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NPGetConnectionPerformance

関数

リモート接続の性能情報をプロバイダーから取得する。

DLLNTLANMAN.dll呼出規約winapi対応OSWindows XP 以降

シグネチャ

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

DWORD NPGetConnectionPerformance(
    LPCWSTR lpRemoteName,
    NETCONNECTINFOSTRUCT* lpNetConnectInfo
);

パラメーター

名前	型	方向
lpRemoteName	LPCWSTR	in
lpNetConnectInfo	NETCONNECTINFOSTRUCT*	out

戻り値の型: DWORD

各言語での呼び出し定義

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

DWORD NPGetConnectionPerformance(
    LPCWSTR lpRemoteName,
    NETCONNECTINFOSTRUCT* lpNetConnectInfo
);

[DllImport("NTLANMAN.dll", ExactSpelling = true)]
static extern uint NPGetConnectionPerformance(
    [MarshalAs(UnmanagedType.LPWStr)] string lpRemoteName,   // LPCWSTR
    IntPtr lpNetConnectInfo   // NETCONNECTINFOSTRUCT* out
);

<DllImport("NTLANMAN.dll", ExactSpelling:=True)>
Public Shared Function NPGetConnectionPerformance(
    <MarshalAs(UnmanagedType.LPWStr)> lpRemoteName As String,   ' LPCWSTR
    lpNetConnectInfo As IntPtr   ' NETCONNECTINFOSTRUCT* out
) As UInteger
End Function

' lpRemoteName : LPCWSTR
' lpNetConnectInfo : NETCONNECTINFOSTRUCT* out
Declare PtrSafe Function NPGetConnectionPerformance Lib "ntlanman" ( _
    ByVal lpRemoteName As LongPtr, _
    ByVal lpNetConnectInfo 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

NPGetConnectionPerformance = ctypes.windll.ntlanman.NPGetConnectionPerformance
NPGetConnectionPerformance.restype = wintypes.DWORD
NPGetConnectionPerformance.argtypes = [
    wintypes.LPCWSTR,  # lpRemoteName : LPCWSTR
    ctypes.c_void_p,  # lpNetConnectInfo : NETCONNECTINFOSTRUCT* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('NTLANMAN.dll')
NPGetConnectionPerformance = Fiddle::Function.new(
  lib['NPGetConnectionPerformance'],
  [
    Fiddle::TYPE_VOIDP,  # lpRemoteName : LPCWSTR
    Fiddle::TYPE_VOIDP,  # lpNetConnectInfo : NETCONNECTINFOSTRUCT* out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "ntlanman")]
extern "system" {
    fn NPGetConnectionPerformance(
        lpRemoteName: *const u16,  // LPCWSTR
        lpNetConnectInfo: *mut NETCONNECTINFOSTRUCT  // NETCONNECTINFOSTRUCT* out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("NTLANMAN.dll")]
public static extern uint NPGetConnectionPerformance([MarshalAs(UnmanagedType.LPWStr)] string lpRemoteName, IntPtr lpNetConnectInfo);
"@
$api = Add-Type -MemberDefinition $sig -Name 'NTLANMAN_NPGetConnectionPerformance' -Namespace Win32 -PassThru
# $api::NPGetConnectionPerformance(lpRemoteName, lpNetConnectInfo)

#uselib "NTLANMAN.dll"
#func global NPGetConnectionPerformance "NPGetConnectionPerformance" sptr, sptr
; NPGetConnectionPerformance lpRemoteName, varptr(lpNetConnectInfo)   ; 戻り値は stat
; lpRemoteName : LPCWSTR -> "sptr"
; lpNetConnectInfo : NETCONNECTINFOSTRUCT* 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 "NTLANMAN.dll"
#cfunc global NPGetConnectionPerformance "NPGetConnectionPerformance" wstr, var
; res = NPGetConnectionPerformance(lpRemoteName, lpNetConnectInfo)
; lpRemoteName : LPCWSTR -> "wstr"
; lpNetConnectInfo : NETCONNECTINFOSTRUCT* 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 "NTLANMAN.dll"
#cfunc global NPGetConnectionPerformance "NPGetConnectionPerformance" wstr, sptr
; res = NPGetConnectionPerformance(lpRemoteName, varptr(lpNetConnectInfo))
; lpRemoteName : LPCWSTR -> "wstr"
; lpNetConnectInfo : NETCONNECTINFOSTRUCT* 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:

; DWORD NPGetConnectionPerformance(LPCWSTR lpRemoteName, NETCONNECTINFOSTRUCT* lpNetConnectInfo)
#uselib "NTLANMAN.dll"
#cfunc global NPGetConnectionPerformance "NPGetConnectionPerformance" wstr, var
; res = NPGetConnectionPerformance(lpRemoteName, lpNetConnectInfo)
; lpRemoteName : LPCWSTR -> "wstr"
; lpNetConnectInfo : NETCONNECTINFOSTRUCT* 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。; DWORD NPGetConnectionPerformance(LPCWSTR lpRemoteName, NETCONNECTINFOSTRUCT* lpNetConnectInfo)
#uselib "NTLANMAN.dll"
#cfunc global NPGetConnectionPerformance "NPGetConnectionPerformance" wstr, intptr
; res = NPGetConnectionPerformance(lpRemoteName, varptr(lpNetConnectInfo))
; lpRemoteName : LPCWSTR -> "wstr"
; lpNetConnectInfo : NETCONNECTINFOSTRUCT* 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 (
	ntlanman = windows.NewLazySystemDLL("NTLANMAN.dll")
	procNPGetConnectionPerformance = ntlanman.NewProc("NPGetConnectionPerformance")
)

// lpRemoteName (LPCWSTR), lpNetConnectInfo (NETCONNECTINFOSTRUCT* out)
r1, _, err := procNPGetConnectionPerformance.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpRemoteName))),
	uintptr(lpNetConnectInfo),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function NPGetConnectionPerformance(
  lpRemoteName: PWideChar;   // LPCWSTR
  lpNetConnectInfo: Pointer   // NETCONNECTINFOSTRUCT* out
): DWORD; stdcall;
  external 'NTLANMAN.dll' name 'NPGetConnectionPerformance';

result := DllCall("NTLANMAN\NPGetConnectionPerformance"
    , "WStr", lpRemoteName   ; LPCWSTR
    , "Ptr", lpNetConnectInfo   ; NETCONNECTINFOSTRUCT* out
    , "UInt")   ; return: DWORD

●NPGetConnectionPerformance(lpRemoteName, lpNetConnectInfo) = DLL("NTLANMAN.dll", "dword NPGetConnectionPerformance(char*, void*)")
# 呼び出し: NPGetConnectionPerformance(lpRemoteName, lpNetConnectInfo)
# lpRemoteName : LPCWSTR -> "char*"
# lpNetConnectInfo : NETCONNECTINFOSTRUCT* 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)。