u_enumCharNames

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

void u_enumCharNames(
    INT start,
    INT limit,
    UEnumCharNamesFn* fn,
    void* context,
    UCharNameChoice nameChoice,
    UErrorCode* pErrorCode
);

<DllImport("icuuc.dll", ExactSpelling:=True, CallingConvention:=CallingConvention.Cdecl)>
Public Shared Sub u_enumCharNames(
    start As Integer,   ' INT
    limit As Integer,   ' INT
    fn As IntPtr,   ' UEnumCharNamesFn* in/out
    context As IntPtr,   ' void* in/out
    nameChoice As Integer,   ' UCharNameChoice
    ByRef pErrorCode As Integer   ' UErrorCode* in/out
)
End Sub

' start : INT
' limit : INT
' fn : UEnumCharNamesFn* in/out
' context : void* in/out
' nameChoice : UCharNameChoice
' pErrorCode : UErrorCode* in/out
Declare PtrSafe Sub u_enumCharNames Lib "icuuc" ( _
    ByVal start As Long, _
    ByVal limit As Long, _
    ByVal fn As LongPtr, _
    ByVal context As LongPtr, _
    ByVal nameChoice As Long, _
    ByRef pErrorCode As Long)
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

u_enumCharNames = ctypes.cdll.icuuc.u_enumCharNames
u_enumCharNames.restype = None
u_enumCharNames.argtypes = [
    ctypes.c_int,  # start : INT
    ctypes.c_int,  # limit : INT
    ctypes.c_void_p,  # fn : UEnumCharNamesFn* in/out
    ctypes.POINTER(None),  # context : void* in/out
    ctypes.c_int,  # nameChoice : UCharNameChoice
    ctypes.c_void_p,  # pErrorCode : UErrorCode* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('icuuc.dll')
u_enumCharNames = Fiddle::Function.new(
  lib['u_enumCharNames'],
  [
    Fiddle::TYPE_INT,  # start : INT
    Fiddle::TYPE_INT,  # limit : INT
    Fiddle::TYPE_VOIDP,  # fn : UEnumCharNamesFn* in/out
    Fiddle::TYPE_VOIDP,  # context : void* in/out
    Fiddle::TYPE_INT,  # nameChoice : UCharNameChoice
    Fiddle::TYPE_VOIDP,  # pErrorCode : UErrorCode* in/out
  ],
  Fiddle::TYPE_VOID, Fiddle::Function::CDECL)

#[link(name = "icuuc")]
extern "C" {
    fn u_enumCharNames(
        start: i32,  // INT
        limit: i32,  // INT
        fn: *mut *const core::ffi::c_void,  // UEnumCharNamesFn* in/out
        context: *mut (),  // void* in/out
        nameChoice: i32,  // UCharNameChoice
        pErrorCode: *mut i32  // UErrorCode* in/out
    );
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("icuuc.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern void u_enumCharNames(int start, int limit, IntPtr fn, IntPtr context, int nameChoice, ref int pErrorCode);
"@
$api = Add-Type -MemberDefinition $sig -Name 'icuuc_u_enumCharNames' -Namespace Win32 -PassThru
# $api::u_enumCharNames(start, limit, fn, context, nameChoice, pErrorCode)

#uselib "icuuc.dll"
#func global u_enumCharNames "u_enumCharNames" sptr, sptr, sptr, sptr, sptr, sptr
; u_enumCharNames start, limit, fn, context, nameChoice, varptr(pErrorCode)
; start : INT -> "sptr"
; limit : INT -> "sptr"
; fn : UEnumCharNamesFn* in/out -> "sptr"
; context : void* in/out -> "sptr"
; nameChoice : UCharNameChoice -> "sptr"
; pErrorCode : UErrorCode* in/out -> "sptr"

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

var (
	icuuc = windows.NewLazySystemDLL("icuuc.dll")
	procu_enumCharNames = icuuc.NewProc("u_enumCharNames")
)

// start (INT), limit (INT), fn (UEnumCharNamesFn* in/out), context (void* in/out), nameChoice (UCharNameChoice), pErrorCode (UErrorCode* in/out)
r1, _, err := procu_enumCharNames.Call(
	uintptr(start),
	uintptr(limit),
	uintptr(fn),
	uintptr(context),
	uintptr(nameChoice),
	uintptr(pErrorCode),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // void

procedure u_enumCharNames(
  start: Integer;   // INT
  limit: Integer;   // INT
  fn: Pointer;   // UEnumCharNamesFn* in/out
  context: Pointer;   // void* in/out
  nameChoice: Integer;   // UCharNameChoice
  pErrorCode: Pointer   // UErrorCode* in/out
); cdecl;
  external 'icuuc.dll' name 'u_enumCharNames';

result := DllCall("icuuc\u_enumCharNames"
    , "Int", start   ; INT
    , "Int", limit   ; INT
    , "Ptr", fn   ; UEnumCharNamesFn* in/out
    , "Ptr", context   ; void* in/out
    , "Int", nameChoice   ; UCharNameChoice
    , "Ptr", pErrorCode   ; UErrorCode* in/out
    , "Cdecl Int")   ; return: void

●u_enumCharNames(start, limit, fn, context, nameChoice, pErrorCode) = DLL("icuuc.dll", "int u_enumCharNames(int, int, void*, void*, int, void*)")
# 呼び出し: u_enumCharNames(start, limit, fn, context, nameChoice, pErrorCode)
# start : INT -> "int"
# limit : INT -> "int"
# fn : UEnumCharNamesFn* in/out -> "void*"
# context : void* in/out -> "void*"
# nameChoice : UCharNameChoice -> "int"
# pErrorCode : 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 u_enumCharNames(
    start: i32, // INT
    limit: i32, // INT
    fn: ?*anyopaque, // UEnumCharNamesFn* in/out
    context: ?*anyopaque, // void* in/out
    nameChoice: i32, // UCharNameChoice
    pErrorCode: [*c]i32 // UErrorCode* in/out
) callconv(.c) void;

proc u_enumCharNames(
    start: int32,  # INT
    limit: int32,  # INT
    fn: pointer,  # UEnumCharNamesFn* in/out
    context: pointer,  # void* in/out
    nameChoice: int32,  # UCharNameChoice
    pErrorCode: ptr int32  # UErrorCode* in/out
) {.importc: "u_enumCharNames", cdecl, dynlib: "icuuc.dll".}

pragma(lib, "icuuc");
extern(C)
void u_enumCharNames(
    int start,   // INT
    int limit,   // INT
    void* fn,   // UEnumCharNamesFn* in/out
    void* context,   // void* in/out
    int nameChoice,   // UCharNameChoice
    int* pErrorCode   // UErrorCode* in/out
);

ccall((:u_enumCharNames, "icuuc.dll"), Cvoid,
      (Int32, Int32, Ptr{Cvoid}, Ptr{Cvoid}, Int32, Ptr{Int32}),
      start, limit, fn, context, nameChoice, pErrorCode)
# start : INT -> Int32
# limit : INT -> Int32
# fn : UEnumCharNamesFn* in/out -> Ptr{Cvoid}
# context : void* in/out -> Ptr{Cvoid}
# nameChoice : UCharNameChoice -> Int32
# pErrorCode : UErrorCode* in/out -> Ptr{Int32}

local ffi = require("ffi")
ffi.cdef[[
void u_enumCharNames(
    int32_t start,
    int32_t limit,
    void* fn,
    void* context,
    int32_t nameChoice,
    int32_t* pErrorCode);
]]
local icuuc = ffi.load("icuuc")
-- icuuc.u_enumCharNames(start, limit, fn, context, nameChoice, pErrorCode)
-- start : INT
-- limit : INT
-- fn : UEnumCharNamesFn* in/out
-- context : void* in/out
-- nameChoice : UCharNameChoice
-- pErrorCode : 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 u_enumCharNames = lib.func('__cdecl', 'u_enumCharNames', 'void', ['int32_t', 'int32_t', 'void *', 'void *', 'int32_t', 'int32_t *']);
// u_enumCharNames(start, limit, fn, context, nameChoice, pErrorCode)
// start : INT -> 'int32_t'
// limit : INT -> 'int32_t'
// fn : UEnumCharNamesFn* in/out -> 'void *'
// context : void* in/out -> 'void *'
// nameChoice : UCharNameChoice -> 'int32_t'
// pErrorCode : 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。
// コールバック(関数ポインタ)は koffi.proto/koffi.register で型を定義して渡す(素の void* では JS 関数を渡せない)。

const lib = Deno.dlopen("icuuc.dll", {
  u_enumCharNames: { parameters: ["i32", "i32", "pointer", "pointer", "i32", "pointer"], result: "void" },
});
// lib.symbols.u_enumCharNames(start, limit, fn, context, nameChoice, pErrorCode)
// start : INT -> "i32"
// limit : INT -> "i32"
// fn : UEnumCharNamesFn* in/out -> "pointer"
// context : void* in/out -> "pointer"
// nameChoice : UCharNameChoice -> "i32"
// pErrorCode : 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
void u_enumCharNames(
    int32_t start,
    int32_t limit,
    void* fn,
    void* context,
    int32_t nameChoice,
    int32_t* pErrorCode);
C, "icuuc.dll");
// $ffi->u_enumCharNames(start, limit, fn, context, nameChoice, pErrorCode);
// start : INT
// limit : INT
// fn : UEnumCharNamesFn* in/out
// context : void* in/out
// nameChoice : UCharNameChoice
// pErrorCode : 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);
    void u_enumCharNames(
        int start,   // INT
        int limit,   // INT
        Callback fn,   // UEnumCharNamesFn* in/out
        Pointer context,   // void* in/out
        int nameChoice,   // UCharNameChoice
        IntByReference pErrorCode   // UErrorCode* in/out
    );
}

@[Link("icuuc")]
lib Libicuuc
  fun u_enumCharNames = u_enumCharNames(
    start : Int32,   # INT
    limit : Int32,   # INT
    fn : Void*,   # UEnumCharNamesFn* in/out
    context : Void*,   # void* in/out
    nameChoice : Int32,   # UCharNameChoice
    pErrorCode : Int32*   # UErrorCode* in/out
  ) : Void
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 u_enumCharNamesNative = Void Function(Int32, Int32, Pointer<Void>, Pointer<Void>, Int32, Pointer<Int32>);
typedef u_enumCharNamesDart = void Function(int, int, Pointer<Void>, Pointer<Void>, int, Pointer<Int32>);
final u_enumCharNames = DynamicLibrary.open('icuuc.dll')
    .lookupFunction<u_enumCharNamesNative, u_enumCharNamesDart>('u_enumCharNames');
// start : INT -> Int32
// limit : INT -> Int32
// fn : UEnumCharNamesFn* in/out -> Pointer<Void>
// context : void* in/out -> Pointer<Void>
// nameChoice : UCharNameChoice -> Int32
// pErrorCode : UErrorCode* in/out -> Pointer<Int32>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
procedure u_enumCharNames(
  start: Integer;   // INT
  limit: Integer;   // INT
  fn: Pointer;   // UEnumCharNamesFn* in/out
  context: Pointer;   // void* in/out
  nameChoice: Integer;   // UCharNameChoice
  pErrorCode: Pointer   // UErrorCode* in/out
); cdecl;
  external 'icuuc.dll' name 'u_enumCharNames';

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

foreign import ccall safe "u_enumCharNames"
  c_u_enumCharNames :: Int32 -> Int32 -> Ptr () -> Ptr () -> Int32 -> Ptr Int32 -> IO ()
-- start : INT -> Int32
-- limit : INT -> Int32
-- fn : UEnumCharNamesFn* in/out -> Ptr ()
-- context : void* in/out -> Ptr ()
-- nameChoice : UCharNameChoice -> Int32
-- pErrorCode : 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 u_enumcharnames =
  foreign "u_enumCharNames"
    (int32_t @-> int32_t @-> (ptr void) @-> (ptr void) @-> int32_t @-> (ptr int32_t) @-> returning void)
(* start : INT -> int32_t *)
(* limit : INT -> int32_t *)
(* fn : UEnumCharNamesFn* in/out -> (ptr void) *)
(* context : void* in/out -> (ptr void) *)
(* nameChoice : UCharNameChoice -> int32_t *)
(* pErrorCode : 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 ("u_enumCharNames" u-enum-char-names :convention :cdecl) :void
  (start :int32)   ; INT
  (limit :int32)   ; INT
  (fn :pointer)   ; UEnumCharNamesFn* in/out
  (context :pointer)   ; void* in/out
  (name-choice :int32)   ; UCharNameChoice
  (p-error-code :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 $u_enumCharNames = Win32::API::More->new('icuuc',
    'void u_enumCharNames(int start, int limit, LPVOID fn, LPVOID context, int nameChoice, LPVOID pErrorCode)');
# my $ret = $u_enumCharNames->Call($start, $limit, $fn, $context, $nameChoice, $pErrorCode);
# start : INT -> int
# limit : INT -> int
# fn : UEnumCharNamesFn* in/out -> LPVOID
# context : void* in/out -> LPVOID
# nameChoice : UCharNameChoice -> int
# pErrorCode : 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。
# コールバック(関数ポインタ)は Perl sub を直接渡せません。Win32::API::Callback を使用してください。