sptr"
; pvar : VARIANT* 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")
	procInitVariantFromInt64Array = propsys.NewProc("InitVariantFromInt64Array")
)

// prgn (LONGLONG*), cElems (DWORD), pvar (VARIANT* out)
r1, _, err := procInitVariantFromInt64Array.Call(
	uintptr(prgn),
	uintptr(cElems),
	uintptr(pvar),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function InitVariantFromInt64Array(
  prgn: Pointer;   // LONGLONG*
  cElems: DWORD;   // DWORD
  pvar: Pointer   // VARIANT* out
): Integer; stdcall;
  external 'PROPSYS.dll' name 'InitVariantFromInt64Array';

result := DllCall("PROPSYS\InitVariantFromInt64Array"
    , "Ptr", prgn   ; LONGLONG*
    , "UInt", cElems   ; DWORD
    , "Ptr", pvar   ; VARIANT* out
    , "Int")   ; return: HRESULT

●InitVariantFromInt64Array(prgn, cElems, pvar) = DLL("PROPSYS.dll", "int InitVariantFromInt64Array(void*, dword, void*)")
# 呼び出し: InitVariantFromInt64Array(prgn, cElems, pvar)
# prgn : LONGLONG* -> "void*"
# cElems : DWORD -> "dword"
# pvar : VARIANT* 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 InitVariantFromInt64Array(
    prgn: [*c]i64, // LONGLONG*
    cElems: u32, // DWORD
    pvar: [*c]VARIANT // VARIANT* out
) callconv(std.os.windows.WINAPI) i32;

proc InitVariantFromInt64Array(
    prgn: ptr int64,  # LONGLONG*
    cElems: uint32,  # DWORD
    pvar: ptr VARIANT  # VARIANT* out
): int32 {.importc: "InitVariantFromInt64Array", stdcall, dynlib: "PROPSYS.dll".}

pragma(lib, "propsys");
extern(Windows)
int InitVariantFromInt64Array(
    long* prgn,   // LONGLONG*
    uint cElems,   // DWORD
    VARIANT* pvar   // VARIANT* out
);

ccall((:InitVariantFromInt64Array, "PROPSYS.dll"), stdcall, Int32,
      (Ptr{Int64}, UInt32, Ptr{VARIANT}),
      prgn, cElems, pvar)
# prgn : LONGLONG* -> Ptr{Int64}
# cElems : DWORD -> UInt32
# pvar : VARIANT* out -> Ptr{VARIANT}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t InitVariantFromInt64Array(
    int64_t* prgn,
    uint32_t cElems,
    void* pvar);
]]
local propsys = ffi.load("propsys")
-- propsys.InitVariantFromInt64Array(prgn, cElems, pvar)
-- prgn : LONGLONG*
-- cElems : DWORD
-- pvar : VARIANT* 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 InitVariantFromInt64Array = lib.func('__stdcall', 'InitVariantFromInt64Array', 'int32_t', ['int64_t *', 'uint32_t', 'void *']);
// InitVariantFromInt64Array(prgn, cElems, pvar)
// prgn : LONGLONG* -> 'int64_t *'
// cElems : DWORD -> 'uint32_t'
// pvar : VARIANT* 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("PROPSYS.dll", {
  InitVariantFromInt64Array: { parameters: ["pointer", "u32", "pointer"], result: "i32" },
});
// lib.symbols.InitVariantFromInt64Array(prgn, cElems, pvar)
// prgn : LONGLONG* -> "pointer"
// cElems : DWORD -> "u32"
// pvar : VARIANT* 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 InitVariantFromInt64Array(
    int64_t* prgn,
    uint32_t cElems,
    void* pvar);
C, "PROPSYS.dll");
// $ffi->InitVariantFromInt64Array(prgn, cElems, pvar);
// prgn : LONGLONG*
// cElems : DWORD
// pvar : VARIANT* 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 InitVariantFromInt64Array(
        LongByReference prgn,   // LONGLONG*
        int cElems,   // DWORD
        Pointer pvar   // VARIANT* out
    );
}

@[Link("propsys")]
lib LibPROPSYS
  fun InitVariantFromInt64Array = InitVariantFromInt64Array(
    prgn : Int64*,   # LONGLONG*
    cElems : UInt32,   # DWORD
    pvar : VARIANT*   # VARIANT* 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 InitVariantFromInt64ArrayNative = Int32 Function(Pointer<Int64>, Uint32, Pointer<Void>);
typedef InitVariantFromInt64ArrayDart = int Function(Pointer<Int64>, int, Pointer<Void>);
final InitVariantFromInt64Array = DynamicLibrary.open('PROPSYS.dll')
    .lookupFunction<InitVariantFromInt64ArrayNative, InitVariantFromInt64ArrayDart>('InitVariantFromInt64Array');
// prgn : LONGLONG* -> Pointer<Int64>
// cElems : DWORD -> Uint32
// pvar : VARIANT* out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function InitVariantFromInt64Array(
  prgn: Pointer;   // LONGLONG*
  cElems: DWORD;   // DWORD
  pvar: Pointer   // VARIANT* out
): Integer; stdcall;
  external 'PROPSYS.dll' name 'InitVariantFromInt64Array';

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

foreign import stdcall safe "InitVariantFromInt64Array"
  c_InitVariantFromInt64Array :: Ptr Int64 -> Word32 -> Ptr () -> IO Int32
-- prgn : LONGLONG* -> Ptr Int64
-- cElems : DWORD -> Word32
-- pvar : VARIANT* 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 initvariantfromint64array =
  foreign "InitVariantFromInt64Array"
    ((ptr int64_t) @-> uint32_t @-> (ptr void) @-> returning int32_t)
(* prgn : LONGLONG* -> (ptr int64_t) *)
(* cElems : DWORD -> uint32_t *)
(* pvar : VARIANT* 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 propsys (t "PROPSYS.dll"))
(cffi:use-foreign-library propsys)

(cffi:defcfun ("InitVariantFromInt64Array" init-variant-from-int64-array :convention :stdcall) :int32
  (prgn :pointer)   ; LONGLONG*
  (c-elems :uint32)   ; DWORD
  (pvar :pointer))   ; VARIANT* out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $InitVariantFromInt64Array = Win32::API::More->new('PROPSYS',
    'int InitVariantFromInt64Array(LPVOID prgn, DWORD cElems, LPVOID pvar)');
# my $ret = $InitVariantFromInt64Array->Call($prgn, $cElems, $pvar);
# prgn : LONGLONG* -> LPVOID
# cElems : DWORD -> DWORD
# pvar : VARIANT* out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。