ucal_getKeywordValuesForLocale

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

UEnumeration* ucal_getKeywordValuesForLocale(
    LPCSTR key,
    LPCSTR locale,
    CHAR commonlyUsed,
    UErrorCode* status
);

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

' key : LPCSTR
' locale : LPCSTR
' commonlyUsed : CHAR
' status : UErrorCode* in/out
Declare PtrSafe Function ucal_getKeywordValuesForLocale Lib "icuin" ( _
    ByVal key As String, _
    ByVal locale As String, _
    ByVal commonlyUsed As Byte, _
    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_getKeywordValuesForLocale = ctypes.cdll.icuin.ucal_getKeywordValuesForLocale
ucal_getKeywordValuesForLocale.restype = ctypes.c_void_p
ucal_getKeywordValuesForLocale.argtypes = [
    wintypes.LPCSTR,  # key : LPCSTR
    wintypes.LPCSTR,  # locale : LPCSTR
    ctypes.c_byte,  # commonlyUsed : CHAR
    ctypes.c_void_p,  # status : UErrorCode* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('icuin.dll')
ucal_getKeywordValuesForLocale = Fiddle::Function.new(
  lib['ucal_getKeywordValuesForLocale'],
  [
    Fiddle::TYPE_VOIDP,  # key : LPCSTR
    Fiddle::TYPE_VOIDP,  # locale : LPCSTR
    Fiddle::TYPE_CHAR,  # commonlyUsed : CHAR
    Fiddle::TYPE_VOIDP,  # status : UErrorCode* in/out
  ],
  Fiddle::TYPE_VOIDP, Fiddle::Function::CDECL)

#[link(name = "icuin")]
extern "C" {
    fn ucal_getKeywordValuesForLocale(
        key: *const u8,  // LPCSTR
        locale: *const u8,  // LPCSTR
        commonlyUsed: i8,  // CHAR
        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 ucal_getKeywordValuesForLocale([MarshalAs(UnmanagedType.LPStr)] string key, [MarshalAs(UnmanagedType.LPStr)] string locale, sbyte commonlyUsed, ref int status);
"@
$api = Add-Type -MemberDefinition $sig -Name 'icuin_ucal_getKeywordValuesForLocale' -Namespace Win32 -PassThru
# $api::ucal_getKeywordValuesForLocale(key, locale, commonlyUsed, status)

#uselib "icuin.dll"
#func global ucal_getKeywordValuesForLocale "ucal_getKeywordValuesForLocale" sptr, sptr, sptr, sptr
; ucal_getKeywordValuesForLocale key, locale, commonlyUsed, varptr(status)   ; 戻り値は stat
; key : LPCSTR -> "sptr"
; locale : LPCSTR -> "sptr"
; commonlyUsed : CHAR -> "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_getKeywordValuesForLocale = icuin.NewProc("ucal_getKeywordValuesForLocale")
)

// key (LPCSTR), locale (LPCSTR), commonlyUsed (CHAR), status (UErrorCode* in/out)
r1, _, err := procucal_getKeywordValuesForLocale.Call(
	uintptr(unsafe.Pointer(windows.BytePtrFromString(key))),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(locale))),
	uintptr(commonlyUsed),
	uintptr(status),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // UEnumeration*

function ucal_getKeywordValuesForLocale(
  key: PAnsiChar;   // LPCSTR
  locale: PAnsiChar;   // LPCSTR
  commonlyUsed: Shortint;   // CHAR
  status: Pointer   // UErrorCode* in/out
): Pointer; cdecl;
  external 'icuin.dll' name 'ucal_getKeywordValuesForLocale';

result := DllCall("icuin\ucal_getKeywordValuesForLocale"
    , "AStr", key   ; LPCSTR
    , "AStr", locale   ; LPCSTR
    , "Char", commonlyUsed   ; CHAR
    , "Ptr", status   ; UErrorCode* in/out
    , "Cdecl Ptr")   ; return: UEnumeration*

●ucal_getKeywordValuesForLocale(key, locale, commonlyUsed, status) = DLL("icuin.dll", "void* ucal_getKeywordValuesForLocale(char*, char*, char, void*)")
# 呼び出し: ucal_getKeywordValuesForLocale(key, locale, commonlyUsed, status)
# key : LPCSTR -> "char*"
# locale : LPCSTR -> "char*"
# commonlyUsed : CHAR -> "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 ucal_getKeywordValuesForLocale(
    key: [*c]const u8, // LPCSTR
    locale: [*c]const u8, // LPCSTR
    commonlyUsed: i8, // CHAR
    status: [*c]i32 // UErrorCode* in/out
) callconv(.c) [*c]isize;

proc ucal_getKeywordValuesForLocale(
    key: cstring,  # LPCSTR
    locale: cstring,  # LPCSTR
    commonlyUsed: int8,  # CHAR
    status: ptr int32  # UErrorCode* in/out
): ptr int {.importc: "ucal_getKeywordValuesForLocale", cdecl, dynlib: "icuin.dll".}

pragma(lib, "icuin");
extern(C)
ptrdiff_t* ucal_getKeywordValuesForLocale(
    const(char)* key,   // LPCSTR
    const(char)* locale,   // LPCSTR
    byte commonlyUsed,   // CHAR
    int* status   // UErrorCode* in/out
);

ccall((:ucal_getKeywordValuesForLocale, "icuin.dll"), Ptr{Int},
      (Cstring, Cstring, Int8, Ptr{Int32}),
      key, locale, commonlyUsed, status)
# key : LPCSTR -> Cstring
# locale : LPCSTR -> Cstring
# commonlyUsed : CHAR -> Int8
# status : UErrorCode* in/out -> Ptr{Int32}

local ffi = require("ffi")
ffi.cdef[[
intptr_t* ucal_getKeywordValuesForLocale(
    const char* key,
    const char* locale,
    int8_t commonlyUsed,
    int32_t* status);
]]
local icuin = ffi.load("icuin")
-- icuin.ucal_getKeywordValuesForLocale(key, locale, commonlyUsed, status)
-- key : LPCSTR
-- locale : LPCSTR
-- commonlyUsed : CHAR
-- 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_getKeywordValuesForLocale = lib.func('__cdecl', 'ucal_getKeywordValuesForLocale', 'intptr_t *', ['str', 'str', 'int8_t', 'int32_t *']);
// ucal_getKeywordValuesForLocale(key, locale, commonlyUsed, status)
// key : LPCSTR -> 'str'
// locale : LPCSTR -> 'str'
// commonlyUsed : CHAR -> 'int8_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_getKeywordValuesForLocale: { parameters: ["buffer", "buffer", "i8", "pointer"], result: "pointer" },
});
// lib.symbols.ucal_getKeywordValuesForLocale(key, locale, commonlyUsed, status)
// key : LPCSTR -> "buffer"
// locale : LPCSTR -> "buffer"
// commonlyUsed : CHAR -> "i8"
// 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* ucal_getKeywordValuesForLocale(
    const char* key,
    const char* locale,
    int8_t commonlyUsed,
    int32_t* status);
C, "icuin.dll");
// $ffi->ucal_getKeywordValuesForLocale(key, locale, commonlyUsed, status);
// key : LPCSTR
// locale : LPCSTR
// commonlyUsed : CHAR
// 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_getKeywordValuesForLocale(
        String key,   // LPCSTR
        String locale,   // LPCSTR
        byte commonlyUsed,   // CHAR
        IntByReference status   // UErrorCode* in/out
    );
}

@[Link("icuin")]
lib Libicuin
  fun ucal_getKeywordValuesForLocale = ucal_getKeywordValuesForLocale(
    key : UInt8*,   # LPCSTR
    locale : UInt8*,   # LPCSTR
    commonlyUsed : Int8,   # CHAR
    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 ucal_getKeywordValuesForLocaleNative = Pointer<IntPtr> Function(Pointer<Utf8>, Pointer<Utf8>, Int8, Pointer<Int32>);
typedef ucal_getKeywordValuesForLocaleDart = Pointer<IntPtr> Function(Pointer<Utf8>, Pointer<Utf8>, int, Pointer<Int32>);
final ucal_getKeywordValuesForLocale = DynamicLibrary.open('icuin.dll')
    .lookupFunction<ucal_getKeywordValuesForLocaleNative, ucal_getKeywordValuesForLocaleDart>('ucal_getKeywordValuesForLocale');
// key : LPCSTR -> Pointer<Utf8>
// locale : LPCSTR -> Pointer<Utf8>
// commonlyUsed : CHAR -> Int8
// status : UErrorCode* in/out -> Pointer<Int32>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function ucal_getKeywordValuesForLocale(
  key: PAnsiChar;   // LPCSTR
  locale: PAnsiChar;   // LPCSTR
  commonlyUsed: Shortint;   // CHAR
  status: Pointer   // UErrorCode* in/out
): Pointer; cdecl;
  external 'icuin.dll' name 'ucal_getKeywordValuesForLocale';

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

foreign import ccall safe "ucal_getKeywordValuesForLocale"
  c_ucal_getKeywordValuesForLocale :: CString -> CString -> Int8 -> Ptr Int32 -> IO (Ptr CIntPtr)
-- key : LPCSTR -> CString
-- locale : LPCSTR -> CString
-- commonlyUsed : CHAR -> Int8
-- 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_getkeywordvaluesforlocale =
  foreign "ucal_getKeywordValuesForLocale"
    (string @-> string @-> int8_t @-> (ptr int32_t) @-> returning (ptr intptr_t))
(* key : LPCSTR -> string *)
(* locale : LPCSTR -> string *)
(* commonlyUsed : CHAR -> int8_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_getKeywordValuesForLocale" ucal-get-keyword-values-for-locale :convention :cdecl) :pointer
  (key :string)   ; LPCSTR
  (locale :string)   ; LPCSTR
  (commonly-used :int8)   ; CHAR
  (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_getKeywordValuesForLocale = Win32::API::More->new('icuin',
    'LPVOID ucal_getKeywordValuesForLocale(LPCSTR key, LPCSTR locale, char commonlyUsed, LPVOID status)');
# my $ret = $ucal_getKeywordValuesForLocale->Call($key, $locale, $commonlyUsed, $status);
# key : LPCSTR -> LPCSTR
# locale : LPCSTR -> LPCSTR
# commonlyUsed : CHAR -> char
# 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。