WsReadMessageStart

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

HRESULT WsReadMessageStart(
    WS_CHANNEL* channel,
    WS_MESSAGE* message,
    const WS_ASYNC_CONTEXT* asyncContext,   // optional
    WS_ERROR* error   // optional
);

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

' channel : WS_CHANNEL*
' message : WS_MESSAGE*
' asyncContext : WS_ASYNC_CONTEXT* optional
' error : WS_ERROR* optional
Declare PtrSafe Function WsReadMessageStart Lib "webservices" ( _
    ByRef channel As LongPtr, _
    ByRef message 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

WsReadMessageStart = ctypes.windll.webservices.WsReadMessageStart
WsReadMessageStart.restype = ctypes.c_int
WsReadMessageStart.argtypes = [
    ctypes.c_void_p,  # channel : WS_CHANNEL*
    ctypes.c_void_p,  # message : WS_MESSAGE*
    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')
WsReadMessageStart = Fiddle::Function.new(
  lib['WsReadMessageStart'],
  [
    Fiddle::TYPE_VOIDP,  # channel : WS_CHANNEL*
    Fiddle::TYPE_VOIDP,  # message : WS_MESSAGE*
    Fiddle::TYPE_VOIDP,  # asyncContext : WS_ASYNC_CONTEXT* optional
    Fiddle::TYPE_VOIDP,  # error : WS_ERROR* optional
  ],
  Fiddle::TYPE_INT)

#[link(name = "webservices")]
extern "system" {
    fn WsReadMessageStart(
        channel: *mut isize,  // WS_CHANNEL*
        message: *mut isize,  // WS_MESSAGE*
        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 WsReadMessageStart(ref IntPtr channel, ref IntPtr message, IntPtr asyncContext, IntPtr error);
"@
$api = Add-Type -MemberDefinition $sig -Name 'webservices_WsReadMessageStart' -Namespace Win32 -PassThru
# $api::WsReadMessageStart(channel, message, asyncContext, error)

#uselib "webservices.dll"
#func global WsReadMessageStart "WsReadMessageStart" sptr, sptr, sptr, sptr
; WsReadMessageStart varptr(channel), varptr(message), varptr(asyncContext), varptr(error)   ; 戻り値は stat
; channel : WS_CHANNEL* -> "sptr"
; message : WS_MESSAGE* -> "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")
	procWsReadMessageStart = webservices.NewProc("WsReadMessageStart")
)

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

function WsReadMessageStart(
  channel: Pointer;   // WS_CHANNEL*
  message: Pointer;   // WS_MESSAGE*
  asyncContext: Pointer;   // WS_ASYNC_CONTEXT* optional
  error: Pointer   // WS_ERROR* optional
): Integer; stdcall;
  external 'webservices.dll' name 'WsReadMessageStart';

result := DllCall("webservices\WsReadMessageStart"
    , "Ptr", channel   ; WS_CHANNEL*
    , "Ptr", message   ; WS_MESSAGE*
    , "Ptr", asyncContext   ; WS_ASYNC_CONTEXT* optional
    , "Ptr", error   ; WS_ERROR* optional
    , "Int")   ; return: HRESULT

●WsReadMessageStart(channel, message, asyncContext, error) = DLL("webservices.dll", "int WsReadMessageStart(void*, void*, void*, void*)")
# 呼び出し: WsReadMessageStart(channel, message, asyncContext, error)
# channel : WS_CHANNEL* -> "void*"
# message : WS_MESSAGE* -> "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 WsReadMessageStart(
    channel: [*c]isize, // WS_CHANNEL*
    message: [*c]isize, // WS_MESSAGE*
    asyncContext: [*c]WS_ASYNC_CONTEXT, // WS_ASYNC_CONTEXT* optional
    error: [*c]isize // WS_ERROR* optional
) callconv(std.os.windows.WINAPI) i32;

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

pragma(lib, "webservices");
extern(Windows)
int WsReadMessageStart(
    ptrdiff_t* channel,   // WS_CHANNEL*
    ptrdiff_t* message,   // WS_MESSAGE*
    WS_ASYNC_CONTEXT* asyncContext,   // WS_ASYNC_CONTEXT* optional
    ptrdiff_t* error   // WS_ERROR* optional
);

ccall((:WsReadMessageStart, "webservices.dll"), stdcall, Int32,
      (Ptr{Int}, Ptr{Int}, Ptr{WS_ASYNC_CONTEXT}, Ptr{Int}),
      channel, message, asyncContext, error)
# channel : WS_CHANNEL* -> Ptr{Int}
# message : WS_MESSAGE* -> Ptr{Int}
# 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 WsReadMessageStart(
    intptr_t* channel,
    intptr_t* message,
    void* asyncContext,
    intptr_t* error);
]]
local webservices = ffi.load("webservices")
-- webservices.WsReadMessageStart(channel, message, asyncContext, error)
-- channel : WS_CHANNEL*
-- message : WS_MESSAGE*
-- 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 WsReadMessageStart = lib.func('__stdcall', 'WsReadMessageStart', 'int32_t', ['intptr_t *', 'intptr_t *', 'void *', 'intptr_t *']);
// WsReadMessageStart(channel, message, asyncContext, error)
// channel : WS_CHANNEL* -> 'intptr_t *'
// message : WS_MESSAGE* -> 'intptr_t *'
// 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", {
  WsReadMessageStart: { parameters: ["pointer", "pointer", "pointer", "pointer"], result: "i32" },
});
// lib.symbols.WsReadMessageStart(channel, message, asyncContext, error)
// channel : WS_CHANNEL* -> "pointer"
// message : WS_MESSAGE* -> "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 WsReadMessageStart(
    intptr_t* channel,
    intptr_t* message,
    void* asyncContext,
    intptr_t* error);
C, "webservices.dll");
// $ffi->WsReadMessageStart(channel, message, asyncContext, error);
// channel : WS_CHANNEL*
// message : WS_MESSAGE*
// 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 WsReadMessageStart(
        LongByReference channel,   // WS_CHANNEL*
        LongByReference message,   // WS_MESSAGE*
        Pointer asyncContext,   // WS_ASYNC_CONTEXT* optional
        LongByReference error   // WS_ERROR* optional
    );
}

@[Link("webservices")]
lib Libwebservices
  fun WsReadMessageStart = WsReadMessageStart(
    channel : LibC::SSizeT*,   # WS_CHANNEL*
    message : LibC::SSizeT*,   # WS_MESSAGE*
    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 WsReadMessageStartNative = Int32 Function(Pointer<IntPtr>, Pointer<IntPtr>, Pointer<Void>, Pointer<IntPtr>);
typedef WsReadMessageStartDart = int Function(Pointer<IntPtr>, Pointer<IntPtr>, Pointer<Void>, Pointer<IntPtr>);
final WsReadMessageStart = DynamicLibrary.open('webservices.dll')
    .lookupFunction<WsReadMessageStartNative, WsReadMessageStartDart>('WsReadMessageStart');
// channel : WS_CHANNEL* -> Pointer<IntPtr>
// message : WS_MESSAGE* -> Pointer<IntPtr>
// 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 WsReadMessageStart(
  channel: Pointer;   // WS_CHANNEL*
  message: Pointer;   // WS_MESSAGE*
  asyncContext: Pointer;   // WS_ASYNC_CONTEXT* optional
  error: Pointer   // WS_ERROR* optional
): Integer; stdcall;
  external 'webservices.dll' name 'WsReadMessageStart';

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

foreign import stdcall safe "WsReadMessageStart"
  c_WsReadMessageStart :: Ptr CIntPtr -> Ptr CIntPtr -> Ptr () -> Ptr CIntPtr -> IO Int32
-- channel : WS_CHANNEL* -> Ptr CIntPtr
-- message : WS_MESSAGE* -> Ptr CIntPtr
-- 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 wsreadmessagestart =
  foreign "WsReadMessageStart"
    ((ptr intptr_t) @-> (ptr intptr_t) @-> (ptr void) @-> (ptr intptr_t) @-> returning int32_t)
(* channel : WS_CHANNEL* -> (ptr intptr_t) *)
(* message : WS_MESSAGE* -> (ptr intptr_t) *)
(* 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 ("WsReadMessageStart" ws-read-message-start :convention :stdcall) :int32
  (channel :pointer)   ; WS_CHANNEL*
  (message :pointer)   ; WS_MESSAGE*
  (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 $WsReadMessageStart = Win32::API::More->new('webservices',
    'int WsReadMessageStart(LPVOID channel, LPVOID message, LPVOID asyncContext, LPVOID error)');
# my $ret = $WsReadMessageStart->Call($channel, $message, $asyncContext, $error);
# channel : WS_CHANNEL* -> LPVOID
# message : WS_MESSAGE* -> 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。