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WsCall

関数
サービスプロキシを介してサービス操作を呼び出す。
DLLwebservices.dll呼出規約winapi対応OSWindows 7 以降
📘 Microsoft Learn (日本語) · English

シグネチャ

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

HRESULT WsCall(
    WS_SERVICE_PROXY* serviceProxy,
    const WS_OPERATION_DESCRIPTION* operation,
    const void** arguments,   // optional
    WS_HEAP* heap,
    const WS_CALL_PROPERTY* callProperties,   // optional
    DWORD callPropertyCount,
    const WS_ASYNC_CONTEXT* asyncContext,   // optional
    WS_ERROR* error   // optional
);

パラメーター

名前型方向説明
serviceProxyWS_SERVICE_PROXY*in呼び出しを行うWS_SERVICE_PROXYオブジェクト。
operationWS_OPERATION_DESCRIPTION*in呼び出す操作の定義を示すWS_OPERATION_DESCRIPTION。
argumentsvoid**inoptional操作の入出力引数へのポインタ配列。
heapWS_HEAP*in戻り値などの確保に使うWS_HEAP。
callPropertiesWS_CALL_PROPERTY*inoptional呼び出しのプロパティ配列WS_CALL_PROPERTY。不要ならNULL可。
callPropertyCountDWORDincallProperties配列の要素数を指定する。
asyncContextWS_ASYNC_CONTEXT*inoptional非同期実行を指定するWS_ASYNC_CONTEXT。同期実行ならNULL。
errorWS_ERROR*inoptional詳細なエラー情報を格納するWS_ERRORオブジェクト。NULL可。

戻り値の型: HRESULT

各言語での呼び出し定義

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

HRESULT WsCall(
    WS_SERVICE_PROXY* serviceProxy,
    const WS_OPERATION_DESCRIPTION* operation,
    const void** arguments,   // optional
    WS_HEAP* heap,
    const WS_CALL_PROPERTY* callProperties,   // optional
    DWORD callPropertyCount,
    const WS_ASYNC_CONTEXT* asyncContext,   // optional
    WS_ERROR* error   // optional
);
[DllImport("webservices.dll", ExactSpelling = true)]
static extern int WsCall(
    ref IntPtr serviceProxy,   // WS_SERVICE_PROXY*
    IntPtr operation,   // WS_OPERATION_DESCRIPTION*
    IntPtr arguments,   // void** optional
    ref IntPtr heap,   // WS_HEAP*
    IntPtr callProperties,   // WS_CALL_PROPERTY* optional
    uint callPropertyCount,   // DWORD
    IntPtr asyncContext,   // WS_ASYNC_CONTEXT* optional
    IntPtr error   // WS_ERROR* optional
);
<DllImport("webservices.dll", ExactSpelling:=True)>
Public Shared Function WsCall(
    ByRef serviceProxy As IntPtr,   ' WS_SERVICE_PROXY*
    operation As IntPtr,   ' WS_OPERATION_DESCRIPTION*
    arguments As IntPtr,   ' void** optional
    ByRef heap As IntPtr,   ' WS_HEAP*
    callProperties As IntPtr,   ' WS_CALL_PROPERTY* optional
    callPropertyCount As UInteger,   ' DWORD
    asyncContext As IntPtr,   ' WS_ASYNC_CONTEXT* optional
    [error] As IntPtr   ' WS_ERROR* optional
) As Integer
End Function
' serviceProxy : WS_SERVICE_PROXY*
' operation : WS_OPERATION_DESCRIPTION*
' arguments : void** optional
' heap : WS_HEAP*
' callProperties : WS_CALL_PROPERTY* optional
' callPropertyCount : DWORD
' asyncContext : WS_ASYNC_CONTEXT* optional
' error : WS_ERROR* optional
Declare PtrSafe Function WsCall Lib "webservices" ( _
    ByRef serviceProxy As LongPtr, _
    ByVal operation As LongPtr, _
    ByVal arguments As LongPtr, _
    ByRef heap As LongPtr, _
    ByVal callProperties As LongPtr, _
    ByVal callPropertyCount As Long, _
    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

WsCall = ctypes.windll.webservices.WsCall
WsCall.restype = ctypes.c_int
WsCall.argtypes = [
    ctypes.c_void_p,  # serviceProxy : WS_SERVICE_PROXY*
    ctypes.c_void_p,  # operation : WS_OPERATION_DESCRIPTION*
    ctypes.c_void_p,  # arguments : void** optional
    ctypes.c_void_p,  # heap : WS_HEAP*
    ctypes.c_void_p,  # callProperties : WS_CALL_PROPERTY* optional
    wintypes.DWORD,  # callPropertyCount : DWORD
    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')
WsCall = Fiddle::Function.new(
  lib['WsCall'],
  [
    Fiddle::TYPE_VOIDP,  # serviceProxy : WS_SERVICE_PROXY*
    Fiddle::TYPE_VOIDP,  # operation : WS_OPERATION_DESCRIPTION*
    Fiddle::TYPE_VOIDP,  # arguments : void** optional
    Fiddle::TYPE_VOIDP,  # heap : WS_HEAP*
    Fiddle::TYPE_VOIDP,  # callProperties : WS_CALL_PROPERTY* optional
    -Fiddle::TYPE_INT,  # callPropertyCount : DWORD
    Fiddle::TYPE_VOIDP,  # asyncContext : WS_ASYNC_CONTEXT* optional
    Fiddle::TYPE_VOIDP,  # error : WS_ERROR* optional
  ],
  Fiddle::TYPE_INT)
#[link(name = "webservices")]
extern "system" {
    fn WsCall(
        serviceProxy: *mut isize,  // WS_SERVICE_PROXY*
        operation: *const WS_OPERATION_DESCRIPTION,  // WS_OPERATION_DESCRIPTION*
        arguments: *const *const (),  // void** optional
        heap: *mut isize,  // WS_HEAP*
        callProperties: *const WS_CALL_PROPERTY,  // WS_CALL_PROPERTY* optional
        callPropertyCount: u32,  // DWORD
        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 WsCall(ref IntPtr serviceProxy, IntPtr operation, IntPtr arguments, ref IntPtr heap, IntPtr callProperties, uint callPropertyCount, IntPtr asyncContext, IntPtr error);
"@
$api = Add-Type -MemberDefinition $sig -Name 'webservices_WsCall' -Namespace Win32 -PassThru
# $api::WsCall(serviceProxy, operation, arguments, heap, callProperties, callPropertyCount, asyncContext, error)
#uselib "webservices.dll"
#func global WsCall "WsCall" sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr
; WsCall varptr(serviceProxy), varptr(operation), arguments, varptr(heap), varptr(callProperties), callPropertyCount, varptr(asyncContext), varptr(error)   ; 戻り値は stat
; serviceProxy : WS_SERVICE_PROXY* -> "sptr"
; operation : WS_OPERATION_DESCRIPTION* -> "sptr"
; arguments : void** optional -> "sptr"
; heap : WS_HEAP* -> "sptr"
; callProperties : WS_CALL_PROPERTY* optional -> "sptr"
; callPropertyCount : DWORD -> "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。
出力引数: 
#uselib "webservices.dll"
#cfunc global WsCall "WsCall" var, var, sptr, var, var, int, var, var
; res = WsCall(serviceProxy, operation, arguments, heap, callProperties, callPropertyCount, asyncContext, error)
; serviceProxy : WS_SERVICE_PROXY* -> "var"
; operation : WS_OPERATION_DESCRIPTION* -> "var"
; arguments : void** optional -> "sptr"
; heap : WS_HEAP* -> "var"
; callProperties : WS_CALL_PROPERTY* optional -> "var"
; callPropertyCount : DWORD -> "int"
; asyncContext : WS_ASYNC_CONTEXT* optional -> "var"
; error : WS_ERROR* optional -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。
出力引数: 
; HRESULT WsCall(WS_SERVICE_PROXY* serviceProxy, WS_OPERATION_DESCRIPTION* operation, void** arguments, WS_HEAP* heap, WS_CALL_PROPERTY* callProperties, DWORD callPropertyCount, WS_ASYNC_CONTEXT* asyncContext, WS_ERROR* error)
#uselib "webservices.dll"
#cfunc global WsCall "WsCall" var, var, intptr, var, var, int, var, var
; res = WsCall(serviceProxy, operation, arguments, heap, callProperties, callPropertyCount, asyncContext, error)
; serviceProxy : WS_SERVICE_PROXY* -> "var"
; operation : WS_OPERATION_DESCRIPTION* -> "var"
; arguments : void** optional -> "intptr"
; heap : WS_HEAP* -> "var"
; callProperties : WS_CALL_PROPERTY* optional -> "var"
; callPropertyCount : DWORD -> "int"
; asyncContext : WS_ASYNC_CONTEXT* optional -> "var"
; error : WS_ERROR* optional -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。
import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	webservices = windows.NewLazySystemDLL("webservices.dll")
	procWsCall = webservices.NewProc("WsCall")
)

// serviceProxy (WS_SERVICE_PROXY*), operation (WS_OPERATION_DESCRIPTION*), arguments (void** optional), heap (WS_HEAP*), callProperties (WS_CALL_PROPERTY* optional), callPropertyCount (DWORD), asyncContext (WS_ASYNC_CONTEXT* optional), error (WS_ERROR* optional)
r1, _, err := procWsCall.Call(
	uintptr(serviceProxy),
	uintptr(operation),
	uintptr(arguments),
	uintptr(heap),
	uintptr(callProperties),
	uintptr(callPropertyCount),
	uintptr(asyncContext),
	uintptr(error),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT
function WsCall(
  serviceProxy: Pointer;   // WS_SERVICE_PROXY*
  operation: Pointer;   // WS_OPERATION_DESCRIPTION*
  arguments: Pointer;   // void** optional
  heap: Pointer;   // WS_HEAP*
  callProperties: Pointer;   // WS_CALL_PROPERTY* optional
  callPropertyCount: DWORD;   // DWORD
  asyncContext: Pointer;   // WS_ASYNC_CONTEXT* optional
  error: Pointer   // WS_ERROR* optional
): Integer; stdcall;
  external 'webservices.dll' name 'WsCall';
result := DllCall("webservices\WsCall"
    , "Ptr", serviceProxy   ; WS_SERVICE_PROXY*
    , "Ptr", operation   ; WS_OPERATION_DESCRIPTION*
    , "Ptr", arguments   ; void** optional
    , "Ptr", heap   ; WS_HEAP*
    , "Ptr", callProperties   ; WS_CALL_PROPERTY* optional
    , "UInt", callPropertyCount   ; DWORD
    , "Ptr", asyncContext   ; WS_ASYNC_CONTEXT* optional
    , "Ptr", error   ; WS_ERROR* optional
    , "Int")   ; return: HRESULT
●WsCall(serviceProxy, operation, arguments, heap, callProperties, callPropertyCount, asyncContext, error) = DLL("webservices.dll", "int WsCall(void*, void*, void*, void*, void*, dword, void*, void*)")
# 呼び出し: WsCall(serviceProxy, operation, arguments, heap, callProperties, callPropertyCount, asyncContext, error)
# serviceProxy : WS_SERVICE_PROXY* -> "void*"
# operation : WS_OPERATION_DESCRIPTION* -> "void*"
# arguments : void** optional -> "void*"
# heap : WS_HEAP* -> "void*"
# callProperties : WS_CALL_PROPERTY* optional -> "void*"
# callPropertyCount : DWORD -> "dword"
# 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 WsCall(
    serviceProxy: [*c]isize, // WS_SERVICE_PROXY*
    operation: [*c]WS_OPERATION_DESCRIPTION, // WS_OPERATION_DESCRIPTION*
    arguments: ?*anyopaque, // void** optional
    heap: [*c]isize, // WS_HEAP*
    callProperties: [*c]WS_CALL_PROPERTY, // WS_CALL_PROPERTY* optional
    callPropertyCount: u32, // DWORD
    asyncContext: [*c]WS_ASYNC_CONTEXT, // WS_ASYNC_CONTEXT* optional
    error: [*c]isize // WS_ERROR* optional
) callconv(std.os.windows.WINAPI) i32;
proc WsCall(
    serviceProxy: ptr int,  # WS_SERVICE_PROXY*
    operation: ptr WS_OPERATION_DESCRIPTION,  # WS_OPERATION_DESCRIPTION*
    arguments: pointer,  # void** optional
    heap: ptr int,  # WS_HEAP*
    callProperties: ptr WS_CALL_PROPERTY,  # WS_CALL_PROPERTY* optional
    callPropertyCount: uint32,  # DWORD
    asyncContext: ptr WS_ASYNC_CONTEXT,  # WS_ASYNC_CONTEXT* optional
    error: ptr int  # WS_ERROR* optional
): int32 {.importc: "WsCall", stdcall, dynlib: "webservices.dll".}
pragma(lib, "webservices");
extern(Windows)
int WsCall(
    ptrdiff_t* serviceProxy,   // WS_SERVICE_PROXY*
    WS_OPERATION_DESCRIPTION* operation,   // WS_OPERATION_DESCRIPTION*
    void** arguments,   // void** optional
    ptrdiff_t* heap,   // WS_HEAP*
    WS_CALL_PROPERTY* callProperties,   // WS_CALL_PROPERTY* optional
    uint callPropertyCount,   // DWORD
    WS_ASYNC_CONTEXT* asyncContext,   // WS_ASYNC_CONTEXT* optional
    ptrdiff_t* error   // WS_ERROR* optional
);
ccall((:WsCall, "webservices.dll"), stdcall, Int32,
      (Ptr{Int}, Ptr{WS_OPERATION_DESCRIPTION}, Ptr{Cvoid}, Ptr{Int}, Ptr{WS_CALL_PROPERTY}, UInt32, Ptr{WS_ASYNC_CONTEXT}, Ptr{Int}),
      serviceProxy, operation, arguments, heap, callProperties, callPropertyCount, asyncContext, error)
# serviceProxy : WS_SERVICE_PROXY* -> Ptr{Int}
# operation : WS_OPERATION_DESCRIPTION* -> Ptr{WS_OPERATION_DESCRIPTION}
# arguments : void** optional -> Ptr{Cvoid}
# heap : WS_HEAP* -> Ptr{Int}
# callProperties : WS_CALL_PROPERTY* optional -> Ptr{WS_CALL_PROPERTY}
# callPropertyCount : DWORD -> UInt32
# 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 WsCall(
    intptr_t* serviceProxy,
    void* operation,
    void** arguments,
    intptr_t* heap,
    void* callProperties,
    uint32_t callPropertyCount,
    void* asyncContext,
    intptr_t* error);
]]
local webservices = ffi.load("webservices")
-- webservices.WsCall(serviceProxy, operation, arguments, heap, callProperties, callPropertyCount, asyncContext, error)
-- serviceProxy : WS_SERVICE_PROXY*
-- operation : WS_OPERATION_DESCRIPTION*
-- arguments : void** optional
-- heap : WS_HEAP*
-- callProperties : WS_CALL_PROPERTY* optional
-- callPropertyCount : DWORD
-- 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 WsCall = lib.func('__stdcall', 'WsCall', 'int32_t', ['intptr_t *', 'void *', 'void *', 'intptr_t *', 'void *', 'uint32_t', 'void *', 'intptr_t *']);
// WsCall(serviceProxy, operation, arguments, heap, callProperties, callPropertyCount, asyncContext, error)
// serviceProxy : WS_SERVICE_PROXY* -> 'intptr_t *'
// operation : WS_OPERATION_DESCRIPTION* -> 'void *'
// arguments : void** optional -> 'void *'
// heap : WS_HEAP* -> 'intptr_t *'
// callProperties : WS_CALL_PROPERTY* optional -> 'void *'
// callPropertyCount : DWORD -> 'uint32_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", {
  WsCall: { parameters: ["pointer", "pointer", "pointer", "pointer", "pointer", "u32", "pointer", "pointer"], result: "i32" },
});
// lib.symbols.WsCall(serviceProxy, operation, arguments, heap, callProperties, callPropertyCount, asyncContext, error)
// serviceProxy : WS_SERVICE_PROXY* -> "pointer"
// operation : WS_OPERATION_DESCRIPTION* -> "pointer"
// arguments : void** optional -> "pointer"
// heap : WS_HEAP* -> "pointer"
// callProperties : WS_CALL_PROPERTY* optional -> "pointer"
// callPropertyCount : DWORD -> "u32"
// 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 WsCall(
    intptr_t* serviceProxy,
    void* operation,
    void** arguments,
    intptr_t* heap,
    void* callProperties,
    uint32_t callPropertyCount,
    void* asyncContext,
    intptr_t* error);
C, "webservices.dll");
// $ffi->WsCall(serviceProxy, operation, arguments, heap, callProperties, callPropertyCount, asyncContext, error);
// serviceProxy : WS_SERVICE_PROXY*
// operation : WS_OPERATION_DESCRIPTION*
// arguments : void** optional
// heap : WS_HEAP*
// callProperties : WS_CALL_PROPERTY* optional
// callPropertyCount : DWORD
// 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 WsCall(
        LongByReference serviceProxy,   // WS_SERVICE_PROXY*
        Pointer operation,   // WS_OPERATION_DESCRIPTION*
        Pointer arguments,   // void** optional
        LongByReference heap,   // WS_HEAP*
        Pointer callProperties,   // WS_CALL_PROPERTY* optional
        int callPropertyCount,   // DWORD
        Pointer asyncContext,   // WS_ASYNC_CONTEXT* optional
        LongByReference error   // WS_ERROR* optional
    );
}
@[Link("webservices")]
lib Libwebservices
  fun WsCall = WsCall(
    serviceProxy : LibC::SSizeT*,   # WS_SERVICE_PROXY*
    operation : WS_OPERATION_DESCRIPTION*,   # WS_OPERATION_DESCRIPTION*
    arguments : Void**,   # void** optional
    heap : LibC::SSizeT*,   # WS_HEAP*
    callProperties : WS_CALL_PROPERTY*,   # WS_CALL_PROPERTY* optional
    callPropertyCount : UInt32,   # DWORD
    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 WsCallNative = Int32 Function(Pointer<IntPtr>, Pointer<Void>, Pointer<Void>, Pointer<IntPtr>, Pointer<Void>, Uint32, Pointer<Void>, Pointer<IntPtr>);
typedef WsCallDart = int Function(Pointer<IntPtr>, Pointer<Void>, Pointer<Void>, Pointer<IntPtr>, Pointer<Void>, int, Pointer<Void>, Pointer<IntPtr>);
final WsCall = DynamicLibrary.open('webservices.dll')
    .lookupFunction<WsCallNative, WsCallDart>('WsCall');
// serviceProxy : WS_SERVICE_PROXY* -> Pointer<IntPtr>
// operation : WS_OPERATION_DESCRIPTION* -> Pointer<Void>
// arguments : void** optional -> Pointer<Void>
// heap : WS_HEAP* -> Pointer<IntPtr>
// callProperties : WS_CALL_PROPERTY* optional -> Pointer<Void>
// callPropertyCount : DWORD -> Uint32
// 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 WsCall(
  serviceProxy: Pointer;   // WS_SERVICE_PROXY*
  operation: Pointer;   // WS_OPERATION_DESCRIPTION*
  arguments: Pointer;   // void** optional
  heap: Pointer;   // WS_HEAP*
  callProperties: Pointer;   // WS_CALL_PROPERTY* optional
  callPropertyCount: DWORD;   // DWORD
  asyncContext: Pointer;   // WS_ASYNC_CONTEXT* optional
  error: Pointer   // WS_ERROR* optional
): Integer; stdcall;
  external 'webservices.dll' name 'WsCall';
import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "WsCall"
  c_WsCall :: Ptr CIntPtr -> Ptr () -> Ptr () -> Ptr CIntPtr -> Ptr () -> Word32 -> Ptr () -> Ptr CIntPtr -> IO Int32
-- serviceProxy : WS_SERVICE_PROXY* -> Ptr CIntPtr
-- operation : WS_OPERATION_DESCRIPTION* -> Ptr ()
-- arguments : void** optional -> Ptr ()
-- heap : WS_HEAP* -> Ptr CIntPtr
-- callProperties : WS_CALL_PROPERTY* optional -> Ptr ()
-- callPropertyCount : DWORD -> Word32
-- 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 wscall =
  foreign "WsCall"
    ((ptr intptr_t) @-> (ptr void) @-> (ptr void) @-> (ptr intptr_t) @-> (ptr void) @-> uint32_t @-> (ptr void) @-> (ptr intptr_t) @-> returning int32_t)
(* serviceProxy : WS_SERVICE_PROXY* -> (ptr intptr_t) *)
(* operation : WS_OPERATION_DESCRIPTION* -> (ptr void) *)
(* arguments : void** optional -> (ptr void) *)
(* heap : WS_HEAP* -> (ptr intptr_t) *)
(* callProperties : WS_CALL_PROPERTY* optional -> (ptr void) *)
(* callPropertyCount : DWORD -> uint32_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 ("WsCall" ws-call :convention :stdcall) :int32
  (service-proxy :pointer)   ; WS_SERVICE_PROXY*
  (operation :pointer)   ; WS_OPERATION_DESCRIPTION*
  (arguments :pointer)   ; void** optional
  (heap :pointer)   ; WS_HEAP*
  (call-properties :pointer)   ; WS_CALL_PROPERTY* optional
  (call-property-count :uint32)   ; DWORD
  (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 $WsCall = Win32::API::More->new('webservices',
    'int WsCall(LPVOID serviceProxy, LPVOID operation, LPVOID arguments, LPVOID heap, LPVOID callProperties, DWORD callPropertyCount, LPVOID asyncContext, LPVOID error)');
# my $ret = $WsCall->Call($serviceProxy, $operation, $arguments, $heap, $callProperties, $callPropertyCount, $asyncContext, $error);
# serviceProxy : WS_SERVICE_PROXY* -> LPVOID
# operation : WS_OPERATION_DESCRIPTION* -> LPVOID
# arguments : void** optional -> LPVOID
# heap : WS_HEAP* -> LPVOID
# callProperties : WS_CALL_PROPERTY* optional -> LPVOID
# callPropertyCount : DWORD -> DWORD
# 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。

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