WsGetXmlAttribute

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

HRESULT WsGetXmlAttribute(
    WS_XML_READER* reader,
    const WS_XML_STRING* localName,
    WS_HEAP* heap,
    WORD** valueChars,   // optional
    DWORD* valueCharCount,
    WS_ERROR* error   // optional
);

<DllImport("webservices.dll", ExactSpelling:=True)>
Public Shared Function WsGetXmlAttribute(
    ByRef reader As IntPtr,   ' WS_XML_READER*
    localName As IntPtr,   ' WS_XML_STRING*
    ByRef heap As IntPtr,   ' WS_HEAP*
    valueChars As IntPtr,   ' WORD** optional, out
    <Out> ByRef valueCharCount As UInteger,   ' DWORD* out
    [error] As IntPtr   ' WS_ERROR* optional
) As Integer
End Function

' reader : WS_XML_READER*
' localName : WS_XML_STRING*
' heap : WS_HEAP*
' valueChars : WORD** optional, out
' valueCharCount : DWORD* out
' error : WS_ERROR* optional
Declare PtrSafe Function WsGetXmlAttribute Lib "webservices" ( _
    ByRef reader As LongPtr, _
    ByVal localName As LongPtr, _
    ByRef heap As LongPtr, _
    ByVal valueChars As LongPtr, _
    ByRef valueCharCount As Long, _
    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

WsGetXmlAttribute = ctypes.windll.webservices.WsGetXmlAttribute
WsGetXmlAttribute.restype = ctypes.c_int
WsGetXmlAttribute.argtypes = [
    ctypes.c_void_p,  # reader : WS_XML_READER*
    ctypes.c_void_p,  # localName : WS_XML_STRING*
    ctypes.c_void_p,  # heap : WS_HEAP*
    ctypes.c_void_p,  # valueChars : WORD** optional, out
    ctypes.POINTER(wintypes.DWORD),  # valueCharCount : DWORD* out
    ctypes.c_void_p,  # error : WS_ERROR* optional
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('webservices.dll')
WsGetXmlAttribute = Fiddle::Function.new(
  lib['WsGetXmlAttribute'],
  [
    Fiddle::TYPE_VOIDP,  # reader : WS_XML_READER*
    Fiddle::TYPE_VOIDP,  # localName : WS_XML_STRING*
    Fiddle::TYPE_VOIDP,  # heap : WS_HEAP*
    Fiddle::TYPE_VOIDP,  # valueChars : WORD** optional, out
    Fiddle::TYPE_VOIDP,  # valueCharCount : DWORD* out
    Fiddle::TYPE_VOIDP,  # error : WS_ERROR* optional
  ],
  Fiddle::TYPE_INT)

#[link(name = "webservices")]
extern "system" {
    fn WsGetXmlAttribute(
        reader: *mut isize,  // WS_XML_READER*
        localName: *const WS_XML_STRING,  // WS_XML_STRING*
        heap: *mut isize,  // WS_HEAP*
        valueChars: *mut *mut u16,  // WORD** optional, out
        valueCharCount: *mut u32,  // DWORD* out
        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 WsGetXmlAttribute(ref IntPtr reader, IntPtr localName, ref IntPtr heap, IntPtr valueChars, out uint valueCharCount, IntPtr error);
"@
$api = Add-Type -MemberDefinition $sig -Name 'webservices_WsGetXmlAttribute' -Namespace Win32 -PassThru
# $api::WsGetXmlAttribute(reader, localName, heap, valueChars, valueCharCount, error)

#uselib "webservices.dll"
#func global WsGetXmlAttribute "WsGetXmlAttribute" sptr, sptr, sptr, sptr, sptr, sptr
; WsGetXmlAttribute varptr(reader), varptr(localName), varptr(heap), varptr(valueChars), varptr(valueCharCount), varptr(error)   ; 戻り値は stat
; reader : WS_XML_READER* -> "sptr"
; localName : WS_XML_STRING* -> "sptr"
; heap : WS_HEAP* -> "sptr"
; valueChars : WORD** optional, out -> "sptr"
; valueCharCount : DWORD* out -> "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")
	procWsGetXmlAttribute = webservices.NewProc("WsGetXmlAttribute")
)

// reader (WS_XML_READER*), localName (WS_XML_STRING*), heap (WS_HEAP*), valueChars (WORD** optional, out), valueCharCount (DWORD* out), error (WS_ERROR* optional)
r1, _, err := procWsGetXmlAttribute.Call(
	uintptr(reader),
	uintptr(localName),
	uintptr(heap),
	uintptr(valueChars),
	uintptr(valueCharCount),
	uintptr(error),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function WsGetXmlAttribute(
  reader: Pointer;   // WS_XML_READER*
  localName: Pointer;   // WS_XML_STRING*
  heap: Pointer;   // WS_HEAP*
  valueChars: Pointer;   // WORD** optional, out
  valueCharCount: Pointer;   // DWORD* out
  error: Pointer   // WS_ERROR* optional
): Integer; stdcall;
  external 'webservices.dll' name 'WsGetXmlAttribute';

result := DllCall("webservices\WsGetXmlAttribute"
    , "Ptr", reader   ; WS_XML_READER*
    , "Ptr", localName   ; WS_XML_STRING*
    , "Ptr", heap   ; WS_HEAP*
    , "Ptr", valueChars   ; WORD** optional, out
    , "Ptr", valueCharCount   ; DWORD* out
    , "Ptr", error   ; WS_ERROR* optional
    , "Int")   ; return: HRESULT

●WsGetXmlAttribute(reader, localName, heap, valueChars, valueCharCount, error) = DLL("webservices.dll", "int WsGetXmlAttribute(void*, void*, void*, void*, void*, void*)")
# 呼び出し: WsGetXmlAttribute(reader, localName, heap, valueChars, valueCharCount, error)
# reader : WS_XML_READER* -> "void*"
# localName : WS_XML_STRING* -> "void*"
# heap : WS_HEAP* -> "void*"
# valueChars : WORD** optional, out -> "void*"
# valueCharCount : DWORD* out -> "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 WsGetXmlAttribute(
    reader: [*c]isize, // WS_XML_READER*
    localName: [*c]WS_XML_STRING, // WS_XML_STRING*
    heap: [*c]isize, // WS_HEAP*
    valueChars: [*c][*c]u16, // WORD** optional, out
    valueCharCount: [*c]u32, // DWORD* out
    error: [*c]isize // WS_ERROR* optional
) callconv(std.os.windows.WINAPI) i32;

proc WsGetXmlAttribute(
    reader: ptr int,  # WS_XML_READER*
    localName: ptr WS_XML_STRING,  # WS_XML_STRING*
    heap: ptr int,  # WS_HEAP*
    valueChars: ptr uint16,  # WORD** optional, out
    valueCharCount: ptr uint32,  # DWORD* out
    error: ptr int  # WS_ERROR* optional
): int32 {.importc: "WsGetXmlAttribute", stdcall, dynlib: "webservices.dll".}

pragma(lib, "webservices");
extern(Windows)
int WsGetXmlAttribute(
    ptrdiff_t* reader,   // WS_XML_READER*
    WS_XML_STRING* localName,   // WS_XML_STRING*
    ptrdiff_t* heap,   // WS_HEAP*
    ushort** valueChars,   // WORD** optional, out
    uint* valueCharCount,   // DWORD* out
    ptrdiff_t* error   // WS_ERROR* optional
);

ccall((:WsGetXmlAttribute, "webservices.dll"), stdcall, Int32,
      (Ptr{Int}, Ptr{WS_XML_STRING}, Ptr{Int}, Ptr{UInt16}, Ptr{UInt32}, Ptr{Int}),
      reader, localName, heap, valueChars, valueCharCount, error)
# reader : WS_XML_READER* -> Ptr{Int}
# localName : WS_XML_STRING* -> Ptr{WS_XML_STRING}
# heap : WS_HEAP* -> Ptr{Int}
# valueChars : WORD** optional, out -> Ptr{UInt16}
# valueCharCount : DWORD* out -> Ptr{UInt32}
# 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 WsGetXmlAttribute(
    intptr_t* reader,
    void* localName,
    intptr_t* heap,
    uint16_t** valueChars,
    uint32_t* valueCharCount,
    intptr_t* error);
]]
local webservices = ffi.load("webservices")
-- webservices.WsGetXmlAttribute(reader, localName, heap, valueChars, valueCharCount, error)
-- reader : WS_XML_READER*
-- localName : WS_XML_STRING*
-- heap : WS_HEAP*
-- valueChars : WORD** optional, out
-- valueCharCount : DWORD* out
-- 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 WsGetXmlAttribute = lib.func('__stdcall', 'WsGetXmlAttribute', 'int32_t', ['intptr_t *', 'void *', 'intptr_t *', 'uint16_t *', 'uint32_t *', 'intptr_t *']);
// WsGetXmlAttribute(reader, localName, heap, valueChars, valueCharCount, error)
// reader : WS_XML_READER* -> 'intptr_t *'
// localName : WS_XML_STRING* -> 'void *'
// heap : WS_HEAP* -> 'intptr_t *'
// valueChars : WORD** optional, out -> 'uint16_t *'
// valueCharCount : DWORD* out -> 'uint32_t *'
// 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", {
  WsGetXmlAttribute: { parameters: ["pointer", "pointer", "pointer", "pointer", "pointer", "pointer"], result: "i32" },
});
// lib.symbols.WsGetXmlAttribute(reader, localName, heap, valueChars, valueCharCount, error)
// reader : WS_XML_READER* -> "pointer"
// localName : WS_XML_STRING* -> "pointer"
// heap : WS_HEAP* -> "pointer"
// valueChars : WORD** optional, out -> "pointer"
// valueCharCount : DWORD* out -> "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 WsGetXmlAttribute(
    intptr_t* reader,
    void* localName,
    intptr_t* heap,
    uint16_t** valueChars,
    uint32_t* valueCharCount,
    intptr_t* error);
C, "webservices.dll");
// $ffi->WsGetXmlAttribute(reader, localName, heap, valueChars, valueCharCount, error);
// reader : WS_XML_READER*
// localName : WS_XML_STRING*
// heap : WS_HEAP*
// valueChars : WORD** optional, out
// valueCharCount : DWORD* out
// 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 WsGetXmlAttribute(
        LongByReference reader,   // WS_XML_READER*
        Pointer localName,   // WS_XML_STRING*
        LongByReference heap,   // WS_HEAP*
        Pointer valueChars,   // WORD** optional, out
        IntByReference valueCharCount,   // DWORD* out
        LongByReference error   // WS_ERROR* optional
    );
}

@[Link("webservices")]
lib Libwebservices
  fun WsGetXmlAttribute = WsGetXmlAttribute(
    reader : LibC::SSizeT*,   # WS_XML_READER*
    localName : WS_XML_STRING*,   # WS_XML_STRING*
    heap : LibC::SSizeT*,   # WS_HEAP*
    valueChars : UInt16**,   # WORD** optional, out
    valueCharCount : UInt32*,   # DWORD* out
    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 WsGetXmlAttributeNative = Int32 Function(Pointer<IntPtr>, Pointer<Void>, Pointer<IntPtr>, Pointer<Uint16>, Pointer<Uint32>, Pointer<IntPtr>);
typedef WsGetXmlAttributeDart = int Function(Pointer<IntPtr>, Pointer<Void>, Pointer<IntPtr>, Pointer<Uint16>, Pointer<Uint32>, Pointer<IntPtr>);
final WsGetXmlAttribute = DynamicLibrary.open('webservices.dll')
    .lookupFunction<WsGetXmlAttributeNative, WsGetXmlAttributeDart>('WsGetXmlAttribute');
// reader : WS_XML_READER* -> Pointer<IntPtr>
// localName : WS_XML_STRING* -> Pointer<Void>
// heap : WS_HEAP* -> Pointer<IntPtr>
// valueChars : WORD** optional, out -> Pointer<Uint16>
// valueCharCount : DWORD* out -> Pointer<Uint32>
// error : WS_ERROR* optional -> Pointer<IntPtr>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function WsGetXmlAttribute(
  reader: Pointer;   // WS_XML_READER*
  localName: Pointer;   // WS_XML_STRING*
  heap: Pointer;   // WS_HEAP*
  valueChars: Pointer;   // WORD** optional, out
  valueCharCount: Pointer;   // DWORD* out
  error: Pointer   // WS_ERROR* optional
): Integer; stdcall;
  external 'webservices.dll' name 'WsGetXmlAttribute';

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

foreign import stdcall safe "WsGetXmlAttribute"
  c_WsGetXmlAttribute :: Ptr CIntPtr -> Ptr () -> Ptr CIntPtr -> Ptr Word16 -> Ptr Word32 -> Ptr CIntPtr -> IO Int32
-- reader : WS_XML_READER* -> Ptr CIntPtr
-- localName : WS_XML_STRING* -> Ptr ()
-- heap : WS_HEAP* -> Ptr CIntPtr
-- valueChars : WORD** optional, out -> Ptr Word16
-- valueCharCount : DWORD* out -> Ptr Word32
-- 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 wsgetxmlattribute =
  foreign "WsGetXmlAttribute"
    ((ptr intptr_t) @-> (ptr void) @-> (ptr intptr_t) @-> (ptr uint16_t) @-> (ptr uint32_t) @-> (ptr intptr_t) @-> returning int32_t)
(* reader : WS_XML_READER* -> (ptr intptr_t) *)
(* localName : WS_XML_STRING* -> (ptr void) *)
(* heap : WS_HEAP* -> (ptr intptr_t) *)
(* valueChars : WORD** optional, out -> (ptr uint16_t) *)
(* valueCharCount : DWORD* out -> (ptr uint32_t) *)
(* 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 ("WsGetXmlAttribute" ws-get-xml-attribute :convention :stdcall) :int32
  (reader :pointer)   ; WS_XML_READER*
  (local-name :pointer)   ; WS_XML_STRING*
  (heap :pointer)   ; WS_HEAP*
  (value-chars :pointer)   ; WORD** optional, out
  (value-char-count :pointer)   ; DWORD* out
  (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 $WsGetXmlAttribute = Win32::API::More->new('webservices',
    'int WsGetXmlAttribute(LPVOID reader, LPVOID localName, LPVOID heap, LPVOID valueChars, LPVOID valueCharCount, LPVOID error)');
# my $ret = $WsGetXmlAttribute->Call($reader, $localName, $heap, $valueChars, $valueCharCount, $error);
# reader : WS_XML_READER* -> LPVOID
# localName : WS_XML_STRING* -> LPVOID
# heap : WS_HEAP* -> LPVOID
# valueChars : WORD** optional, out -> LPVOID
# valueCharCount : DWORD* out -> 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。