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IsDestinationReachableA
関数指定宛先への到達可能性を確認する(ANSI版)。
シグネチャ
// SensApi.dll (ANSI / -A)
#include <windows.h>
BOOL IsDestinationReachableA(
LPCSTR lpszDestination,
QOCINFO* lpQOCInfo
);パラメーター
| 名前 | 型 | 方向 | 説明 |
|---|---|---|---|
| lpszDestination | LPCSTR | in | 到達可否を判定する宛先のホスト名・IP・URL等の文字列(ANSI)。 |
| lpQOCInfo | QOCINFO* | inout | 接続の品質情報を受け取るQOCINFO構造体へのポインタ。NULL可で可否のみ判定する。 |
戻り値の型: BOOL
各言語での呼び出し定義
// SensApi.dll (ANSI / -A)
#include <windows.h>
BOOL IsDestinationReachableA(
LPCSTR lpszDestination,
QOCINFO* lpQOCInfo
);[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("SensApi.dll", CharSet = CharSet.Ansi, SetLastError = true, ExactSpelling = true)]
static extern bool IsDestinationReachableA(
[MarshalAs(UnmanagedType.LPStr)] string lpszDestination, // LPCSTR
IntPtr lpQOCInfo // QOCINFO* in/out
);<DllImport("SensApi.dll", CharSet:=CharSet.Ansi, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function IsDestinationReachableA(
<MarshalAs(UnmanagedType.LPStr)> lpszDestination As String, ' LPCSTR
lpQOCInfo As IntPtr ' QOCINFO* in/out
) As <MarshalAs(UnmanagedType.Bool)> Boolean
End Function' lpszDestination : LPCSTR
' lpQOCInfo : QOCINFO* in/out
Declare PtrSafe Function IsDestinationReachableA Lib "sensapi" ( _
ByVal lpszDestination As String, _
ByVal lpQOCInfo 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
IsDestinationReachableA = ctypes.windll.sensapi.IsDestinationReachableA
IsDestinationReachableA.restype = wintypes.BOOL
IsDestinationReachableA.argtypes = [
wintypes.LPCSTR, # lpszDestination : LPCSTR
ctypes.c_void_p, # lpQOCInfo : QOCINFO* in/out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))require 'fiddle'
require 'fiddle/import'
lib = Fiddle.dlopen('SensApi.dll')
IsDestinationReachableA = Fiddle::Function.new(
lib['IsDestinationReachableA'],
[
Fiddle::TYPE_VOIDP, # lpszDestination : LPCSTR
Fiddle::TYPE_VOIDP, # lpQOCInfo : QOCINFO* in/out
],
Fiddle::TYPE_INT)#[link(name = "sensapi")]
extern "system" {
fn IsDestinationReachableA(
lpszDestination: *const u8, // LPCSTR
lpQOCInfo: *mut QOCINFO // QOCINFO* in/out
) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("SensApi.dll", CharSet = CharSet.Ansi, SetLastError = true)]
public static extern bool IsDestinationReachableA([MarshalAs(UnmanagedType.LPStr)] string lpszDestination, IntPtr lpQOCInfo);
"@
$api = Add-Type -MemberDefinition $sig -Name 'SensApi_IsDestinationReachableA' -Namespace Win32 -PassThru
# $api::IsDestinationReachableA(lpszDestination, lpQOCInfo)#uselib "SensApi.dll"
#func global IsDestinationReachableA "IsDestinationReachableA" sptr, sptr
; IsDestinationReachableA lpszDestination, varptr(lpQOCInfo) ; 戻り値は stat
; lpszDestination : LPCSTR -> "sptr"
; lpQOCInfo : QOCINFO* in/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 "SensApi.dll" #cfunc global IsDestinationReachableA "IsDestinationReachableA" str, var ; res = IsDestinationReachableA(lpszDestination, lpQOCInfo) ; lpszDestination : LPCSTR -> "str" ; lpQOCInfo : QOCINFO* 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 "SensApi.dll" #cfunc global IsDestinationReachableA "IsDestinationReachableA" str, sptr ; res = IsDestinationReachableA(lpszDestination, varptr(lpQOCInfo)) ; lpszDestination : LPCSTR -> "str" ; lpQOCInfo : QOCINFO* 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:
; BOOL IsDestinationReachableA(LPCSTR lpszDestination, QOCINFO* lpQOCInfo) #uselib "SensApi.dll" #cfunc global IsDestinationReachableA "IsDestinationReachableA" str, var ; res = IsDestinationReachableA(lpszDestination, lpQOCInfo) ; lpszDestination : LPCSTR -> "str" ; lpQOCInfo : QOCINFO* 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。; BOOL IsDestinationReachableA(LPCSTR lpszDestination, QOCINFO* lpQOCInfo) #uselib "SensApi.dll" #cfunc global IsDestinationReachableA "IsDestinationReachableA" str, intptr ; res = IsDestinationReachableA(lpszDestination, varptr(lpQOCInfo)) ; lpszDestination : LPCSTR -> "str" ; lpQOCInfo : QOCINFO* 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 (
sensapi = windows.NewLazySystemDLL("SensApi.dll")
procIsDestinationReachableA = sensapi.NewProc("IsDestinationReachableA")
)
// lpszDestination (LPCSTR), lpQOCInfo (QOCINFO* in/out)
r1, _, err := procIsDestinationReachableA.Call(
uintptr(unsafe.Pointer(windows.BytePtrFromString(lpszDestination))),
uintptr(lpQOCInfo),
)
_ = err // syscall.Errno (valid when the call sets last-error)
_ = r1 // BOOLfunction IsDestinationReachableA(
lpszDestination: PAnsiChar; // LPCSTR
lpQOCInfo: Pointer // QOCINFO* in/out
): BOOL; stdcall;
external 'SensApi.dll' name 'IsDestinationReachableA';result := DllCall("SensApi\IsDestinationReachableA"
, "AStr", lpszDestination ; LPCSTR
, "Ptr", lpQOCInfo ; QOCINFO* in/out
, "Int") ; return: BOOL●IsDestinationReachableA(lpszDestination, lpQOCInfo) = DLL("SensApi.dll", "bool IsDestinationReachableA(char*, void*)")
# 呼び出し: IsDestinationReachableA(lpszDestination, lpQOCInfo)
# lpszDestination : LPCSTR -> "char*"
# lpQOCInfo : QOCINFO* 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)。const std = @import("std");
extern "sensapi" fn IsDestinationReachableA(
lpszDestination: [*c]const u8, // LPCSTR
lpQOCInfo: [*c]QOCINFO // QOCINFO* in/out
) callconv(std.os.windows.WINAPI) i32;proc IsDestinationReachableA(
lpszDestination: cstring, # LPCSTR
lpQOCInfo: ptr QOCINFO # QOCINFO* in/out
): int32 {.importc: "IsDestinationReachableA", stdcall, dynlib: "SensApi.dll".}pragma(lib, "sensapi");
extern(Windows)
int IsDestinationReachableA(
const(char)* lpszDestination, // LPCSTR
QOCINFO* lpQOCInfo // QOCINFO* in/out
);ccall((:IsDestinationReachableA, "SensApi.dll"), stdcall, Int32,
(Cstring, Ptr{QOCINFO}),
lpszDestination, lpQOCInfo)
# lpszDestination : LPCSTR -> Cstring
# lpQOCInfo : QOCINFO* in/out -> Ptr{QOCINFO}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。local ffi = require("ffi")
ffi.cdef[[
int32_t IsDestinationReachableA(
const char* lpszDestination,
void* lpQOCInfo);
]]
local sensapi = ffi.load("sensapi")
-- sensapi.IsDestinationReachableA(lpszDestination, lpQOCInfo)
-- lpszDestination : LPCSTR
-- lpQOCInfo : QOCINFO* in/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('SensApi.dll');
const IsDestinationReachableA = lib.func('__stdcall', 'IsDestinationReachableA', 'int32_t', ['str', 'void *']);
// IsDestinationReachableA(lpszDestination, lpQOCInfo)
// lpszDestination : LPCSTR -> 'str'
// lpQOCInfo : QOCINFO* in/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("SensApi.dll", {
IsDestinationReachableA: { parameters: ["buffer", "pointer"], result: "i32" },
});
// lib.symbols.IsDestinationReachableA(lpszDestination, lpQOCInfo)
// lpszDestination : LPCSTR -> "buffer"
// lpQOCInfo : QOCINFO* in/out -> "pointer"
// 文字列は "buffer"。ANSI(-A) は new TextEncoder() で UTF-8/ANSI バイト列(末尾に \x00)を渡す。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。<?php
$ffi = FFI::cdef(<<<C
int32_t IsDestinationReachableA(
const char* lpszDestination,
void* lpQOCInfo);
C, "SensApi.dll");
// $ffi->IsDestinationReachableA(lpszDestination, lpQOCInfo);
// lpszDestination : LPCSTR
// lpQOCInfo : QOCINFO* in/out
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;
public interface Sensapi extends StdCallLibrary {
Sensapi INSTANCE = Native.load("sensapi", Sensapi.class, W32APIOptions.ASCII_OPTIONS);
boolean IsDestinationReachableA(
String lpszDestination, // LPCSTR
Pointer lpQOCInfo // QOCINFO* in/out
);
}@[Link("sensapi")]
lib LibSensApi
fun IsDestinationReachableA = IsDestinationReachableA(
lpszDestination : UInt8*, # LPCSTR
lpQOCInfo : QOCINFO* # QOCINFO* in/out
) : Int32
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。import 'dart:ffi';
import 'package:ffi/ffi.dart';
typedef IsDestinationReachableANative = Int32 Function(Pointer<Utf8>, Pointer<Void>);
typedef IsDestinationReachableADart = int Function(Pointer<Utf8>, Pointer<Void>);
final IsDestinationReachableA = DynamicLibrary.open('SensApi.dll')
.lookupFunction<IsDestinationReachableANative, IsDestinationReachableADart>('IsDestinationReachableA');
// lpszDestination : LPCSTR -> Pointer<Utf8>
// lpQOCInfo : QOCINFO* in/out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。{$mode objfpc}{$H+}
function IsDestinationReachableA(
lpszDestination: PAnsiChar; // LPCSTR
lpQOCInfo: Pointer // QOCINFO* in/out
): BOOL; stdcall;
external 'SensApi.dll' name 'IsDestinationReachableA';import Foreign
import Foreign.C.Types
import Foreign.C.String
foreign import stdcall safe "IsDestinationReachableA"
c_IsDestinationReachableA :: CString -> Ptr () -> IO CInt
-- lpszDestination : LPCSTR -> CString
-- lpQOCInfo : QOCINFO* in/out -> Ptr ()
-- 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 isdestinationreachablea =
foreign "IsDestinationReachableA"
(string @-> (ptr void) @-> returning int32_t)
(* lpszDestination : LPCSTR -> string *)
(* lpQOCInfo : QOCINFO* in/out -> (ptr void) *)
(* 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 sensapi (t "SensApi.dll"))
(cffi:use-foreign-library sensapi)
(cffi:defcfun ("IsDestinationReachableA" is-destination-reachable-a :convention :stdcall) :int32
(lpsz-destination :string) ; LPCSTR
(lp-qocinfo :pointer)) ; QOCINFO* in/out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。use Win32::API;
my $IsDestinationReachableA = Win32::API::More->new('SensApi',
'BOOL IsDestinationReachableA(LPCSTR lpszDestination, LPVOID lpQOCInfo)');
# my $ret = $IsDestinationReachableA->Call($lpszDestination, $lpQOCInfo);
# lpszDestination : LPCSTR -> LPCSTR
# lpQOCInfo : QOCINFO* in/out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。関連項目
文字セット違い
- f IsDestinationReachableW (Unicode版) — 指定宛先への到達可能性を確認する(Unicode版)。
使用する型