PxeDhcpAppendOption

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

DWORD PxeDhcpAppendOption(
    void* pReplyPacket,
    DWORD uMaxReplyPacketLen,
    DWORD* puReplyPacketLen,
    BYTE bOption,
    BYTE bOptionLen,
    void* pValue   // optional
);

<DllImport("WDSPXE.dll", ExactSpelling:=True)>
Public Shared Function PxeDhcpAppendOption(
    pReplyPacket As IntPtr,   ' void* in/out
    uMaxReplyPacketLen As UInteger,   ' DWORD
    ByRef puReplyPacketLen As UInteger,   ' DWORD* in/out
    bOption As Byte,   ' BYTE
    bOptionLen As Byte,   ' BYTE
    pValue As IntPtr   ' void* optional
) As UInteger
End Function

' pReplyPacket : void* in/out
' uMaxReplyPacketLen : DWORD
' puReplyPacketLen : DWORD* in/out
' bOption : BYTE
' bOptionLen : BYTE
' pValue : void* optional
Declare PtrSafe Function PxeDhcpAppendOption Lib "wdspxe" ( _
    ByVal pReplyPacket As LongPtr, _
    ByVal uMaxReplyPacketLen As Long, _
    ByRef puReplyPacketLen As Long, _
    ByVal bOption As Byte, _
    ByVal bOptionLen As Byte, _
    ByVal pValue As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

PxeDhcpAppendOption = ctypes.windll.wdspxe.PxeDhcpAppendOption
PxeDhcpAppendOption.restype = wintypes.DWORD
PxeDhcpAppendOption.argtypes = [
    ctypes.POINTER(None),  # pReplyPacket : void* in/out
    wintypes.DWORD,  # uMaxReplyPacketLen : DWORD
    ctypes.POINTER(wintypes.DWORD),  # puReplyPacketLen : DWORD* in/out
    ctypes.c_ubyte,  # bOption : BYTE
    ctypes.c_ubyte,  # bOptionLen : BYTE
    ctypes.POINTER(None),  # pValue : void* optional
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WDSPXE.dll')
PxeDhcpAppendOption = Fiddle::Function.new(
  lib['PxeDhcpAppendOption'],
  [
    Fiddle::TYPE_VOIDP,  # pReplyPacket : void* in/out
    -Fiddle::TYPE_INT,  # uMaxReplyPacketLen : DWORD
    Fiddle::TYPE_VOIDP,  # puReplyPacketLen : DWORD* in/out
    -Fiddle::TYPE_CHAR,  # bOption : BYTE
    -Fiddle::TYPE_CHAR,  # bOptionLen : BYTE
    Fiddle::TYPE_VOIDP,  # pValue : void* optional
  ],
  -Fiddle::TYPE_INT)

#[link(name = "wdspxe")]
extern "system" {
    fn PxeDhcpAppendOption(
        pReplyPacket: *mut (),  // void* in/out
        uMaxReplyPacketLen: u32,  // DWORD
        puReplyPacketLen: *mut u32,  // DWORD* in/out
        bOption: u8,  // BYTE
        bOptionLen: u8,  // BYTE
        pValue: *mut ()  // void* optional
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("WDSPXE.dll")]
public static extern uint PxeDhcpAppendOption(IntPtr pReplyPacket, uint uMaxReplyPacketLen, ref uint puReplyPacketLen, byte bOption, byte bOptionLen, IntPtr pValue);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WDSPXE_PxeDhcpAppendOption' -Namespace Win32 -PassThru
# $api::PxeDhcpAppendOption(pReplyPacket, uMaxReplyPacketLen, puReplyPacketLen, bOption, bOptionLen, pValue)

#uselib "WDSPXE.dll"
#func global PxeDhcpAppendOption "PxeDhcpAppendOption" sptr, sptr, sptr, sptr, sptr, sptr
; PxeDhcpAppendOption pReplyPacket, uMaxReplyPacketLen, varptr(puReplyPacketLen), bOption, bOptionLen, pValue   ; 戻り値は stat
; pReplyPacket : void* in/out -> "sptr"
; uMaxReplyPacketLen : DWORD -> "sptr"
; puReplyPacketLen : DWORD* in/out -> "sptr"
; bOption : BYTE -> "sptr"
; bOptionLen : BYTE -> "sptr"
; pValue : void* optional -> "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 "WDSPXE.dll"
#cfunc global PxeDhcpAppendOption "PxeDhcpAppendOption" sptr, int, var, int, int, sptr
; res = PxeDhcpAppendOption(pReplyPacket, uMaxReplyPacketLen, puReplyPacketLen, bOption, bOptionLen, pValue)
; pReplyPacket : void* in/out -> "sptr"
; uMaxReplyPacketLen : DWORD -> "int"
; puReplyPacketLen : DWORD* in/out -> "var"
; bOption : BYTE -> "int"
; bOptionLen : BYTE -> "int"
; pValue : void* optional -> "sptr"
; ※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 PxeDhcpAppendOption(void* pReplyPacket, DWORD uMaxReplyPacketLen, DWORD* puReplyPacketLen, BYTE bOption, BYTE bOptionLen, void* pValue)
#uselib "WDSPXE.dll"
#cfunc global PxeDhcpAppendOption "PxeDhcpAppendOption" intptr, int, var, int, int, intptr
; res = PxeDhcpAppendOption(pReplyPacket, uMaxReplyPacketLen, puReplyPacketLen, bOption, bOptionLen, pValue)
; pReplyPacket : void* in/out -> "intptr"
; uMaxReplyPacketLen : DWORD -> "int"
; puReplyPacketLen : DWORD* in/out -> "var"
; bOption : BYTE -> "int"
; bOptionLen : BYTE -> "int"
; pValue : void* optional -> "intptr"
; ※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 (
	wdspxe = windows.NewLazySystemDLL("WDSPXE.dll")
	procPxeDhcpAppendOption = wdspxe.NewProc("PxeDhcpAppendOption")
)

// pReplyPacket (void* in/out), uMaxReplyPacketLen (DWORD), puReplyPacketLen (DWORD* in/out), bOption (BYTE), bOptionLen (BYTE), pValue (void* optional)
r1, _, err := procPxeDhcpAppendOption.Call(
	uintptr(pReplyPacket),
	uintptr(uMaxReplyPacketLen),
	uintptr(puReplyPacketLen),
	uintptr(bOption),
	uintptr(bOptionLen),
	uintptr(pValue),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function PxeDhcpAppendOption(
  pReplyPacket: Pointer;   // void* in/out
  uMaxReplyPacketLen: DWORD;   // DWORD
  puReplyPacketLen: Pointer;   // DWORD* in/out
  bOption: Byte;   // BYTE
  bOptionLen: Byte;   // BYTE
  pValue: Pointer   // void* optional
): DWORD; stdcall;
  external 'WDSPXE.dll' name 'PxeDhcpAppendOption';

result := DllCall("WDSPXE\PxeDhcpAppendOption"
    , "Ptr", pReplyPacket   ; void* in/out
    , "UInt", uMaxReplyPacketLen   ; DWORD
    , "Ptr", puReplyPacketLen   ; DWORD* in/out
    , "UChar", bOption   ; BYTE
    , "UChar", bOptionLen   ; BYTE
    , "Ptr", pValue   ; void* optional
    , "UInt")   ; return: DWORD

●PxeDhcpAppendOption(pReplyPacket, uMaxReplyPacketLen, puReplyPacketLen, bOption, bOptionLen, pValue) = DLL("WDSPXE.dll", "dword PxeDhcpAppendOption(void*, dword, void*, byte, byte, void*)")
# 呼び出し: PxeDhcpAppendOption(pReplyPacket, uMaxReplyPacketLen, puReplyPacketLen, bOption, bOptionLen, pValue)
# pReplyPacket : void* in/out -> "void*"
# uMaxReplyPacketLen : DWORD -> "dword"
# puReplyPacketLen : DWORD* in/out -> "void*"
# bOption : BYTE -> "byte"
# bOptionLen : BYTE -> "byte"
# pValue : void* optional -> "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)。