HdvReadGuestMemory

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

HRESULT HdvReadGuestMemory(
    void* requestor,
    ULONGLONG guestPhysicalAddress,
    DWORD byteCount,
    BYTE* buffer
);

<DllImport("vmdevicehost.dll", ExactSpelling:=True)>
Public Shared Function HdvReadGuestMemory(
    requestor As IntPtr,   ' void*
    guestPhysicalAddress As ULong,   ' ULONGLONG
    byteCount As UInteger,   ' DWORD
    buffer As IntPtr   ' BYTE* out
) As Integer
End Function

' requestor : void*
' guestPhysicalAddress : ULONGLONG
' byteCount : DWORD
' buffer : BYTE* out
Declare PtrSafe Function HdvReadGuestMemory Lib "vmdevicehost" ( _
    ByVal requestor As LongPtr, _
    ByVal guestPhysicalAddress As LongLong, _
    ByVal byteCount As Long, _
    ByVal buffer 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

HdvReadGuestMemory = ctypes.windll.vmdevicehost.HdvReadGuestMemory
HdvReadGuestMemory.restype = ctypes.c_int
HdvReadGuestMemory.argtypes = [
    ctypes.POINTER(None),  # requestor : void*
    ctypes.c_ulonglong,  # guestPhysicalAddress : ULONGLONG
    wintypes.DWORD,  # byteCount : DWORD
    ctypes.POINTER(ctypes.c_ubyte),  # buffer : BYTE* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('vmdevicehost.dll')
HdvReadGuestMemory = Fiddle::Function.new(
  lib['HdvReadGuestMemory'],
  [
    Fiddle::TYPE_VOIDP,  # requestor : void*
    -Fiddle::TYPE_LONG_LONG,  # guestPhysicalAddress : ULONGLONG
    -Fiddle::TYPE_INT,  # byteCount : DWORD
    Fiddle::TYPE_VOIDP,  # buffer : BYTE* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "vmdevicehost")]
extern "system" {
    fn HdvReadGuestMemory(
        requestor: *mut (),  // void*
        guestPhysicalAddress: u64,  // ULONGLONG
        byteCount: u32,  // DWORD
        buffer: *mut u8  // BYTE* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("vmdevicehost.dll")]
public static extern int HdvReadGuestMemory(IntPtr requestor, ulong guestPhysicalAddress, uint byteCount, IntPtr buffer);
"@
$api = Add-Type -MemberDefinition $sig -Name 'vmdevicehost_HdvReadGuestMemory' -Namespace Win32 -PassThru
# $api::HdvReadGuestMemory(requestor, guestPhysicalAddress, byteCount, buffer)

#uselib "vmdevicehost.dll"
#func global HdvReadGuestMemory "HdvReadGuestMemory" sptr, sptr, sptr, sptr
; HdvReadGuestMemory requestor, guestPhysicalAddress, byteCount, varptr(buffer)   ; 戻り値は stat
; requestor : void* -> "sptr"
; guestPhysicalAddress : ULONGLONG -> "sptr"
; byteCount : DWORD -> "sptr"
; buffer : BYTE* out -> "sptr"
; ※HSP3.7は int64 引数(64bit値渡し)に非対応です。
; ※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 (
	vmdevicehost = windows.NewLazySystemDLL("vmdevicehost.dll")
	procHdvReadGuestMemory = vmdevicehost.NewProc("HdvReadGuestMemory")
)

// requestor (void*), guestPhysicalAddress (ULONGLONG), byteCount (DWORD), buffer (BYTE* out)
r1, _, err := procHdvReadGuestMemory.Call(
	uintptr(requestor),
	uintptr(guestPhysicalAddress),
	uintptr(byteCount),
	uintptr(buffer),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function HdvReadGuestMemory(
  requestor: Pointer;   // void*
  guestPhysicalAddress: UInt64;   // ULONGLONG
  byteCount: DWORD;   // DWORD
  buffer: Pointer   // BYTE* out
): Integer; stdcall;
  external 'vmdevicehost.dll' name 'HdvReadGuestMemory';

result := DllCall("vmdevicehost\HdvReadGuestMemory"
    , "Ptr", requestor   ; void*
    , "Int64", guestPhysicalAddress   ; ULONGLONG
    , "UInt", byteCount   ; DWORD
    , "Ptr", buffer   ; BYTE* out
    , "Int")   ; return: HRESULT

●HdvReadGuestMemory(requestor, guestPhysicalAddress, byteCount, buffer) = DLL("vmdevicehost.dll", "int HdvReadGuestMemory(void*, qword, dword, void*)")
# 呼び出し: HdvReadGuestMemory(requestor, guestPhysicalAddress, byteCount, buffer)
# requestor : void* -> "void*"
# guestPhysicalAddress : ULONGLONG -> "qword"
# byteCount : DWORD -> "dword"
# buffer : BYTE* 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 "vmdevicehost" fn HdvReadGuestMemory(
    requestor: ?*anyopaque, // void*
    guestPhysicalAddress: u64, // ULONGLONG
    byteCount: u32, // DWORD
    buffer: [*c]u8 // BYTE* out
) callconv(std.os.windows.WINAPI) i32;

proc HdvReadGuestMemory(
    requestor: pointer,  # void*
    guestPhysicalAddress: uint64,  # ULONGLONG
    byteCount: uint32,  # DWORD
    buffer: ptr uint8  # BYTE* out
): int32 {.importc: "HdvReadGuestMemory", stdcall, dynlib: "vmdevicehost.dll".}

pragma(lib, "vmdevicehost");
extern(Windows)
int HdvReadGuestMemory(
    void* requestor,   // void*
    ulong guestPhysicalAddress,   // ULONGLONG
    uint byteCount,   // DWORD
    ubyte* buffer   // BYTE* out
);

ccall((:HdvReadGuestMemory, "vmdevicehost.dll"), stdcall, Int32,
      (Ptr{Cvoid}, UInt64, UInt32, Ptr{UInt8}),
      requestor, guestPhysicalAddress, byteCount, buffer)
# requestor : void* -> Ptr{Cvoid}
# guestPhysicalAddress : ULONGLONG -> UInt64
# byteCount : DWORD -> UInt32
# buffer : BYTE* out -> Ptr{UInt8}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t HdvReadGuestMemory(
    void* requestor,
    uint64_t guestPhysicalAddress,
    uint32_t byteCount,
    uint8_t* buffer);
]]
local vmdevicehost = ffi.load("vmdevicehost")
-- vmdevicehost.HdvReadGuestMemory(requestor, guestPhysicalAddress, byteCount, buffer)
-- requestor : void*
-- guestPhysicalAddress : ULONGLONG
-- byteCount : DWORD
-- buffer : BYTE* 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('vmdevicehost.dll');
const HdvReadGuestMemory = lib.func('__stdcall', 'HdvReadGuestMemory', 'int32_t', ['void *', 'uint64_t', 'uint32_t', 'uint8_t *']);
// HdvReadGuestMemory(requestor, guestPhysicalAddress, byteCount, buffer)
// requestor : void* -> 'void *'
// guestPhysicalAddress : ULONGLONG -> 'uint64_t'
// byteCount : DWORD -> 'uint32_t'
// buffer : BYTE* out -> 'uint8_t *'
// 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("vmdevicehost.dll", {
  HdvReadGuestMemory: { parameters: ["pointer", "u64", "u32", "pointer"], result: "i32" },
});
// lib.symbols.HdvReadGuestMemory(requestor, guestPhysicalAddress, byteCount, buffer)
// requestor : void* -> "pointer"
// guestPhysicalAddress : ULONGLONG -> "u64"
// byteCount : DWORD -> "u32"
// buffer : BYTE* 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
int32_t HdvReadGuestMemory(
    void* requestor,
    uint64_t guestPhysicalAddress,
    uint32_t byteCount,
    uint8_t* buffer);
C, "vmdevicehost.dll");
// $ffi->HdvReadGuestMemory(requestor, guestPhysicalAddress, byteCount, buffer);
// requestor : void*
// guestPhysicalAddress : ULONGLONG
// byteCount : DWORD
// buffer : BYTE* 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 Vmdevicehost extends StdCallLibrary {
    Vmdevicehost INSTANCE = Native.load("vmdevicehost", Vmdevicehost.class);
    int HdvReadGuestMemory(
        Pointer requestor,   // void*
        long guestPhysicalAddress,   // ULONGLONG
        int byteCount,   // DWORD
        byte[] buffer   // BYTE* out
    );
}

@[Link("vmdevicehost")]
lib Libvmdevicehost
  fun HdvReadGuestMemory = HdvReadGuestMemory(
    requestor : Void*,   # void*
    guestPhysicalAddress : UInt64,   # ULONGLONG
    byteCount : UInt32,   # DWORD
    buffer : UInt8*   # BYTE* out
  ) : Int32
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 HdvReadGuestMemoryNative = Int32 Function(Pointer<Void>, Uint64, Uint32, Pointer<Uint8>);
typedef HdvReadGuestMemoryDart = int Function(Pointer<Void>, int, int, Pointer<Uint8>);
final HdvReadGuestMemory = DynamicLibrary.open('vmdevicehost.dll')
    .lookupFunction<HdvReadGuestMemoryNative, HdvReadGuestMemoryDart>('HdvReadGuestMemory');
// requestor : void* -> Pointer<Void>
// guestPhysicalAddress : ULONGLONG -> Uint64
// byteCount : DWORD -> Uint32
// buffer : BYTE* out -> Pointer<Uint8>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function HdvReadGuestMemory(
  requestor: Pointer;   // void*
  guestPhysicalAddress: UInt64;   // ULONGLONG
  byteCount: DWORD;   // DWORD
  buffer: Pointer   // BYTE* out
): Integer; stdcall;
  external 'vmdevicehost.dll' name 'HdvReadGuestMemory';

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

foreign import stdcall safe "HdvReadGuestMemory"
  c_HdvReadGuestMemory :: Ptr () -> Word64 -> Word32 -> Ptr Word8 -> IO Int32
-- requestor : void* -> Ptr ()
-- guestPhysicalAddress : ULONGLONG -> Word64
-- byteCount : DWORD -> Word32
-- buffer : BYTE* out -> Ptr Word8
-- 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 hdvreadguestmemory =
  foreign "HdvReadGuestMemory"
    ((ptr void) @-> uint64_t @-> uint32_t @-> (ptr uint8_t) @-> returning int32_t)
(* requestor : void* -> (ptr void) *)
(* guestPhysicalAddress : ULONGLONG -> uint64_t *)
(* byteCount : DWORD -> uint32_t *)
(* buffer : BYTE* out -> (ptr uint8_t) *)
(* 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 vmdevicehost (t "vmdevicehost.dll"))
(cffi:use-foreign-library vmdevicehost)

(cffi:defcfun ("HdvReadGuestMemory" hdv-read-guest-memory :convention :stdcall) :int32
  (requestor :pointer)   ; void*
  (guest-physical-address :uint64)   ; ULONGLONG
  (byte-count :uint32)   ; DWORD
  (buffer :pointer))   ; BYTE* out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $HdvReadGuestMemory = Win32::API::More->new('vmdevicehost',
    'int HdvReadGuestMemory(LPVOID requestor, UINT64 guestPhysicalAddress, DWORD byteCount, LPVOID buffer)');
# my $ret = $HdvReadGuestMemory->Call($requestor, $guestPhysicalAddress, $byteCount, $buffer);
# requestor : void* -> LPVOID
# guestPhysicalAddress : ULONGLONG -> UINT64
# byteCount : DWORD -> DWORD
# buffer : BYTE* out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。