WsGetPolicyAlternativeCount

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

HRESULT WsGetPolicyAlternativeCount(
    WS_POLICY* policy,
    DWORD* count,
    WS_ERROR* error   // optional
);

<DllImport("webservices.dll", ExactSpelling:=True)>
Public Shared Function WsGetPolicyAlternativeCount(
    ByRef policy As IntPtr,   ' WS_POLICY*
    <Out> ByRef count As UInteger,   ' DWORD* out
    [error] As IntPtr   ' WS_ERROR* optional
) As Integer
End Function

' policy : WS_POLICY*
' count : DWORD* out
' error : WS_ERROR* optional
Declare PtrSafe Function WsGetPolicyAlternativeCount Lib "webservices" ( _
    ByRef policy As LongPtr, _
    ByRef count 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

WsGetPolicyAlternativeCount = ctypes.windll.webservices.WsGetPolicyAlternativeCount
WsGetPolicyAlternativeCount.restype = ctypes.c_int
WsGetPolicyAlternativeCount.argtypes = [
    ctypes.c_void_p,  # policy : WS_POLICY*
    ctypes.POINTER(wintypes.DWORD),  # count : DWORD* out
    ctypes.c_void_p,  # error : WS_ERROR* optional
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('webservices.dll')
WsGetPolicyAlternativeCount = Fiddle::Function.new(
  lib['WsGetPolicyAlternativeCount'],
  [
    Fiddle::TYPE_VOIDP,  # policy : WS_POLICY*
    Fiddle::TYPE_VOIDP,  # count : DWORD* out
    Fiddle::TYPE_VOIDP,  # error : WS_ERROR* optional
  ],
  Fiddle::TYPE_INT)

#[link(name = "webservices")]
extern "system" {
    fn WsGetPolicyAlternativeCount(
        policy: *mut isize,  // WS_POLICY*
        count: *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 WsGetPolicyAlternativeCount(ref IntPtr policy, out uint count, IntPtr error);
"@
$api = Add-Type -MemberDefinition $sig -Name 'webservices_WsGetPolicyAlternativeCount' -Namespace Win32 -PassThru
# $api::WsGetPolicyAlternativeCount(policy, count, error)

#uselib "webservices.dll"
#func global WsGetPolicyAlternativeCount "WsGetPolicyAlternativeCount" sptr, sptr, sptr
; WsGetPolicyAlternativeCount varptr(policy), varptr(count), varptr(error)   ; 戻り値は stat
; policy : WS_POLICY* -> "sptr"
; count : 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")
	procWsGetPolicyAlternativeCount = webservices.NewProc("WsGetPolicyAlternativeCount")
)

// policy (WS_POLICY*), count (DWORD* out), error (WS_ERROR* optional)
r1, _, err := procWsGetPolicyAlternativeCount.Call(
	uintptr(policy),
	uintptr(count),
	uintptr(error),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function WsGetPolicyAlternativeCount(
  policy: Pointer;   // WS_POLICY*
  count: Pointer;   // DWORD* out
  error: Pointer   // WS_ERROR* optional
): Integer; stdcall;
  external 'webservices.dll' name 'WsGetPolicyAlternativeCount';

result := DllCall("webservices\WsGetPolicyAlternativeCount"
    , "Ptr", policy   ; WS_POLICY*
    , "Ptr", count   ; DWORD* out
    , "Ptr", error   ; WS_ERROR* optional
    , "Int")   ; return: HRESULT

●WsGetPolicyAlternativeCount(policy, count, error) = DLL("webservices.dll", "int WsGetPolicyAlternativeCount(void*, void*, void*)")
# 呼び出し: WsGetPolicyAlternativeCount(policy, count, error)
# policy : WS_POLICY* -> "void*"
# count : 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 WsGetPolicyAlternativeCount(
    policy: [*c]isize, // WS_POLICY*
    count: [*c]u32, // DWORD* out
    error: [*c]isize // WS_ERROR* optional
) callconv(std.os.windows.WINAPI) i32;

proc WsGetPolicyAlternativeCount(
    policy: ptr int,  # WS_POLICY*
    count: ptr uint32,  # DWORD* out
    error: ptr int  # WS_ERROR* optional
): int32 {.importc: "WsGetPolicyAlternativeCount", stdcall, dynlib: "webservices.dll".}

pragma(lib, "webservices");
extern(Windows)
int WsGetPolicyAlternativeCount(
    ptrdiff_t* policy,   // WS_POLICY*
    uint* count,   // DWORD* out
    ptrdiff_t* error   // WS_ERROR* optional
);

ccall((:WsGetPolicyAlternativeCount, "webservices.dll"), stdcall, Int32,
      (Ptr{Int}, Ptr{UInt32}, Ptr{Int}),
      policy, count, error)
# policy : WS_POLICY* -> Ptr{Int}
# count : 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 WsGetPolicyAlternativeCount(
    intptr_t* policy,
    uint32_t* count,
    intptr_t* error);
]]
local webservices = ffi.load("webservices")
-- webservices.WsGetPolicyAlternativeCount(policy, count, error)
-- policy : WS_POLICY*
-- count : 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 WsGetPolicyAlternativeCount = lib.func('__stdcall', 'WsGetPolicyAlternativeCount', 'int32_t', ['intptr_t *', 'uint32_t *', 'intptr_t *']);
// WsGetPolicyAlternativeCount(policy, count, error)
// policy : WS_POLICY* -> 'intptr_t *'
// count : 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", {
  WsGetPolicyAlternativeCount: { parameters: ["pointer", "pointer", "pointer"], result: "i32" },
});
// lib.symbols.WsGetPolicyAlternativeCount(policy, count, error)
// policy : WS_POLICY* -> "pointer"
// count : 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 WsGetPolicyAlternativeCount(
    intptr_t* policy,
    uint32_t* count,
    intptr_t* error);
C, "webservices.dll");
// $ffi->WsGetPolicyAlternativeCount(policy, count, error);
// policy : WS_POLICY*
// count : 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 WsGetPolicyAlternativeCount(
        LongByReference policy,   // WS_POLICY*
        IntByReference count,   // DWORD* out
        LongByReference error   // WS_ERROR* optional
    );
}

@[Link("webservices")]
lib Libwebservices
  fun WsGetPolicyAlternativeCount = WsGetPolicyAlternativeCount(
    policy : LibC::SSizeT*,   # WS_POLICY*
    count : 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 WsGetPolicyAlternativeCountNative = Int32 Function(Pointer<IntPtr>, Pointer<Uint32>, Pointer<IntPtr>);
typedef WsGetPolicyAlternativeCountDart = int Function(Pointer<IntPtr>, Pointer<Uint32>, Pointer<IntPtr>);
final WsGetPolicyAlternativeCount = DynamicLibrary.open('webservices.dll')
    .lookupFunction<WsGetPolicyAlternativeCountNative, WsGetPolicyAlternativeCountDart>('WsGetPolicyAlternativeCount');
// policy : WS_POLICY* -> Pointer<IntPtr>
// count : 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 WsGetPolicyAlternativeCount(
  policy: Pointer;   // WS_POLICY*
  count: Pointer;   // DWORD* out
  error: Pointer   // WS_ERROR* optional
): Integer; stdcall;
  external 'webservices.dll' name 'WsGetPolicyAlternativeCount';

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

foreign import stdcall safe "WsGetPolicyAlternativeCount"
  c_WsGetPolicyAlternativeCount :: Ptr CIntPtr -> Ptr Word32 -> Ptr CIntPtr -> IO Int32
-- policy : WS_POLICY* -> Ptr CIntPtr
-- count : 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 wsgetpolicyalternativecount =
  foreign "WsGetPolicyAlternativeCount"
    ((ptr intptr_t) @-> (ptr uint32_t) @-> (ptr intptr_t) @-> returning int32_t)
(* policy : WS_POLICY* -> (ptr intptr_t) *)
(* count : 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 ("WsGetPolicyAlternativeCount" ws-get-policy-alternative-count :convention :stdcall) :int32
  (policy :pointer)   ; WS_POLICY*
  (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 $WsGetPolicyAlternativeCount = Win32::API::More->new('webservices',
    'int WsGetPolicyAlternativeCount(LPVOID policy, LPVOID count, LPVOID error)');
# my $ret = $WsGetPolicyAlternativeCount->Call($policy, $count, $error);
# policy : WS_POLICY* -> LPVOID
# count : 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。