ucol_next

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

INT ucol_next(
    UCollationElements* elems,
    UErrorCode* status
);

<DllImport("icuin.dll", ExactSpelling:=True, CallingConvention:=CallingConvention.Cdecl)>
Public Shared Function ucol_next(
    ByRef elems As IntPtr,   ' UCollationElements* in/out
    ByRef status As Integer   ' UErrorCode* in/out
) As Integer
End Function

' elems : UCollationElements* in/out
' status : UErrorCode* in/out
Declare PtrSafe Function ucol_next Lib "icuin" ( _
    ByRef elems As LongPtr, _
    ByRef status As Long) 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_next = ctypes.cdll.icuin.ucol_next
ucol_next.restype = ctypes.c_int
ucol_next.argtypes = [
    ctypes.c_void_p,  # elems : UCollationElements* in/out
    ctypes.c_void_p,  # status : UErrorCode* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('icuin.dll')
ucol_next = Fiddle::Function.new(
  lib['ucol_next'],
  [
    Fiddle::TYPE_VOIDP,  # elems : UCollationElements* in/out
    Fiddle::TYPE_VOIDP,  # status : UErrorCode* in/out
  ],
  Fiddle::TYPE_INT, Fiddle::Function::CDECL)

#[link(name = "icuin")]
extern "C" {
    fn ucol_next(
        elems: *mut isize,  // UCollationElements* in/out
        status: *mut i32  // UErrorCode* in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

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

#uselib "icuin.dll"
#func global ucol_next "ucol_next" sptr, sptr
; ucol_next varptr(elems), varptr(status)   ; 戻り値は stat
; elems : UCollationElements* 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 (
	icuin = windows.NewLazySystemDLL("icuin.dll")
	procucol_next = icuin.NewProc("ucol_next")
)

// elems (UCollationElements* in/out), status (UErrorCode* in/out)
r1, _, err := procucol_next.Call(
	uintptr(elems),
	uintptr(status),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function ucol_next(
  elems: Pointer;   // UCollationElements* in/out
  status: Pointer   // UErrorCode* in/out
): Integer; cdecl;
  external 'icuin.dll' name 'ucol_next';

result := DllCall("icuin\ucol_next"
    , "Ptr", elems   ; UCollationElements* in/out
    , "Ptr", status   ; UErrorCode* in/out
    , "Cdecl Int")   ; return: INT

●ucol_next(elems, status) = DLL("icuin.dll", "int ucol_next(void*, void*)")
# 呼び出し: ucol_next(elems, status)
# elems : UCollationElements* 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 "icuin" fn ucol_next(
    elems: [*c]isize, // UCollationElements* in/out
    status: [*c]i32 // UErrorCode* in/out
) callconv(.c) i32;

proc ucol_next(
    elems: ptr int,  # UCollationElements* in/out
    status: ptr int32  # UErrorCode* in/out
): int32 {.importc: "ucol_next", cdecl, dynlib: "icuin.dll".}

pragma(lib, "icuin");
extern(C)
int ucol_next(
    ptrdiff_t* elems,   // UCollationElements* in/out
    int* status   // UErrorCode* in/out
);

ccall((:ucol_next, "icuin.dll"), Int32,
      (Ptr{Int}, Ptr{Int32}),
      elems, status)
# elems : UCollationElements* in/out -> Ptr{Int}
# status : UErrorCode* in/out -> Ptr{Int32}

local ffi = require("ffi")
ffi.cdef[[
int32_t ucol_next(
    intptr_t* elems,
    int32_t* status);
]]
local icuin = ffi.load("icuin")
-- icuin.ucol_next(elems, status)
-- elems : UCollationElements* 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('icuin.dll');
const ucol_next = lib.func('__cdecl', 'ucol_next', 'int32_t', ['intptr_t *', 'int32_t *']);
// ucol_next(elems, status)
// elems : UCollationElements* in/out -> 'intptr_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("icuin.dll", {
  ucol_next: { parameters: ["pointer", "pointer"], result: "i32" },
});
// lib.symbols.ucol_next(elems, status)
// elems : UCollationElements* 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
int32_t ucol_next(
    intptr_t* elems,
    int32_t* status);
C, "icuin.dll");
// $ffi->ucol_next(elems, status);
// elems : UCollationElements* 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 Icuin extends Library {
    Icuin INSTANCE = Native.load("icuin", Icuin.class);
    int ucol_next(
        LongByReference elems,   // UCollationElements* in/out
        IntByReference status   // UErrorCode* in/out
    );
}

@[Link("icuin")]
lib Libicuin
  fun ucol_next = ucol_next(
    elems : LibC::SSizeT*,   # UCollationElements* in/out
    status : Int32*   # UErrorCode* in/out
  ) : 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_nextNative = Int32 Function(Pointer<IntPtr>, Pointer<Int32>);
typedef ucol_nextDart = int Function(Pointer<IntPtr>, Pointer<Int32>);
final ucol_next = DynamicLibrary.open('icuin.dll')
    .lookupFunction<ucol_nextNative, ucol_nextDart>('ucol_next');
// elems : UCollationElements* in/out -> Pointer<IntPtr>
// status : UErrorCode* in/out -> Pointer<Int32>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function ucol_next(
  elems: Pointer;   // UCollationElements* in/out
  status: Pointer   // UErrorCode* in/out
): Integer; cdecl;
  external 'icuin.dll' name 'ucol_next';

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

foreign import ccall safe "ucol_next"
  c_ucol_next :: Ptr CIntPtr -> Ptr Int32 -> IO Int32
-- elems : UCollationElements* in/out -> Ptr CIntPtr
-- 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 ucol_next =
  foreign "ucol_next"
    ((ptr intptr_t) @-> (ptr int32_t) @-> returning int32_t)
(* elems : UCollationElements* in/out -> (ptr intptr_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 icuin (t "icuin.dll"))
(cffi:use-foreign-library icuin)

(cffi:defcfun ("ucol_next" ucol-next :convention :cdecl) :int32
  (elems :pointer)   ; UCollationElements* 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 $ucol_next = Win32::API::More->new('icuin',
    'int ucol_next(LPVOID elems, LPVOID status)');
# my $ret = $ucol_next->Call($elems, $status);
# elems : UCollationElements* 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。