WHvReadVpciDeviceRegister

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

HRESULT WHvReadVpciDeviceRegister(
    WHV_PARTITION_HANDLE Partition,
    ULONGLONG LogicalDeviceId,
    const WHV_VPCI_DEVICE_REGISTER* Register,
    void* Data
);

<DllImport("WinHvPlatform.dll", ExactSpelling:=True)>
Public Shared Function WHvReadVpciDeviceRegister(
    Partition As IntPtr,   ' WHV_PARTITION_HANDLE
    LogicalDeviceId As ULong,   ' ULONGLONG
    Register As IntPtr,   ' WHV_VPCI_DEVICE_REGISTER*
    Data As IntPtr   ' void* out
) As Integer
End Function

' Partition : WHV_PARTITION_HANDLE
' LogicalDeviceId : ULONGLONG
' Register : WHV_VPCI_DEVICE_REGISTER*
' Data : void* out
Declare PtrSafe Function WHvReadVpciDeviceRegister Lib "winhvplatform" ( _
    ByVal Partition As LongPtr, _
    ByVal LogicalDeviceId As LongLong, _
    ByVal Register As LongPtr, _
    ByVal Data 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

WHvReadVpciDeviceRegister = ctypes.windll.winhvplatform.WHvReadVpciDeviceRegister
WHvReadVpciDeviceRegister.restype = ctypes.c_int
WHvReadVpciDeviceRegister.argtypes = [
    ctypes.c_ssize_t,  # Partition : WHV_PARTITION_HANDLE
    ctypes.c_ulonglong,  # LogicalDeviceId : ULONGLONG
    ctypes.c_void_p,  # Register : WHV_VPCI_DEVICE_REGISTER*
    ctypes.POINTER(None),  # Data : void* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WinHvPlatform.dll')
WHvReadVpciDeviceRegister = Fiddle::Function.new(
  lib['WHvReadVpciDeviceRegister'],
  [
    Fiddle::TYPE_INTPTR_T,  # Partition : WHV_PARTITION_HANDLE
    -Fiddle::TYPE_LONG_LONG,  # LogicalDeviceId : ULONGLONG
    Fiddle::TYPE_VOIDP,  # Register : WHV_VPCI_DEVICE_REGISTER*
    Fiddle::TYPE_VOIDP,  # Data : void* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "winhvplatform")]
extern "system" {
    fn WHvReadVpciDeviceRegister(
        Partition: isize,  // WHV_PARTITION_HANDLE
        LogicalDeviceId: u64,  // ULONGLONG
        Register: *const WHV_VPCI_DEVICE_REGISTER,  // WHV_VPCI_DEVICE_REGISTER*
        Data: *mut ()  // void* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("WinHvPlatform.dll")]
public static extern int WHvReadVpciDeviceRegister(IntPtr Partition, ulong LogicalDeviceId, IntPtr Register, IntPtr Data);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WinHvPlatform_WHvReadVpciDeviceRegister' -Namespace Win32 -PassThru
# $api::WHvReadVpciDeviceRegister(Partition, LogicalDeviceId, Register, Data)

#uselib "WinHvPlatform.dll"
#func global WHvReadVpciDeviceRegister "WHvReadVpciDeviceRegister" sptr, sptr, sptr, sptr
; WHvReadVpciDeviceRegister Partition, LogicalDeviceId, varptr(Register), Data   ; 戻り値は stat
; Partition : WHV_PARTITION_HANDLE -> "sptr"
; LogicalDeviceId : ULONGLONG -> "sptr"
; Register : WHV_VPCI_DEVICE_REGISTER* -> "sptr"
; Data : void* 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 (
	winhvplatform = windows.NewLazySystemDLL("WinHvPlatform.dll")
	procWHvReadVpciDeviceRegister = winhvplatform.NewProc("WHvReadVpciDeviceRegister")
)

// Partition (WHV_PARTITION_HANDLE), LogicalDeviceId (ULONGLONG), Register (WHV_VPCI_DEVICE_REGISTER*), Data (void* out)
r1, _, err := procWHvReadVpciDeviceRegister.Call(
	uintptr(Partition),
	uintptr(LogicalDeviceId),
	uintptr(Register),
	uintptr(Data),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function WHvReadVpciDeviceRegister(
  Partition: NativeInt;   // WHV_PARTITION_HANDLE
  LogicalDeviceId: UInt64;   // ULONGLONG
  Register: Pointer;   // WHV_VPCI_DEVICE_REGISTER*
  Data: Pointer   // void* out
): Integer; stdcall;
  external 'WinHvPlatform.dll' name 'WHvReadVpciDeviceRegister';

result := DllCall("WinHvPlatform\WHvReadVpciDeviceRegister"
    , "Ptr", Partition   ; WHV_PARTITION_HANDLE
    , "Int64", LogicalDeviceId   ; ULONGLONG
    , "Ptr", Register   ; WHV_VPCI_DEVICE_REGISTER*
    , "Ptr", Data   ; void* out
    , "Int")   ; return: HRESULT

●WHvReadVpciDeviceRegister(Partition, LogicalDeviceId, Register, Data) = DLL("WinHvPlatform.dll", "int WHvReadVpciDeviceRegister(int, qword, void*, void*)")
# 呼び出し: WHvReadVpciDeviceRegister(Partition, LogicalDeviceId, Register, Data)
# Partition : WHV_PARTITION_HANDLE -> "int"
# LogicalDeviceId : ULONGLONG -> "qword"
# Register : WHV_VPCI_DEVICE_REGISTER* -> "void*"
# Data : void* 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 "winhvplatform" fn WHvReadVpciDeviceRegister(
    Partition: isize, // WHV_PARTITION_HANDLE
    LogicalDeviceId: u64, // ULONGLONG
    Register: [*c]WHV_VPCI_DEVICE_REGISTER, // WHV_VPCI_DEVICE_REGISTER*
    Data: ?*anyopaque // void* out
) callconv(std.os.windows.WINAPI) i32;

proc WHvReadVpciDeviceRegister(
    Partition: int,  # WHV_PARTITION_HANDLE
    LogicalDeviceId: uint64,  # ULONGLONG
    Register: ptr WHV_VPCI_DEVICE_REGISTER,  # WHV_VPCI_DEVICE_REGISTER*
    Data: pointer  # void* out
): int32 {.importc: "WHvReadVpciDeviceRegister", stdcall, dynlib: "WinHvPlatform.dll".}

pragma(lib, "winhvplatform");
extern(Windows)
int WHvReadVpciDeviceRegister(
    ptrdiff_t Partition,   // WHV_PARTITION_HANDLE
    ulong LogicalDeviceId,   // ULONGLONG
    WHV_VPCI_DEVICE_REGISTER* Register,   // WHV_VPCI_DEVICE_REGISTER*
    void* Data   // void* out
);

ccall((:WHvReadVpciDeviceRegister, "WinHvPlatform.dll"), stdcall, Int32,
      (Int, UInt64, Ptr{WHV_VPCI_DEVICE_REGISTER}, Ptr{Cvoid}),
      Partition, LogicalDeviceId, Register, Data)
# Partition : WHV_PARTITION_HANDLE -> Int
# LogicalDeviceId : ULONGLONG -> UInt64
# Register : WHV_VPCI_DEVICE_REGISTER* -> Ptr{WHV_VPCI_DEVICE_REGISTER}
# Data : void* out -> Ptr{Cvoid}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t WHvReadVpciDeviceRegister(
    intptr_t Partition,
    uint64_t LogicalDeviceId,
    void* Register,
    void* Data);
]]
local winhvplatform = ffi.load("winhvplatform")
-- winhvplatform.WHvReadVpciDeviceRegister(Partition, LogicalDeviceId, Register, Data)
-- Partition : WHV_PARTITION_HANDLE
-- LogicalDeviceId : ULONGLONG
-- Register : WHV_VPCI_DEVICE_REGISTER*
-- Data : void* 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('WinHvPlatform.dll');
const WHvReadVpciDeviceRegister = lib.func('__stdcall', 'WHvReadVpciDeviceRegister', 'int32_t', ['intptr_t', 'uint64_t', 'void *', 'void *']);
// WHvReadVpciDeviceRegister(Partition, LogicalDeviceId, Register, Data)
// Partition : WHV_PARTITION_HANDLE -> 'intptr_t'
// LogicalDeviceId : ULONGLONG -> 'uint64_t'
// Register : WHV_VPCI_DEVICE_REGISTER* -> 'void *'
// Data : void* 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("WinHvPlatform.dll", {
  WHvReadVpciDeviceRegister: { parameters: ["isize", "u64", "pointer", "pointer"], result: "i32" },
});
// lib.symbols.WHvReadVpciDeviceRegister(Partition, LogicalDeviceId, Register, Data)
// Partition : WHV_PARTITION_HANDLE -> "isize"
// LogicalDeviceId : ULONGLONG -> "u64"
// Register : WHV_VPCI_DEVICE_REGISTER* -> "pointer"
// Data : void* 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 WHvReadVpciDeviceRegister(
    intptr_t Partition,
    uint64_t LogicalDeviceId,
    void* Register,
    void* Data);
C, "WinHvPlatform.dll");
// $ffi->WHvReadVpciDeviceRegister(Partition, LogicalDeviceId, Register, Data);
// Partition : WHV_PARTITION_HANDLE
// LogicalDeviceId : ULONGLONG
// Register : WHV_VPCI_DEVICE_REGISTER*
// Data : void* 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 Winhvplatform extends StdCallLibrary {
    Winhvplatform INSTANCE = Native.load("winhvplatform", Winhvplatform.class);
    int WHvReadVpciDeviceRegister(
        long Partition,   // WHV_PARTITION_HANDLE
        long LogicalDeviceId,   // ULONGLONG
        Pointer Register,   // WHV_VPCI_DEVICE_REGISTER*
        Pointer Data   // void* out
    );
}

@[Link("winhvplatform")]
lib LibWinHvPlatform
  fun WHvReadVpciDeviceRegister = WHvReadVpciDeviceRegister(
    Partition : LibC::SSizeT,   # WHV_PARTITION_HANDLE
    LogicalDeviceId : UInt64,   # ULONGLONG
    Register : WHV_VPCI_DEVICE_REGISTER*,   # WHV_VPCI_DEVICE_REGISTER*
    Data : Void*   # void* 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 WHvReadVpciDeviceRegisterNative = Int32 Function(IntPtr, Uint64, Pointer<Void>, Pointer<Void>);
typedef WHvReadVpciDeviceRegisterDart = int Function(int, int, Pointer<Void>, Pointer<Void>);
final WHvReadVpciDeviceRegister = DynamicLibrary.open('WinHvPlatform.dll')
    .lookupFunction<WHvReadVpciDeviceRegisterNative, WHvReadVpciDeviceRegisterDart>('WHvReadVpciDeviceRegister');
// Partition : WHV_PARTITION_HANDLE -> IntPtr
// LogicalDeviceId : ULONGLONG -> Uint64
// Register : WHV_VPCI_DEVICE_REGISTER* -> Pointer<Void>
// Data : void* out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function WHvReadVpciDeviceRegister(
  Partition: NativeInt;   // WHV_PARTITION_HANDLE
  LogicalDeviceId: UInt64;   // ULONGLONG
  Register: Pointer;   // WHV_VPCI_DEVICE_REGISTER*
  Data: Pointer   // void* out
): Integer; stdcall;
  external 'WinHvPlatform.dll' name 'WHvReadVpciDeviceRegister';

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

foreign import stdcall safe "WHvReadVpciDeviceRegister"
  c_WHvReadVpciDeviceRegister :: CIntPtr -> Word64 -> Ptr () -> Ptr () -> IO Int32
-- Partition : WHV_PARTITION_HANDLE -> CIntPtr
-- LogicalDeviceId : ULONGLONG -> Word64
-- Register : WHV_VPCI_DEVICE_REGISTER* -> Ptr ()
-- Data : void* 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 whvreadvpcideviceregister =
  foreign "WHvReadVpciDeviceRegister"
    (intptr_t @-> uint64_t @-> (ptr void) @-> (ptr void) @-> returning int32_t)
(* Partition : WHV_PARTITION_HANDLE -> intptr_t *)
(* LogicalDeviceId : ULONGLONG -> uint64_t *)
(* Register : WHV_VPCI_DEVICE_REGISTER* -> (ptr void) *)
(* Data : void* 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 winhvplatform (t "WinHvPlatform.dll"))
(cffi:use-foreign-library winhvplatform)

(cffi:defcfun ("WHvReadVpciDeviceRegister" whv-read-vpci-device-register :convention :stdcall) :int32
  (partition :int64)   ; WHV_PARTITION_HANDLE
  (logical-device-id :uint64)   ; ULONGLONG
  (register :pointer)   ; WHV_VPCI_DEVICE_REGISTER*
  (data :pointer))   ; void* out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $WHvReadVpciDeviceRegister = Win32::API::More->new('WinHvPlatform',
    'int WHvReadVpciDeviceRegister(LPARAM Partition, UINT64 LogicalDeviceId, LPVOID Register, LPVOID Data)');
# my $ret = $WHvReadVpciDeviceRegister->Call($Partition, $LogicalDeviceId, $Register, $Data);
# Partition : WHV_PARTITION_HANDLE -> LPARAM
# LogicalDeviceId : ULONGLONG -> UINT64
# Register : WHV_VPCI_DEVICE_REGISTER* -> LPVOID
# Data : void* out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。