ucal_open

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

void** ucal_open(
    const WORD* zoneID,
    INT len,
    LPCSTR locale,
    UCalendarType type,
    UErrorCode* status
);

<DllImport("icuin.dll", ExactSpelling:=True, CallingConvention:=CallingConvention.Cdecl)>
Public Shared Function ucal_open(
    ByRef zoneID As UShort,   ' WORD*
    len As Integer,   ' INT
    <MarshalAs(UnmanagedType.LPStr)> locale As String,   ' LPCSTR
    type As Integer,   ' UCalendarType
    ByRef status As Integer   ' UErrorCode* in/out
) As IntPtr
End Function

' zoneID : WORD*
' len : INT
' locale : LPCSTR
' type : UCalendarType
' status : UErrorCode* in/out
Declare PtrSafe Function ucal_open Lib "icuin" ( _
    ByRef zoneID As Integer, _
    ByVal len As Long, _
    ByVal locale As String, _
    ByVal type As Long, _
    ByRef status As Long) As LongPtr
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

ucal_open = ctypes.cdll.icuin.ucal_open
ucal_open.restype = ctypes.c_void_p
ucal_open.argtypes = [
    ctypes.POINTER(ctypes.c_ushort),  # zoneID : WORD*
    ctypes.c_int,  # len : INT
    wintypes.LPCSTR,  # locale : LPCSTR
    ctypes.c_int,  # type : UCalendarType
    ctypes.c_void_p,  # status : UErrorCode* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('icuin.dll')
ucal_open = Fiddle::Function.new(
  lib['ucal_open'],
  [
    Fiddle::TYPE_VOIDP,  # zoneID : WORD*
    Fiddle::TYPE_INT,  # len : INT
    Fiddle::TYPE_VOIDP,  # locale : LPCSTR
    Fiddle::TYPE_INT,  # type : UCalendarType
    Fiddle::TYPE_VOIDP,  # status : UErrorCode* in/out
  ],
  Fiddle::TYPE_VOIDP, Fiddle::Function::CDECL)

#[link(name = "icuin")]
extern "C" {
    fn ucal_open(
        zoneID: *const u16,  // WORD*
        len: i32,  // INT
        locale: *const u8,  // LPCSTR
        type: i32,  // UCalendarType
        status: *mut i32  // UErrorCode* in/out
    ) -> *mut *mut ();
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("icuin.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern IntPtr ucal_open(ref ushort zoneID, int len, [MarshalAs(UnmanagedType.LPStr)] string locale, int type, ref int status);
"@
$api = Add-Type -MemberDefinition $sig -Name 'icuin_ucal_open' -Namespace Win32 -PassThru
# $api::ucal_open(zoneID, len, locale, type, status)

#uselib "icuin.dll"
#func global ucal_open "ucal_open" sptr, sptr, sptr, sptr, sptr
; ucal_open varptr(zoneID), len, locale, type, varptr(status)   ; 戻り値は stat
; zoneID : WORD* -> "sptr"
; len : INT -> "sptr"
; locale : LPCSTR -> "sptr"
; type : UCalendarType -> "sptr"
; status : UErrorCode* in/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 (
	icuin = windows.NewLazySystemDLL("icuin.dll")
	procucal_open = icuin.NewProc("ucal_open")
)

// zoneID (WORD*), len (INT), locale (LPCSTR), type (UCalendarType), status (UErrorCode* in/out)
r1, _, err := procucal_open.Call(
	uintptr(zoneID),
	uintptr(len),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(locale))),
	uintptr(type),
	uintptr(status),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // void**

function ucal_open(
  zoneID: Pointer;   // WORD*
  len: Integer;   // INT
  locale: PAnsiChar;   // LPCSTR
  type: Integer;   // UCalendarType
  status: Pointer   // UErrorCode* in/out
): Pointer; cdecl;
  external 'icuin.dll' name 'ucal_open';

result := DllCall("icuin\ucal_open"
    , "Ptr", zoneID   ; WORD*
    , "Int", len   ; INT
    , "AStr", locale   ; LPCSTR
    , "Int", type   ; UCalendarType
    , "Ptr", status   ; UErrorCode* in/out
    , "Cdecl Ptr")   ; return: void**

●ucal_open(zoneID, len, locale, type, status) = DLL("icuin.dll", "void* ucal_open(void*, int, char*, int, void*)")
# 呼び出し: ucal_open(zoneID, len, locale, type, status)
# zoneID : WORD* -> "void*"
# len : INT -> "int"
# locale : LPCSTR -> "char*"
# type : UCalendarType -> "int"
# status : UErrorCode* 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)。
# ※cdecl関数。DLL()宣言はstdcall前提。cdeclは EXEC_PTR(`cdecl`,…) を使用。

const std = @import("std");

extern "icuin" fn ucal_open(
    zoneID: [*c]u16, // WORD*
    len: i32, // INT
    locale: [*c]const u8, // LPCSTR
    type: i32, // UCalendarType
    status: [*c]i32 // UErrorCode* in/out
) callconv(.c) ?*anyopaque;

proc ucal_open(
    zoneID: ptr uint16,  # WORD*
    len: int32,  # INT
    locale: cstring,  # LPCSTR
    `type`: int32,  # UCalendarType
    status: ptr int32  # UErrorCode* in/out
): pointer {.importc: "ucal_open", cdecl, dynlib: "icuin.dll".}

pragma(lib, "icuin");
extern(C)
void** ucal_open(
    ushort* zoneID,   // WORD*
    int len,   // INT
    const(char)* locale,   // LPCSTR
    int type,   // UCalendarType
    int* status   // UErrorCode* in/out
);

ccall((:ucal_open, "icuin.dll"), Ptr{Cvoid},
      (Ptr{UInt16}, Int32, Cstring, Int32, Ptr{Int32}),
      zoneID, len, locale, type, status)
# zoneID : WORD* -> Ptr{UInt16}
# len : INT -> Int32
# locale : LPCSTR -> Cstring
# type : UCalendarType -> Int32
# status : UErrorCode* in/out -> Ptr{Int32}

local ffi = require("ffi")
ffi.cdef[[
void** ucal_open(
    uint16_t* zoneID,
    int32_t len,
    const char* locale,
    int32_t type,
    int32_t* status);
]]
local icuin = ffi.load("icuin")
-- icuin.ucal_open(zoneID, len, locale, type, status)
-- zoneID : WORD*
-- len : INT
-- locale : LPCSTR
-- type : UCalendarType
-- status : UErrorCode* 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('icuin.dll');
const ucal_open = lib.func('__cdecl', 'ucal_open', 'void *', ['uint16_t *', 'int32_t', 'str', 'int32_t', 'int32_t *']);
// ucal_open(zoneID, len, locale, type, status)
// zoneID : WORD* -> 'uint16_t *'
// len : INT -> 'int32_t'
// locale : LPCSTR -> 'str'
// type : UCalendarType -> 'int32_t'
// status : UErrorCode* in/out -> 'int32_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("icuin.dll", {
  ucal_open: { parameters: ["pointer", "i32", "buffer", "i32", "pointer"], result: "pointer" },
});
// lib.symbols.ucal_open(zoneID, len, locale, type, status)
// zoneID : WORD* -> "pointer"
// len : INT -> "i32"
// locale : LPCSTR -> "buffer"
// type : UCalendarType -> "i32"
// status : UErrorCode* 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** ucal_open(
    uint16_t* zoneID,
    int32_t len,
    const char* locale,
    int32_t type,
    int32_t* status);
C, "icuin.dll");
// $ffi->ucal_open(zoneID, len, locale, type, status);
// zoneID : WORD*
// len : INT
// locale : LPCSTR
// type : UCalendarType
// status : UErrorCode* 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。

import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;

public interface Icuin extends Library {
    Icuin INSTANCE = Native.load("icuin", Icuin.class);
    Pointer ucal_open(
        ShortByReference zoneID,   // WORD*
        int len,   // INT
        String locale,   // LPCSTR
        int type,   // UCalendarType
        IntByReference status   // UErrorCode* in/out
    );
}

@[Link("icuin")]
lib Libicuin
  fun ucal_open = ucal_open(
    zoneID : UInt16*,   # WORD*
    len : Int32,   # INT
    locale : UInt8*,   # LPCSTR
    type_ : Int32,   # UCalendarType
    status : Int32*   # UErrorCode* in/out
  ) : Void**
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。

import 'dart:ffi';
import 'package:ffi/ffi.dart';

typedef ucal_openNative = Pointer<Void> Function(Pointer<Uint16>, Int32, Pointer<Utf8>, Int32, Pointer<Int32>);
typedef ucal_openDart = Pointer<Void> Function(Pointer<Uint16>, int, Pointer<Utf8>, int, Pointer<Int32>);
final ucal_open = DynamicLibrary.open('icuin.dll')
    .lookupFunction<ucal_openNative, ucal_openDart>('ucal_open');
// zoneID : WORD* -> Pointer<Uint16>
// len : INT -> Int32
// locale : LPCSTR -> Pointer<Utf8>
// type : UCalendarType -> Int32
// status : UErrorCode* in/out -> Pointer<Int32>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function ucal_open(
  zoneID: Pointer;   // WORD*
  len: Integer;   // INT
  locale: PAnsiChar;   // LPCSTR
  type: Integer;   // UCalendarType
  status: Pointer   // UErrorCode* in/out
): Pointer; cdecl;
  external 'icuin.dll' name 'ucal_open';

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

foreign import ccall safe "ucal_open"
  c_ucal_open :: Ptr Word16 -> Int32 -> CString -> Int32 -> Ptr Int32 -> IO (Ptr ())
-- zoneID : WORD* -> Ptr Word16
-- len : INT -> Int32
-- locale : LPCSTR -> CString
-- type : UCalendarType -> Int32
-- status : UErrorCode* in/out -> Ptr Int32
-- 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 ucal_open =
  foreign "ucal_open"
    ((ptr uint16_t) @-> int32_t @-> string @-> int32_t @-> (ptr int32_t) @-> returning (ptr void))
(* zoneID : WORD* -> (ptr uint16_t) *)
(* len : INT -> int32_t *)
(* locale : LPCSTR -> string *)
(* type : UCalendarType -> int32_t *)
(* status : UErrorCode* in/out -> (ptr int32_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 icuin (t "icuin.dll"))
(cffi:use-foreign-library icuin)

(cffi:defcfun ("ucal_open" ucal-open :convention :cdecl) :pointer
  (zone-id :pointer)   ; WORD*
  (len :int32)   ; INT
  (locale :string)   ; LPCSTR
  (type :int32)   ; UCalendarType
  (status :pointer))   ; UErrorCode* in/out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $ucal_open = Win32::API::More->new('icuin',
    'LPVOID ucal_open(LPVOID zoneID, int len, LPCSTR locale, int type, LPVOID status)');
# my $ret = $ucal_open->Call($zoneID, $len, $locale, $type, $status);
# zoneID : WORD* -> LPVOID
# len : INT -> int
# locale : LPCSTR -> LPCSTR
# type : UCalendarType -> int
# status : UErrorCode* 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。