ulocdata_open

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

ULocaleData* ulocdata_open(
    LPCSTR localeID,
    UErrorCode* status
);

<DllImport("icuin.dll", ExactSpelling:=True, CallingConvention:=CallingConvention.Cdecl)>
Public Shared Function ulocdata_open(
    <MarshalAs(UnmanagedType.LPStr)> localeID As String,   ' LPCSTR
    ByRef status As Integer   ' UErrorCode* in/out
) As IntPtr
End Function

' localeID : LPCSTR
' status : UErrorCode* in/out
Declare PtrSafe Function ulocdata_open Lib "icuin" ( _
    ByVal localeID As String, _
    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

ulocdata_open = ctypes.cdll.icuin.ulocdata_open
ulocdata_open.restype = ctypes.c_void_p
ulocdata_open.argtypes = [
    wintypes.LPCSTR,  # localeID : LPCSTR
    ctypes.c_void_p,  # status : UErrorCode* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('icuin.dll')
ulocdata_open = Fiddle::Function.new(
  lib['ulocdata_open'],
  [
    Fiddle::TYPE_VOIDP,  # localeID : LPCSTR
    Fiddle::TYPE_VOIDP,  # status : UErrorCode* in/out
  ],
  Fiddle::TYPE_VOIDP, Fiddle::Function::CDECL)

#[link(name = "icuin")]
extern "C" {
    fn ulocdata_open(
        localeID: *const u8,  // LPCSTR
        status: *mut i32  // UErrorCode* in/out
    ) -> *mut isize;
}
// crates: windows-sys provides ready-made bindings for this API.

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

#uselib "icuin.dll"
#func global ulocdata_open "ulocdata_open" sptr, sptr
; ulocdata_open localeID, varptr(status)   ; 戻り値は stat
; localeID : LPCSTR -> "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")
	proculocdata_open = icuin.NewProc("ulocdata_open")
)

// localeID (LPCSTR), status (UErrorCode* in/out)
r1, _, err := proculocdata_open.Call(
	uintptr(unsafe.Pointer(windows.BytePtrFromString(localeID))),
	uintptr(status),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // ULocaleData*

function ulocdata_open(
  localeID: PAnsiChar;   // LPCSTR
  status: Pointer   // UErrorCode* in/out
): Pointer; cdecl;
  external 'icuin.dll' name 'ulocdata_open';

result := DllCall("icuin\ulocdata_open"
    , "AStr", localeID   ; LPCSTR
    , "Ptr", status   ; UErrorCode* in/out
    , "Cdecl Ptr")   ; return: ULocaleData*

●ulocdata_open(localeID, status) = DLL("icuin.dll", "void* ulocdata_open(char*, void*)")
# 呼び出し: ulocdata_open(localeID, status)
# localeID : LPCSTR -> "char*"
# 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 ulocdata_open(
    localeID: [*c]const u8, // LPCSTR
    status: [*c]i32 // UErrorCode* in/out
) callconv(.c) [*c]isize;

proc ulocdata_open(
    localeID: cstring,  # LPCSTR
    status: ptr int32  # UErrorCode* in/out
): ptr int {.importc: "ulocdata_open", cdecl, dynlib: "icuin.dll".}

pragma(lib, "icuin");
extern(C)
ptrdiff_t* ulocdata_open(
    const(char)* localeID,   // LPCSTR
    int* status   // UErrorCode* in/out
);

ccall((:ulocdata_open, "icuin.dll"), Ptr{Int},
      (Cstring, Ptr{Int32}),
      localeID, status)
# localeID : LPCSTR -> Cstring
# status : UErrorCode* in/out -> Ptr{Int32}

local ffi = require("ffi")
ffi.cdef[[
intptr_t* ulocdata_open(
    const char* localeID,
    int32_t* status);
]]
local icuin = ffi.load("icuin")
-- icuin.ulocdata_open(localeID, status)
-- localeID : LPCSTR
-- 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 ulocdata_open = lib.func('__cdecl', 'ulocdata_open', 'intptr_t *', ['str', 'int32_t *']);
// ulocdata_open(localeID, status)
// localeID : LPCSTR -> 'str'
// 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", {
  ulocdata_open: { parameters: ["buffer", "pointer"], result: "pointer" },
});
// lib.symbols.ulocdata_open(localeID, status)
// localeID : LPCSTR -> "buffer"
// 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
intptr_t* ulocdata_open(
    const char* localeID,
    int32_t* status);
C, "icuin.dll");
// $ffi->ulocdata_open(localeID, status);
// localeID : LPCSTR
// 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 ulocdata_open(
        String localeID,   // LPCSTR
        IntByReference status   // UErrorCode* in/out
    );
}

@[Link("icuin")]
lib Libicuin
  fun ulocdata_open = ulocdata_open(
    localeID : UInt8*,   # LPCSTR
    status : Int32*   # UErrorCode* in/out
  ) : LibC::SSizeT*
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 ulocdata_openNative = Pointer<IntPtr> Function(Pointer<Utf8>, Pointer<Int32>);
typedef ulocdata_openDart = Pointer<IntPtr> Function(Pointer<Utf8>, Pointer<Int32>);
final ulocdata_open = DynamicLibrary.open('icuin.dll')
    .lookupFunction<ulocdata_openNative, ulocdata_openDart>('ulocdata_open');
// localeID : LPCSTR -> Pointer<Utf8>
// status : UErrorCode* in/out -> Pointer<Int32>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function ulocdata_open(
  localeID: PAnsiChar;   // LPCSTR
  status: Pointer   // UErrorCode* in/out
): Pointer; cdecl;
  external 'icuin.dll' name 'ulocdata_open';

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

foreign import ccall safe "ulocdata_open"
  c_ulocdata_open :: CString -> Ptr Int32 -> IO (Ptr CIntPtr)
-- localeID : LPCSTR -> CString
-- 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 ulocdata_open =
  foreign "ulocdata_open"
    (string @-> (ptr int32_t) @-> returning (ptr intptr_t))
(* localeID : LPCSTR -> string *)
(* 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 ("ulocdata_open" ulocdata-open :convention :cdecl) :pointer
  (locale-id :string)   ; LPCSTR
  (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 $ulocdata_open = Win32::API::More->new('icuin',
    'LPVOID ulocdata_open(LPCSTR localeID, LPVOID status)');
# my $ret = $ulocdata_open->Call($localeID, $status);
# localeID : LPCSTR -> LPCSTR
# 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。