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DavGetHTTPFromUNCPath

関数

WebDAVのUNCパスを対応するHTTP URLに変換する。

DLLNETAPI32.dll呼出規約winapi対応OSWindows Vista 以降

シグネチャ

// NETAPI32.dll
#include <windows.h>

DWORD DavGetHTTPFromUNCPath(
    LPCWSTR UncPath,
    LPWSTR Url,   // optional
    DWORD* lpSize
);

パラメーター

名前	型	方向
UncPath	LPCWSTR	in
Url	LPWSTR	outoptional
lpSize	DWORD*	inout

戻り値の型: DWORD

各言語での呼び出し定義

// NETAPI32.dll
#include <windows.h>

DWORD DavGetHTTPFromUNCPath(
    LPCWSTR UncPath,
    LPWSTR Url,   // optional
    DWORD* lpSize
);

[DllImport("NETAPI32.dll", ExactSpelling = true)]
static extern uint DavGetHTTPFromUNCPath(
    [MarshalAs(UnmanagedType.LPWStr)] string UncPath,   // LPCWSTR
    [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder Url,   // LPWSTR optional, out
    ref uint lpSize   // DWORD* in/out
);

<DllImport("NETAPI32.dll", ExactSpelling:=True)>
Public Shared Function DavGetHTTPFromUNCPath(
    <MarshalAs(UnmanagedType.LPWStr)> UncPath As String,   ' LPCWSTR
    <MarshalAs(UnmanagedType.LPWStr)> Url As System.Text.StringBuilder,   ' LPWSTR optional, out
    ByRef lpSize As UInteger   ' DWORD* in/out
) As UInteger
End Function

' UncPath : LPCWSTR
' Url : LPWSTR optional, out
' lpSize : DWORD* in/out
Declare PtrSafe Function DavGetHTTPFromUNCPath Lib "netapi32" ( _
    ByVal UncPath As LongPtr, _
    ByVal Url As LongPtr, _
    ByRef lpSize 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

DavGetHTTPFromUNCPath = ctypes.windll.netapi32.DavGetHTTPFromUNCPath
DavGetHTTPFromUNCPath.restype = wintypes.DWORD
DavGetHTTPFromUNCPath.argtypes = [
    wintypes.LPCWSTR,  # UncPath : LPCWSTR
    wintypes.LPWSTR,  # Url : LPWSTR optional, out
    ctypes.POINTER(wintypes.DWORD),  # lpSize : DWORD* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('NETAPI32.dll')
DavGetHTTPFromUNCPath = Fiddle::Function.new(
  lib['DavGetHTTPFromUNCPath'],
  [
    Fiddle::TYPE_VOIDP,  # UncPath : LPCWSTR
    Fiddle::TYPE_VOIDP,  # Url : LPWSTR optional, out
    Fiddle::TYPE_VOIDP,  # lpSize : DWORD* in/out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "netapi32")]
extern "system" {
    fn DavGetHTTPFromUNCPath(
        UncPath: *const u16,  // LPCWSTR
        Url: *mut u16,  // LPWSTR optional, out
        lpSize: *mut u32  // DWORD* in/out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("NETAPI32.dll")]
public static extern uint DavGetHTTPFromUNCPath([MarshalAs(UnmanagedType.LPWStr)] string UncPath, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder Url, ref uint lpSize);
"@
$api = Add-Type -MemberDefinition $sig -Name 'NETAPI32_DavGetHTTPFromUNCPath' -Namespace Win32 -PassThru
# $api::DavGetHTTPFromUNCPath(UncPath, Url, lpSize)

#uselib "NETAPI32.dll"
#func global DavGetHTTPFromUNCPath "DavGetHTTPFromUNCPath" sptr, sptr, sptr
; DavGetHTTPFromUNCPath UncPath, varptr(Url), varptr(lpSize)   ; 戻り値は stat
; UncPath : LPCWSTR -> "sptr"
; Url : LPWSTR optional, out -> "sptr"
; lpSize : 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 "NETAPI32.dll"
#cfunc global DavGetHTTPFromUNCPath "DavGetHTTPFromUNCPath" wstr, var, var
; res = DavGetHTTPFromUNCPath(UncPath, Url, lpSize)
; UncPath : LPCWSTR -> "wstr"
; Url : LPWSTR optional, out -> "var"
; lpSize : 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 "NETAPI32.dll"
#cfunc global DavGetHTTPFromUNCPath "DavGetHTTPFromUNCPath" wstr, sptr, sptr
; res = DavGetHTTPFromUNCPath(UncPath, varptr(Url), varptr(lpSize))
; UncPath : LPCWSTR -> "wstr"
; Url : LPWSTR optional, out -> "sptr"
; lpSize : 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 DavGetHTTPFromUNCPath(LPCWSTR UncPath, LPWSTR Url, DWORD* lpSize)
#uselib "NETAPI32.dll"
#cfunc global DavGetHTTPFromUNCPath "DavGetHTTPFromUNCPath" wstr, var, var
; res = DavGetHTTPFromUNCPath(UncPath, Url, lpSize)
; UncPath : LPCWSTR -> "wstr"
; Url : LPWSTR optional, out -> "var"
; lpSize : 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 DavGetHTTPFromUNCPath(LPCWSTR UncPath, LPWSTR Url, DWORD* lpSize)
#uselib "NETAPI32.dll"
#cfunc global DavGetHTTPFromUNCPath "DavGetHTTPFromUNCPath" wstr, intptr, intptr
; res = DavGetHTTPFromUNCPath(UncPath, varptr(Url), varptr(lpSize))
; UncPath : LPCWSTR -> "wstr"
; Url : LPWSTR optional, out -> "intptr"
; lpSize : 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 (
	netapi32 = windows.NewLazySystemDLL("NETAPI32.dll")
	procDavGetHTTPFromUNCPath = netapi32.NewProc("DavGetHTTPFromUNCPath")
)

// UncPath (LPCWSTR), Url (LPWSTR optional, out), lpSize (DWORD* in/out)
r1, _, err := procDavGetHTTPFromUNCPath.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(UncPath))),
	uintptr(Url),
	uintptr(lpSize),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function DavGetHTTPFromUNCPath(
  UncPath: PWideChar;   // LPCWSTR
  Url: PWideChar;   // LPWSTR optional, out
  lpSize: Pointer   // DWORD* in/out
): DWORD; stdcall;
  external 'NETAPI32.dll' name 'DavGetHTTPFromUNCPath';

result := DllCall("NETAPI32\DavGetHTTPFromUNCPath"
    , "WStr", UncPath   ; LPCWSTR
    , "Ptr", Url   ; LPWSTR optional, out
    , "Ptr", lpSize   ; DWORD* in/out
    , "UInt")   ; return: DWORD

●DavGetHTTPFromUNCPath(UncPath, Url, lpSize) = DLL("NETAPI32.dll", "dword DavGetHTTPFromUNCPath(char*, char*, void*)")
# 呼び出し: DavGetHTTPFromUNCPath(UncPath, Url, lpSize)
# UncPath : LPCWSTR -> "char*"
# Url : LPWSTR optional, out -> "char*"
# lpSize : 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)。