ucnv_convert

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

INT ucnv_convert(
    LPCSTR toConverterName,
    LPCSTR fromConverterName,
    LPSTR target,
    INT targetCapacity,
    LPCSTR source,
    INT sourceLength,
    UErrorCode* pErrorCode
);

<DllImport("icuuc.dll", ExactSpelling:=True, CallingConvention:=CallingConvention.Cdecl)>
Public Shared Function ucnv_convert(
    <MarshalAs(UnmanagedType.LPStr)> toConverterName As String,   ' LPCSTR
    <MarshalAs(UnmanagedType.LPStr)> fromConverterName As String,   ' LPCSTR
    <MarshalAs(UnmanagedType.LPStr)> target As String,   ' LPSTR
    targetCapacity As Integer,   ' INT
    <MarshalAs(UnmanagedType.LPStr)> source As String,   ' LPCSTR
    sourceLength As Integer,   ' INT
    ByRef pErrorCode As Integer   ' UErrorCode* in/out
) As Integer
End Function

' toConverterName : LPCSTR
' fromConverterName : LPCSTR
' target : LPSTR
' targetCapacity : INT
' source : LPCSTR
' sourceLength : INT
' pErrorCode : UErrorCode* in/out
Declare PtrSafe Function ucnv_convert Lib "icuuc" ( _
    ByVal toConverterName As String, _
    ByVal fromConverterName As String, _
    ByVal target As String, _
    ByVal targetCapacity As Long, _
    ByVal source As String, _
    ByVal sourceLength 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

ucnv_convert = ctypes.cdll.icuuc.ucnv_convert
ucnv_convert.restype = ctypes.c_int
ucnv_convert.argtypes = [
    wintypes.LPCSTR,  # toConverterName : LPCSTR
    wintypes.LPCSTR,  # fromConverterName : LPCSTR
    wintypes.LPCSTR,  # target : LPSTR
    ctypes.c_int,  # targetCapacity : INT
    wintypes.LPCSTR,  # source : LPCSTR
    ctypes.c_int,  # sourceLength : INT
    ctypes.c_void_p,  # pErrorCode : UErrorCode* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('icuuc.dll')
ucnv_convert = Fiddle::Function.new(
  lib['ucnv_convert'],
  [
    Fiddle::TYPE_VOIDP,  # toConverterName : LPCSTR
    Fiddle::TYPE_VOIDP,  # fromConverterName : LPCSTR
    Fiddle::TYPE_VOIDP,  # target : LPSTR
    Fiddle::TYPE_INT,  # targetCapacity : INT
    Fiddle::TYPE_VOIDP,  # source : LPCSTR
    Fiddle::TYPE_INT,  # sourceLength : INT
    Fiddle::TYPE_VOIDP,  # pErrorCode : UErrorCode* in/out
  ],
  Fiddle::TYPE_INT, Fiddle::Function::CDECL)

#[link(name = "icuuc")]
extern "C" {
    fn ucnv_convert(
        toConverterName: *const u8,  // LPCSTR
        fromConverterName: *const u8,  // LPCSTR
        target: *mut u8,  // LPSTR
        targetCapacity: i32,  // INT
        source: *const u8,  // LPCSTR
        sourceLength: 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 ucnv_convert([MarshalAs(UnmanagedType.LPStr)] string toConverterName, [MarshalAs(UnmanagedType.LPStr)] string fromConverterName, [MarshalAs(UnmanagedType.LPStr)] string target, int targetCapacity, [MarshalAs(UnmanagedType.LPStr)] string source, int sourceLength, ref int pErrorCode);
"@
$api = Add-Type -MemberDefinition $sig -Name 'icuuc_ucnv_convert' -Namespace Win32 -PassThru
# $api::ucnv_convert(toConverterName, fromConverterName, target, targetCapacity, source, sourceLength, pErrorCode)

#uselib "icuuc.dll"
#func global ucnv_convert "ucnv_convert" sptr, sptr, sptr, sptr, sptr, sptr, sptr
; ucnv_convert toConverterName, fromConverterName, target, targetCapacity, source, sourceLength, varptr(pErrorCode)   ; 戻り値は stat
; toConverterName : LPCSTR -> "sptr"
; fromConverterName : LPCSTR -> "sptr"
; target : LPSTR -> "sptr"
; targetCapacity : INT -> "sptr"
; source : LPCSTR -> "sptr"
; sourceLength : 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")
	procucnv_convert = icuuc.NewProc("ucnv_convert")
)

// toConverterName (LPCSTR), fromConverterName (LPCSTR), target (LPSTR), targetCapacity (INT), source (LPCSTR), sourceLength (INT), pErrorCode (UErrorCode* in/out)
r1, _, err := procucnv_convert.Call(
	uintptr(unsafe.Pointer(windows.BytePtrFromString(toConverterName))),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(fromConverterName))),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(target))),
	uintptr(targetCapacity),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(source))),
	uintptr(sourceLength),
	uintptr(pErrorCode),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function ucnv_convert(
  toConverterName: PAnsiChar;   // LPCSTR
  fromConverterName: PAnsiChar;   // LPCSTR
  target: PAnsiChar;   // LPSTR
  targetCapacity: Integer;   // INT
  source: PAnsiChar;   // LPCSTR
  sourceLength: Integer;   // INT
  pErrorCode: Pointer   // UErrorCode* in/out
): Integer; cdecl;
  external 'icuuc.dll' name 'ucnv_convert';

result := DllCall("icuuc\ucnv_convert"
    , "AStr", toConverterName   ; LPCSTR
    , "AStr", fromConverterName   ; LPCSTR
    , "AStr", target   ; LPSTR
    , "Int", targetCapacity   ; INT
    , "AStr", source   ; LPCSTR
    , "Int", sourceLength   ; INT
    , "Ptr", pErrorCode   ; UErrorCode* in/out
    , "Cdecl Int")   ; return: INT

●ucnv_convert(toConverterName, fromConverterName, target, targetCapacity, source, sourceLength, pErrorCode) = DLL("icuuc.dll", "int ucnv_convert(char*, char*, char*, int, char*, int, void*)")
# 呼び出し: ucnv_convert(toConverterName, fromConverterName, target, targetCapacity, source, sourceLength, pErrorCode)
# toConverterName : LPCSTR -> "char*"
# fromConverterName : LPCSTR -> "char*"
# target : LPSTR -> "char*"
# targetCapacity : INT -> "int"
# source : LPCSTR -> "char*"
# sourceLength : 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 ucnv_convert(
    toConverterName: [*c]const u8, // LPCSTR
    fromConverterName: [*c]const u8, // LPCSTR
    target: [*c]const u8, // LPSTR
    targetCapacity: i32, // INT
    source: [*c]const u8, // LPCSTR
    sourceLength: i32, // INT
    pErrorCode: [*c]i32 // UErrorCode* in/out
) callconv(.c) i32;

proc ucnv_convert(
    toConverterName: cstring,  # LPCSTR
    fromConverterName: cstring,  # LPCSTR
    target: cstring,  # LPSTR
    targetCapacity: int32,  # INT
    source: cstring,  # LPCSTR
    sourceLength: int32,  # INT
    pErrorCode: ptr int32  # UErrorCode* in/out
): int32 {.importc: "ucnv_convert", cdecl, dynlib: "icuuc.dll".}

pragma(lib, "icuuc");
extern(C)
int ucnv_convert(
    const(char)* toConverterName,   // LPCSTR
    const(char)* fromConverterName,   // LPCSTR
    const(char)* target,   // LPSTR
    int targetCapacity,   // INT
    const(char)* source,   // LPCSTR
    int sourceLength,   // INT
    int* pErrorCode   // UErrorCode* in/out
);

ccall((:ucnv_convert, "icuuc.dll"), Int32,
      (Cstring, Cstring, Cstring, Int32, Cstring, Int32, Ptr{Int32}),
      toConverterName, fromConverterName, target, targetCapacity, source, sourceLength, pErrorCode)
# toConverterName : LPCSTR -> Cstring
# fromConverterName : LPCSTR -> Cstring
# target : LPSTR -> Cstring
# targetCapacity : INT -> Int32
# source : LPCSTR -> Cstring
# sourceLength : INT -> Int32
# pErrorCode : UErrorCode* in/out -> Ptr{Int32}

local ffi = require("ffi")
ffi.cdef[[
int32_t ucnv_convert(
    const char* toConverterName,
    const char* fromConverterName,
    const char* target,
    int32_t targetCapacity,
    const char* source,
    int32_t sourceLength,
    int32_t* pErrorCode);
]]
local icuuc = ffi.load("icuuc")
-- icuuc.ucnv_convert(toConverterName, fromConverterName, target, targetCapacity, source, sourceLength, pErrorCode)
-- toConverterName : LPCSTR
-- fromConverterName : LPCSTR
-- target : LPSTR
-- targetCapacity : INT
-- source : LPCSTR
-- sourceLength : 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 ucnv_convert = lib.func('__cdecl', 'ucnv_convert', 'int32_t', ['str', 'str', 'str', 'int32_t', 'str', 'int32_t', 'int32_t *']);
// ucnv_convert(toConverterName, fromConverterName, target, targetCapacity, source, sourceLength, pErrorCode)
// toConverterName : LPCSTR -> 'str'
// fromConverterName : LPCSTR -> 'str'
// target : LPSTR -> 'str'
// targetCapacity : INT -> 'int32_t'
// source : LPCSTR -> 'str'
// sourceLength : 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", {
  ucnv_convert: { parameters: ["buffer", "buffer", "buffer", "i32", "buffer", "i32", "pointer"], result: "i32" },
});
// lib.symbols.ucnv_convert(toConverterName, fromConverterName, target, targetCapacity, source, sourceLength, pErrorCode)
// toConverterName : LPCSTR -> "buffer"
// fromConverterName : LPCSTR -> "buffer"
// target : LPSTR -> "buffer"
// targetCapacity : INT -> "i32"
// source : LPCSTR -> "buffer"
// sourceLength : 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 ucnv_convert(
    const char* toConverterName,
    const char* fromConverterName,
    const char* target,
    int32_t targetCapacity,
    const char* source,
    int32_t sourceLength,
    int32_t* pErrorCode);
C, "icuuc.dll");
// $ffi->ucnv_convert(toConverterName, fromConverterName, target, targetCapacity, source, sourceLength, pErrorCode);
// toConverterName : LPCSTR
// fromConverterName : LPCSTR
// target : LPSTR
// targetCapacity : INT
// source : LPCSTR
// sourceLength : 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 ucnv_convert(
        String toConverterName,   // LPCSTR
        String fromConverterName,   // LPCSTR
        String target,   // LPSTR
        int targetCapacity,   // INT
        String source,   // LPCSTR
        int sourceLength,   // INT
        IntByReference pErrorCode   // UErrorCode* in/out
    );
}

@[Link("icuuc")]
lib Libicuuc
  fun ucnv_convert = ucnv_convert(
    toConverterName : UInt8*,   # LPCSTR
    fromConverterName : UInt8*,   # LPCSTR
    target : UInt8*,   # LPSTR
    targetCapacity : Int32,   # INT
    source : UInt8*,   # LPCSTR
    sourceLength : 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 ucnv_convertNative = Int32 Function(Pointer<Utf8>, Pointer<Utf8>, Pointer<Utf8>, Int32, Pointer<Utf8>, Int32, Pointer<Int32>);
typedef ucnv_convertDart = int Function(Pointer<Utf8>, Pointer<Utf8>, Pointer<Utf8>, int, Pointer<Utf8>, int, Pointer<Int32>);
final ucnv_convert = DynamicLibrary.open('icuuc.dll')
    .lookupFunction<ucnv_convertNative, ucnv_convertDart>('ucnv_convert');
// toConverterName : LPCSTR -> Pointer<Utf8>
// fromConverterName : LPCSTR -> Pointer<Utf8>
// target : LPSTR -> Pointer<Utf8>
// targetCapacity : INT -> Int32
// source : LPCSTR -> Pointer<Utf8>
// sourceLength : INT -> Int32
// pErrorCode : UErrorCode* in/out -> Pointer<Int32>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function ucnv_convert(
  toConverterName: PAnsiChar;   // LPCSTR
  fromConverterName: PAnsiChar;   // LPCSTR
  target: PAnsiChar;   // LPSTR
  targetCapacity: Integer;   // INT
  source: PAnsiChar;   // LPCSTR
  sourceLength: Integer;   // INT
  pErrorCode: Pointer   // UErrorCode* in/out
): Integer; cdecl;
  external 'icuuc.dll' name 'ucnv_convert';

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

foreign import ccall safe "ucnv_convert"
  c_ucnv_convert :: CString -> CString -> CString -> Int32 -> CString -> Int32 -> Ptr Int32 -> IO Int32
-- toConverterName : LPCSTR -> CString
-- fromConverterName : LPCSTR -> CString
-- target : LPSTR -> CString
-- targetCapacity : INT -> Int32
-- source : LPCSTR -> CString
-- sourceLength : 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 ucnv_convert =
  foreign "ucnv_convert"
    (string @-> string @-> string @-> int32_t @-> string @-> int32_t @-> (ptr int32_t) @-> returning int32_t)
(* toConverterName : LPCSTR -> string *)
(* fromConverterName : LPCSTR -> string *)
(* target : LPSTR -> string *)
(* targetCapacity : INT -> int32_t *)
(* source : LPCSTR -> string *)
(* sourceLength : 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 ("ucnv_convert" ucnv-convert :convention :cdecl) :int32
  (to-converter-name :string)   ; LPCSTR
  (from-converter-name :string)   ; LPCSTR
  (target :string)   ; LPSTR
  (target-capacity :int32)   ; INT
  (source :string)   ; LPCSTR
  (source-length :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 $ucnv_convert = Win32::API::More->new('icuuc',
    'int ucnv_convert(LPCSTR toConverterName, LPCSTR fromConverterName, LPCSTR target, int targetCapacity, LPCSTR source, int sourceLength, LPVOID pErrorCode)');
# my $ret = $ucnv_convert->Call($toConverterName, $fromConverterName, $target, $targetCapacity, $source, $sourceLength, $pErrorCode);
# toConverterName : LPCSTR -> LPCSTR
# fromConverterName : LPCSTR -> LPCSTR
# target : LPSTR -> LPCSTR
# targetCapacity : INT -> int
# source : LPCSTR -> LPCSTR
# sourceLength : 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。