HcsOpenProcess

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

HRESULT HcsOpenProcess(
    HCS_SYSTEM computeSystem,
    DWORD processId,
    DWORD requestedAccess,
    HCS_PROCESS* process
);

<DllImport("computecore.dll", ExactSpelling:=True)>
Public Shared Function HcsOpenProcess(
    computeSystem As IntPtr,   ' HCS_SYSTEM
    processId As UInteger,   ' DWORD
    requestedAccess As UInteger,   ' DWORD
    process As IntPtr   ' HCS_PROCESS* out
) As Integer
End Function

' computeSystem : HCS_SYSTEM
' processId : DWORD
' requestedAccess : DWORD
' process : HCS_PROCESS* out
Declare PtrSafe Function HcsOpenProcess Lib "computecore" ( _
    ByVal computeSystem As LongPtr, _
    ByVal processId As Long, _
    ByVal requestedAccess As Long, _
    ByVal process 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

HcsOpenProcess = ctypes.windll.computecore.HcsOpenProcess
HcsOpenProcess.restype = ctypes.c_int
HcsOpenProcess.argtypes = [
    wintypes.HANDLE,  # computeSystem : HCS_SYSTEM
    wintypes.DWORD,  # processId : DWORD
    wintypes.DWORD,  # requestedAccess : DWORD
    ctypes.c_void_p,  # process : HCS_PROCESS* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('computecore.dll')
HcsOpenProcess = Fiddle::Function.new(
  lib['HcsOpenProcess'],
  [
    Fiddle::TYPE_VOIDP,  # computeSystem : HCS_SYSTEM
    -Fiddle::TYPE_INT,  # processId : DWORD
    -Fiddle::TYPE_INT,  # requestedAccess : DWORD
    Fiddle::TYPE_VOIDP,  # process : HCS_PROCESS* out
  ],
  Fiddle::TYPE_INT)

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

$sig = @"
[DllImport("computecore.dll")]
public static extern int HcsOpenProcess(IntPtr computeSystem, uint processId, uint requestedAccess, IntPtr process);
"@
$api = Add-Type -MemberDefinition $sig -Name 'computecore_HcsOpenProcess' -Namespace Win32 -PassThru
# $api::HcsOpenProcess(computeSystem, processId, requestedAccess, process)

#uselib "computecore.dll"
#func global HcsOpenProcess "HcsOpenProcess" sptr, sptr, sptr, sptr
; HcsOpenProcess computeSystem, processId, requestedAccess, process   ; 戻り値は stat
; computeSystem : HCS_SYSTEM -> "sptr"
; processId : DWORD -> "sptr"
; requestedAccess : DWORD -> "sptr"
; process : HCS_PROCESS* 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 HcsOpenProcess "HcsOpenProcess" sptr, int, int, sptr
; res = HcsOpenProcess(computeSystem, processId, requestedAccess, process)
; computeSystem : HCS_SYSTEM -> "sptr"
; processId : DWORD -> "int"
; requestedAccess : DWORD -> "int"
; process : HCS_PROCESS* out -> "sptr"

; HRESULT HcsOpenProcess(HCS_SYSTEM computeSystem, DWORD processId, DWORD requestedAccess, HCS_PROCESS* process)
#uselib "computecore.dll"
#cfunc global HcsOpenProcess "HcsOpenProcess" intptr, int, int, intptr
; res = HcsOpenProcess(computeSystem, processId, requestedAccess, process)
; computeSystem : HCS_SYSTEM -> "intptr"
; processId : DWORD -> "int"
; requestedAccess : DWORD -> "int"
; process : HCS_PROCESS* out -> "intptr"

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

var (
	computecore = windows.NewLazySystemDLL("computecore.dll")
	procHcsOpenProcess = computecore.NewProc("HcsOpenProcess")
)

// computeSystem (HCS_SYSTEM), processId (DWORD), requestedAccess (DWORD), process (HCS_PROCESS* out)
r1, _, err := procHcsOpenProcess.Call(
	uintptr(computeSystem),
	uintptr(processId),
	uintptr(requestedAccess),
	uintptr(process),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function HcsOpenProcess(
  computeSystem: THandle;   // HCS_SYSTEM
  processId: DWORD;   // DWORD
  requestedAccess: DWORD;   // DWORD
  process: Pointer   // HCS_PROCESS* out
): Integer; stdcall;
  external 'computecore.dll' name 'HcsOpenProcess';

result := DllCall("computecore\HcsOpenProcess"
    , "Ptr", computeSystem   ; HCS_SYSTEM
    , "UInt", processId   ; DWORD
    , "UInt", requestedAccess   ; DWORD
    , "Ptr", process   ; HCS_PROCESS* out
    , "Int")   ; return: HRESULT

●HcsOpenProcess(computeSystem, processId, requestedAccess, process) = DLL("computecore.dll", "int HcsOpenProcess(void*, dword, dword, void*)")
# 呼び出し: HcsOpenProcess(computeSystem, processId, requestedAccess, process)
# computeSystem : HCS_SYSTEM -> "void*"
# processId : DWORD -> "dword"
# requestedAccess : DWORD -> "dword"
# process : HCS_PROCESS* 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)。