ures_getStringByIndex

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

WORD* ures_getStringByIndex(
    const UResourceBundle* resourceBundle,
    INT indexS,
    INT* len,
    UErrorCode* status
);

<DllImport("icuuc.dll", ExactSpelling:=True, CallingConvention:=CallingConvention.Cdecl)>
Public Shared Function ures_getStringByIndex(
    ByRef resourceBundle As IntPtr,   ' UResourceBundle*
    indexS As Integer,   ' INT
    ByRef len As Integer,   ' INT* in/out
    ByRef status As Integer   ' UErrorCode* in/out
) As IntPtr
End Function

' resourceBundle : UResourceBundle*
' indexS : INT
' len : INT* in/out
' status : UErrorCode* in/out
Declare PtrSafe Function ures_getStringByIndex Lib "icuuc" ( _
    ByRef resourceBundle As LongPtr, _
    ByVal indexS As Long, _
    ByRef len 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

ures_getStringByIndex = ctypes.cdll.icuuc.ures_getStringByIndex
ures_getStringByIndex.restype = ctypes.c_void_p
ures_getStringByIndex.argtypes = [
    ctypes.c_void_p,  # resourceBundle : UResourceBundle*
    ctypes.c_int,  # indexS : INT
    ctypes.POINTER(ctypes.c_int),  # len : INT* in/out
    ctypes.c_void_p,  # status : UErrorCode* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('icuuc.dll')
ures_getStringByIndex = Fiddle::Function.new(
  lib['ures_getStringByIndex'],
  [
    Fiddle::TYPE_VOIDP,  # resourceBundle : UResourceBundle*
    Fiddle::TYPE_INT,  # indexS : INT
    Fiddle::TYPE_VOIDP,  # len : INT* in/out
    Fiddle::TYPE_VOIDP,  # status : UErrorCode* in/out
  ],
  Fiddle::TYPE_VOIDP, Fiddle::Function::CDECL)

#[link(name = "icuuc")]
extern "C" {
    fn ures_getStringByIndex(
        resourceBundle: *const isize,  // UResourceBundle*
        indexS: i32,  // INT
        len: *mut i32,  // INT* in/out
        status: *mut i32  // UErrorCode* in/out
    ) -> *mut u16;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("icuuc.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern IntPtr ures_getStringByIndex(ref IntPtr resourceBundle, int indexS, ref int len, ref int status);
"@
$api = Add-Type -MemberDefinition $sig -Name 'icuuc_ures_getStringByIndex' -Namespace Win32 -PassThru
# $api::ures_getStringByIndex(resourceBundle, indexS, len, status)

#uselib "icuuc.dll"
#func global ures_getStringByIndex "ures_getStringByIndex" sptr, sptr, sptr, sptr
; ures_getStringByIndex varptr(resourceBundle), indexS, varptr(len), varptr(status)   ; 戻り値は stat
; resourceBundle : UResourceBundle* -> "sptr"
; indexS : INT -> "sptr"
; len : INT* in/out -> "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 (
	icuuc = windows.NewLazySystemDLL("icuuc.dll")
	procures_getStringByIndex = icuuc.NewProc("ures_getStringByIndex")
)

// resourceBundle (UResourceBundle*), indexS (INT), len (INT* in/out), status (UErrorCode* in/out)
r1, _, err := procures_getStringByIndex.Call(
	uintptr(resourceBundle),
	uintptr(indexS),
	uintptr(len),
	uintptr(status),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // WORD*

function ures_getStringByIndex(
  resourceBundle: Pointer;   // UResourceBundle*
  indexS: Integer;   // INT
  len: Pointer;   // INT* in/out
  status: Pointer   // UErrorCode* in/out
): Pointer; cdecl;
  external 'icuuc.dll' name 'ures_getStringByIndex';

result := DllCall("icuuc\ures_getStringByIndex"
    , "Ptr", resourceBundle   ; UResourceBundle*
    , "Int", indexS   ; INT
    , "Ptr", len   ; INT* in/out
    , "Ptr", status   ; UErrorCode* in/out
    , "Cdecl Ptr")   ; return: WORD*

●ures_getStringByIndex(resourceBundle, indexS, len, status) = DLL("icuuc.dll", "void* ures_getStringByIndex(void*, int, void*, void*)")
# 呼び出し: ures_getStringByIndex(resourceBundle, indexS, len, status)
# resourceBundle : UResourceBundle* -> "void*"
# indexS : INT -> "int"
# len : INT* in/out -> "void*"
# 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 "icuuc" fn ures_getStringByIndex(
    resourceBundle: [*c]isize, // UResourceBundle*
    indexS: i32, // INT
    len: [*c]i32, // INT* in/out
    status: [*c]i32 // UErrorCode* in/out
) callconv(.c) [*c]u16;

proc ures_getStringByIndex(
    resourceBundle: ptr int,  # UResourceBundle*
    indexS: int32,  # INT
    len: ptr int32,  # INT* in/out
    status: ptr int32  # UErrorCode* in/out
): ptr uint16 {.importc: "ures_getStringByIndex", cdecl, dynlib: "icuuc.dll".}

pragma(lib, "icuuc");
extern(C)
ushort* ures_getStringByIndex(
    ptrdiff_t* resourceBundle,   // UResourceBundle*
    int indexS,   // INT
    int* len,   // INT* in/out
    int* status   // UErrorCode* in/out
);

ccall((:ures_getStringByIndex, "icuuc.dll"), Ptr{UInt16},
      (Ptr{Int}, Int32, Ptr{Int32}, Ptr{Int32}),
      resourceBundle, indexS, len, status)
# resourceBundle : UResourceBundle* -> Ptr{Int}
# indexS : INT -> Int32
# len : INT* in/out -> Ptr{Int32}
# status : UErrorCode* in/out -> Ptr{Int32}

local ffi = require("ffi")
ffi.cdef[[
uint16_t* ures_getStringByIndex(
    intptr_t* resourceBundle,
    int32_t indexS,
    int32_t* len,
    int32_t* status);
]]
local icuuc = ffi.load("icuuc")
-- icuuc.ures_getStringByIndex(resourceBundle, indexS, len, status)
-- resourceBundle : UResourceBundle*
-- indexS : INT
-- len : INT* in/out
-- 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('icuuc.dll');
const ures_getStringByIndex = lib.func('__cdecl', 'ures_getStringByIndex', 'uint16_t *', ['intptr_t *', 'int32_t', 'int32_t *', 'int32_t *']);
// ures_getStringByIndex(resourceBundle, indexS, len, status)
// resourceBundle : UResourceBundle* -> 'intptr_t *'
// indexS : INT -> 'int32_t'
// len : INT* in/out -> '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("icuuc.dll", {
  ures_getStringByIndex: { parameters: ["pointer", "i32", "pointer", "pointer"], result: "pointer" },
});
// lib.symbols.ures_getStringByIndex(resourceBundle, indexS, len, status)
// resourceBundle : UResourceBundle* -> "pointer"
// indexS : INT -> "i32"
// len : INT* in/out -> "pointer"
// 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
uint16_t* ures_getStringByIndex(
    intptr_t* resourceBundle,
    int32_t indexS,
    int32_t* len,
    int32_t* status);
C, "icuuc.dll");
// $ffi->ures_getStringByIndex(resourceBundle, indexS, len, status);
// resourceBundle : UResourceBundle*
// indexS : INT
// len : INT* in/out
// 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 Icuuc extends Library {
    Icuuc INSTANCE = Native.load("icuuc", Icuuc.class);
    Pointer ures_getStringByIndex(
        LongByReference resourceBundle,   // UResourceBundle*
        int indexS,   // INT
        IntByReference len,   // INT* in/out
        IntByReference status   // UErrorCode* in/out
    );
}

@[Link("icuuc")]
lib Libicuuc
  fun ures_getStringByIndex = ures_getStringByIndex(
    resourceBundle : LibC::SSizeT*,   # UResourceBundle*
    indexS : Int32,   # INT
    len : Int32*,   # INT* in/out
    status : Int32*   # UErrorCode* in/out
  ) : UInt16*
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 ures_getStringByIndexNative = Pointer<Uint16> Function(Pointer<IntPtr>, Int32, Pointer<Int32>, Pointer<Int32>);
typedef ures_getStringByIndexDart = Pointer<Uint16> Function(Pointer<IntPtr>, int, Pointer<Int32>, Pointer<Int32>);
final ures_getStringByIndex = DynamicLibrary.open('icuuc.dll')
    .lookupFunction<ures_getStringByIndexNative, ures_getStringByIndexDart>('ures_getStringByIndex');
// resourceBundle : UResourceBundle* -> Pointer<IntPtr>
// indexS : INT -> Int32
// len : INT* in/out -> Pointer<Int32>
// status : UErrorCode* in/out -> Pointer<Int32>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function ures_getStringByIndex(
  resourceBundle: Pointer;   // UResourceBundle*
  indexS: Integer;   // INT
  len: Pointer;   // INT* in/out
  status: Pointer   // UErrorCode* in/out
): Pointer; cdecl;
  external 'icuuc.dll' name 'ures_getStringByIndex';

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

foreign import ccall safe "ures_getStringByIndex"
  c_ures_getStringByIndex :: Ptr CIntPtr -> Int32 -> Ptr Int32 -> Ptr Int32 -> IO (Ptr Word16)
-- resourceBundle : UResourceBundle* -> Ptr CIntPtr
-- indexS : INT -> Int32
-- len : INT* in/out -> Ptr 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 ures_getstringbyindex =
  foreign "ures_getStringByIndex"
    ((ptr intptr_t) @-> int32_t @-> (ptr int32_t) @-> (ptr int32_t) @-> returning (ptr uint16_t))
(* resourceBundle : UResourceBundle* -> (ptr intptr_t) *)
(* indexS : INT -> int32_t *)
(* len : INT* in/out -> (ptr 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 icuuc (t "icuuc.dll"))
(cffi:use-foreign-library icuuc)

(cffi:defcfun ("ures_getStringByIndex" ures-get-string-by-index :convention :cdecl) :pointer
  (resource-bundle :pointer)   ; UResourceBundle*
  (index-s :int32)   ; INT
  (len :pointer)   ; INT* in/out
  (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 $ures_getStringByIndex = Win32::API::More->new('icuuc',
    'LPVOID ures_getStringByIndex(LPVOID resourceBundle, int indexS, LPVOID len, LPVOID status)');
# my $ret = $ures_getStringByIndex->Call($resourceBundle, $indexS, $len, $status);
# resourceBundle : UResourceBundle* -> LPVOID
# indexS : INT -> int
# len : INT* in/out -> LPVOID
# 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。