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NPGetUser

関数

接続に使用したユーザー名をプロバイダーから取得する。

DLLdavclnt.dll呼出規約winapi対応OSWindows XP 以降

シグネチャ

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

DWORD NPGetUser(
    LPWSTR lpName,
    LPWSTR lpUserName,
    DWORD* lpnBufferLen
);

パラメーター

名前	型	方向
lpName	LPWSTR	in
lpUserName	LPWSTR	out
lpnBufferLen	DWORD*	inout

戻り値の型: DWORD

各言語での呼び出し定義

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

DWORD NPGetUser(
    LPWSTR lpName,
    LPWSTR lpUserName,
    DWORD* lpnBufferLen
);

[DllImport("davclnt.dll", ExactSpelling = true)]
static extern uint NPGetUser(
    [MarshalAs(UnmanagedType.LPWStr)] string lpName,   // LPWSTR
    [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder lpUserName,   // LPWSTR out
    ref uint lpnBufferLen   // DWORD* in/out
);

<DllImport("davclnt.dll", ExactSpelling:=True)>
Public Shared Function NPGetUser(
    <MarshalAs(UnmanagedType.LPWStr)> lpName As String,   ' LPWSTR
    <MarshalAs(UnmanagedType.LPWStr)> lpUserName As System.Text.StringBuilder,   ' LPWSTR out
    ByRef lpnBufferLen As UInteger   ' DWORD* in/out
) As UInteger
End Function

' lpName : LPWSTR
' lpUserName : LPWSTR out
' lpnBufferLen : DWORD* in/out
Declare PtrSafe Function NPGetUser Lib "davclnt" ( _
    ByVal lpName As LongPtr, _
    ByVal lpUserName As LongPtr, _
    ByRef lpnBufferLen As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

NPGetUser = ctypes.windll.davclnt.NPGetUser
NPGetUser.restype = wintypes.DWORD
NPGetUser.argtypes = [
    wintypes.LPCWSTR,  # lpName : LPWSTR
    wintypes.LPWSTR,  # lpUserName : LPWSTR out
    ctypes.POINTER(wintypes.DWORD),  # lpnBufferLen : DWORD* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('davclnt.dll')
NPGetUser = Fiddle::Function.new(
  lib['NPGetUser'],
  [
    Fiddle::TYPE_VOIDP,  # lpName : LPWSTR
    Fiddle::TYPE_VOIDP,  # lpUserName : LPWSTR out
    Fiddle::TYPE_VOIDP,  # lpnBufferLen : DWORD* in/out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "davclnt")]
extern "system" {
    fn NPGetUser(
        lpName: *mut u16,  // LPWSTR
        lpUserName: *mut u16,  // LPWSTR out
        lpnBufferLen: *mut u32  // DWORD* in/out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("davclnt.dll")]
public static extern uint NPGetUser([MarshalAs(UnmanagedType.LPWStr)] string lpName, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder lpUserName, ref uint lpnBufferLen);
"@
$api = Add-Type -MemberDefinition $sig -Name 'davclnt_NPGetUser' -Namespace Win32 -PassThru
# $api::NPGetUser(lpName, lpUserName, lpnBufferLen)

#uselib "davclnt.dll"
#func global NPGetUser "NPGetUser" sptr, sptr, sptr
; NPGetUser lpName, varptr(lpUserName), varptr(lpnBufferLen)   ; 戻り値は stat
; lpName : LPWSTR -> "sptr"
; lpUserName : LPWSTR out -> "sptr"
; lpnBufferLen : DWORD* 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 "davclnt.dll"
#cfunc global NPGetUser "NPGetUser" wstr, var, var
; res = NPGetUser(lpName, lpUserName, lpnBufferLen)
; lpName : LPWSTR -> "wstr"
; lpUserName : LPWSTR out -> "var"
; lpnBufferLen : DWORD* 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 "davclnt.dll"
#cfunc global NPGetUser "NPGetUser" wstr, sptr, sptr
; res = NPGetUser(lpName, varptr(lpUserName), varptr(lpnBufferLen))
; lpName : LPWSTR -> "wstr"
; lpUserName : LPWSTR out -> "sptr"
; lpnBufferLen : DWORD* 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:

; DWORD NPGetUser(LPWSTR lpName, LPWSTR lpUserName, DWORD* lpnBufferLen)
#uselib "davclnt.dll"
#cfunc global NPGetUser "NPGetUser" wstr, var, var
; res = NPGetUser(lpName, lpUserName, lpnBufferLen)
; lpName : LPWSTR -> "wstr"
; lpUserName : LPWSTR out -> "var"
; lpnBufferLen : DWORD* 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。; DWORD NPGetUser(LPWSTR lpName, LPWSTR lpUserName, DWORD* lpnBufferLen)
#uselib "davclnt.dll"
#cfunc global NPGetUser "NPGetUser" wstr, intptr, intptr
; res = NPGetUser(lpName, varptr(lpUserName), varptr(lpnBufferLen))
; lpName : LPWSTR -> "wstr"
; lpUserName : LPWSTR out -> "intptr"
; lpnBufferLen : DWORD* 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 (
	davclnt = windows.NewLazySystemDLL("davclnt.dll")
	procNPGetUser = davclnt.NewProc("NPGetUser")
)

// lpName (LPWSTR), lpUserName (LPWSTR out), lpnBufferLen (DWORD* in/out)
r1, _, err := procNPGetUser.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpName))),
	uintptr(lpUserName),
	uintptr(lpnBufferLen),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function NPGetUser(
  lpName: PWideChar;   // LPWSTR
  lpUserName: PWideChar;   // LPWSTR out
  lpnBufferLen: Pointer   // DWORD* in/out
): DWORD; stdcall;
  external 'davclnt.dll' name 'NPGetUser';

result := DllCall("davclnt\NPGetUser"
    , "WStr", lpName   ; LPWSTR
    , "Ptr", lpUserName   ; LPWSTR out
    , "Ptr", lpnBufferLen   ; DWORD* in/out
    , "UInt")   ; return: DWORD

●NPGetUser(lpName, lpUserName, lpnBufferLen) = DLL("davclnt.dll", "dword NPGetUser(char*, char*, void*)")
# 呼び出し: NPGetUser(lpName, lpUserName, lpnBufferLen)
# lpName : LPWSTR -> "char*"
# lpUserName : LPWSTR out -> "char*"
# lpnBufferLen : DWORD* 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)。