RasGetCustomAuthDataA

// RASAPI32.dll  (ANSI / -A)
#include <windows.h>

DWORD RasGetCustomAuthDataA(
    LPCSTR pszPhonebook,   // optional
    LPCSTR pszEntry,
    BYTE* pbCustomAuthData,   // optional
    DWORD* pdwSizeofCustomAuthData
);

<DllImport("RASAPI32.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function RasGetCustomAuthDataA(
    <MarshalAs(UnmanagedType.LPStr)> pszPhonebook As String,   ' LPCSTR optional
    <MarshalAs(UnmanagedType.LPStr)> pszEntry As String,   ' LPCSTR
    pbCustomAuthData As IntPtr,   ' BYTE* optional, out
    ByRef pdwSizeofCustomAuthData As UInteger   ' DWORD* in/out
) As UInteger
End Function

' pszPhonebook : LPCSTR optional
' pszEntry : LPCSTR
' pbCustomAuthData : BYTE* optional, out
' pdwSizeofCustomAuthData : DWORD* in/out
Declare PtrSafe Function RasGetCustomAuthDataA Lib "rasapi32" ( _
    ByVal pszPhonebook As String, _
    ByVal pszEntry As String, _
    ByVal pbCustomAuthData As LongPtr, _
    ByRef pdwSizeofCustomAuthData 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

RasGetCustomAuthDataA = ctypes.windll.rasapi32.RasGetCustomAuthDataA
RasGetCustomAuthDataA.restype = wintypes.DWORD
RasGetCustomAuthDataA.argtypes = [
    wintypes.LPCSTR,  # pszPhonebook : LPCSTR optional
    wintypes.LPCSTR,  # pszEntry : LPCSTR
    ctypes.POINTER(ctypes.c_ubyte),  # pbCustomAuthData : BYTE* optional, out
    ctypes.POINTER(wintypes.DWORD),  # pdwSizeofCustomAuthData : DWORD* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('RASAPI32.dll')
RasGetCustomAuthDataA = Fiddle::Function.new(
  lib['RasGetCustomAuthDataA'],
  [
    Fiddle::TYPE_VOIDP,  # pszPhonebook : LPCSTR optional
    Fiddle::TYPE_VOIDP,  # pszEntry : LPCSTR
    Fiddle::TYPE_VOIDP,  # pbCustomAuthData : BYTE* optional, out
    Fiddle::TYPE_VOIDP,  # pdwSizeofCustomAuthData : DWORD* in/out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "rasapi32")]
extern "system" {
    fn RasGetCustomAuthDataA(
        pszPhonebook: *const u8,  // LPCSTR optional
        pszEntry: *const u8,  // LPCSTR
        pbCustomAuthData: *mut u8,  // BYTE* optional, out
        pdwSizeofCustomAuthData: *mut u32  // DWORD* in/out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("RASAPI32.dll", CharSet = CharSet.Ansi)]
public static extern uint RasGetCustomAuthDataA([MarshalAs(UnmanagedType.LPStr)] string pszPhonebook, [MarshalAs(UnmanagedType.LPStr)] string pszEntry, IntPtr pbCustomAuthData, ref uint pdwSizeofCustomAuthData);
"@
$api = Add-Type -MemberDefinition $sig -Name 'RASAPI32_RasGetCustomAuthDataA' -Namespace Win32 -PassThru
# $api::RasGetCustomAuthDataA(pszPhonebook, pszEntry, pbCustomAuthData, pdwSizeofCustomAuthData)

#uselib "RASAPI32.dll"
#func global RasGetCustomAuthDataA "RasGetCustomAuthDataA" sptr, sptr, sptr, sptr
; RasGetCustomAuthDataA pszPhonebook, pszEntry, varptr(pbCustomAuthData), varptr(pdwSizeofCustomAuthData)   ; 戻り値は stat
; pszPhonebook : LPCSTR optional -> "sptr"
; pszEntry : LPCSTR -> "sptr"
; pbCustomAuthData : BYTE* optional, out -> "sptr"
; pdwSizeofCustomAuthData : 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。

#uselib "RASAPI32.dll"
#cfunc global RasGetCustomAuthDataA "RasGetCustomAuthDataA" str, str, var, var
; res = RasGetCustomAuthDataA(pszPhonebook, pszEntry, pbCustomAuthData, pdwSizeofCustomAuthData)
; pszPhonebook : LPCSTR optional -> "str"
; pszEntry : LPCSTR -> "str"
; pbCustomAuthData : BYTE* optional, out -> "var"
; pdwSizeofCustomAuthData : 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 RasGetCustomAuthDataA(LPCSTR pszPhonebook, LPCSTR pszEntry, BYTE* pbCustomAuthData, DWORD* pdwSizeofCustomAuthData)
#uselib "RASAPI32.dll"
#cfunc global RasGetCustomAuthDataA "RasGetCustomAuthDataA" str, str, var, var
; res = RasGetCustomAuthDataA(pszPhonebook, pszEntry, pbCustomAuthData, pdwSizeofCustomAuthData)
; pszPhonebook : LPCSTR optional -> "str"
; pszEntry : LPCSTR -> "str"
; pbCustomAuthData : BYTE* optional, out -> "var"
; pdwSizeofCustomAuthData : 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。

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

var (
	rasapi32 = windows.NewLazySystemDLL("RASAPI32.dll")
	procRasGetCustomAuthDataA = rasapi32.NewProc("RasGetCustomAuthDataA")
)

// pszPhonebook (LPCSTR optional), pszEntry (LPCSTR), pbCustomAuthData (BYTE* optional, out), pdwSizeofCustomAuthData (DWORD* in/out)
r1, _, err := procRasGetCustomAuthDataA.Call(
	uintptr(unsafe.Pointer(windows.BytePtrFromString(pszPhonebook))),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(pszEntry))),
	uintptr(pbCustomAuthData),
	uintptr(pdwSizeofCustomAuthData),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function RasGetCustomAuthDataA(
  pszPhonebook: PAnsiChar;   // LPCSTR optional
  pszEntry: PAnsiChar;   // LPCSTR
  pbCustomAuthData: Pointer;   // BYTE* optional, out
  pdwSizeofCustomAuthData: Pointer   // DWORD* in/out
): DWORD; stdcall;
  external 'RASAPI32.dll' name 'RasGetCustomAuthDataA';

result := DllCall("RASAPI32\RasGetCustomAuthDataA"
    , "AStr", pszPhonebook   ; LPCSTR optional
    , "AStr", pszEntry   ; LPCSTR
    , "Ptr", pbCustomAuthData   ; BYTE* optional, out
    , "Ptr", pdwSizeofCustomAuthData   ; DWORD* in/out
    , "UInt")   ; return: DWORD

●RasGetCustomAuthDataA(pszPhonebook, pszEntry, pbCustomAuthData, pdwSizeofCustomAuthData) = DLL("RASAPI32.dll", "dword RasGetCustomAuthDataA(char*, char*, void*, void*)")
# 呼び出し: RasGetCustomAuthDataA(pszPhonebook, pszEntry, pbCustomAuthData, pdwSizeofCustomAuthData)
# pszPhonebook : LPCSTR optional -> "char*"
# pszEntry : LPCSTR -> "char*"
# pbCustomAuthData : BYTE* optional, out -> "void*"
# pdwSizeofCustomAuthData : 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)。