RasGetEntryDialParamsA

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

DWORD RasGetEntryDialParamsA(
    LPCSTR param0,   // optional
    RASDIALPARAMSA* param1,
    BOOL* param2
);

<DllImport("RASAPI32.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function RasGetEntryDialParamsA(
    <MarshalAs(UnmanagedType.LPStr)> param0 As String,   ' LPCSTR optional
    param1 As IntPtr,   ' RASDIALPARAMSA* in/out
    <Out> ByRef param2 As Integer   ' BOOL* out
) As UInteger
End Function

' param0 : LPCSTR optional
' param1 : RASDIALPARAMSA* in/out
' param2 : BOOL* out
Declare PtrSafe Function RasGetEntryDialParamsA Lib "rasapi32" ( _
    ByVal param0 As String, _
    ByVal param1 As LongPtr, _
    ByRef param2 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

RasGetEntryDialParamsA = ctypes.windll.rasapi32.RasGetEntryDialParamsA
RasGetEntryDialParamsA.restype = wintypes.DWORD
RasGetEntryDialParamsA.argtypes = [
    wintypes.LPCSTR,  # param0 : LPCSTR optional
    ctypes.c_void_p,  # param1 : RASDIALPARAMSA* in/out
    ctypes.c_void_p,  # param2 : BOOL* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('RASAPI32.dll')
RasGetEntryDialParamsA = Fiddle::Function.new(
  lib['RasGetEntryDialParamsA'],
  [
    Fiddle::TYPE_VOIDP,  # param0 : LPCSTR optional
    Fiddle::TYPE_VOIDP,  # param1 : RASDIALPARAMSA* in/out
    Fiddle::TYPE_VOIDP,  # param2 : BOOL* out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "rasapi32")]
extern "system" {
    fn RasGetEntryDialParamsA(
        param0: *const u8,  // LPCSTR optional
        param1: *mut RASDIALPARAMSA,  // RASDIALPARAMSA* in/out
        param2: *mut i32  // BOOL* out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("RASAPI32.dll", CharSet = CharSet.Ansi)]
public static extern uint RasGetEntryDialParamsA([MarshalAs(UnmanagedType.LPStr)] string param0, IntPtr param1, out int param2);
"@
$api = Add-Type -MemberDefinition $sig -Name 'RASAPI32_RasGetEntryDialParamsA' -Namespace Win32 -PassThru
# $api::RasGetEntryDialParamsA(param0, param1, param2)

#uselib "RASAPI32.dll"
#func global RasGetEntryDialParamsA "RasGetEntryDialParamsA" sptr, sptr, sptr
; RasGetEntryDialParamsA param0, varptr(param1), param2   ; 戻り値は stat
; param0 : LPCSTR optional -> "sptr"
; param1 : RASDIALPARAMSA* in/out -> "sptr"
; param2 : BOOL* 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 RasGetEntryDialParamsA "RasGetEntryDialParamsA" str, var, int
; res = RasGetEntryDialParamsA(param0, param1, param2)
; param0 : LPCSTR optional -> "str"
; param1 : RASDIALPARAMSA* in/out -> "var"
; param2 : BOOL* out -> "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 RasGetEntryDialParamsA(LPCSTR param0, RASDIALPARAMSA* param1, BOOL* param2)
#uselib "RASAPI32.dll"
#cfunc global RasGetEntryDialParamsA "RasGetEntryDialParamsA" str, var, int
; res = RasGetEntryDialParamsA(param0, param1, param2)
; param0 : LPCSTR optional -> "str"
; param1 : RASDIALPARAMSA* in/out -> "var"
; param2 : BOOL* out -> "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 (
	rasapi32 = windows.NewLazySystemDLL("RASAPI32.dll")
	procRasGetEntryDialParamsA = rasapi32.NewProc("RasGetEntryDialParamsA")
)

// param0 (LPCSTR optional), param1 (RASDIALPARAMSA* in/out), param2 (BOOL* out)
r1, _, err := procRasGetEntryDialParamsA.Call(
	uintptr(unsafe.Pointer(windows.BytePtrFromString(param0))),
	uintptr(param1),
	uintptr(param2),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function RasGetEntryDialParamsA(
  param0: PAnsiChar;   // LPCSTR optional
  param1: Pointer;   // RASDIALPARAMSA* in/out
  param2: Pointer   // BOOL* out
): DWORD; stdcall;
  external 'RASAPI32.dll' name 'RasGetEntryDialParamsA';

result := DllCall("RASAPI32\RasGetEntryDialParamsA"
    , "AStr", param0   ; LPCSTR optional
    , "Ptr", param1   ; RASDIALPARAMSA* in/out
    , "Ptr", param2   ; BOOL* out
    , "UInt")   ; return: DWORD

●RasGetEntryDialParamsA(param0, param1, param2) = DLL("RASAPI32.dll", "dword RasGetEntryDialParamsA(char*, void*, void*)")
# 呼び出し: RasGetEntryDialParamsA(param0, param1, param2)
# param0 : LPCSTR optional -> "char*"
# param1 : RASDIALPARAMSA* in/out -> "void*"
# param2 : BOOL* 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)。