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HcnOpenNetwork
関数IDを指定して既存のネットワークを開きハンドルを得る。
シグネチャ
// computenetwork.dll
#include <windows.h>
HRESULT HcnOpenNetwork(
const GUID* Id,
void** Network,
LPWSTR* ErrorRecord // optional
);パラメーター
| 名前 | 型 | 方向 | 説明 |
|---|---|---|---|
| Id | GUID* | in | 開く既存ネットワークを特定するGUIDへのポインタ。 |
| Network | void** | out | 開いたネットワークのハンドルを受け取る出力ポインタ。 |
| ErrorRecord | LPWSTR* | outoptional | 失敗時のエラー詳細をJSONで受け取る文字列ポインタ。NULL可。 |
戻り値の型: HRESULT
各言語での呼び出し定義
// computenetwork.dll
#include <windows.h>
HRESULT HcnOpenNetwork(
const GUID* Id,
void** Network,
LPWSTR* ErrorRecord // optional
);[DllImport("computenetwork.dll", ExactSpelling = true)]
static extern int HcnOpenNetwork(
ref Guid Id, // GUID*
IntPtr Network, // void** out
IntPtr ErrorRecord // LPWSTR* optional, out
);<DllImport("computenetwork.dll", ExactSpelling:=True)>
Public Shared Function HcnOpenNetwork(
ByRef Id As Guid, ' GUID*
Network As IntPtr, ' void** out
ErrorRecord As IntPtr ' LPWSTR* optional, out
) As Integer
End Function' Id : GUID*
' Network : void** out
' ErrorRecord : LPWSTR* optional, out
Declare PtrSafe Function HcnOpenNetwork Lib "computenetwork" ( _
ByVal Id As LongPtr, _
ByVal Network As LongPtr, _
ByVal ErrorRecord 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
HcnOpenNetwork = ctypes.windll.computenetwork.HcnOpenNetwork
HcnOpenNetwork.restype = ctypes.c_int
HcnOpenNetwork.argtypes = [
ctypes.c_void_p, # Id : GUID*
ctypes.c_void_p, # Network : void** out
ctypes.c_void_p, # ErrorRecord : LPWSTR* optional, out
]require 'fiddle'
require 'fiddle/import'
lib = Fiddle.dlopen('computenetwork.dll')
HcnOpenNetwork = Fiddle::Function.new(
lib['HcnOpenNetwork'],
[
Fiddle::TYPE_VOIDP, # Id : GUID*
Fiddle::TYPE_VOIDP, # Network : void** out
Fiddle::TYPE_VOIDP, # ErrorRecord : LPWSTR* optional, out
],
Fiddle::TYPE_INT)#[link(name = "computenetwork")]
extern "system" {
fn HcnOpenNetwork(
Id: *const GUID, // GUID*
Network: *mut *mut (), // void** out
ErrorRecord: *mut *mut u16 // LPWSTR* optional, out
) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.$sig = @"
[DllImport("computenetwork.dll")]
public static extern int HcnOpenNetwork(ref Guid Id, IntPtr Network, IntPtr ErrorRecord);
"@
$api = Add-Type -MemberDefinition $sig -Name 'computenetwork_HcnOpenNetwork' -Namespace Win32 -PassThru
# $api::HcnOpenNetwork(Id, Network, ErrorRecord)#uselib "computenetwork.dll"
#func global HcnOpenNetwork "HcnOpenNetwork" sptr, sptr, sptr
; HcnOpenNetwork varptr(Id), Network, varptr(ErrorRecord) ; 戻り値は stat
; Id : GUID* -> "sptr"
; Network : void** out -> "sptr"
; ErrorRecord : LPWSTR* optional, out -> "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 "computenetwork.dll" #cfunc global HcnOpenNetwork "HcnOpenNetwork" var, sptr, var ; res = HcnOpenNetwork(Id, Network, ErrorRecord) ; Id : GUID* -> "var" ; Network : void** out -> "sptr" ; ErrorRecord : LPWSTR* optional, out -> "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。#uselib "computenetwork.dll" #cfunc global HcnOpenNetwork "HcnOpenNetwork" sptr, sptr, sptr ; res = HcnOpenNetwork(varptr(Id), Network, varptr(ErrorRecord)) ; Id : GUID* -> "sptr" ; Network : void** out -> "sptr" ; ErrorRecord : LPWSTR* optional, out -> "sptr" ; ※出力/バッファ引数はポインタ方式(token=sptr / 呼び出しは varptr(変数))。
出力引数:
; HRESULT HcnOpenNetwork(GUID* Id, void** Network, LPWSTR* ErrorRecord) #uselib "computenetwork.dll" #cfunc global HcnOpenNetwork "HcnOpenNetwork" var, intptr, var ; res = HcnOpenNetwork(Id, Network, ErrorRecord) ; Id : GUID* -> "var" ; Network : void** out -> "intptr" ; ErrorRecord : LPWSTR* optional, out -> "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。; HRESULT HcnOpenNetwork(GUID* Id, void** Network, LPWSTR* ErrorRecord) #uselib "computenetwork.dll" #cfunc global HcnOpenNetwork "HcnOpenNetwork" intptr, intptr, intptr ; res = HcnOpenNetwork(varptr(Id), Network, varptr(ErrorRecord)) ; Id : GUID* -> "intptr" ; Network : void** out -> "intptr" ; ErrorRecord : LPWSTR* optional, out -> "intptr" ; ※出力/バッファ引数はポインタ方式(token=intptr / 呼び出しは varptr(変数))。
import (
"golang.org/x/sys/windows"
"unsafe"
)
var (
computenetwork = windows.NewLazySystemDLL("computenetwork.dll")
procHcnOpenNetwork = computenetwork.NewProc("HcnOpenNetwork")
)
// Id (GUID*), Network (void** out), ErrorRecord (LPWSTR* optional, out)
r1, _, err := procHcnOpenNetwork.Call(
uintptr(Id),
uintptr(Network),
uintptr(ErrorRecord),
)
_ = err // syscall.Errno (valid when the call sets last-error)
_ = r1 // HRESULTfunction HcnOpenNetwork(
Id: PGUID; // GUID*
Network: Pointer; // void** out
ErrorRecord: PPWideChar // LPWSTR* optional, out
): Integer; stdcall;
external 'computenetwork.dll' name 'HcnOpenNetwork';result := DllCall("computenetwork\HcnOpenNetwork"
, "Ptr", Id ; GUID*
, "Ptr", Network ; void** out
, "Ptr", ErrorRecord ; LPWSTR* optional, out
, "Int") ; return: HRESULT●HcnOpenNetwork(Id, Network, ErrorRecord) = DLL("computenetwork.dll", "int HcnOpenNetwork(void*, void*, void*)")
# 呼び出し: HcnOpenNetwork(Id, Network, ErrorRecord)
# Id : GUID* -> "void*"
# Network : void** out -> "void*"
# ErrorRecord : LPWSTR* optional, out -> "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 "computenetwork" fn HcnOpenNetwork(
Id: [*c]GUID, // GUID*
Network: ?*anyopaque, // void** out
ErrorRecord: [*c][*c]u16 // LPWSTR* optional, out
) callconv(std.os.windows.WINAPI) i32;proc HcnOpenNetwork(
Id: ptr GUID, # GUID*
Network: pointer, # void** out
ErrorRecord: ptr WideCString # LPWSTR* optional, out
): int32 {.importc: "HcnOpenNetwork", stdcall, dynlib: "computenetwork.dll".}pragma(lib, "computenetwork");
extern(Windows)
int HcnOpenNetwork(
GUID* Id, // GUID*
void** Network, // void** out
wchar** ErrorRecord // LPWSTR* optional, out
);ccall((:HcnOpenNetwork, "computenetwork.dll"), stdcall, Int32,
(Ptr{GUID}, Ptr{Cvoid}, Ptr{Ptr{UInt16}}),
Id, Network, ErrorRecord)
# Id : GUID* -> Ptr{GUID}
# Network : void** out -> Ptr{Cvoid}
# ErrorRecord : LPWSTR* optional, out -> Ptr{Ptr{UInt16}}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。local ffi = require("ffi")
ffi.cdef[[
int32_t HcnOpenNetwork(
void* Id,
void** Network,
uint16_t** ErrorRecord);
]]
local computenetwork = ffi.load("computenetwork")
-- computenetwork.HcnOpenNetwork(Id, Network, ErrorRecord)
-- Id : GUID*
-- Network : void** out
-- ErrorRecord : LPWSTR* optional, out
-- 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('computenetwork.dll');
const HcnOpenNetwork = lib.func('__stdcall', 'HcnOpenNetwork', 'int32_t', ['void *', 'void *', 'void *']);
// HcnOpenNetwork(Id, Network, ErrorRecord)
// Id : GUID* -> 'void *'
// Network : void** out -> 'void *'
// ErrorRecord : LPWSTR* optional, out -> 'void *'
// 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("computenetwork.dll", {
HcnOpenNetwork: { parameters: ["pointer", "pointer", "pointer"], result: "i32" },
});
// lib.symbols.HcnOpenNetwork(Id, Network, ErrorRecord)
// Id : GUID* -> "pointer"
// Network : void** out -> "pointer"
// ErrorRecord : LPWSTR* optional, out -> "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 HcnOpenNetwork(
void* Id,
void** Network,
uint16_t** ErrorRecord);
C, "computenetwork.dll");
// $ffi->HcnOpenNetwork(Id, Network, ErrorRecord);
// Id : GUID*
// Network : void** out
// ErrorRecord : LPWSTR* optional, out
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;
public interface Computenetwork extends StdCallLibrary {
Computenetwork INSTANCE = Native.load("computenetwork", Computenetwork.class);
int HcnOpenNetwork(
Pointer Id, // GUID*
Pointer Network, // void** out
PointerByReference ErrorRecord // LPWSTR* optional, out
);
}@[Link("computenetwork")]
lib Libcomputenetwork
fun HcnOpenNetwork = HcnOpenNetwork(
Id : GUID*, # GUID*
Network : Void**, # void** out
ErrorRecord : UInt16** # LPWSTR* optional, out
) : Int32
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。import 'dart:ffi';
import 'package:ffi/ffi.dart';
typedef HcnOpenNetworkNative = Int32 Function(Pointer<Void>, Pointer<Void>, Pointer<Pointer<Utf16>>);
typedef HcnOpenNetworkDart = int Function(Pointer<Void>, Pointer<Void>, Pointer<Pointer<Utf16>>);
final HcnOpenNetwork = DynamicLibrary.open('computenetwork.dll')
.lookupFunction<HcnOpenNetworkNative, HcnOpenNetworkDart>('HcnOpenNetwork');
// Id : GUID* -> Pointer<Void>
// Network : void** out -> Pointer<Void>
// ErrorRecord : LPWSTR* optional, out -> Pointer<Pointer<Utf16>>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。{$mode objfpc}{$H+}
function HcnOpenNetwork(
Id: PGUID; // GUID*
Network: Pointer; // void** out
ErrorRecord: PPWideChar // LPWSTR* optional, out
): Integer; stdcall;
external 'computenetwork.dll' name 'HcnOpenNetwork';import Foreign
import Foreign.C.Types
import Foreign.C.String
foreign import stdcall safe "HcnOpenNetwork"
c_HcnOpenNetwork :: Ptr () -> Ptr () -> Ptr CWString -> IO Int32
-- Id : GUID* -> Ptr ()
-- Network : void** out -> Ptr ()
-- ErrorRecord : LPWSTR* optional, out -> Ptr CWString
-- 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 hcnopennetwork =
foreign "HcnOpenNetwork"
((ptr void) @-> (ptr void) @-> (ptr (ptr uint16_t)) @-> returning int32_t)
(* Id : GUID* -> (ptr void) *)
(* Network : void** out -> (ptr void) *)
(* ErrorRecord : LPWSTR* optional, out -> (ptr (ptr uint16_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 computenetwork (t "computenetwork.dll"))
(cffi:use-foreign-library computenetwork)
(cffi:defcfun ("HcnOpenNetwork" hcn-open-network :convention :stdcall) :int32
(id :pointer) ; GUID*
(network :pointer) ; void** out
(error-record :pointer)) ; LPWSTR* optional, out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。use Win32::API;
my $HcnOpenNetwork = Win32::API::More->new('computenetwork',
'int HcnOpenNetwork(LPVOID Id, LPVOID Network, LPVOID ErrorRecord)');
# my $ret = $HcnOpenNetwork->Call($Id, $Network, $ErrorRecord);
# Id : GUID* -> LPVOID
# Network : void** out -> LPVOID
# ErrorRecord : LPWSTR* optional, out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。