udat_getNumberFormatForField

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

void** udat_getNumberFormatForField(
    const void** fmt,
    WORD field
);

<DllImport("icuin.dll", ExactSpelling:=True, CallingConvention:=CallingConvention.Cdecl)>
Public Shared Function udat_getNumberFormatForField(
    fmt As IntPtr,   ' void**
    field As UShort   ' WORD
) As IntPtr
End Function

' fmt : void**
' field : WORD
Declare PtrSafe Function udat_getNumberFormatForField Lib "icuin" ( _
    ByVal fmt As LongPtr, _
    ByVal field As Integer) As LongPtr
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

udat_getNumberFormatForField = ctypes.cdll.icuin.udat_getNumberFormatForField
udat_getNumberFormatForField.restype = ctypes.c_void_p
udat_getNumberFormatForField.argtypes = [
    ctypes.c_void_p,  # fmt : void**
    ctypes.c_ushort,  # field : WORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('icuin.dll')
udat_getNumberFormatForField = Fiddle::Function.new(
  lib['udat_getNumberFormatForField'],
  [
    Fiddle::TYPE_VOIDP,  # fmt : void**
    -Fiddle::TYPE_SHORT,  # field : WORD
  ],
  Fiddle::TYPE_VOIDP, Fiddle::Function::CDECL)

#[link(name = "icuin")]
extern "C" {
    fn udat_getNumberFormatForField(
        fmt: *const *const (),  // void**
        field: u16  // WORD
    ) -> *mut *mut ();
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("icuin.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern IntPtr udat_getNumberFormatForField(IntPtr fmt, ushort field);
"@
$api = Add-Type -MemberDefinition $sig -Name 'icuin_udat_getNumberFormatForField' -Namespace Win32 -PassThru
# $api::udat_getNumberFormatForField(fmt, field)

#uselib "icuin.dll"
#func global udat_getNumberFormatForField "udat_getNumberFormatForField" sptr, sptr
; udat_getNumberFormatForField fmt, field   ; 戻り値は stat
; fmt : void** -> "sptr"
; field : WORD -> "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 "icuin.dll"
#cfunc global udat_getNumberFormatForField "udat_getNumberFormatForField" sptr, int
; res = udat_getNumberFormatForField(fmt, field)
; fmt : void** -> "sptr"
; field : WORD -> "int"

; void** udat_getNumberFormatForField(void** fmt, WORD field)
#uselib "icuin.dll"
#cfunc global udat_getNumberFormatForField "udat_getNumberFormatForField" intptr, int
; res = udat_getNumberFormatForField(fmt, field)
; fmt : void** -> "intptr"
; field : WORD -> "int"

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

var (
	icuin = windows.NewLazySystemDLL("icuin.dll")
	procudat_getNumberFormatForField = icuin.NewProc("udat_getNumberFormatForField")
)

// fmt (void**), field (WORD)
r1, _, err := procudat_getNumberFormatForField.Call(
	uintptr(fmt),
	uintptr(field),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // void**

function udat_getNumberFormatForField(
  fmt: Pointer;   // void**
  field: Word   // WORD
): Pointer; cdecl;
  external 'icuin.dll' name 'udat_getNumberFormatForField';

result := DllCall("icuin\udat_getNumberFormatForField"
    , "Ptr", fmt   ; void**
    , "UShort", field   ; WORD
    , "Cdecl Ptr")   ; return: void**

●udat_getNumberFormatForField(fmt, field) = DLL("icuin.dll", "void* udat_getNumberFormatForField(void*, int)")
# 呼び出し: udat_getNumberFormatForField(fmt, field)
# fmt : void** -> "void*"
# field : WORD -> "int"
# 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 udat_getNumberFormatForField(
    fmt: ?*anyopaque, // void**
    field: u16 // WORD
) callconv(.c) ?*anyopaque;

proc udat_getNumberFormatForField(
    fmt: pointer,  # void**
    field: uint16  # WORD
): pointer {.importc: "udat_getNumberFormatForField", cdecl, dynlib: "icuin.dll".}

pragma(lib, "icuin");
extern(C)
void** udat_getNumberFormatForField(
    void** fmt,   // void**
    ushort field   // WORD
);

ccall((:udat_getNumberFormatForField, "icuin.dll"), Ptr{Cvoid},
      (Ptr{Cvoid}, UInt16),
      fmt, field)
# fmt : void** -> Ptr{Cvoid}
# field : WORD -> UInt16

local ffi = require("ffi")
ffi.cdef[[
void** udat_getNumberFormatForField(
    void** fmt,
    uint16_t field);
]]
local icuin = ffi.load("icuin")
-- icuin.udat_getNumberFormatForField(fmt, field)
-- fmt : void**
-- field : WORD
-- 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 udat_getNumberFormatForField = lib.func('__cdecl', 'udat_getNumberFormatForField', 'void *', ['void *', 'uint16_t']);
// udat_getNumberFormatForField(fmt, field)
// fmt : void** -> 'void *'
// field : WORD -> 'uint16_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", {
  udat_getNumberFormatForField: { parameters: ["pointer", "u16"], result: "pointer" },
});
// lib.symbols.udat_getNumberFormatForField(fmt, field)
// fmt : void** -> "pointer"
// field : WORD -> "u16"
// 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** udat_getNumberFormatForField(
    void** fmt,
    uint16_t field);
C, "icuin.dll");
// $ffi->udat_getNumberFormatForField(fmt, field);
// fmt : void**
// field : WORD
// 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 udat_getNumberFormatForField(
        Pointer fmt,   // void**
        short field   // WORD
    );
}

@[Link("icuin")]
lib Libicuin
  fun udat_getNumberFormatForField = udat_getNumberFormatForField(
    fmt : Void**,   # void**
    field : UInt16   # WORD
  ) : 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 udat_getNumberFormatForFieldNative = Pointer<Void> Function(Pointer<Void>, Uint16);
typedef udat_getNumberFormatForFieldDart = Pointer<Void> Function(Pointer<Void>, int);
final udat_getNumberFormatForField = DynamicLibrary.open('icuin.dll')
    .lookupFunction<udat_getNumberFormatForFieldNative, udat_getNumberFormatForFieldDart>('udat_getNumberFormatForField');
// fmt : void** -> Pointer<Void>
// field : WORD -> Uint16
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function udat_getNumberFormatForField(
  fmt: Pointer;   // void**
  field: Word   // WORD
): Pointer; cdecl;
  external 'icuin.dll' name 'udat_getNumberFormatForField';

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

foreign import ccall safe "udat_getNumberFormatForField"
  c_udat_getNumberFormatForField :: Ptr () -> Word16 -> IO (Ptr ())
-- fmt : void** -> Ptr ()
-- field : WORD -> Word16
-- 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 udat_getnumberformatforfield =
  foreign "udat_getNumberFormatForField"
    ((ptr void) @-> uint16_t @-> returning (ptr void))
(* fmt : void** -> (ptr void) *)
(* field : WORD -> uint16_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 ("udat_getNumberFormatForField" udat-get-number-format-for-field :convention :cdecl) :pointer
  (fmt :pointer)   ; void**
  (field :uint16))   ; WORD
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $udat_getNumberFormatForField = Win32::API::More->new('icuin',
    'LPVOID udat_getNumberFormatForField(LPVOID fmt, WORD field)');
# my $ret = $udat_getNumberFormatForField->Call($fmt, $field);
# fmt : void** -> LPVOID
# field : WORD -> WORD
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。