NdrGetBuffer

// RPCRT4.dll
#include <windows.h>

BYTE* NdrGetBuffer(
    MIDL_STUB_MESSAGE* pStubMsg,
    DWORD BufferLength,
    void* Handle
);

<DllImport("RPCRT4.dll", ExactSpelling:=True)>
Public Shared Function NdrGetBuffer(
    pStubMsg As IntPtr,   ' MIDL_STUB_MESSAGE* in/out
    BufferLength As UInteger,   ' DWORD
    Handle As IntPtr   ' void* in/out
) As IntPtr
End Function

' pStubMsg : MIDL_STUB_MESSAGE* in/out
' BufferLength : DWORD
' Handle : void* in/out
Declare PtrSafe Function NdrGetBuffer Lib "rpcrt4" ( _
    ByVal pStubMsg As LongPtr, _
    ByVal BufferLength As Long, _
    ByVal Handle As LongPtr) As LongPtr
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

NdrGetBuffer = ctypes.windll.rpcrt4.NdrGetBuffer
NdrGetBuffer.restype = ctypes.c_void_p
NdrGetBuffer.argtypes = [
    ctypes.c_void_p,  # pStubMsg : MIDL_STUB_MESSAGE* in/out
    wintypes.DWORD,  # BufferLength : DWORD
    ctypes.POINTER(None),  # Handle : void* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('RPCRT4.dll')
NdrGetBuffer = Fiddle::Function.new(
  lib['NdrGetBuffer'],
  [
    Fiddle::TYPE_VOIDP,  # pStubMsg : MIDL_STUB_MESSAGE* in/out
    -Fiddle::TYPE_INT,  # BufferLength : DWORD
    Fiddle::TYPE_VOIDP,  # Handle : void* in/out
  ],
  Fiddle::TYPE_VOIDP)

#[link(name = "rpcrt4")]
extern "system" {
    fn NdrGetBuffer(
        pStubMsg: *mut MIDL_STUB_MESSAGE,  // MIDL_STUB_MESSAGE* in/out
        BufferLength: u32,  // DWORD
        Handle: *mut ()  // void* in/out
    ) -> *mut u8;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("RPCRT4.dll")]
public static extern IntPtr NdrGetBuffer(IntPtr pStubMsg, uint BufferLength, IntPtr Handle);
"@
$api = Add-Type -MemberDefinition $sig -Name 'RPCRT4_NdrGetBuffer' -Namespace Win32 -PassThru
# $api::NdrGetBuffer(pStubMsg, BufferLength, Handle)

#uselib "RPCRT4.dll"
#func global NdrGetBuffer "NdrGetBuffer" sptr, sptr, sptr
; NdrGetBuffer varptr(pStubMsg), BufferLength, Handle   ; 戻り値は stat
; pStubMsg : MIDL_STUB_MESSAGE* in/out -> "sptr"
; BufferLength : DWORD -> "sptr"
; Handle : void* 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。

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

var (
	rpcrt4 = windows.NewLazySystemDLL("RPCRT4.dll")
	procNdrGetBuffer = rpcrt4.NewProc("NdrGetBuffer")
)

// pStubMsg (MIDL_STUB_MESSAGE* in/out), BufferLength (DWORD), Handle (void* in/out)
r1, _, err := procNdrGetBuffer.Call(
	uintptr(pStubMsg),
	uintptr(BufferLength),
	uintptr(Handle),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BYTE*

function NdrGetBuffer(
  pStubMsg: Pointer;   // MIDL_STUB_MESSAGE* in/out
  BufferLength: DWORD;   // DWORD
  Handle: Pointer   // void* in/out
): Pointer; stdcall;
  external 'RPCRT4.dll' name 'NdrGetBuffer';

result := DllCall("RPCRT4\NdrGetBuffer"
    , "Ptr", pStubMsg   ; MIDL_STUB_MESSAGE* in/out
    , "UInt", BufferLength   ; DWORD
    , "Ptr", Handle   ; void* in/out
    , "Ptr")   ; return: BYTE*

●NdrGetBuffer(pStubMsg, BufferLength, Handle) = DLL("RPCRT4.dll", "void* NdrGetBuffer(void*, dword, void*)")
# 呼び出し: NdrGetBuffer(pStubMsg, BufferLength, Handle)
# pStubMsg : MIDL_STUB_MESSAGE* in/out -> "void*"
# BufferLength : DWORD -> "dword"
# Handle : void* 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)。

const std = @import("std");

extern "rpcrt4" fn NdrGetBuffer(
    pStubMsg: [*c]MIDL_STUB_MESSAGE, // MIDL_STUB_MESSAGE* in/out
    BufferLength: u32, // DWORD
    Handle: ?*anyopaque // void* in/out
) callconv(std.os.windows.WINAPI) [*c]u8;

proc NdrGetBuffer(
    pStubMsg: ptr MIDL_STUB_MESSAGE,  # MIDL_STUB_MESSAGE* in/out
    BufferLength: uint32,  # DWORD
    Handle: pointer  # void* in/out
): ptr uint8 {.importc: "NdrGetBuffer", stdcall, dynlib: "RPCRT4.dll".}

pragma(lib, "rpcrt4");
extern(Windows)
ubyte* NdrGetBuffer(
    MIDL_STUB_MESSAGE* pStubMsg,   // MIDL_STUB_MESSAGE* in/out
    uint BufferLength,   // DWORD
    void* Handle   // void* in/out
);

ccall((:NdrGetBuffer, "RPCRT4.dll"), stdcall, Ptr{UInt8},
      (Ptr{MIDL_STUB_MESSAGE}, UInt32, Ptr{Cvoid}),
      pStubMsg, BufferLength, Handle)
# pStubMsg : MIDL_STUB_MESSAGE* in/out -> Ptr{MIDL_STUB_MESSAGE}
# BufferLength : DWORD -> UInt32
# Handle : void* in/out -> Ptr{Cvoid}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
uint8_t* NdrGetBuffer(
    void* pStubMsg,
    uint32_t BufferLength,
    void* Handle);
]]
local rpcrt4 = ffi.load("rpcrt4")
-- rpcrt4.NdrGetBuffer(pStubMsg, BufferLength, Handle)
-- pStubMsg : MIDL_STUB_MESSAGE* in/out
-- BufferLength : DWORD
-- Handle : void* in/out
-- 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。

const koffi = require('koffi');
const lib = koffi.load('RPCRT4.dll');
const NdrGetBuffer = lib.func('__stdcall', 'NdrGetBuffer', 'uint8_t *', ['void *', 'uint32_t', 'void *']);
// NdrGetBuffer(pStubMsg, BufferLength, Handle)
// pStubMsg : MIDL_STUB_MESSAGE* in/out -> 'void *'
// BufferLength : DWORD -> 'uint32_t'
// Handle : void* in/out -> 'void *'
// 出力ポインタは koffi.out(...) で包む。構造体は koffi.struct で定義。

const lib = Deno.dlopen("RPCRT4.dll", {
  NdrGetBuffer: { parameters: ["pointer", "u32", "pointer"], result: "pointer" },
});
// lib.symbols.NdrGetBuffer(pStubMsg, BufferLength, Handle)
// pStubMsg : MIDL_STUB_MESSAGE* in/out -> "pointer"
// BufferLength : DWORD -> "u32"
// Handle : void* in/out -> "pointer"
// 文字列引数は "buffer"(NUL 終端のバイト列を Uint8Array で渡す)。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
uint8_t* NdrGetBuffer(
    void* pStubMsg,
    uint32_t BufferLength,
    void* Handle);
C, "RPCRT4.dll");
// $ffi->NdrGetBuffer(pStubMsg, BufferLength, Handle);
// pStubMsg : MIDL_STUB_MESSAGE* in/out
// BufferLength : DWORD
// Handle : void* in/out
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。

import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;

public interface Rpcrt4 extends StdCallLibrary {
    Rpcrt4 INSTANCE = Native.load("rpcrt4", Rpcrt4.class);
    Pointer NdrGetBuffer(
        Pointer pStubMsg,   // MIDL_STUB_MESSAGE* in/out
        int BufferLength,   // DWORD
        Pointer Handle   // void* in/out
    );
}

@[Link("rpcrt4")]
lib LibRPCRT4
  fun NdrGetBuffer = NdrGetBuffer(
    pStubMsg : MIDL_STUB_MESSAGE*,   # MIDL_STUB_MESSAGE* in/out
    BufferLength : UInt32,   # DWORD
    Handle : Void*   # void* in/out
  ) : UInt8*
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。

import 'dart:ffi';
import 'package:ffi/ffi.dart';

typedef NdrGetBufferNative = Pointer<Uint8> Function(Pointer<Void>, Uint32, Pointer<Void>);
typedef NdrGetBufferDart = Pointer<Uint8> Function(Pointer<Void>, int, Pointer<Void>);
final NdrGetBuffer = DynamicLibrary.open('RPCRT4.dll')
    .lookupFunction<NdrGetBufferNative, NdrGetBufferDart>('NdrGetBuffer');
// pStubMsg : MIDL_STUB_MESSAGE* in/out -> Pointer<Void>
// BufferLength : DWORD -> Uint32
// Handle : void* in/out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function NdrGetBuffer(
  pStubMsg: Pointer;   // MIDL_STUB_MESSAGE* in/out
  BufferLength: DWORD;   // DWORD
  Handle: Pointer   // void* in/out
): Pointer; stdcall;
  external 'RPCRT4.dll' name 'NdrGetBuffer';

import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "NdrGetBuffer"
  c_NdrGetBuffer :: Ptr () -> Word32 -> Ptr () -> IO (Ptr Word8)
-- pStubMsg : MIDL_STUB_MESSAGE* in/out -> Ptr ()
-- BufferLength : DWORD -> Word32
-- Handle : void* in/out -> Ptr ()
-- 要 GHC(Windows)。stdcall は x64 では ccall として扱われる。ブロックする API は safe 呼び出し推奨。

open Ctypes
open Foreign

let ndrgetbuffer =
  foreign "NdrGetBuffer"
    ((ptr void) @-> uint32_t @-> (ptr void) @-> returning (ptr uint8_t))
(* pStubMsg : MIDL_STUB_MESSAGE* in/out -> (ptr void) *)
(* BufferLength : DWORD -> uint32_t *)
(* Handle : void* in/out -> (ptr void) *)
(* foreign は cdecl 前提。x64 Windows では WINAPI と一致。構造体は ctypes structure を定義のこと。 *)

(cffi:define-foreign-library rpcrt4 (t "RPCRT4.dll"))
(cffi:use-foreign-library rpcrt4)

(cffi:defcfun ("NdrGetBuffer" ndr-get-buffer :convention :stdcall) :pointer
  (p-stub-msg :pointer)   ; MIDL_STUB_MESSAGE* in/out
  (buffer-length :uint32)   ; DWORD
  (handle :pointer))   ; void* in/out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $NdrGetBuffer = Win32::API::More->new('RPCRT4',
    'LPVOID NdrGetBuffer(LPVOID pStubMsg, DWORD BufferLength, LPVOID Handle)');
# my $ret = $NdrGetBuffer->Call($pStubMsg, $BufferLength, $Handle);
# pStubMsg : MIDL_STUB_MESSAGE* in/out -> LPVOID
# BufferLength : DWORD -> DWORD
# Handle : void* in/out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。