ucnv_setSubstString

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

void ucnv_setSubstString(
    UConverter* cnv,
    const WORD* s,
    INT length,
    UErrorCode* err
);

<DllImport("icuuc.dll", ExactSpelling:=True, CallingConvention:=CallingConvention.Cdecl)>
Public Shared Sub ucnv_setSubstString(
    ByRef cnv As IntPtr,   ' UConverter* in/out
    ByRef s As UShort,   ' WORD*
    length As Integer,   ' INT
    ByRef err As Integer   ' UErrorCode* in/out
)
End Sub

' cnv : UConverter* in/out
' s : WORD*
' length : INT
' err : UErrorCode* in/out
Declare PtrSafe Sub ucnv_setSubstString Lib "icuuc" ( _
    ByRef cnv As LongPtr, _
    ByRef s As Integer, _
    ByVal length As Long, _
    ByRef err 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_setSubstString = ctypes.cdll.icuuc.ucnv_setSubstString
ucnv_setSubstString.restype = None
ucnv_setSubstString.argtypes = [
    ctypes.c_void_p,  # cnv : UConverter* in/out
    ctypes.POINTER(ctypes.c_ushort),  # s : WORD*
    ctypes.c_int,  # length : INT
    ctypes.c_void_p,  # err : UErrorCode* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('icuuc.dll')
ucnv_setSubstString = Fiddle::Function.new(
  lib['ucnv_setSubstString'],
  [
    Fiddle::TYPE_VOIDP,  # cnv : UConverter* in/out
    Fiddle::TYPE_VOIDP,  # s : WORD*
    Fiddle::TYPE_INT,  # length : INT
    Fiddle::TYPE_VOIDP,  # err : UErrorCode* in/out
  ],
  Fiddle::TYPE_VOID, Fiddle::Function::CDECL)

#[link(name = "icuuc")]
extern "C" {
    fn ucnv_setSubstString(
        cnv: *mut isize,  // UConverter* in/out
        s: *const u16,  // WORD*
        length: i32,  // INT
        err: *mut i32  // UErrorCode* in/out
    );
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("icuuc.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern void ucnv_setSubstString(ref IntPtr cnv, ref ushort s, int length, ref int err);
"@
$api = Add-Type -MemberDefinition $sig -Name 'icuuc_ucnv_setSubstString' -Namespace Win32 -PassThru
# $api::ucnv_setSubstString(cnv, s, length, err)

#uselib "icuuc.dll"
#func global ucnv_setSubstString "ucnv_setSubstString" sptr, sptr, sptr, sptr
; ucnv_setSubstString varptr(cnv), varptr(s), length, varptr(err)
; cnv : UConverter* in/out -> "sptr"
; s : WORD* -> "sptr"
; length : INT -> "sptr"
; err : UErrorCode* in/out -> "sptr"

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

var (
	icuuc = windows.NewLazySystemDLL("icuuc.dll")
	procucnv_setSubstString = icuuc.NewProc("ucnv_setSubstString")
)

// cnv (UConverter* in/out), s (WORD*), length (INT), err (UErrorCode* in/out)
r1, _, err := procucnv_setSubstString.Call(
	uintptr(cnv),
	uintptr(s),
	uintptr(length),
	uintptr(err),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // void

procedure ucnv_setSubstString(
  cnv: Pointer;   // UConverter* in/out
  s: Pointer;   // WORD*
  length: Integer;   // INT
  err: Pointer   // UErrorCode* in/out
); cdecl;
  external 'icuuc.dll' name 'ucnv_setSubstString';

result := DllCall("icuuc\ucnv_setSubstString"
    , "Ptr", cnv   ; UConverter* in/out
    , "Ptr", s   ; WORD*
    , "Int", length   ; INT
    , "Ptr", err   ; UErrorCode* in/out
    , "Cdecl Int")   ; return: void

●ucnv_setSubstString(cnv, s, length, err) = DLL("icuuc.dll", "int ucnv_setSubstString(void*, void*, int, void*)")
# 呼び出し: ucnv_setSubstString(cnv, s, length, err)
# cnv : UConverter* in/out -> "void*"
# s : WORD* -> "void*"
# length : INT -> "int"
# err : 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_setSubstString(
    cnv: [*c]isize, // UConverter* in/out
    s: [*c]u16, // WORD*
    length: i32, // INT
    err: [*c]i32 // UErrorCode* in/out
) callconv(.c) void;

proc ucnv_setSubstString(
    cnv: ptr int,  # UConverter* in/out
    s: ptr uint16,  # WORD*
    length: int32,  # INT
    err: ptr int32  # UErrorCode* in/out
) {.importc: "ucnv_setSubstString", cdecl, dynlib: "icuuc.dll".}

pragma(lib, "icuuc");
extern(C)
void ucnv_setSubstString(
    ptrdiff_t* cnv,   // UConverter* in/out
    ushort* s,   // WORD*
    int length,   // INT
    int* err   // UErrorCode* in/out
);

ccall((:ucnv_setSubstString, "icuuc.dll"), Cvoid,
      (Ptr{Int}, Ptr{UInt16}, Int32, Ptr{Int32}),
      cnv, s, length, err)
# cnv : UConverter* in/out -> Ptr{Int}
# s : WORD* -> Ptr{UInt16}
# length : INT -> Int32
# err : UErrorCode* in/out -> Ptr{Int32}

local ffi = require("ffi")
ffi.cdef[[
void ucnv_setSubstString(
    intptr_t* cnv,
    uint16_t* s,
    int32_t length,
    int32_t* err);
]]
local icuuc = ffi.load("icuuc")
-- icuuc.ucnv_setSubstString(cnv, s, length, err)
-- cnv : UConverter* in/out
-- s : WORD*
-- length : INT
-- err : 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_setSubstString = lib.func('__cdecl', 'ucnv_setSubstString', 'void', ['intptr_t *', 'uint16_t *', 'int32_t', 'int32_t *']);
// ucnv_setSubstString(cnv, s, length, err)
// cnv : UConverter* in/out -> 'intptr_t *'
// s : WORD* -> 'uint16_t *'
// length : INT -> 'int32_t'
// err : 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_setSubstString: { parameters: ["pointer", "pointer", "i32", "pointer"], result: "void" },
});
// lib.symbols.ucnv_setSubstString(cnv, s, length, err)
// cnv : UConverter* in/out -> "pointer"
// s : WORD* -> "pointer"
// length : INT -> "i32"
// err : 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 ucnv_setSubstString(
    intptr_t* cnv,
    uint16_t* s,
    int32_t length,
    int32_t* err);
C, "icuuc.dll");
// $ffi->ucnv_setSubstString(cnv, s, length, err);
// cnv : UConverter* in/out
// s : WORD*
// length : INT
// err : 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);
    void ucnv_setSubstString(
        LongByReference cnv,   // UConverter* in/out
        ShortByReference s,   // WORD*
        int length,   // INT
        IntByReference err   // UErrorCode* in/out
    );
}

@[Link("icuuc")]
lib Libicuuc
  fun ucnv_setSubstString = ucnv_setSubstString(
    cnv : LibC::SSizeT*,   # UConverter* in/out
    s : UInt16*,   # WORD*
    length : Int32,   # INT
    err : 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 ucnv_setSubstStringNative = Void Function(Pointer<IntPtr>, Pointer<Uint16>, Int32, Pointer<Int32>);
typedef ucnv_setSubstStringDart = void Function(Pointer<IntPtr>, Pointer<Uint16>, int, Pointer<Int32>);
final ucnv_setSubstString = DynamicLibrary.open('icuuc.dll')
    .lookupFunction<ucnv_setSubstStringNative, ucnv_setSubstStringDart>('ucnv_setSubstString');
// cnv : UConverter* in/out -> Pointer<IntPtr>
// s : WORD* -> Pointer<Uint16>
// length : INT -> Int32
// err : UErrorCode* in/out -> Pointer<Int32>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
procedure ucnv_setSubstString(
  cnv: Pointer;   // UConverter* in/out
  s: Pointer;   // WORD*
  length: Integer;   // INT
  err: Pointer   // UErrorCode* in/out
); cdecl;
  external 'icuuc.dll' name 'ucnv_setSubstString';

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

foreign import ccall safe "ucnv_setSubstString"
  c_ucnv_setSubstString :: Ptr CIntPtr -> Ptr Word16 -> Int32 -> Ptr Int32 -> IO ()
-- cnv : UConverter* in/out -> Ptr CIntPtr
-- s : WORD* -> Ptr Word16
-- length : INT -> Int32
-- err : 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_setsubststring =
  foreign "ucnv_setSubstString"
    ((ptr intptr_t) @-> (ptr uint16_t) @-> int32_t @-> (ptr int32_t) @-> returning void)
(* cnv : UConverter* in/out -> (ptr intptr_t) *)
(* s : WORD* -> (ptr uint16_t) *)
(* length : INT -> int32_t *)
(* err : 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_setSubstString" ucnv-set-subst-string :convention :cdecl) :void
  (cnv :pointer)   ; UConverter* in/out
  (s :pointer)   ; WORD*
  (length :int32)   ; INT
  (err :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_setSubstString = Win32::API::More->new('icuuc',
    'void ucnv_setSubstString(LPVOID cnv, LPVOID s, int length, LPVOID err)');
# my $ret = $ucnv_setSubstString->Call($cnv, $s, $length, $err);
# cnv : UConverter* in/out -> LPVOID
# s : WORD* -> LPVOID
# length : INT -> int
# err : 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。