InitVariantFromDoubleArray

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

HRESULT InitVariantFromDoubleArray(
    const DOUBLE* prgn,
    DWORD cElems,
    VARIANT* pvar
);

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

' prgn : DOUBLE*
' cElems : DWORD
' pvar : VARIANT* out
Declare PtrSafe Function InitVariantFromDoubleArray Lib "propsys" ( _
    ByRef prgn As Double, _
    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

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

require 'fiddle'
require 'fiddle/import'

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

#[link(name = "propsys")]
extern "system" {
    fn InitVariantFromDoubleArray(
        prgn: *const f64,  // DOUBLE*
        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 InitVariantFromDoubleArray(ref double prgn, uint cElems, IntPtr pvar);
"@
$api = Add-Type -MemberDefinition $sig -Name 'PROPSYS_InitVariantFromDoubleArray' -Namespace Win32 -PassThru
# $api::InitVariantFromDoubleArray(prgn, cElems, pvar)

#uselib "PROPSYS.dll"
#func global InitVariantFromDoubleArray "InitVariantFromDoubleArray" sptr, sptr, sptr
; InitVariantFromDoubleArray varptr(prgn), cElems, varptr(pvar)   ; 戻り値は stat
; prgn : DOUBLE* -> "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")
	procInitVariantFromDoubleArray = propsys.NewProc("InitVariantFromDoubleArray")
)

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

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

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

●InitVariantFromDoubleArray(prgn, cElems, pvar) = DLL("PROPSYS.dll", "int InitVariantFromDoubleArray(void*, dword, void*)")
# 呼び出し: InitVariantFromDoubleArray(prgn, cElems, pvar)
# prgn : DOUBLE* -> "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 InitVariantFromDoubleArray(
    prgn: [*c]f64, // DOUBLE*
    cElems: u32, // DWORD
    pvar: [*c]VARIANT // VARIANT* out
) callconv(std.os.windows.WINAPI) i32;

proc InitVariantFromDoubleArray(
    prgn: ptr float64,  # DOUBLE*
    cElems: uint32,  # DWORD
    pvar: ptr VARIANT  # VARIANT* out
): int32 {.importc: "InitVariantFromDoubleArray", stdcall, dynlib: "PROPSYS.dll".}

pragma(lib, "propsys");
extern(Windows)
int InitVariantFromDoubleArray(
    double* prgn,   // DOUBLE*
    uint cElems,   // DWORD
    VARIANT* pvar   // VARIANT* out
);

ccall((:InitVariantFromDoubleArray, "PROPSYS.dll"), stdcall, Int32,
      (Ptr{Float64}, UInt32, Ptr{VARIANT}),
      prgn, cElems, pvar)
# prgn : DOUBLE* -> Ptr{Float64}
# 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 InitVariantFromDoubleArray(
    double* prgn,
    uint32_t cElems,
    void* pvar);
]]
local propsys = ffi.load("propsys")
-- propsys.InitVariantFromDoubleArray(prgn, cElems, pvar)
-- prgn : DOUBLE*
-- 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 InitVariantFromDoubleArray = lib.func('__stdcall', 'InitVariantFromDoubleArray', 'int32_t', ['double *', 'uint32_t', 'void *']);
// InitVariantFromDoubleArray(prgn, cElems, pvar)
// prgn : DOUBLE* -> 'double *'
// 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", {
  InitVariantFromDoubleArray: { parameters: ["pointer", "u32", "pointer"], result: "i32" },
});
// lib.symbols.InitVariantFromDoubleArray(prgn, cElems, pvar)
// prgn : DOUBLE* -> "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 InitVariantFromDoubleArray(
    double* prgn,
    uint32_t cElems,
    void* pvar);
C, "PROPSYS.dll");
// $ffi->InitVariantFromDoubleArray(prgn, cElems, pvar);
// prgn : DOUBLE*
// 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 InitVariantFromDoubleArray(
        DoubleByReference prgn,   // DOUBLE*
        int cElems,   // DWORD
        Pointer pvar   // VARIANT* out
    );
}

@[Link("propsys")]
lib LibPROPSYS
  fun InitVariantFromDoubleArray = InitVariantFromDoubleArray(
    prgn : Float64*,   # DOUBLE*
    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 InitVariantFromDoubleArrayNative = Int32 Function(Pointer<Double>, Uint32, Pointer<Void>);
typedef InitVariantFromDoubleArrayDart = int Function(Pointer<Double>, int, Pointer<Void>);
final InitVariantFromDoubleArray = DynamicLibrary.open('PROPSYS.dll')
    .lookupFunction<InitVariantFromDoubleArrayNative, InitVariantFromDoubleArrayDart>('InitVariantFromDoubleArray');
// prgn : DOUBLE* -> Pointer<Double>
// cElems : DWORD -> Uint32
// pvar : VARIANT* out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

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

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

foreign import stdcall safe "InitVariantFromDoubleArray"
  c_InitVariantFromDoubleArray :: Ptr CDouble -> Word32 -> Ptr () -> IO Int32
-- prgn : DOUBLE* -> Ptr CDouble
-- 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 initvariantfromdoublearray =
  foreign "InitVariantFromDoubleArray"
    ((ptr double) @-> uint32_t @-> (ptr void) @-> returning int32_t)
(* prgn : DOUBLE* -> (ptr double) *)
(* 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 ("InitVariantFromDoubleArray" init-variant-from-double-array :convention :stdcall) :int32
  (prgn :pointer)   ; DOUBLE*
  (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 $InitVariantFromDoubleArray = Win32::API::More->new('PROPSYS',
    'int InitVariantFromDoubleArray(LPVOID prgn, DWORD cElems, LPVOID pvar)');
# my $ret = $InitVariantFromDoubleArray->Call($prgn, $cElems, $pvar);
# prgn : DOUBLE* -> 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。