HcsOpenComputeSystem

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

HRESULT HcsOpenComputeSystem(
    LPCWSTR id,
    DWORD requestedAccess,
    HCS_SYSTEM* computeSystem
);

<DllImport("computecore.dll", ExactSpelling:=True)>
Public Shared Function HcsOpenComputeSystem(
    <MarshalAs(UnmanagedType.LPWStr)> id As String,   ' LPCWSTR
    requestedAccess As UInteger,   ' DWORD
    computeSystem As IntPtr   ' HCS_SYSTEM* out
) As Integer
End Function

' id : LPCWSTR
' requestedAccess : DWORD
' computeSystem : HCS_SYSTEM* out
Declare PtrSafe Function HcsOpenComputeSystem Lib "computecore" ( _
    ByVal id As LongPtr, _
    ByVal requestedAccess As Long, _
    ByVal computeSystem 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

HcsOpenComputeSystem = ctypes.windll.computecore.HcsOpenComputeSystem
HcsOpenComputeSystem.restype = ctypes.c_int
HcsOpenComputeSystem.argtypes = [
    wintypes.LPCWSTR,  # id : LPCWSTR
    wintypes.DWORD,  # requestedAccess : DWORD
    ctypes.c_void_p,  # computeSystem : HCS_SYSTEM* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('computecore.dll')
HcsOpenComputeSystem = Fiddle::Function.new(
  lib['HcsOpenComputeSystem'],
  [
    Fiddle::TYPE_VOIDP,  # id : LPCWSTR
    -Fiddle::TYPE_INT,  # requestedAccess : DWORD
    Fiddle::TYPE_VOIDP,  # computeSystem : HCS_SYSTEM* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "computecore")]
extern "system" {
    fn HcsOpenComputeSystem(
        id: *const u16,  // LPCWSTR
        requestedAccess: u32,  // DWORD
        computeSystem: *mut *mut core::ffi::c_void  // HCS_SYSTEM* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("computecore.dll")]
public static extern int HcsOpenComputeSystem([MarshalAs(UnmanagedType.LPWStr)] string id, uint requestedAccess, IntPtr computeSystem);
"@
$api = Add-Type -MemberDefinition $sig -Name 'computecore_HcsOpenComputeSystem' -Namespace Win32 -PassThru
# $api::HcsOpenComputeSystem(id, requestedAccess, computeSystem)

#uselib "computecore.dll"
#func global HcsOpenComputeSystem "HcsOpenComputeSystem" sptr, sptr, sptr
; HcsOpenComputeSystem id, requestedAccess, computeSystem   ; 戻り値は stat
; id : LPCWSTR -> "sptr"
; requestedAccess : DWORD -> "sptr"
; computeSystem : HCS_SYSTEM* 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。

#uselib "computecore.dll"
#cfunc global HcsOpenComputeSystem "HcsOpenComputeSystem" wstr, int, sptr
; res = HcsOpenComputeSystem(id, requestedAccess, computeSystem)
; id : LPCWSTR -> "wstr"
; requestedAccess : DWORD -> "int"
; computeSystem : HCS_SYSTEM* out -> "sptr"

; HRESULT HcsOpenComputeSystem(LPCWSTR id, DWORD requestedAccess, HCS_SYSTEM* computeSystem)
#uselib "computecore.dll"
#cfunc global HcsOpenComputeSystem "HcsOpenComputeSystem" wstr, int, intptr
; res = HcsOpenComputeSystem(id, requestedAccess, computeSystem)
; id : LPCWSTR -> "wstr"
; requestedAccess : DWORD -> "int"
; computeSystem : HCS_SYSTEM* out -> "intptr"

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

var (
	computecore = windows.NewLazySystemDLL("computecore.dll")
	procHcsOpenComputeSystem = computecore.NewProc("HcsOpenComputeSystem")
)

// id (LPCWSTR), requestedAccess (DWORD), computeSystem (HCS_SYSTEM* out)
r1, _, err := procHcsOpenComputeSystem.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(id))),
	uintptr(requestedAccess),
	uintptr(computeSystem),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function HcsOpenComputeSystem(
  id: PWideChar;   // LPCWSTR
  requestedAccess: DWORD;   // DWORD
  computeSystem: Pointer   // HCS_SYSTEM* out
): Integer; stdcall;
  external 'computecore.dll' name 'HcsOpenComputeSystem';

result := DllCall("computecore\HcsOpenComputeSystem"
    , "WStr", id   ; LPCWSTR
    , "UInt", requestedAccess   ; DWORD
    , "Ptr", computeSystem   ; HCS_SYSTEM* out
    , "Int")   ; return: HRESULT

●HcsOpenComputeSystem(id, requestedAccess, computeSystem) = DLL("computecore.dll", "int HcsOpenComputeSystem(char*, dword, void*)")
# 呼び出し: HcsOpenComputeSystem(id, requestedAccess, computeSystem)
# id : LPCWSTR -> "char*"
# requestedAccess : DWORD -> "dword"
# computeSystem : HCS_SYSTEM* 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 "computecore" fn HcsOpenComputeSystem(
    id: [*c]const u16, // LPCWSTR
    requestedAccess: u32, // DWORD
    computeSystem: ?*anyopaque // HCS_SYSTEM* out
) callconv(std.os.windows.WINAPI) i32;

proc HcsOpenComputeSystem(
    id: WideCString,  # LPCWSTR
    requestedAccess: uint32,  # DWORD
    computeSystem: pointer  # HCS_SYSTEM* out
): int32 {.importc: "HcsOpenComputeSystem", stdcall, dynlib: "computecore.dll".}

pragma(lib, "computecore");
extern(Windows)
int HcsOpenComputeSystem(
    const(wchar)* id,   // LPCWSTR
    uint requestedAccess,   // DWORD
    void* computeSystem   // HCS_SYSTEM* out
);

ccall((:HcsOpenComputeSystem, "computecore.dll"), stdcall, Int32,
      (Cwstring, UInt32, Ptr{Cvoid}),
      id, requestedAccess, computeSystem)
# id : LPCWSTR -> Cwstring
# requestedAccess : DWORD -> UInt32
# computeSystem : HCS_SYSTEM* 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 HcsOpenComputeSystem(
    const uint16_t* id,
    uint32_t requestedAccess,
    void* computeSystem);
]]
local computecore = ffi.load("computecore")
-- computecore.HcsOpenComputeSystem(id, requestedAccess, computeSystem)
-- id : LPCWSTR
-- requestedAccess : DWORD
-- computeSystem : HCS_SYSTEM* 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('computecore.dll');
const HcsOpenComputeSystem = lib.func('__stdcall', 'HcsOpenComputeSystem', 'int32_t', ['str16', 'uint32_t', 'void *']);
// HcsOpenComputeSystem(id, requestedAccess, computeSystem)
// id : LPCWSTR -> 'str16'
// requestedAccess : DWORD -> 'uint32_t'
// computeSystem : HCS_SYSTEM* 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("computecore.dll", {
  HcsOpenComputeSystem: { parameters: ["buffer", "u32", "pointer"], result: "i32" },
});
// lib.symbols.HcsOpenComputeSystem(id, requestedAccess, computeSystem)
// id : LPCWSTR -> "buffer"
// requestedAccess : DWORD -> "u32"
// computeSystem : HCS_SYSTEM* 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 HcsOpenComputeSystem(
    const uint16_t* id,
    uint32_t requestedAccess,
    void* computeSystem);
C, "computecore.dll");
// $ffi->HcsOpenComputeSystem(id, requestedAccess, computeSystem);
// id : LPCWSTR
// requestedAccess : DWORD
// computeSystem : HCS_SYSTEM* 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 Computecore extends StdCallLibrary {
    Computecore INSTANCE = Native.load("computecore", Computecore.class);
    int HcsOpenComputeSystem(
        WString id,   // LPCWSTR
        int requestedAccess,   // DWORD
        Pointer computeSystem   // HCS_SYSTEM* out
    );
}

@[Link("computecore")]
lib Libcomputecore
  fun HcsOpenComputeSystem = HcsOpenComputeSystem(
    id : UInt16*,   # LPCWSTR
    requestedAccess : UInt32,   # DWORD
    computeSystem : Void*   # HCS_SYSTEM* 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 HcsOpenComputeSystemNative = Int32 Function(Pointer<Utf16>, Uint32, Pointer<Void>);
typedef HcsOpenComputeSystemDart = int Function(Pointer<Utf16>, int, Pointer<Void>);
final HcsOpenComputeSystem = DynamicLibrary.open('computecore.dll')
    .lookupFunction<HcsOpenComputeSystemNative, HcsOpenComputeSystemDart>('HcsOpenComputeSystem');
// id : LPCWSTR -> Pointer<Utf16>
// requestedAccess : DWORD -> Uint32
// computeSystem : HCS_SYSTEM* out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function HcsOpenComputeSystem(
  id: PWideChar;   // LPCWSTR
  requestedAccess: DWORD;   // DWORD
  computeSystem: Pointer   // HCS_SYSTEM* out
): Integer; stdcall;
  external 'computecore.dll' name 'HcsOpenComputeSystem';

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

foreign import stdcall safe "HcsOpenComputeSystem"
  c_HcsOpenComputeSystem :: CWString -> Word32 -> Ptr () -> IO Int32
-- id : LPCWSTR -> CWString
-- requestedAccess : DWORD -> Word32
-- computeSystem : HCS_SYSTEM* 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 hcsopencomputesystem =
  foreign "HcsOpenComputeSystem"
    ((ptr uint16_t) @-> uint32_t @-> (ptr void) @-> returning int32_t)
(* id : LPCWSTR -> (ptr uint16_t) *)
(* requestedAccess : DWORD -> uint32_t *)
(* computeSystem : HCS_SYSTEM* 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 computecore (t "computecore.dll"))
(cffi:use-foreign-library computecore)

(cffi:defcfun ("HcsOpenComputeSystem" hcs-open-compute-system :convention :stdcall) :int32
  (id (:string :encoding :utf-16le))   ; LPCWSTR
  (requested-access :uint32)   ; DWORD
  (compute-system :pointer))   ; HCS_SYSTEM* out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $HcsOpenComputeSystem = Win32::API::More->new('computecore',
    'int HcsOpenComputeSystem(LPCWSTR id, DWORD requestedAccess, HANDLE computeSystem)');
# my $ret = $HcsOpenComputeSystem->Call($id, $requestedAccess, $computeSystem);
# id : LPCWSTR -> LPCWSTR
# requestedAccess : DWORD -> DWORD
# computeSystem : HCS_SYSTEM* out -> HANDLE
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。