ucol_keyHashCode

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

INT ucol_keyHashCode(
    const BYTE* key,
    INT length
);

<DllImport("icuin.dll", ExactSpelling:=True, CallingConvention:=CallingConvention.Cdecl)>
Public Shared Function ucol_keyHashCode(
    key As IntPtr,   ' BYTE*
    length As Integer   ' INT
) As Integer
End Function

' key : BYTE*
' length : INT
Declare PtrSafe Function ucol_keyHashCode Lib "icuin" ( _
    ByVal key As LongPtr, _
    ByVal length 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_keyHashCode = ctypes.cdll.icuin.ucol_keyHashCode
ucol_keyHashCode.restype = ctypes.c_int
ucol_keyHashCode.argtypes = [
    ctypes.POINTER(ctypes.c_ubyte),  # key : BYTE*
    ctypes.c_int,  # length : INT
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('icuin.dll')
ucol_keyHashCode = Fiddle::Function.new(
  lib['ucol_keyHashCode'],
  [
    Fiddle::TYPE_VOIDP,  # key : BYTE*
    Fiddle::TYPE_INT,  # length : INT
  ],
  Fiddle::TYPE_INT, Fiddle::Function::CDECL)

#[link(name = "icuin")]
extern "C" {
    fn ucol_keyHashCode(
        key: *const u8,  // BYTE*
        length: i32  // INT
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

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

#uselib "icuin.dll"
#func global ucol_keyHashCode "ucol_keyHashCode" sptr, sptr
; ucol_keyHashCode varptr(key), length   ; 戻り値は stat
; key : BYTE* -> "sptr"
; length : INT -> "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_keyHashCode = icuin.NewProc("ucol_keyHashCode")
)

// key (BYTE*), length (INT)
r1, _, err := procucol_keyHashCode.Call(
	uintptr(key),
	uintptr(length),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function ucol_keyHashCode(
  key: Pointer;   // BYTE*
  length: Integer   // INT
): Integer; cdecl;
  external 'icuin.dll' name 'ucol_keyHashCode';

result := DllCall("icuin\ucol_keyHashCode"
    , "Ptr", key   ; BYTE*
    , "Int", length   ; INT
    , "Cdecl Int")   ; return: INT

●ucol_keyHashCode(key, length) = DLL("icuin.dll", "int ucol_keyHashCode(void*, int)")
# 呼び出し: ucol_keyHashCode(key, length)
# key : BYTE* -> "void*"
# length : INT -> "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 ucol_keyHashCode(
    key: [*c]u8, // BYTE*
    length: i32 // INT
) callconv(.c) i32;

proc ucol_keyHashCode(
    key: ptr uint8,  # BYTE*
    length: int32  # INT
): int32 {.importc: "ucol_keyHashCode", cdecl, dynlib: "icuin.dll".}

pragma(lib, "icuin");
extern(C)
int ucol_keyHashCode(
    ubyte* key,   // BYTE*
    int length   // INT
);

ccall((:ucol_keyHashCode, "icuin.dll"), Int32,
      (Ptr{UInt8}, Int32),
      key, length)
# key : BYTE* -> Ptr{UInt8}
# length : INT -> Int32

local ffi = require("ffi")
ffi.cdef[[
int32_t ucol_keyHashCode(
    uint8_t* key,
    int32_t length);
]]
local icuin = ffi.load("icuin")
-- icuin.ucol_keyHashCode(key, length)
-- key : BYTE*
-- length : INT
-- 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_keyHashCode = lib.func('__cdecl', 'ucol_keyHashCode', 'int32_t', ['uint8_t *', 'int32_t']);
// ucol_keyHashCode(key, length)
// key : BYTE* -> 'uint8_t *'
// length : INT -> '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_keyHashCode: { parameters: ["pointer", "i32"], result: "i32" },
});
// lib.symbols.ucol_keyHashCode(key, length)
// key : BYTE* -> "pointer"
// length : INT -> "i32"
// 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_keyHashCode(
    uint8_t* key,
    int32_t length);
C, "icuin.dll");
// $ffi->ucol_keyHashCode(key, length);
// key : BYTE*
// length : INT
// 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_keyHashCode(
        byte[] key,   // BYTE*
        int length   // INT
    );
}

@[Link("icuin")]
lib Libicuin
  fun ucol_keyHashCode = ucol_keyHashCode(
    key : UInt8*,   # BYTE*
    length : Int32   # INT
  ) : 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_keyHashCodeNative = Int32 Function(Pointer<Uint8>, Int32);
typedef ucol_keyHashCodeDart = int Function(Pointer<Uint8>, int);
final ucol_keyHashCode = DynamicLibrary.open('icuin.dll')
    .lookupFunction<ucol_keyHashCodeNative, ucol_keyHashCodeDart>('ucol_keyHashCode');
// key : BYTE* -> Pointer<Uint8>
// length : INT -> Int32
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function ucol_keyHashCode(
  key: Pointer;   // BYTE*
  length: Integer   // INT
): Integer; cdecl;
  external 'icuin.dll' name 'ucol_keyHashCode';

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

foreign import ccall safe "ucol_keyHashCode"
  c_ucol_keyHashCode :: Ptr Word8 -> Int32 -> IO Int32
-- key : BYTE* -> Ptr Word8
-- length : INT -> 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_keyhashcode =
  foreign "ucol_keyHashCode"
    ((ptr uint8_t) @-> int32_t @-> returning int32_t)
(* key : BYTE* -> (ptr uint8_t) *)
(* length : INT -> 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_keyHashCode" ucol-key-hash-code :convention :cdecl) :int32
  (key :pointer)   ; BYTE*
  (length :int32))   ; INT
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

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