ucasemap_getLocale

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

LPSTR ucasemap_getLocale(
    const UCaseMap* csm
);

<DllImport("icuuc.dll", ExactSpelling:=True, CallingConvention:=CallingConvention.Cdecl)>
Public Shared Function ucasemap_getLocale(
    ByRef csm As IntPtr   ' UCaseMap*
) As IntPtr
End Function

' csm : UCaseMap*
Declare PtrSafe Function ucasemap_getLocale Lib "icuuc" ( _
    ByRef csm As LongPtr) As LongPtr
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

ucasemap_getLocale = ctypes.cdll.icuuc.ucasemap_getLocale
ucasemap_getLocale.restype = wintypes.LPSTR
ucasemap_getLocale.argtypes = [
    ctypes.c_void_p,  # csm : UCaseMap*
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('icuuc.dll')
ucasemap_getLocale = Fiddle::Function.new(
  lib['ucasemap_getLocale'],
  [
    Fiddle::TYPE_VOIDP,  # csm : UCaseMap*
  ],
  Fiddle::TYPE_VOIDP, Fiddle::Function::CDECL)

#[link(name = "icuuc")]
extern "C" {
    fn ucasemap_getLocale(
        csm: *const isize  // UCaseMap*
    ) -> *mut u8;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("icuuc.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern IntPtr ucasemap_getLocale(ref IntPtr csm);
"@
$api = Add-Type -MemberDefinition $sig -Name 'icuuc_ucasemap_getLocale' -Namespace Win32 -PassThru
# $api::ucasemap_getLocale(csm)

#uselib "icuuc.dll"
#func global ucasemap_getLocale "ucasemap_getLocale" sptr
; ucasemap_getLocale varptr(csm)   ; 戻り値は stat
; csm : UCaseMap* -> "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")
	procucasemap_getLocale = icuuc.NewProc("ucasemap_getLocale")
)

// csm (UCaseMap*)
r1, _, err := procucasemap_getLocale.Call(
	uintptr(csm),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // LPSTR

function ucasemap_getLocale(
  csm: Pointer   // UCaseMap*
): PAnsiChar; cdecl;
  external 'icuuc.dll' name 'ucasemap_getLocale';

result := DllCall("icuuc\ucasemap_getLocale"
    , "Ptr", csm   ; UCaseMap*
    , "Cdecl Ptr")   ; return: LPSTR

●ucasemap_getLocale(csm) = DLL("icuuc.dll", "char* ucasemap_getLocale(void*)")
# 呼び出し: ucasemap_getLocale(csm)
# csm : UCaseMap* -> "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 ucasemap_getLocale(
    csm: [*c]isize // UCaseMap*
) callconv(.c) [*c]const u8;

proc ucasemap_getLocale(
    csm: ptr int  # UCaseMap*
): cstring {.importc: "ucasemap_getLocale", cdecl, dynlib: "icuuc.dll".}

pragma(lib, "icuuc");
extern(C)
const(char)* ucasemap_getLocale(
    ptrdiff_t* csm   // UCaseMap*
);

ccall((:ucasemap_getLocale, "icuuc.dll"), Cstring,
      (Ptr{Int},),
      csm)
# csm : UCaseMap* -> Ptr{Int}

local ffi = require("ffi")
ffi.cdef[[
const char* ucasemap_getLocale(
    intptr_t* csm);
]]
local icuuc = ffi.load("icuuc")
-- icuuc.ucasemap_getLocale(csm)
-- csm : UCaseMap*
-- 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 ucasemap_getLocale = lib.func('__cdecl', 'ucasemap_getLocale', 'void *', ['intptr_t *']);
// ucasemap_getLocale(csm)
// csm : UCaseMap* -> 'intptr_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", {
  ucasemap_getLocale: { parameters: ["pointer"], result: "pointer" },
});
// lib.symbols.ucasemap_getLocale(csm)
// csm : UCaseMap* -> "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
const char* ucasemap_getLocale(
    intptr_t* csm);
C, "icuuc.dll");
// $ffi->ucasemap_getLocale(csm);
// csm : UCaseMap*
// 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);
    Pointer ucasemap_getLocale(
        LongByReference csm   // UCaseMap*
    );
}

@[Link("icuuc")]
lib Libicuuc
  fun ucasemap_getLocale = ucasemap_getLocale(
    csm : LibC::SSizeT*   # UCaseMap*
  ) : UInt8*
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 ucasemap_getLocaleNative = Pointer<Utf8> Function(Pointer<IntPtr>);
typedef ucasemap_getLocaleDart = Pointer<Utf8> Function(Pointer<IntPtr>);
final ucasemap_getLocale = DynamicLibrary.open('icuuc.dll')
    .lookupFunction<ucasemap_getLocaleNative, ucasemap_getLocaleDart>('ucasemap_getLocale');
// csm : UCaseMap* -> Pointer<IntPtr>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function ucasemap_getLocale(
  csm: Pointer   // UCaseMap*
): PAnsiChar; cdecl;
  external 'icuuc.dll' name 'ucasemap_getLocale';

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

foreign import ccall safe "ucasemap_getLocale"
  c_ucasemap_getLocale :: Ptr CIntPtr -> IO CString
-- csm : UCaseMap* -> Ptr CIntPtr
-- 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 ucasemap_getlocale =
  foreign "ucasemap_getLocale"
    ((ptr intptr_t) @-> returning string)
(* csm : UCaseMap* -> (ptr intptr_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 ("ucasemap_getLocale" ucasemap-get-locale :convention :cdecl) :string
  (csm :pointer))   ; UCaseMap*
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $ucasemap_getLocale = Win32::API::More->new('icuuc',
    'LPSTR ucasemap_getLocale(LPVOID csm)');
# my $ret = $ucasemap_getLocale->Call($csm);
# csm : UCaseMap* -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。