WsOpenChannel

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

HRESULT WsOpenChannel(
    WS_CHANNEL* channel,
    const WS_ENDPOINT_ADDRESS* endpointAddress,
    const WS_ASYNC_CONTEXT* asyncContext,   // optional
    WS_ERROR* error   // optional
);

<DllImport("webservices.dll", ExactSpelling:=True)>
Public Shared Function WsOpenChannel(
    ByRef channel As IntPtr,   ' WS_CHANNEL*
    endpointAddress As IntPtr,   ' WS_ENDPOINT_ADDRESS*
    asyncContext As IntPtr,   ' WS_ASYNC_CONTEXT* optional
    [error] As IntPtr   ' WS_ERROR* optional
) As Integer
End Function

' channel : WS_CHANNEL*
' endpointAddress : WS_ENDPOINT_ADDRESS*
' asyncContext : WS_ASYNC_CONTEXT* optional
' error : WS_ERROR* optional
Declare PtrSafe Function WsOpenChannel Lib "webservices" ( _
    ByRef channel As LongPtr, _
    ByVal endpointAddress As LongPtr, _
    ByVal asyncContext As LongPtr, _
    ByVal error As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

WsOpenChannel = ctypes.windll.webservices.WsOpenChannel
WsOpenChannel.restype = ctypes.c_int
WsOpenChannel.argtypes = [
    ctypes.c_void_p,  # channel : WS_CHANNEL*
    ctypes.c_void_p,  # endpointAddress : WS_ENDPOINT_ADDRESS*
    ctypes.c_void_p,  # asyncContext : WS_ASYNC_CONTEXT* optional
    ctypes.c_void_p,  # error : WS_ERROR* optional
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('webservices.dll')
WsOpenChannel = Fiddle::Function.new(
  lib['WsOpenChannel'],
  [
    Fiddle::TYPE_VOIDP,  # channel : WS_CHANNEL*
    Fiddle::TYPE_VOIDP,  # endpointAddress : WS_ENDPOINT_ADDRESS*
    Fiddle::TYPE_VOIDP,  # asyncContext : WS_ASYNC_CONTEXT* optional
    Fiddle::TYPE_VOIDP,  # error : WS_ERROR* optional
  ],
  Fiddle::TYPE_INT)

#[link(name = "webservices")]
extern "system" {
    fn WsOpenChannel(
        channel: *mut isize,  // WS_CHANNEL*
        endpointAddress: *const WS_ENDPOINT_ADDRESS,  // WS_ENDPOINT_ADDRESS*
        asyncContext: *const WS_ASYNC_CONTEXT,  // WS_ASYNC_CONTEXT* optional
        error: *mut isize  // WS_ERROR* optional
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("webservices.dll")]
public static extern int WsOpenChannel(ref IntPtr channel, IntPtr endpointAddress, IntPtr asyncContext, IntPtr error);
"@
$api = Add-Type -MemberDefinition $sig -Name 'webservices_WsOpenChannel' -Namespace Win32 -PassThru
# $api::WsOpenChannel(channel, endpointAddress, asyncContext, error)

#uselib "webservices.dll"
#func global WsOpenChannel "WsOpenChannel" sptr, sptr, sptr, sptr
; WsOpenChannel varptr(channel), varptr(endpointAddress), varptr(asyncContext), varptr(error)   ; 戻り値は stat
; channel : WS_CHANNEL* -> "sptr"
; endpointAddress : WS_ENDPOINT_ADDRESS* -> "sptr"
; asyncContext : WS_ASYNC_CONTEXT* optional -> "sptr"
; error : WS_ERROR* optional -> "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 (
	webservices = windows.NewLazySystemDLL("webservices.dll")
	procWsOpenChannel = webservices.NewProc("WsOpenChannel")
)

// channel (WS_CHANNEL*), endpointAddress (WS_ENDPOINT_ADDRESS*), asyncContext (WS_ASYNC_CONTEXT* optional), error (WS_ERROR* optional)
r1, _, err := procWsOpenChannel.Call(
	uintptr(channel),
	uintptr(endpointAddress),
	uintptr(asyncContext),
	uintptr(error),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function WsOpenChannel(
  channel: Pointer;   // WS_CHANNEL*
  endpointAddress: Pointer;   // WS_ENDPOINT_ADDRESS*
  asyncContext: Pointer;   // WS_ASYNC_CONTEXT* optional
  error: Pointer   // WS_ERROR* optional
): Integer; stdcall;
  external 'webservices.dll' name 'WsOpenChannel';

result := DllCall("webservices\WsOpenChannel"
    , "Ptr", channel   ; WS_CHANNEL*
    , "Ptr", endpointAddress   ; WS_ENDPOINT_ADDRESS*
    , "Ptr", asyncContext   ; WS_ASYNC_CONTEXT* optional
    , "Ptr", error   ; WS_ERROR* optional
    , "Int")   ; return: HRESULT

●WsOpenChannel(channel, endpointAddress, asyncContext, error) = DLL("webservices.dll", "int WsOpenChannel(void*, void*, void*, void*)")
# 呼び出し: WsOpenChannel(channel, endpointAddress, asyncContext, error)
# channel : WS_CHANNEL* -> "void*"
# endpointAddress : WS_ENDPOINT_ADDRESS* -> "void*"
# asyncContext : WS_ASYNC_CONTEXT* optional -> "void*"
# error : WS_ERROR* optional -> "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)。

const std = @import("std");

extern "webservices" fn WsOpenChannel(
    channel: [*c]isize, // WS_CHANNEL*
    endpointAddress: [*c]WS_ENDPOINT_ADDRESS, // WS_ENDPOINT_ADDRESS*
    asyncContext: [*c]WS_ASYNC_CONTEXT, // WS_ASYNC_CONTEXT* optional
    error: [*c]isize // WS_ERROR* optional
) callconv(std.os.windows.WINAPI) i32;

proc WsOpenChannel(
    channel: ptr int,  # WS_CHANNEL*
    endpointAddress: ptr WS_ENDPOINT_ADDRESS,  # WS_ENDPOINT_ADDRESS*
    asyncContext: ptr WS_ASYNC_CONTEXT,  # WS_ASYNC_CONTEXT* optional
    error: ptr int  # WS_ERROR* optional
): int32 {.importc: "WsOpenChannel", stdcall, dynlib: "webservices.dll".}

pragma(lib, "webservices");
extern(Windows)
int WsOpenChannel(
    ptrdiff_t* channel,   // WS_CHANNEL*
    WS_ENDPOINT_ADDRESS* endpointAddress,   // WS_ENDPOINT_ADDRESS*
    WS_ASYNC_CONTEXT* asyncContext,   // WS_ASYNC_CONTEXT* optional
    ptrdiff_t* error   // WS_ERROR* optional
);

ccall((:WsOpenChannel, "webservices.dll"), stdcall, Int32,
      (Ptr{Int}, Ptr{WS_ENDPOINT_ADDRESS}, Ptr{WS_ASYNC_CONTEXT}, Ptr{Int}),
      channel, endpointAddress, asyncContext, error)
# channel : WS_CHANNEL* -> Ptr{Int}
# endpointAddress : WS_ENDPOINT_ADDRESS* -> Ptr{WS_ENDPOINT_ADDRESS}
# asyncContext : WS_ASYNC_CONTEXT* optional -> Ptr{WS_ASYNC_CONTEXT}
# error : WS_ERROR* optional -> Ptr{Int}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t WsOpenChannel(
    intptr_t* channel,
    void* endpointAddress,
    void* asyncContext,
    intptr_t* error);
]]
local webservices = ffi.load("webservices")
-- webservices.WsOpenChannel(channel, endpointAddress, asyncContext, error)
-- channel : WS_CHANNEL*
-- endpointAddress : WS_ENDPOINT_ADDRESS*
-- asyncContext : WS_ASYNC_CONTEXT* optional
-- error : WS_ERROR* optional
-- 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('webservices.dll');
const WsOpenChannel = lib.func('__stdcall', 'WsOpenChannel', 'int32_t', ['intptr_t *', 'void *', 'void *', 'intptr_t *']);
// WsOpenChannel(channel, endpointAddress, asyncContext, error)
// channel : WS_CHANNEL* -> 'intptr_t *'
// endpointAddress : WS_ENDPOINT_ADDRESS* -> 'void *'
// asyncContext : WS_ASYNC_CONTEXT* optional -> 'void *'
// error : WS_ERROR* optional -> '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("webservices.dll", {
  WsOpenChannel: { parameters: ["pointer", "pointer", "pointer", "pointer"], result: "i32" },
});
// lib.symbols.WsOpenChannel(channel, endpointAddress, asyncContext, error)
// channel : WS_CHANNEL* -> "pointer"
// endpointAddress : WS_ENDPOINT_ADDRESS* -> "pointer"
// asyncContext : WS_ASYNC_CONTEXT* optional -> "pointer"
// error : WS_ERROR* optional -> "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 WsOpenChannel(
    intptr_t* channel,
    void* endpointAddress,
    void* asyncContext,
    intptr_t* error);
C, "webservices.dll");
// $ffi->WsOpenChannel(channel, endpointAddress, asyncContext, error);
// channel : WS_CHANNEL*
// endpointAddress : WS_ENDPOINT_ADDRESS*
// asyncContext : WS_ASYNC_CONTEXT* optional
// error : WS_ERROR* optional
// 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。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。

import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;

public interface Webservices extends StdCallLibrary {
    Webservices INSTANCE = Native.load("webservices", Webservices.class);
    int WsOpenChannel(
        LongByReference channel,   // WS_CHANNEL*
        Pointer endpointAddress,   // WS_ENDPOINT_ADDRESS*
        Pointer asyncContext,   // WS_ASYNC_CONTEXT* optional
        LongByReference error   // WS_ERROR* optional
    );
}

@[Link("webservices")]
lib Libwebservices
  fun WsOpenChannel = WsOpenChannel(
    channel : LibC::SSizeT*,   # WS_CHANNEL*
    endpointAddress : WS_ENDPOINT_ADDRESS*,   # WS_ENDPOINT_ADDRESS*
    asyncContext : WS_ASYNC_CONTEXT*,   # WS_ASYNC_CONTEXT* optional
    error : LibC::SSizeT*   # WS_ERROR* optional
  ) : Int32
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。

import 'dart:ffi';
import 'package:ffi/ffi.dart';

typedef WsOpenChannelNative = Int32 Function(Pointer<IntPtr>, Pointer<Void>, Pointer<Void>, Pointer<IntPtr>);
typedef WsOpenChannelDart = int Function(Pointer<IntPtr>, Pointer<Void>, Pointer<Void>, Pointer<IntPtr>);
final WsOpenChannel = DynamicLibrary.open('webservices.dll')
    .lookupFunction<WsOpenChannelNative, WsOpenChannelDart>('WsOpenChannel');
// channel : WS_CHANNEL* -> Pointer<IntPtr>
// endpointAddress : WS_ENDPOINT_ADDRESS* -> Pointer<Void>
// asyncContext : WS_ASYNC_CONTEXT* optional -> Pointer<Void>
// error : WS_ERROR* optional -> Pointer<IntPtr>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function WsOpenChannel(
  channel: Pointer;   // WS_CHANNEL*
  endpointAddress: Pointer;   // WS_ENDPOINT_ADDRESS*
  asyncContext: Pointer;   // WS_ASYNC_CONTEXT* optional
  error: Pointer   // WS_ERROR* optional
): Integer; stdcall;
  external 'webservices.dll' name 'WsOpenChannel';

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

foreign import stdcall safe "WsOpenChannel"
  c_WsOpenChannel :: Ptr CIntPtr -> Ptr () -> Ptr () -> Ptr CIntPtr -> IO Int32
-- channel : WS_CHANNEL* -> Ptr CIntPtr
-- endpointAddress : WS_ENDPOINT_ADDRESS* -> Ptr ()
-- asyncContext : WS_ASYNC_CONTEXT* optional -> Ptr ()
-- error : WS_ERROR* optional -> 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 wsopenchannel =
  foreign "WsOpenChannel"
    ((ptr intptr_t) @-> (ptr void) @-> (ptr void) @-> (ptr intptr_t) @-> returning int32_t)
(* channel : WS_CHANNEL* -> (ptr intptr_t) *)
(* endpointAddress : WS_ENDPOINT_ADDRESS* -> (ptr void) *)
(* asyncContext : WS_ASYNC_CONTEXT* optional -> (ptr void) *)
(* error : WS_ERROR* optional -> (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 webservices (t "webservices.dll"))
(cffi:use-foreign-library webservices)

(cffi:defcfun ("WsOpenChannel" ws-open-channel :convention :stdcall) :int32
  (channel :pointer)   ; WS_CHANNEL*
  (endpoint-address :pointer)   ; WS_ENDPOINT_ADDRESS*
  (async-context :pointer)   ; WS_ASYNC_CONTEXT* optional
  (error :pointer))   ; WS_ERROR* optional
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $WsOpenChannel = Win32::API::More->new('webservices',
    'int WsOpenChannel(LPVOID channel, LPVOID endpointAddress, LPVOID asyncContext, LPVOID error)');
# my $ret = $WsOpenChannel->Call($channel, $endpointAddress, $asyncContext, $error);
# channel : WS_CHANNEL* -> LPVOID
# endpointAddress : WS_ENDPOINT_ADDRESS* -> LPVOID
# asyncContext : WS_ASYNC_CONTEXT* optional -> LPVOID
# error : WS_ERROR* optional -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。