PxePacketAllocate

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

void* PxePacketAllocate(
    HANDLE hProvider,
    HANDLE hClientRequest,
    DWORD uSize
);

<DllImport("WDSPXE.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function PxePacketAllocate(
    hProvider As IntPtr,   ' HANDLE
    hClientRequest As IntPtr,   ' HANDLE
    uSize As UInteger   ' DWORD
) As IntPtr
End Function

' hProvider : HANDLE
' hClientRequest : HANDLE
' uSize : DWORD
Declare PtrSafe Function PxePacketAllocate Lib "wdspxe" ( _
    ByVal hProvider As LongPtr, _
    ByVal hClientRequest As LongPtr, _
    ByVal uSize As Long) As LongPtr
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

PxePacketAllocate = ctypes.windll.wdspxe.PxePacketAllocate
PxePacketAllocate.restype = ctypes.c_void_p
PxePacketAllocate.argtypes = [
    wintypes.HANDLE,  # hProvider : HANDLE
    wintypes.HANDLE,  # hClientRequest : HANDLE
    wintypes.DWORD,  # uSize : DWORD
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WDSPXE.dll')
PxePacketAllocate = Fiddle::Function.new(
  lib['PxePacketAllocate'],
  [
    Fiddle::TYPE_VOIDP,  # hProvider : HANDLE
    Fiddle::TYPE_VOIDP,  # hClientRequest : HANDLE
    -Fiddle::TYPE_INT,  # uSize : DWORD
  ],
  Fiddle::TYPE_VOIDP)

#[link(name = "wdspxe")]
extern "system" {
    fn PxePacketAllocate(
        hProvider: *mut core::ffi::c_void,  // HANDLE
        hClientRequest: *mut core::ffi::c_void,  // HANDLE
        uSize: u32  // DWORD
    ) -> *mut ();
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("WDSPXE.dll", SetLastError = true)]
public static extern IntPtr PxePacketAllocate(IntPtr hProvider, IntPtr hClientRequest, uint uSize);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WDSPXE_PxePacketAllocate' -Namespace Win32 -PassThru
# $api::PxePacketAllocate(hProvider, hClientRequest, uSize)

#uselib "WDSPXE.dll"
#func global PxePacketAllocate "PxePacketAllocate" sptr, sptr, sptr
; PxePacketAllocate hProvider, hClientRequest, uSize   ; 戻り値は stat
; hProvider : HANDLE -> "sptr"
; hClientRequest : HANDLE -> "sptr"
; uSize : DWORD -> "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 PxePacketAllocate "PxePacketAllocate" sptr, sptr, int
; res = PxePacketAllocate(hProvider, hClientRequest, uSize)
; hProvider : HANDLE -> "sptr"
; hClientRequest : HANDLE -> "sptr"
; uSize : DWORD -> "int"

; void* PxePacketAllocate(HANDLE hProvider, HANDLE hClientRequest, DWORD uSize)
#uselib "WDSPXE.dll"
#cfunc global PxePacketAllocate "PxePacketAllocate" intptr, intptr, int
; res = PxePacketAllocate(hProvider, hClientRequest, uSize)
; hProvider : HANDLE -> "intptr"
; hClientRequest : HANDLE -> "intptr"
; uSize : DWORD -> "int"

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

var (
	wdspxe = windows.NewLazySystemDLL("WDSPXE.dll")
	procPxePacketAllocate = wdspxe.NewProc("PxePacketAllocate")
)

// hProvider (HANDLE), hClientRequest (HANDLE), uSize (DWORD)
r1, _, err := procPxePacketAllocate.Call(
	uintptr(hProvider),
	uintptr(hClientRequest),
	uintptr(uSize),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // void*

function PxePacketAllocate(
  hProvider: THandle;   // HANDLE
  hClientRequest: THandle;   // HANDLE
  uSize: DWORD   // DWORD
): Pointer; stdcall;
  external 'WDSPXE.dll' name 'PxePacketAllocate';

result := DllCall("WDSPXE\PxePacketAllocate"
    , "Ptr", hProvider   ; HANDLE
    , "Ptr", hClientRequest   ; HANDLE
    , "UInt", uSize   ; DWORD
    , "Ptr")   ; return: void*

●PxePacketAllocate(hProvider, hClientRequest, uSize) = DLL("WDSPXE.dll", "void* PxePacketAllocate(void*, void*, dword)")
# 呼び出し: PxePacketAllocate(hProvider, hClientRequest, uSize)
# hProvider : HANDLE -> "void*"
# hClientRequest : HANDLE -> "void*"
# uSize : DWORD -> "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)。