ucol_countAvailable

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

INT ucol_countAvailable(void);

<DllImport("icuin.dll", ExactSpelling:=True, CallingConvention:=CallingConvention.Cdecl)>
Public Shared Function ucol_countAvailable() As Integer
End Function

Declare PtrSafe Function ucol_countAvailable Lib "icuin" () As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

ucol_countAvailable = ctypes.cdll.icuin.ucol_countAvailable
ucol_countAvailable.restype = ctypes.c_int
ucol_countAvailable.argtypes = []

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('icuin.dll')
ucol_countAvailable = Fiddle::Function.new(
  lib['ucol_countAvailable'],
  [],
  Fiddle::TYPE_INT, Fiddle::Function::CDECL)

#[link(name = "icuin")]
extern "C" {
    fn ucol_countAvailable() -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("icuin.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern int ucol_countAvailable();
"@
$api = Add-Type -MemberDefinition $sig -Name 'icuin_ucol_countAvailable' -Namespace Win32 -PassThru
# $api::ucol_countAvailable()

#uselib "icuin.dll"
#func global ucol_countAvailable "ucol_countAvailable"
; ucol_countAvailable   ; 戻り値は stat
; ※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 ucol_countAvailable "ucol_countAvailable"
; res = ucol_countAvailable()

; INT ucol_countAvailable()
#uselib "icuin.dll"
#cfunc global ucol_countAvailable "ucol_countAvailable"
; res = ucol_countAvailable()

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

var (
	icuin = windows.NewLazySystemDLL("icuin.dll")
	procucol_countAvailable = icuin.NewProc("ucol_countAvailable")
)

r1, _, err := procucol_countAvailable.Call()
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function ucol_countAvailable: Integer; cdecl;
  external 'icuin.dll' name 'ucol_countAvailable';

result := DllCall("icuin\ucol_countAvailable", "Cdecl Int")

●ucol_countAvailable() = DLL("icuin.dll", "int ucol_countAvailable()")
# 呼び出し: ucol_countAvailable()
# 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 ucol_countAvailable() callconv(.c) i32;

proc ucol_countAvailable(): int32 {.importc: "ucol_countAvailable", cdecl, dynlib: "icuin.dll".}

pragma(lib, "icuin");
extern(C)
int ucol_countAvailable();

ccall((:ucol_countAvailable, "icuin.dll"), Int32,
      (),
      )

local ffi = require("ffi")
ffi.cdef[[
int32_t ucol_countAvailable(void);
]]
local icuin = ffi.load("icuin")
-- icuin.ucol_countAvailable()
-- 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 ucol_countAvailable = lib.func('__cdecl', 'ucol_countAvailable', 'int32_t', []);
// ucol_countAvailable()
// 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", {
  ucol_countAvailable: { parameters: [], result: "i32" },
});
// lib.symbols.ucol_countAvailable()
// 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
int32_t ucol_countAvailable(void);
C, "icuin.dll");
// $ffi->ucol_countAvailable();
// 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);
    int ucol_countAvailable();
}

@[Link("icuin")]
lib Libicuin
  fun ucol_countAvailable = ucol_countAvailable() : Int32
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 ucol_countAvailableNative = Int32 Function();
typedef ucol_countAvailableDart = int Function();
final ucol_countAvailable = DynamicLibrary.open('icuin.dll')
    .lookupFunction<ucol_countAvailableNative, ucol_countAvailableDart>('ucol_countAvailable');
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function ucol_countAvailable: Integer; cdecl;
  external 'icuin.dll' name 'ucol_countAvailable';

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

foreign import ccall safe "ucol_countAvailable"
  c_ucol_countAvailable :: IO 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 ucol_countavailable =
  foreign "ucol_countAvailable"
    (void @-> returning 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 icuin (t "icuin.dll"))
(cffi:use-foreign-library icuin)

(cffi:defcfun ("ucol_countAvailable" ucol-count-available :convention :cdecl) :int32)
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

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