ucsdet_setText

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

void ucsdet_setText(
    UCharsetDetector* ucsd,
    LPCSTR textIn,
    INT len,
    UErrorCode* status
);

<DllImport("icuin.dll", ExactSpelling:=True, CallingConvention:=CallingConvention.Cdecl)>
Public Shared Sub ucsdet_setText(
    ByRef ucsd As IntPtr,   ' UCharsetDetector* in/out
    <MarshalAs(UnmanagedType.LPStr)> textIn As String,   ' LPCSTR
    len As Integer,   ' INT
    ByRef status As Integer   ' UErrorCode* in/out
)
End Sub

' ucsd : UCharsetDetector* in/out
' textIn : LPCSTR
' len : INT
' status : UErrorCode* in/out
Declare PtrSafe Sub ucsdet_setText Lib "icuin" ( _
    ByRef ucsd As LongPtr, _
    ByVal textIn As String, _
    ByVal len As Long, _
    ByRef status As Long)
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

ucsdet_setText = ctypes.cdll.icuin.ucsdet_setText
ucsdet_setText.restype = None
ucsdet_setText.argtypes = [
    ctypes.c_void_p,  # ucsd : UCharsetDetector* in/out
    wintypes.LPCSTR,  # textIn : LPCSTR
    ctypes.c_int,  # len : INT
    ctypes.c_void_p,  # status : UErrorCode* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('icuin.dll')
ucsdet_setText = Fiddle::Function.new(
  lib['ucsdet_setText'],
  [
    Fiddle::TYPE_VOIDP,  # ucsd : UCharsetDetector* in/out
    Fiddle::TYPE_VOIDP,  # textIn : LPCSTR
    Fiddle::TYPE_INT,  # len : INT
    Fiddle::TYPE_VOIDP,  # status : UErrorCode* in/out
  ],
  Fiddle::TYPE_VOID, Fiddle::Function::CDECL)

#[link(name = "icuin")]
extern "C" {
    fn ucsdet_setText(
        ucsd: *mut isize,  // UCharsetDetector* in/out
        textIn: *const u8,  // LPCSTR
        len: i32,  // INT
        status: *mut i32  // UErrorCode* in/out
    );
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("icuin.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern void ucsdet_setText(ref IntPtr ucsd, [MarshalAs(UnmanagedType.LPStr)] string textIn, int len, ref int status);
"@
$api = Add-Type -MemberDefinition $sig -Name 'icuin_ucsdet_setText' -Namespace Win32 -PassThru
# $api::ucsdet_setText(ucsd, textIn, len, status)

#uselib "icuin.dll"
#func global ucsdet_setText "ucsdet_setText" sptr, sptr, sptr, sptr
; ucsdet_setText varptr(ucsd), textIn, len, varptr(status)
; ucsd : UCharsetDetector* in/out -> "sptr"
; textIn : LPCSTR -> "sptr"
; len : INT -> "sptr"
; status : UErrorCode* in/out -> "sptr"

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

var (
	icuin = windows.NewLazySystemDLL("icuin.dll")
	procucsdet_setText = icuin.NewProc("ucsdet_setText")
)

// ucsd (UCharsetDetector* in/out), textIn (LPCSTR), len (INT), status (UErrorCode* in/out)
r1, _, err := procucsdet_setText.Call(
	uintptr(ucsd),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(textIn))),
	uintptr(len),
	uintptr(status),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // void

procedure ucsdet_setText(
  ucsd: Pointer;   // UCharsetDetector* in/out
  textIn: PAnsiChar;   // LPCSTR
  len: Integer;   // INT
  status: Pointer   // UErrorCode* in/out
); cdecl;
  external 'icuin.dll' name 'ucsdet_setText';

result := DllCall("icuin\ucsdet_setText"
    , "Ptr", ucsd   ; UCharsetDetector* in/out
    , "AStr", textIn   ; LPCSTR
    , "Int", len   ; INT
    , "Ptr", status   ; UErrorCode* in/out
    , "Cdecl Int")   ; return: void

●ucsdet_setText(ucsd, textIn, len, status) = DLL("icuin.dll", "int ucsdet_setText(void*, char*, int, void*)")
# 呼び出し: ucsdet_setText(ucsd, textIn, len, status)
# ucsd : UCharsetDetector* in/out -> "void*"
# textIn : LPCSTR -> "char*"
# len : INT -> "int"
# 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 ucsdet_setText(
    ucsd: [*c]isize, // UCharsetDetector* in/out
    textIn: [*c]const u8, // LPCSTR
    len: i32, // INT
    status: [*c]i32 // UErrorCode* in/out
) callconv(.c) void;

proc ucsdet_setText(
    ucsd: ptr int,  # UCharsetDetector* in/out
    textIn: cstring,  # LPCSTR
    len: int32,  # INT
    status: ptr int32  # UErrorCode* in/out
) {.importc: "ucsdet_setText", cdecl, dynlib: "icuin.dll".}

pragma(lib, "icuin");
extern(C)
void ucsdet_setText(
    ptrdiff_t* ucsd,   // UCharsetDetector* in/out
    const(char)* textIn,   // LPCSTR
    int len,   // INT
    int* status   // UErrorCode* in/out
);

ccall((:ucsdet_setText, "icuin.dll"), Cvoid,
      (Ptr{Int}, Cstring, Int32, Ptr{Int32}),
      ucsd, textIn, len, status)
# ucsd : UCharsetDetector* in/out -> Ptr{Int}
# textIn : LPCSTR -> Cstring
# len : INT -> Int32
# status : UErrorCode* in/out -> Ptr{Int32}

local ffi = require("ffi")
ffi.cdef[[
void ucsdet_setText(
    intptr_t* ucsd,
    const char* textIn,
    int32_t len,
    int32_t* status);
]]
local icuin = ffi.load("icuin")
-- icuin.ucsdet_setText(ucsd, textIn, len, status)
-- ucsd : UCharsetDetector* in/out
-- textIn : LPCSTR
-- len : INT
-- 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 ucsdet_setText = lib.func('__cdecl', 'ucsdet_setText', 'void', ['intptr_t *', 'str', 'int32_t', 'int32_t *']);
// ucsdet_setText(ucsd, textIn, len, status)
// ucsd : UCharsetDetector* in/out -> 'intptr_t *'
// textIn : LPCSTR -> 'str'
// len : INT -> 'int32_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", {
  ucsdet_setText: { parameters: ["pointer", "buffer", "i32", "pointer"], result: "void" },
});
// lib.symbols.ucsdet_setText(ucsd, textIn, len, status)
// ucsd : UCharsetDetector* in/out -> "pointer"
// textIn : LPCSTR -> "buffer"
// len : INT -> "i32"
// 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
void ucsdet_setText(
    intptr_t* ucsd,
    const char* textIn,
    int32_t len,
    int32_t* status);
C, "icuin.dll");
// $ffi->ucsdet_setText(ucsd, textIn, len, status);
// ucsd : UCharsetDetector* in/out
// textIn : LPCSTR
// len : INT
// 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);
    void ucsdet_setText(
        LongByReference ucsd,   // UCharsetDetector* in/out
        String textIn,   // LPCSTR
        int len,   // INT
        IntByReference status   // UErrorCode* in/out
    );
}

@[Link("icuin")]
lib Libicuin
  fun ucsdet_setText = ucsdet_setText(
    ucsd : LibC::SSizeT*,   # UCharsetDetector* in/out
    textIn : UInt8*,   # LPCSTR
    len : Int32,   # INT
    status : Int32*   # UErrorCode* in/out
  ) : Void
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 ucsdet_setTextNative = Void Function(Pointer<IntPtr>, Pointer<Utf8>, Int32, Pointer<Int32>);
typedef ucsdet_setTextDart = void Function(Pointer<IntPtr>, Pointer<Utf8>, int, Pointer<Int32>);
final ucsdet_setText = DynamicLibrary.open('icuin.dll')
    .lookupFunction<ucsdet_setTextNative, ucsdet_setTextDart>('ucsdet_setText');
// ucsd : UCharsetDetector* in/out -> Pointer<IntPtr>
// textIn : LPCSTR -> Pointer<Utf8>
// len : INT -> Int32
// status : UErrorCode* in/out -> Pointer<Int32>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
procedure ucsdet_setText(
  ucsd: Pointer;   // UCharsetDetector* in/out
  textIn: PAnsiChar;   // LPCSTR
  len: Integer;   // INT
  status: Pointer   // UErrorCode* in/out
); cdecl;
  external 'icuin.dll' name 'ucsdet_setText';

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

foreign import ccall safe "ucsdet_setText"
  c_ucsdet_setText :: Ptr CIntPtr -> CString -> Int32 -> Ptr Int32 -> IO ()
-- ucsd : UCharsetDetector* in/out -> Ptr CIntPtr
-- textIn : LPCSTR -> CString
-- len : INT -> Int32
-- 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 ucsdet_settext =
  foreign "ucsdet_setText"
    ((ptr intptr_t) @-> string @-> int32_t @-> (ptr int32_t) @-> returning void)
(* ucsd : UCharsetDetector* in/out -> (ptr intptr_t) *)
(* textIn : LPCSTR -> string *)
(* len : INT -> int32_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 ("ucsdet_setText" ucsdet-set-text :convention :cdecl) :void
  (ucsd :pointer)   ; UCharsetDetector* in/out
  (text-in :string)   ; LPCSTR
  (len :int32)   ; INT
  (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 $ucsdet_setText = Win32::API::More->new('icuin',
    'void ucsdet_setText(LPVOID ucsd, LPCSTR textIn, int len, LPVOID status)');
# my $ret = $ucsdet_setText->Call($ucsd, $textIn, $len, $status);
# ucsd : UCharsetDetector* in/out -> LPVOID
# textIn : LPCSTR -> LPCSTR
# len : INT -> int
# 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。