uloc_toLegacyType

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

LPSTR uloc_toLegacyType(
    LPCSTR keyword,
    LPCSTR value
);

<DllImport("icuuc.dll", ExactSpelling:=True, CallingConvention:=CallingConvention.Cdecl)>
Public Shared Function uloc_toLegacyType(
    <MarshalAs(UnmanagedType.LPStr)> keyword As String,   ' LPCSTR
    <MarshalAs(UnmanagedType.LPStr)> value As String   ' LPCSTR
) As IntPtr
End Function

' keyword : LPCSTR
' value : LPCSTR
Declare PtrSafe Function uloc_toLegacyType Lib "icuuc" ( _
    ByVal keyword As String, _
    ByVal value As String) As LongPtr
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

uloc_toLegacyType = ctypes.cdll.icuuc.uloc_toLegacyType
uloc_toLegacyType.restype = wintypes.LPSTR
uloc_toLegacyType.argtypes = [
    wintypes.LPCSTR,  # keyword : LPCSTR
    wintypes.LPCSTR,  # value : LPCSTR
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('icuuc.dll')
uloc_toLegacyType = Fiddle::Function.new(
  lib['uloc_toLegacyType'],
  [
    Fiddle::TYPE_VOIDP,  # keyword : LPCSTR
    Fiddle::TYPE_VOIDP,  # value : LPCSTR
  ],
  Fiddle::TYPE_VOIDP, Fiddle::Function::CDECL)

#[link(name = "icuuc")]
extern "C" {
    fn uloc_toLegacyType(
        keyword: *const u8,  // LPCSTR
        value: *const u8  // LPCSTR
    ) -> *mut u8;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("icuuc.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern IntPtr uloc_toLegacyType([MarshalAs(UnmanagedType.LPStr)] string keyword, [MarshalAs(UnmanagedType.LPStr)] string value);
"@
$api = Add-Type -MemberDefinition $sig -Name 'icuuc_uloc_toLegacyType' -Namespace Win32 -PassThru
# $api::uloc_toLegacyType(keyword, value)

#uselib "icuuc.dll"
#func global uloc_toLegacyType "uloc_toLegacyType" sptr, sptr
; uloc_toLegacyType keyword, value   ; 戻り値は stat
; keyword : LPCSTR -> "sptr"
; value : LPCSTR -> "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。

#uselib "icuuc.dll"
#cfunc global uloc_toLegacyType "uloc_toLegacyType" str, str
; res = uloc_toLegacyType(keyword, value)
; keyword : LPCSTR -> "str"
; value : LPCSTR -> "str"

; LPSTR uloc_toLegacyType(LPCSTR keyword, LPCSTR value)
#uselib "icuuc.dll"
#cfunc global uloc_toLegacyType "uloc_toLegacyType" str, str
; res = uloc_toLegacyType(keyword, value)
; keyword : LPCSTR -> "str"
; value : LPCSTR -> "str"

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	icuuc = windows.NewLazySystemDLL("icuuc.dll")
	proculoc_toLegacyType = icuuc.NewProc("uloc_toLegacyType")
)

// keyword (LPCSTR), value (LPCSTR)
r1, _, err := proculoc_toLegacyType.Call(
	uintptr(unsafe.Pointer(windows.BytePtrFromString(keyword))),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(value))),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // LPSTR

function uloc_toLegacyType(
  keyword: PAnsiChar;   // LPCSTR
  value: PAnsiChar   // LPCSTR
): PAnsiChar; cdecl;
  external 'icuuc.dll' name 'uloc_toLegacyType';

result := DllCall("icuuc\uloc_toLegacyType"
    , "AStr", keyword   ; LPCSTR
    , "AStr", value   ; LPCSTR
    , "Cdecl Ptr")   ; return: LPSTR

●uloc_toLegacyType(keyword, value) = DLL("icuuc.dll", "char* uloc_toLegacyType(char*, char*)")
# 呼び出し: uloc_toLegacyType(keyword, value)
# keyword : LPCSTR -> "char*"
# value : LPCSTR -> "char*"
# 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 "icuuc" fn uloc_toLegacyType(
    keyword: [*c]const u8, // LPCSTR
    value: [*c]const u8 // LPCSTR
) callconv(.c) [*c]const u8;

proc uloc_toLegacyType(
    keyword: cstring,  # LPCSTR
    value: cstring  # LPCSTR
): cstring {.importc: "uloc_toLegacyType", cdecl, dynlib: "icuuc.dll".}

pragma(lib, "icuuc");
extern(C)
const(char)* uloc_toLegacyType(
    const(char)* keyword,   // LPCSTR
    const(char)* value   // LPCSTR
);

ccall((:uloc_toLegacyType, "icuuc.dll"), Cstring,
      (Cstring, Cstring),
      keyword, value)
# keyword : LPCSTR -> Cstring
# value : LPCSTR -> Cstring

local ffi = require("ffi")
ffi.cdef[[
const char* uloc_toLegacyType(
    const char* keyword,
    const char* value);
]]
local icuuc = ffi.load("icuuc")
-- icuuc.uloc_toLegacyType(keyword, value)
-- keyword : LPCSTR
-- value : LPCSTR
-- 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('icuuc.dll');
const uloc_toLegacyType = lib.func('__cdecl', 'uloc_toLegacyType', 'void *', ['str', 'str']);
// uloc_toLegacyType(keyword, value)
// keyword : LPCSTR -> 'str'
// value : LPCSTR -> 'str'
// 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("icuuc.dll", {
  uloc_toLegacyType: { parameters: ["buffer", "buffer"], result: "pointer" },
});
// lib.symbols.uloc_toLegacyType(keyword, value)
// keyword : LPCSTR -> "buffer"
// value : LPCSTR -> "buffer"
// 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
const char* uloc_toLegacyType(
    const char* keyword,
    const char* value);
C, "icuuc.dll");
// $ffi->uloc_toLegacyType(keyword, value);
// keyword : LPCSTR
// value : LPCSTR
// 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 Icuuc extends Library {
    Icuuc INSTANCE = Native.load("icuuc", Icuuc.class);
    Pointer uloc_toLegacyType(
        String keyword,   // LPCSTR
        String value   // LPCSTR
    );
}

@[Link("icuuc")]
lib Libicuuc
  fun uloc_toLegacyType = uloc_toLegacyType(
    keyword : UInt8*,   # LPCSTR
    value : UInt8*   # LPCSTR
  ) : UInt8*
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 uloc_toLegacyTypeNative = Pointer<Utf8> Function(Pointer<Utf8>, Pointer<Utf8>);
typedef uloc_toLegacyTypeDart = Pointer<Utf8> Function(Pointer<Utf8>, Pointer<Utf8>);
final uloc_toLegacyType = DynamicLibrary.open('icuuc.dll')
    .lookupFunction<uloc_toLegacyTypeNative, uloc_toLegacyTypeDart>('uloc_toLegacyType');
// keyword : LPCSTR -> Pointer<Utf8>
// value : LPCSTR -> Pointer<Utf8>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function uloc_toLegacyType(
  keyword: PAnsiChar;   // LPCSTR
  value: PAnsiChar   // LPCSTR
): PAnsiChar; cdecl;
  external 'icuuc.dll' name 'uloc_toLegacyType';

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

foreign import ccall safe "uloc_toLegacyType"
  c_uloc_toLegacyType :: CString -> CString -> IO CString
-- keyword : LPCSTR -> CString
-- value : LPCSTR -> CString
-- 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 uloc_tolegacytype =
  foreign "uloc_toLegacyType"
    (string @-> string @-> returning string)
(* keyword : LPCSTR -> string *)
(* value : LPCSTR -> string *)
(* 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 icuuc (t "icuuc.dll"))
(cffi:use-foreign-library icuuc)

(cffi:defcfun ("uloc_toLegacyType" uloc-to-legacy-type :convention :cdecl) :string
  (keyword :string)   ; LPCSTR
  (value :string))   ; LPCSTR
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $uloc_toLegacyType = Win32::API::More->new('icuuc',
    'LPSTR uloc_toLegacyType(LPCSTR keyword, LPCSTR value)');
# my $ret = $uloc_toLegacyType->Call($keyword, $value);
# keyword : LPCSTR -> LPCSTR
# value : LPCSTR -> LPCSTR
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。