GetProcessDefaultCpuSetMasks

// KERNEL32.dll
#include <windows.h>

BOOL GetProcessDefaultCpuSetMasks(
    HANDLE Process,
    GROUP_AFFINITY* CpuSetMasks,   // optional
    WORD CpuSetMaskCount,
    WORD* RequiredMaskCount
);

<DllImport("KERNEL32.dll", ExactSpelling:=True)>
Public Shared Function GetProcessDefaultCpuSetMasks(
    Process As IntPtr,   ' HANDLE
    CpuSetMasks As IntPtr,   ' GROUP_AFFINITY* optional, out
    CpuSetMaskCount As UShort,   ' WORD
    <Out> ByRef RequiredMaskCount As UShort   ' WORD* out
) As Boolean
End Function

' Process : HANDLE
' CpuSetMasks : GROUP_AFFINITY* optional, out
' CpuSetMaskCount : WORD
' RequiredMaskCount : WORD* out
Declare PtrSafe Function GetProcessDefaultCpuSetMasks Lib "kernel32" ( _
    ByVal Process As LongPtr, _
    ByVal CpuSetMasks As LongPtr, _
    ByVal CpuSetMaskCount As Integer, _
    ByRef RequiredMaskCount As Integer) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

GetProcessDefaultCpuSetMasks = ctypes.windll.kernel32.GetProcessDefaultCpuSetMasks
GetProcessDefaultCpuSetMasks.restype = wintypes.BOOL
GetProcessDefaultCpuSetMasks.argtypes = [
    wintypes.HANDLE,  # Process : HANDLE
    ctypes.c_void_p,  # CpuSetMasks : GROUP_AFFINITY* optional, out
    ctypes.c_ushort,  # CpuSetMaskCount : WORD
    ctypes.POINTER(ctypes.c_ushort),  # RequiredMaskCount : WORD* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
GetProcessDefaultCpuSetMasks = Fiddle::Function.new(
  lib['GetProcessDefaultCpuSetMasks'],
  [
    Fiddle::TYPE_VOIDP,  # Process : HANDLE
    Fiddle::TYPE_VOIDP,  # CpuSetMasks : GROUP_AFFINITY* optional, out
    -Fiddle::TYPE_SHORT,  # CpuSetMaskCount : WORD
    Fiddle::TYPE_VOIDP,  # RequiredMaskCount : WORD* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "kernel32")]
extern "system" {
    fn GetProcessDefaultCpuSetMasks(
        Process: *mut core::ffi::c_void,  // HANDLE
        CpuSetMasks: *mut GROUP_AFFINITY,  // GROUP_AFFINITY* optional, out
        CpuSetMaskCount: u16,  // WORD
        RequiredMaskCount: *mut u16  // WORD* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("KERNEL32.dll")]
public static extern bool GetProcessDefaultCpuSetMasks(IntPtr Process, IntPtr CpuSetMasks, ushort CpuSetMaskCount, out ushort RequiredMaskCount);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_GetProcessDefaultCpuSetMasks' -Namespace Win32 -PassThru
# $api::GetProcessDefaultCpuSetMasks(Process, CpuSetMasks, CpuSetMaskCount, RequiredMaskCount)

#uselib "KERNEL32.dll"
#func global GetProcessDefaultCpuSetMasks "GetProcessDefaultCpuSetMasks" sptr, sptr, sptr, sptr
; GetProcessDefaultCpuSetMasks Process, varptr(CpuSetMasks), CpuSetMaskCount, varptr(RequiredMaskCount)   ; 戻り値は stat
; Process : HANDLE -> "sptr"
; CpuSetMasks : GROUP_AFFINITY* optional, out -> "sptr"
; CpuSetMaskCount : WORD -> "sptr"
; RequiredMaskCount : WORD* 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 "KERNEL32.dll"
#cfunc global GetProcessDefaultCpuSetMasks "GetProcessDefaultCpuSetMasks" sptr, var, int, var
; res = GetProcessDefaultCpuSetMasks(Process, CpuSetMasks, CpuSetMaskCount, RequiredMaskCount)
; Process : HANDLE -> "sptr"
; CpuSetMasks : GROUP_AFFINITY* optional, out -> "var"
; CpuSetMaskCount : WORD -> "int"
; RequiredMaskCount : WORD* out -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

; BOOL GetProcessDefaultCpuSetMasks(HANDLE Process, GROUP_AFFINITY* CpuSetMasks, WORD CpuSetMaskCount, WORD* RequiredMaskCount)
#uselib "KERNEL32.dll"
#cfunc global GetProcessDefaultCpuSetMasks "GetProcessDefaultCpuSetMasks" intptr, var, int, var
; res = GetProcessDefaultCpuSetMasks(Process, CpuSetMasks, CpuSetMaskCount, RequiredMaskCount)
; Process : HANDLE -> "intptr"
; CpuSetMasks : GROUP_AFFINITY* optional, out -> "var"
; CpuSetMaskCount : WORD -> "int"
; RequiredMaskCount : WORD* out -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

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

var (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	procGetProcessDefaultCpuSetMasks = kernel32.NewProc("GetProcessDefaultCpuSetMasks")
)

// Process (HANDLE), CpuSetMasks (GROUP_AFFINITY* optional, out), CpuSetMaskCount (WORD), RequiredMaskCount (WORD* out)
r1, _, err := procGetProcessDefaultCpuSetMasks.Call(
	uintptr(Process),
	uintptr(CpuSetMasks),
	uintptr(CpuSetMaskCount),
	uintptr(RequiredMaskCount),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function GetProcessDefaultCpuSetMasks(
  Process: THandle;   // HANDLE
  CpuSetMasks: Pointer;   // GROUP_AFFINITY* optional, out
  CpuSetMaskCount: Word;   // WORD
  RequiredMaskCount: Pointer   // WORD* out
): BOOL; stdcall;
  external 'KERNEL32.dll' name 'GetProcessDefaultCpuSetMasks';

result := DllCall("KERNEL32\GetProcessDefaultCpuSetMasks"
    , "Ptr", Process   ; HANDLE
    , "Ptr", CpuSetMasks   ; GROUP_AFFINITY* optional, out
    , "UShort", CpuSetMaskCount   ; WORD
    , "Ptr", RequiredMaskCount   ; WORD* out
    , "Int")   ; return: BOOL

●GetProcessDefaultCpuSetMasks(Process, CpuSetMasks, CpuSetMaskCount, RequiredMaskCount) = DLL("KERNEL32.dll", "bool GetProcessDefaultCpuSetMasks(void*, void*, int, void*)")
# 呼び出し: GetProcessDefaultCpuSetMasks(Process, CpuSetMasks, CpuSetMaskCount, RequiredMaskCount)
# Process : HANDLE -> "void*"
# CpuSetMasks : GROUP_AFFINITY* optional, out -> "void*"
# CpuSetMaskCount : WORD -> "int"
# RequiredMaskCount : WORD* 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)。