uenum_next

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

LPSTR uenum_next(
    UEnumeration* en,
    INT* resultLength,
    UErrorCode* status
);

<DllImport("icuuc.dll", ExactSpelling:=True, CallingConvention:=CallingConvention.Cdecl)>
Public Shared Function uenum_next(
    ByRef en As IntPtr,   ' UEnumeration* in/out
    ByRef resultLength As Integer,   ' INT* in/out
    ByRef status As Integer   ' UErrorCode* in/out
) As IntPtr
End Function

' en : UEnumeration* in/out
' resultLength : INT* in/out
' status : UErrorCode* in/out
Declare PtrSafe Function uenum_next Lib "icuuc" ( _
    ByRef en As LongPtr, _
    ByRef resultLength 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

uenum_next = ctypes.cdll.icuuc.uenum_next
uenum_next.restype = wintypes.LPSTR
uenum_next.argtypes = [
    ctypes.c_void_p,  # en : UEnumeration* in/out
    ctypes.POINTER(ctypes.c_int),  # resultLength : INT* in/out
    ctypes.c_void_p,  # status : UErrorCode* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('icuuc.dll')
uenum_next = Fiddle::Function.new(
  lib['uenum_next'],
  [
    Fiddle::TYPE_VOIDP,  # en : UEnumeration* in/out
    Fiddle::TYPE_VOIDP,  # resultLength : INT* in/out
    Fiddle::TYPE_VOIDP,  # status : UErrorCode* in/out
  ],
  Fiddle::TYPE_VOIDP, Fiddle::Function::CDECL)

#[link(name = "icuuc")]
extern "C" {
    fn uenum_next(
        en: *mut isize,  // UEnumeration* in/out
        resultLength: *mut i32,  // INT* in/out
        status: *mut i32  // UErrorCode* in/out
    ) -> *mut u8;
}
// crates: windows-sys provides ready-made bindings for this API.

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

#uselib "icuuc.dll"
#func global uenum_next "uenum_next" sptr, sptr, sptr
; uenum_next varptr(en), varptr(resultLength), varptr(status)   ; 戻り値は stat
; en : UEnumeration* in/out -> "sptr"
; resultLength : 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")
	procuenum_next = icuuc.NewProc("uenum_next")
)

// en (UEnumeration* in/out), resultLength (INT* in/out), status (UErrorCode* in/out)
r1, _, err := procuenum_next.Call(
	uintptr(en),
	uintptr(resultLength),
	uintptr(status),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // LPSTR

function uenum_next(
  en: Pointer;   // UEnumeration* in/out
  resultLength: Pointer;   // INT* in/out
  status: Pointer   // UErrorCode* in/out
): PAnsiChar; cdecl;
  external 'icuuc.dll' name 'uenum_next';

result := DllCall("icuuc\uenum_next"
    , "Ptr", en   ; UEnumeration* in/out
    , "Ptr", resultLength   ; INT* in/out
    , "Ptr", status   ; UErrorCode* in/out
    , "Cdecl Ptr")   ; return: LPSTR

●uenum_next(en, resultLength, status) = DLL("icuuc.dll", "char* uenum_next(void*, void*, void*)")
# 呼び出し: uenum_next(en, resultLength, status)
# en : UEnumeration* in/out -> "void*"
# resultLength : 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 uenum_next(
    en: [*c]isize, // UEnumeration* in/out
    resultLength: [*c]i32, // INT* in/out
    status: [*c]i32 // UErrorCode* in/out
) callconv(.c) [*c]const u8;

proc uenum_next(
    en: ptr int,  # UEnumeration* in/out
    resultLength: ptr int32,  # INT* in/out
    status: ptr int32  # UErrorCode* in/out
): cstring {.importc: "uenum_next", cdecl, dynlib: "icuuc.dll".}

pragma(lib, "icuuc");
extern(C)
const(char)* uenum_next(
    ptrdiff_t* en,   // UEnumeration* in/out
    int* resultLength,   // INT* in/out
    int* status   // UErrorCode* in/out
);

ccall((:uenum_next, "icuuc.dll"), Cstring,
      (Ptr{Int}, Ptr{Int32}, Ptr{Int32}),
      en, resultLength, status)
# en : UEnumeration* in/out -> Ptr{Int}
# resultLength : INT* in/out -> Ptr{Int32}
# status : UErrorCode* in/out -> Ptr{Int32}

local ffi = require("ffi")
ffi.cdef[[
const char* uenum_next(
    intptr_t* en,
    int32_t* resultLength,
    int32_t* status);
]]
local icuuc = ffi.load("icuuc")
-- icuuc.uenum_next(en, resultLength, status)
-- en : UEnumeration* in/out
-- resultLength : 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 uenum_next = lib.func('__cdecl', 'uenum_next', 'void *', ['intptr_t *', 'int32_t *', 'int32_t *']);
// uenum_next(en, resultLength, status)
// en : UEnumeration* in/out -> 'intptr_t *'
// resultLength : 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", {
  uenum_next: { parameters: ["pointer", "pointer", "pointer"], result: "pointer" },
});
// lib.symbols.uenum_next(en, resultLength, status)
// en : UEnumeration* in/out -> "pointer"
// resultLength : 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
const char* uenum_next(
    intptr_t* en,
    int32_t* resultLength,
    int32_t* status);
C, "icuuc.dll");
// $ffi->uenum_next(en, resultLength, status);
// en : UEnumeration* in/out
// resultLength : 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 uenum_next(
        LongByReference en,   // UEnumeration* in/out
        IntByReference resultLength,   // INT* in/out
        IntByReference status   // UErrorCode* in/out
    );
}

@[Link("icuuc")]
lib Libicuuc
  fun uenum_next = uenum_next(
    en : LibC::SSizeT*,   # UEnumeration* in/out
    resultLength : Int32*,   # INT* in/out
    status : Int32*   # UErrorCode* in/out
  ) : 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 uenum_nextNative = Pointer<Utf8> Function(Pointer<IntPtr>, Pointer<Int32>, Pointer<Int32>);
typedef uenum_nextDart = Pointer<Utf8> Function(Pointer<IntPtr>, Pointer<Int32>, Pointer<Int32>);
final uenum_next = DynamicLibrary.open('icuuc.dll')
    .lookupFunction<uenum_nextNative, uenum_nextDart>('uenum_next');
// en : UEnumeration* in/out -> Pointer<IntPtr>
// resultLength : 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 uenum_next(
  en: Pointer;   // UEnumeration* in/out
  resultLength: Pointer;   // INT* in/out
  status: Pointer   // UErrorCode* in/out
): PAnsiChar; cdecl;
  external 'icuuc.dll' name 'uenum_next';

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

foreign import ccall safe "uenum_next"
  c_uenum_next :: Ptr CIntPtr -> Ptr Int32 -> Ptr Int32 -> IO CString
-- en : UEnumeration* in/out -> Ptr CIntPtr
-- resultLength : 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 uenum_next =
  foreign "uenum_next"
    ((ptr intptr_t) @-> (ptr int32_t) @-> (ptr int32_t) @-> returning string)
(* en : UEnumeration* in/out -> (ptr intptr_t) *)
(* resultLength : 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 ("uenum_next" uenum-next :convention :cdecl) :string
  (en :pointer)   ; UEnumeration* in/out
  (result-length :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 $uenum_next = Win32::API::More->new('icuuc',
    'LPSTR uenum_next(LPVOID en, LPVOID resultLength, LPVOID status)');
# my $ret = $uenum_next->Call($en, $resultLength, $status);
# en : UEnumeration* in/out -> LPVOID
# resultLength : 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。