WSCEnumProtocols32

// WS2_32.dll
#include <windows.h>

INT WSCEnumProtocols32(
    INT* lpiProtocols,   // optional
    WSAPROTOCOL_INFOW* lpProtocolBuffer,
    DWORD* lpdwBufferLength,
    INT* lpErrno
);

<DllImport("WS2_32.dll", ExactSpelling:=True)>
Public Shared Function WSCEnumProtocols32(
    lpiProtocols As IntPtr,   ' INT* optional
    lpProtocolBuffer As IntPtr,   ' WSAPROTOCOL_INFOW* out
    ByRef lpdwBufferLength As UInteger,   ' DWORD* in/out
    <Out> ByRef lpErrno As Integer   ' INT* out
) As Integer
End Function

' lpiProtocols : INT* optional
' lpProtocolBuffer : WSAPROTOCOL_INFOW* out
' lpdwBufferLength : DWORD* in/out
' lpErrno : INT* out
Declare PtrSafe Function WSCEnumProtocols32 Lib "ws2_32" ( _
    ByVal lpiProtocols As LongPtr, _
    ByVal lpProtocolBuffer As LongPtr, _
    ByRef lpdwBufferLength As Long, _
    ByRef lpErrno 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

WSCEnumProtocols32 = ctypes.windll.ws2_32.WSCEnumProtocols32
WSCEnumProtocols32.restype = ctypes.c_int
WSCEnumProtocols32.argtypes = [
    ctypes.POINTER(ctypes.c_int),  # lpiProtocols : INT* optional
    ctypes.c_void_p,  # lpProtocolBuffer : WSAPROTOCOL_INFOW* out
    ctypes.POINTER(wintypes.DWORD),  # lpdwBufferLength : DWORD* in/out
    ctypes.POINTER(ctypes.c_int),  # lpErrno : INT* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WS2_32.dll')
WSCEnumProtocols32 = Fiddle::Function.new(
  lib['WSCEnumProtocols32'],
  [
    Fiddle::TYPE_VOIDP,  # lpiProtocols : INT* optional
    Fiddle::TYPE_VOIDP,  # lpProtocolBuffer : WSAPROTOCOL_INFOW* out
    Fiddle::TYPE_VOIDP,  # lpdwBufferLength : DWORD* in/out
    Fiddle::TYPE_VOIDP,  # lpErrno : INT* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "ws2_32")]
extern "system" {
    fn WSCEnumProtocols32(
        lpiProtocols: *mut i32,  // INT* optional
        lpProtocolBuffer: *mut WSAPROTOCOL_INFOW,  // WSAPROTOCOL_INFOW* out
        lpdwBufferLength: *mut u32,  // DWORD* in/out
        lpErrno: *mut i32  // INT* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("WS2_32.dll")]
public static extern int WSCEnumProtocols32(IntPtr lpiProtocols, IntPtr lpProtocolBuffer, ref uint lpdwBufferLength, out int lpErrno);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WS2_32_WSCEnumProtocols32' -Namespace Win32 -PassThru
# $api::WSCEnumProtocols32(lpiProtocols, lpProtocolBuffer, lpdwBufferLength, lpErrno)

#uselib "WS2_32.dll"
#func global WSCEnumProtocols32 "WSCEnumProtocols32" sptr, sptr, sptr, sptr
; WSCEnumProtocols32 varptr(lpiProtocols), varptr(lpProtocolBuffer), varptr(lpdwBufferLength), varptr(lpErrno)   ; 戻り値は stat
; lpiProtocols : INT* optional -> "sptr"
; lpProtocolBuffer : WSAPROTOCOL_INFOW* out -> "sptr"
; lpdwBufferLength : DWORD* in/out -> "sptr"
; lpErrno : INT* 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 "WS2_32.dll"
#cfunc global WSCEnumProtocols32 "WSCEnumProtocols32" var, var, var, var
; res = WSCEnumProtocols32(lpiProtocols, lpProtocolBuffer, lpdwBufferLength, lpErrno)
; lpiProtocols : INT* optional -> "var"
; lpProtocolBuffer : WSAPROTOCOL_INFOW* out -> "var"
; lpdwBufferLength : DWORD* in/out -> "var"
; lpErrno : INT* 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。

; INT WSCEnumProtocols32(INT* lpiProtocols, WSAPROTOCOL_INFOW* lpProtocolBuffer, DWORD* lpdwBufferLength, INT* lpErrno)
#uselib "WS2_32.dll"
#cfunc global WSCEnumProtocols32 "WSCEnumProtocols32" var, var, var, var
; res = WSCEnumProtocols32(lpiProtocols, lpProtocolBuffer, lpdwBufferLength, lpErrno)
; lpiProtocols : INT* optional -> "var"
; lpProtocolBuffer : WSAPROTOCOL_INFOW* out -> "var"
; lpdwBufferLength : DWORD* in/out -> "var"
; lpErrno : INT* 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 (
	ws2_32 = windows.NewLazySystemDLL("WS2_32.dll")
	procWSCEnumProtocols32 = ws2_32.NewProc("WSCEnumProtocols32")
)

// lpiProtocols (INT* optional), lpProtocolBuffer (WSAPROTOCOL_INFOW* out), lpdwBufferLength (DWORD* in/out), lpErrno (INT* out)
r1, _, err := procWSCEnumProtocols32.Call(
	uintptr(lpiProtocols),
	uintptr(lpProtocolBuffer),
	uintptr(lpdwBufferLength),
	uintptr(lpErrno),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function WSCEnumProtocols32(
  lpiProtocols: Pointer;   // INT* optional
  lpProtocolBuffer: Pointer;   // WSAPROTOCOL_INFOW* out
  lpdwBufferLength: Pointer;   // DWORD* in/out
  lpErrno: Pointer   // INT* out
): Integer; stdcall;
  external 'WS2_32.dll' name 'WSCEnumProtocols32';

result := DllCall("WS2_32\WSCEnumProtocols32"
    , "Ptr", lpiProtocols   ; INT* optional
    , "Ptr", lpProtocolBuffer   ; WSAPROTOCOL_INFOW* out
    , "Ptr", lpdwBufferLength   ; DWORD* in/out
    , "Ptr", lpErrno   ; INT* out
    , "Int")   ; return: INT

●WSCEnumProtocols32(lpiProtocols, lpProtocolBuffer, lpdwBufferLength, lpErrno) = DLL("WS2_32.dll", "int WSCEnumProtocols32(void*, void*, void*, void*)")
# 呼び出し: WSCEnumProtocols32(lpiProtocols, lpProtocolBuffer, lpdwBufferLength, lpErrno)
# lpiProtocols : INT* optional -> "void*"
# lpProtocolBuffer : WSAPROTOCOL_INFOW* out -> "void*"
# lpdwBufferLength : DWORD* in/out -> "void*"
# lpErrno : INT* 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)。