NPAddConnection3

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

DWORD NPAddConnection3(
    HWND hwndOwner,   // optional
    NETRESOURCEW* lpNetResource,
    LPWSTR lpPassword,   // optional
    LPWSTR lpUserName,   // optional
    NET_CONNECT_FLAGS dwFlags
);

<DllImport("davclnt.dll", ExactSpelling:=True)>
Public Shared Function NPAddConnection3(
    hwndOwner As IntPtr,   ' HWND optional
    lpNetResource As IntPtr,   ' NETRESOURCEW*
    <MarshalAs(UnmanagedType.LPWStr)> lpPassword As String,   ' LPWSTR optional
    <MarshalAs(UnmanagedType.LPWStr)> lpUserName As String,   ' LPWSTR optional
    dwFlags As UInteger   ' NET_CONNECT_FLAGS
) As UInteger
End Function

' hwndOwner : HWND optional
' lpNetResource : NETRESOURCEW*
' lpPassword : LPWSTR optional
' lpUserName : LPWSTR optional
' dwFlags : NET_CONNECT_FLAGS
Declare PtrSafe Function NPAddConnection3 Lib "davclnt" ( _
    ByVal hwndOwner As LongPtr, _
    ByVal lpNetResource As LongPtr, _
    ByVal lpPassword As LongPtr, _
    ByVal lpUserName As LongPtr, _
    ByVal dwFlags 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

NPAddConnection3 = ctypes.windll.davclnt.NPAddConnection3
NPAddConnection3.restype = wintypes.DWORD
NPAddConnection3.argtypes = [
    wintypes.HANDLE,  # hwndOwner : HWND optional
    ctypes.c_void_p,  # lpNetResource : NETRESOURCEW*
    wintypes.LPCWSTR,  # lpPassword : LPWSTR optional
    wintypes.LPCWSTR,  # lpUserName : LPWSTR optional
    wintypes.DWORD,  # dwFlags : NET_CONNECT_FLAGS
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('davclnt.dll')
NPAddConnection3 = Fiddle::Function.new(
  lib['NPAddConnection3'],
  [
    Fiddle::TYPE_VOIDP,  # hwndOwner : HWND optional
    Fiddle::TYPE_VOIDP,  # lpNetResource : NETRESOURCEW*
    Fiddle::TYPE_VOIDP,  # lpPassword : LPWSTR optional
    Fiddle::TYPE_VOIDP,  # lpUserName : LPWSTR optional
    -Fiddle::TYPE_INT,  # dwFlags : NET_CONNECT_FLAGS
  ],
  -Fiddle::TYPE_INT)

#[link(name = "davclnt")]
extern "system" {
    fn NPAddConnection3(
        hwndOwner: *mut core::ffi::c_void,  // HWND optional
        lpNetResource: *mut NETRESOURCEW,  // NETRESOURCEW*
        lpPassword: *mut u16,  // LPWSTR optional
        lpUserName: *mut u16,  // LPWSTR optional
        dwFlags: u32  // NET_CONNECT_FLAGS
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("davclnt.dll")]
public static extern uint NPAddConnection3(IntPtr hwndOwner, IntPtr lpNetResource, [MarshalAs(UnmanagedType.LPWStr)] string lpPassword, [MarshalAs(UnmanagedType.LPWStr)] string lpUserName, uint dwFlags);
"@
$api = Add-Type -MemberDefinition $sig -Name 'davclnt_NPAddConnection3' -Namespace Win32 -PassThru
# $api::NPAddConnection3(hwndOwner, lpNetResource, lpPassword, lpUserName, dwFlags)

#uselib "davclnt.dll"
#func global NPAddConnection3 "NPAddConnection3" sptr, sptr, sptr, sptr, sptr
; NPAddConnection3 hwndOwner, varptr(lpNetResource), lpPassword, lpUserName, dwFlags   ; 戻り値は stat
; hwndOwner : HWND optional -> "sptr"
; lpNetResource : NETRESOURCEW* -> "sptr"
; lpPassword : LPWSTR optional -> "sptr"
; lpUserName : LPWSTR optional -> "sptr"
; dwFlags : NET_CONNECT_FLAGS -> "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。

#uselib "davclnt.dll"
#cfunc global NPAddConnection3 "NPAddConnection3" sptr, var, wstr, wstr, int
; res = NPAddConnection3(hwndOwner, lpNetResource, lpPassword, lpUserName, dwFlags)
; hwndOwner : HWND optional -> "sptr"
; lpNetResource : NETRESOURCEW* -> "var"
; lpPassword : LPWSTR optional -> "wstr"
; lpUserName : LPWSTR optional -> "wstr"
; dwFlags : NET_CONNECT_FLAGS -> "int"
; ※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 NPAddConnection3(HWND hwndOwner, NETRESOURCEW* lpNetResource, LPWSTR lpPassword, LPWSTR lpUserName, NET_CONNECT_FLAGS dwFlags)
#uselib "davclnt.dll"
#cfunc global NPAddConnection3 "NPAddConnection3" intptr, var, wstr, wstr, int
; res = NPAddConnection3(hwndOwner, lpNetResource, lpPassword, lpUserName, dwFlags)
; hwndOwner : HWND optional -> "intptr"
; lpNetResource : NETRESOURCEW* -> "var"
; lpPassword : LPWSTR optional -> "wstr"
; lpUserName : LPWSTR optional -> "wstr"
; dwFlags : NET_CONNECT_FLAGS -> "int"
; ※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。

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	davclnt = windows.NewLazySystemDLL("davclnt.dll")
	procNPAddConnection3 = davclnt.NewProc("NPAddConnection3")
)

// hwndOwner (HWND optional), lpNetResource (NETRESOURCEW*), lpPassword (LPWSTR optional), lpUserName (LPWSTR optional), dwFlags (NET_CONNECT_FLAGS)
r1, _, err := procNPAddConnection3.Call(
	uintptr(hwndOwner),
	uintptr(lpNetResource),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpPassword))),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpUserName))),
	uintptr(dwFlags),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function NPAddConnection3(
  hwndOwner: THandle;   // HWND optional
  lpNetResource: Pointer;   // NETRESOURCEW*
  lpPassword: PWideChar;   // LPWSTR optional
  lpUserName: PWideChar;   // LPWSTR optional
  dwFlags: DWORD   // NET_CONNECT_FLAGS
): DWORD; stdcall;
  external 'davclnt.dll' name 'NPAddConnection3';

result := DllCall("davclnt\NPAddConnection3"
    , "Ptr", hwndOwner   ; HWND optional
    , "Ptr", lpNetResource   ; NETRESOURCEW*
    , "WStr", lpPassword   ; LPWSTR optional
    , "WStr", lpUserName   ; LPWSTR optional
    , "UInt", dwFlags   ; NET_CONNECT_FLAGS
    , "UInt")   ; return: DWORD

●NPAddConnection3(hwndOwner, lpNetResource, lpPassword, lpUserName, dwFlags) = DLL("davclnt.dll", "dword NPAddConnection3(void*, void*, char*, char*, dword)")
# 呼び出し: NPAddConnection3(hwndOwner, lpNetResource, lpPassword, lpUserName, dwFlags)
# hwndOwner : HWND optional -> "void*"
# lpNetResource : NETRESOURCEW* -> "void*"
# lpPassword : LPWSTR optional -> "char*"
# lpUserName : LPWSTR optional -> "char*"
# dwFlags : NET_CONNECT_FLAGS -> "dword"
# 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)。