HcsOpenComputeSystemInNamespace

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

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

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

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

HcsOpenComputeSystemInNamespace = ctypes.windll.computecore.HcsOpenComputeSystemInNamespace
HcsOpenComputeSystemInNamespace.restype = ctypes.c_int
HcsOpenComputeSystemInNamespace.argtypes = [
    wintypes.LPCWSTR,  # idNamespace : LPCWSTR
    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')
HcsOpenComputeSystemInNamespace = Fiddle::Function.new(
  lib['HcsOpenComputeSystemInNamespace'],
  [
    Fiddle::TYPE_VOIDP,  # idNamespace : LPCWSTR
    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 HcsOpenComputeSystemInNamespace(
        idNamespace: *const u16,  // LPCWSTR
        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 HcsOpenComputeSystemInNamespace([MarshalAs(UnmanagedType.LPWStr)] string idNamespace, [MarshalAs(UnmanagedType.LPWStr)] string id, uint requestedAccess, IntPtr computeSystem);
"@
$api = Add-Type -MemberDefinition $sig -Name 'computecore_HcsOpenComputeSystemInNamespace' -Namespace Win32 -PassThru
# $api::HcsOpenComputeSystemInNamespace(idNamespace, id, requestedAccess, computeSystem)

#uselib "computecore.dll"
#func global HcsOpenComputeSystemInNamespace "HcsOpenComputeSystemInNamespace" sptr, sptr, sptr, sptr
; HcsOpenComputeSystemInNamespace idNamespace, id, requestedAccess, computeSystem   ; 戻り値は stat
; idNamespace : LPCWSTR -> "sptr"
; 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 HcsOpenComputeSystemInNamespace "HcsOpenComputeSystemInNamespace" wstr, wstr, int, sptr
; res = HcsOpenComputeSystemInNamespace(idNamespace, id, requestedAccess, computeSystem)
; idNamespace : LPCWSTR -> "wstr"
; id : LPCWSTR -> "wstr"
; requestedAccess : DWORD -> "int"
; computeSystem : HCS_SYSTEM* out -> "sptr"

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

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

var (
	computecore = windows.NewLazySystemDLL("computecore.dll")
	procHcsOpenComputeSystemInNamespace = computecore.NewProc("HcsOpenComputeSystemInNamespace")
)

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

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

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

●HcsOpenComputeSystemInNamespace(idNamespace, id, requestedAccess, computeSystem) = DLL("computecore.dll", "int HcsOpenComputeSystemInNamespace(char*, char*, dword, void*)")
# 呼び出し: HcsOpenComputeSystemInNamespace(idNamespace, id, requestedAccess, computeSystem)
# idNamespace : LPCWSTR -> "char*"
# 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)。