ホーム › NetworkManagement.IpHelper › FreeDnsSettings

FreeDnsSettings

関数

DNS設定構造体に割り当てられたメモリを解放する。

DLLIPHLPAPI.dll呼出規約winapi

シグネチャ

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

void FreeDnsSettings(
    DNS_SETTINGS* Settings
);

パラメーター

名前	型	方向
Settings	DNS_SETTINGS*	inout

戻り値の型: void

各言語での呼び出し定義

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

void FreeDnsSettings(
    DNS_SETTINGS* Settings
);

[DllImport("IPHLPAPI.dll", ExactSpelling = true)]
static extern void FreeDnsSettings(
    IntPtr Settings   // DNS_SETTINGS* in/out
);

<DllImport("IPHLPAPI.dll", ExactSpelling:=True)>
Public Shared Sub FreeDnsSettings(
    Settings As IntPtr   ' DNS_SETTINGS* in/out
)
End Sub

' Settings : DNS_SETTINGS* in/out
Declare PtrSafe Sub FreeDnsSettings Lib "iphlpapi" ( _
    ByVal Settings As LongPtr)
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

FreeDnsSettings = ctypes.windll.iphlpapi.FreeDnsSettings
FreeDnsSettings.restype = None
FreeDnsSettings.argtypes = [
    ctypes.c_void_p,  # Settings : DNS_SETTINGS* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('IPHLPAPI.dll')
FreeDnsSettings = Fiddle::Function.new(
  lib['FreeDnsSettings'],
  [
    Fiddle::TYPE_VOIDP,  # Settings : DNS_SETTINGS* in/out
  ],
  Fiddle::TYPE_VOID)

#[link(name = "iphlpapi")]
extern "system" {
    fn FreeDnsSettings(
        Settings: *mut DNS_SETTINGS  // DNS_SETTINGS* in/out
    );
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("IPHLPAPI.dll")]
public static extern void FreeDnsSettings(IntPtr Settings);
"@
$api = Add-Type -MemberDefinition $sig -Name 'IPHLPAPI_FreeDnsSettings' -Namespace Win32 -PassThru
# $api::FreeDnsSettings(Settings)

#uselib "IPHLPAPI.dll"
#func global FreeDnsSettings "FreeDnsSettings" sptr
; FreeDnsSettings varptr(Settings)
; Settings : DNS_SETTINGS* in/out -> "sptr"

出力引数:

#uselib "IPHLPAPI.dll"
#func global FreeDnsSettings "FreeDnsSettings" var
; FreeDnsSettings Settings
; Settings : DNS_SETTINGS* in/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 "IPHLPAPI.dll"
#func global FreeDnsSettings "FreeDnsSettings" sptr
; FreeDnsSettings varptr(Settings)
; Settings : DNS_SETTINGS* in/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:

; void FreeDnsSettings(DNS_SETTINGS* Settings)
#uselib "IPHLPAPI.dll"
#func global FreeDnsSettings "FreeDnsSettings" var
; FreeDnsSettings Settings
; Settings : DNS_SETTINGS* in/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。; void FreeDnsSettings(DNS_SETTINGS* Settings)
#uselib "IPHLPAPI.dll"
#func global FreeDnsSettings "FreeDnsSettings" intptr
; FreeDnsSettings varptr(Settings)
; Settings : DNS_SETTINGS* in/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 (
	iphlpapi = windows.NewLazySystemDLL("IPHLPAPI.dll")
	procFreeDnsSettings = iphlpapi.NewProc("FreeDnsSettings")
)

// Settings (DNS_SETTINGS* in/out)
r1, _, err := procFreeDnsSettings.Call(
	uintptr(Settings),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // void

procedure FreeDnsSettings(
  Settings: Pointer   // DNS_SETTINGS* in/out
); stdcall;
  external 'IPHLPAPI.dll' name 'FreeDnsSettings';

result := DllCall("IPHLPAPI\FreeDnsSettings"
    , "Ptr", Settings   ; DNS_SETTINGS* in/out
    , "Int")   ; return: void

●FreeDnsSettings(Settings) = DLL("IPHLPAPI.dll", "int FreeDnsSettings(void*)")
# 呼び出し: FreeDnsSettings(Settings)
# Settings : DNS_SETTINGS* in/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)。