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HcnEnumerateGuestNetworkPortReservations

関数

ゲストネットワークのポート予約一覧を列挙する。

シグネチャ

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

HRESULT HcnEnumerateGuestNetworkPortReservations(
    DWORD* ReturnCount,
    HCN_PORT_RANGE_ENTRY** PortEntries
);

パラメーター

名前	型	方向
ReturnCount	DWORD*	out
PortEntries	HCN_PORT_RANGE_ENTRY**	out

戻り値の型: HRESULT

各言語での呼び出し定義

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

HRESULT HcnEnumerateGuestNetworkPortReservations(
    DWORD* ReturnCount,
    HCN_PORT_RANGE_ENTRY** PortEntries
);

[DllImport("computenetwork.dll", ExactSpelling = true)]
static extern int HcnEnumerateGuestNetworkPortReservations(
    out uint ReturnCount,   // DWORD* out
    IntPtr PortEntries   // HCN_PORT_RANGE_ENTRY** out
);

<DllImport("computenetwork.dll", ExactSpelling:=True)>
Public Shared Function HcnEnumerateGuestNetworkPortReservations(
    <Out> ByRef ReturnCount As UInteger,   ' DWORD* out
    PortEntries As IntPtr   ' HCN_PORT_RANGE_ENTRY** out
) As Integer
End Function

' ReturnCount : DWORD* out
' PortEntries : HCN_PORT_RANGE_ENTRY** out
Declare PtrSafe Function HcnEnumerateGuestNetworkPortReservations Lib "computenetwork" ( _
    ByRef ReturnCount As Long, _
    ByVal PortEntries 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

HcnEnumerateGuestNetworkPortReservations = ctypes.windll.computenetwork.HcnEnumerateGuestNetworkPortReservations
HcnEnumerateGuestNetworkPortReservations.restype = ctypes.c_int
HcnEnumerateGuestNetworkPortReservations.argtypes = [
    ctypes.POINTER(wintypes.DWORD),  # ReturnCount : DWORD* out
    ctypes.c_void_p,  # PortEntries : HCN_PORT_RANGE_ENTRY** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('computenetwork.dll')
HcnEnumerateGuestNetworkPortReservations = Fiddle::Function.new(
  lib['HcnEnumerateGuestNetworkPortReservations'],
  [
    Fiddle::TYPE_VOIDP,  # ReturnCount : DWORD* out
    Fiddle::TYPE_VOIDP,  # PortEntries : HCN_PORT_RANGE_ENTRY** out
  ],
  Fiddle::TYPE_INT)

#[link(name = "computenetwork")]
extern "system" {
    fn HcnEnumerateGuestNetworkPortReservations(
        ReturnCount: *mut u32,  // DWORD* out
        PortEntries: *mut *mut HCN_PORT_RANGE_ENTRY  // HCN_PORT_RANGE_ENTRY** out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("computenetwork.dll")]
public static extern int HcnEnumerateGuestNetworkPortReservations(out uint ReturnCount, IntPtr PortEntries);
"@
$api = Add-Type -MemberDefinition $sig -Name 'computenetwork_HcnEnumerateGuestNetworkPortReservations' -Namespace Win32 -PassThru
# $api::HcnEnumerateGuestNetworkPortReservations(ReturnCount, PortEntries)

#uselib "computenetwork.dll"
#func global HcnEnumerateGuestNetworkPortReservations "HcnEnumerateGuestNetworkPortReservations" sptr, sptr
; HcnEnumerateGuestNetworkPortReservations varptr(ReturnCount), varptr(PortEntries)   ; 戻り値は stat
; ReturnCount : DWORD* out -> "sptr"
; PortEntries : HCN_PORT_RANGE_ENTRY** 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 HcnEnumerateGuestNetworkPortReservations "HcnEnumerateGuestNetworkPortReservations" var, var
; res = HcnEnumerateGuestNetworkPortReservations(ReturnCount, PortEntries)
; ReturnCount : DWORD* out -> "var"
; PortEntries : HCN_PORT_RANGE_ENTRY** 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 HcnEnumerateGuestNetworkPortReservations "HcnEnumerateGuestNetworkPortReservations" sptr, sptr
; res = HcnEnumerateGuestNetworkPortReservations(varptr(ReturnCount), varptr(PortEntries))
; ReturnCount : DWORD* out -> "sptr"
; PortEntries : HCN_PORT_RANGE_ENTRY** 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 HcnEnumerateGuestNetworkPortReservations(DWORD* ReturnCount, HCN_PORT_RANGE_ENTRY** PortEntries)
#uselib "computenetwork.dll"
#cfunc global HcnEnumerateGuestNetworkPortReservations "HcnEnumerateGuestNetworkPortReservations" var, var
; res = HcnEnumerateGuestNetworkPortReservations(ReturnCount, PortEntries)
; ReturnCount : DWORD* out -> "var"
; PortEntries : HCN_PORT_RANGE_ENTRY** 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 HcnEnumerateGuestNetworkPortReservations(DWORD* ReturnCount, HCN_PORT_RANGE_ENTRY** PortEntries)
#uselib "computenetwork.dll"
#cfunc global HcnEnumerateGuestNetworkPortReservations "HcnEnumerateGuestNetworkPortReservations" intptr, intptr
; res = HcnEnumerateGuestNetworkPortReservations(varptr(ReturnCount), varptr(PortEntries))
; ReturnCount : DWORD* out -> "intptr"
; PortEntries : HCN_PORT_RANGE_ENTRY** 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")
	procHcnEnumerateGuestNetworkPortReservations = computenetwork.NewProc("HcnEnumerateGuestNetworkPortReservations")
)

// ReturnCount (DWORD* out), PortEntries (HCN_PORT_RANGE_ENTRY** out)
r1, _, err := procHcnEnumerateGuestNetworkPortReservations.Call(
	uintptr(ReturnCount),
	uintptr(PortEntries),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function HcnEnumerateGuestNetworkPortReservations(
  ReturnCount: Pointer;   // DWORD* out
  PortEntries: Pointer   // HCN_PORT_RANGE_ENTRY** out
): Integer; stdcall;
  external 'computenetwork.dll' name 'HcnEnumerateGuestNetworkPortReservations';

result := DllCall("computenetwork\HcnEnumerateGuestNetworkPortReservations"
    , "Ptr", ReturnCount   ; DWORD* out
    , "Ptr", PortEntries   ; HCN_PORT_RANGE_ENTRY** out
    , "Int")   ; return: HRESULT

●HcnEnumerateGuestNetworkPortReservations(ReturnCount, PortEntries) = DLL("computenetwork.dll", "int HcnEnumerateGuestNetworkPortReservations(void*, void*)")
# 呼び出し: HcnEnumerateGuestNetworkPortReservations(ReturnCount, PortEntries)
# ReturnCount : DWORD* out -> "void*"
# PortEntries : HCN_PORT_RANGE_ENTRY** 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)。