unorm2_getDecomposition

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

INT unorm2_getDecomposition(
    const UNormalizer2* norm2,
    INT c,
    WORD* decomposition,
    INT capacity,
    UErrorCode* pErrorCode
);

<DllImport("icuuc.dll", ExactSpelling:=True, CallingConvention:=CallingConvention.Cdecl)>
Public Shared Function unorm2_getDecomposition(
    ByRef norm2 As IntPtr,   ' UNormalizer2*
    c As Integer,   ' INT
    ByRef decomposition As UShort,   ' WORD* in/out
    capacity As Integer,   ' INT
    ByRef pErrorCode As Integer   ' UErrorCode* in/out
) As Integer
End Function

' norm2 : UNormalizer2*
' c : INT
' decomposition : WORD* in/out
' capacity : INT
' pErrorCode : UErrorCode* in/out
Declare PtrSafe Function unorm2_getDecomposition Lib "icuuc" ( _
    ByRef norm2 As LongPtr, _
    ByVal c As Long, _
    ByRef decomposition As Integer, _
    ByVal capacity As Long, _
    ByRef pErrorCode 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

unorm2_getDecomposition = ctypes.cdll.icuuc.unorm2_getDecomposition
unorm2_getDecomposition.restype = ctypes.c_int
unorm2_getDecomposition.argtypes = [
    ctypes.c_void_p,  # norm2 : UNormalizer2*
    ctypes.c_int,  # c : INT
    ctypes.POINTER(ctypes.c_ushort),  # decomposition : WORD* in/out
    ctypes.c_int,  # capacity : INT
    ctypes.c_void_p,  # pErrorCode : UErrorCode* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('icuuc.dll')
unorm2_getDecomposition = Fiddle::Function.new(
  lib['unorm2_getDecomposition'],
  [
    Fiddle::TYPE_VOIDP,  # norm2 : UNormalizer2*
    Fiddle::TYPE_INT,  # c : INT
    Fiddle::TYPE_VOIDP,  # decomposition : WORD* in/out
    Fiddle::TYPE_INT,  # capacity : INT
    Fiddle::TYPE_VOIDP,  # pErrorCode : UErrorCode* in/out
  ],
  Fiddle::TYPE_INT, Fiddle::Function::CDECL)

#[link(name = "icuuc")]
extern "C" {
    fn unorm2_getDecomposition(
        norm2: *const isize,  // UNormalizer2*
        c: i32,  // INT
        decomposition: *mut u16,  // WORD* in/out
        capacity: i32,  // INT
        pErrorCode: *mut i32  // UErrorCode* in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("icuuc.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern int unorm2_getDecomposition(ref IntPtr norm2, int c, ref ushort decomposition, int capacity, ref int pErrorCode);
"@
$api = Add-Type -MemberDefinition $sig -Name 'icuuc_unorm2_getDecomposition' -Namespace Win32 -PassThru
# $api::unorm2_getDecomposition(norm2, c, decomposition, capacity, pErrorCode)

#uselib "icuuc.dll"
#func global unorm2_getDecomposition "unorm2_getDecomposition" sptr, sptr, sptr, sptr, sptr
; unorm2_getDecomposition varptr(norm2), c, varptr(decomposition), capacity, varptr(pErrorCode)   ; 戻り値は stat
; norm2 : UNormalizer2* -> "sptr"
; c : INT -> "sptr"
; decomposition : WORD* in/out -> "sptr"
; capacity : INT -> "sptr"
; pErrorCode : 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")
	procunorm2_getDecomposition = icuuc.NewProc("unorm2_getDecomposition")
)

// norm2 (UNormalizer2*), c (INT), decomposition (WORD* in/out), capacity (INT), pErrorCode (UErrorCode* in/out)
r1, _, err := procunorm2_getDecomposition.Call(
	uintptr(norm2),
	uintptr(c),
	uintptr(decomposition),
	uintptr(capacity),
	uintptr(pErrorCode),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function unorm2_getDecomposition(
  norm2: Pointer;   // UNormalizer2*
  c: Integer;   // INT
  decomposition: Pointer;   // WORD* in/out
  capacity: Integer;   // INT
  pErrorCode: Pointer   // UErrorCode* in/out
): Integer; cdecl;
  external 'icuuc.dll' name 'unorm2_getDecomposition';

result := DllCall("icuuc\unorm2_getDecomposition"
    , "Ptr", norm2   ; UNormalizer2*
    , "Int", c   ; INT
    , "Ptr", decomposition   ; WORD* in/out
    , "Int", capacity   ; INT
    , "Ptr", pErrorCode   ; UErrorCode* in/out
    , "Cdecl Int")   ; return: INT

●unorm2_getDecomposition(norm2, c, decomposition, capacity, pErrorCode) = DLL("icuuc.dll", "int unorm2_getDecomposition(void*, int, void*, int, void*)")
# 呼び出し: unorm2_getDecomposition(norm2, c, decomposition, capacity, pErrorCode)
# norm2 : UNormalizer2* -> "void*"
# c : INT -> "int"
# decomposition : WORD* in/out -> "void*"
# capacity : INT -> "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 unorm2_getDecomposition(
    norm2: [*c]isize, // UNormalizer2*
    c: i32, // INT
    decomposition: [*c]u16, // WORD* in/out
    capacity: i32, // INT
    pErrorCode: [*c]i32 // UErrorCode* in/out
) callconv(.c) i32;

proc unorm2_getDecomposition(
    norm2: ptr int,  # UNormalizer2*
    c: int32,  # INT
    decomposition: ptr uint16,  # WORD* in/out
    capacity: int32,  # INT
    pErrorCode: ptr int32  # UErrorCode* in/out
): int32 {.importc: "unorm2_getDecomposition", cdecl, dynlib: "icuuc.dll".}

pragma(lib, "icuuc");
extern(C)
int unorm2_getDecomposition(
    ptrdiff_t* norm2,   // UNormalizer2*
    int c,   // INT
    ushort* decomposition,   // WORD* in/out
    int capacity,   // INT
    int* pErrorCode   // UErrorCode* in/out
);

ccall((:unorm2_getDecomposition, "icuuc.dll"), Int32,
      (Ptr{Int}, Int32, Ptr{UInt16}, Int32, Ptr{Int32}),
      norm2, c, decomposition, capacity, pErrorCode)
# norm2 : UNormalizer2* -> Ptr{Int}
# c : INT -> Int32
# decomposition : WORD* in/out -> Ptr{UInt16}
# capacity : INT -> Int32
# pErrorCode : UErrorCode* in/out -> Ptr{Int32}

local ffi = require("ffi")
ffi.cdef[[
int32_t unorm2_getDecomposition(
    intptr_t* norm2,
    int32_t c,
    uint16_t* decomposition,
    int32_t capacity,
    int32_t* pErrorCode);
]]
local icuuc = ffi.load("icuuc")
-- icuuc.unorm2_getDecomposition(norm2, c, decomposition, capacity, pErrorCode)
-- norm2 : UNormalizer2*
-- c : INT
-- decomposition : WORD* in/out
-- capacity : INT
-- 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 unorm2_getDecomposition = lib.func('__cdecl', 'unorm2_getDecomposition', 'int32_t', ['intptr_t *', 'int32_t', 'uint16_t *', 'int32_t', 'int32_t *']);
// unorm2_getDecomposition(norm2, c, decomposition, capacity, pErrorCode)
// norm2 : UNormalizer2* -> 'intptr_t *'
// c : INT -> 'int32_t'
// decomposition : WORD* in/out -> 'uint16_t *'
// capacity : INT -> '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。

const lib = Deno.dlopen("icuuc.dll", {
  unorm2_getDecomposition: { parameters: ["pointer", "i32", "pointer", "i32", "pointer"], result: "i32" },
});
// lib.symbols.unorm2_getDecomposition(norm2, c, decomposition, capacity, pErrorCode)
// norm2 : UNormalizer2* -> "pointer"
// c : INT -> "i32"
// decomposition : WORD* in/out -> "pointer"
// capacity : INT -> "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
int32_t unorm2_getDecomposition(
    intptr_t* norm2,
    int32_t c,
    uint16_t* decomposition,
    int32_t capacity,
    int32_t* pErrorCode);
C, "icuuc.dll");
// $ffi->unorm2_getDecomposition(norm2, c, decomposition, capacity, pErrorCode);
// norm2 : UNormalizer2*
// c : INT
// decomposition : WORD* in/out
// capacity : INT
// 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);
    int unorm2_getDecomposition(
        LongByReference norm2,   // UNormalizer2*
        int c,   // INT
        ShortByReference decomposition,   // WORD* in/out
        int capacity,   // INT
        IntByReference pErrorCode   // UErrorCode* in/out
    );
}

@[Link("icuuc")]
lib Libicuuc
  fun unorm2_getDecomposition = unorm2_getDecomposition(
    norm2 : LibC::SSizeT*,   # UNormalizer2*
    c : Int32,   # INT
    decomposition : UInt16*,   # WORD* in/out
    capacity : Int32,   # INT
    pErrorCode : 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 unorm2_getDecompositionNative = Int32 Function(Pointer<IntPtr>, Int32, Pointer<Uint16>, Int32, Pointer<Int32>);
typedef unorm2_getDecompositionDart = int Function(Pointer<IntPtr>, int, Pointer<Uint16>, int, Pointer<Int32>);
final unorm2_getDecomposition = DynamicLibrary.open('icuuc.dll')
    .lookupFunction<unorm2_getDecompositionNative, unorm2_getDecompositionDart>('unorm2_getDecomposition');
// norm2 : UNormalizer2* -> Pointer<IntPtr>
// c : INT -> Int32
// decomposition : WORD* in/out -> Pointer<Uint16>
// capacity : INT -> Int32
// pErrorCode : UErrorCode* in/out -> Pointer<Int32>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function unorm2_getDecomposition(
  norm2: Pointer;   // UNormalizer2*
  c: Integer;   // INT
  decomposition: Pointer;   // WORD* in/out
  capacity: Integer;   // INT
  pErrorCode: Pointer   // UErrorCode* in/out
): Integer; cdecl;
  external 'icuuc.dll' name 'unorm2_getDecomposition';

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

foreign import ccall safe "unorm2_getDecomposition"
  c_unorm2_getDecomposition :: Ptr CIntPtr -> Int32 -> Ptr Word16 -> Int32 -> Ptr Int32 -> IO Int32
-- norm2 : UNormalizer2* -> Ptr CIntPtr
-- c : INT -> Int32
-- decomposition : WORD* in/out -> Ptr Word16
-- capacity : INT -> 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 unorm2_getdecomposition =
  foreign "unorm2_getDecomposition"
    ((ptr intptr_t) @-> int32_t @-> (ptr uint16_t) @-> int32_t @-> (ptr int32_t) @-> returning int32_t)
(* norm2 : UNormalizer2* -> (ptr intptr_t) *)
(* c : INT -> int32_t *)
(* decomposition : WORD* in/out -> (ptr uint16_t) *)
(* capacity : INT -> 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 ("unorm2_getDecomposition" unorm2-get-decomposition :convention :cdecl) :int32
  (norm2 :pointer)   ; UNormalizer2*
  (c :int32)   ; INT
  (decomposition :pointer)   ; WORD* in/out
  (capacity :int32)   ; INT
  (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 $unorm2_getDecomposition = Win32::API::More->new('icuuc',
    'int unorm2_getDecomposition(LPVOID norm2, int c, LPVOID decomposition, int capacity, LPVOID pErrorCode)');
# my $ret = $unorm2_getDecomposition->Call($norm2, $c, $decomposition, $capacity, $pErrorCode);
# norm2 : UNormalizer2* -> LPVOID
# c : INT -> int
# decomposition : WORD* in/out -> LPVOID
# capacity : INT -> 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。