SetThreadSelectedCpuSets

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

BOOL SetThreadSelectedCpuSets(
    HANDLE Thread,
    const DWORD* CpuSetIds,
    DWORD CpuSetIdCount
);

<DllImport("KERNEL32.dll", ExactSpelling:=True)>
Public Shared Function SetThreadSelectedCpuSets(
    Thread As IntPtr,   ' HANDLE
    ByRef CpuSetIds As UInteger,   ' DWORD*
    CpuSetIdCount As UInteger   ' DWORD
) As Boolean
End Function

' Thread : HANDLE
' CpuSetIds : DWORD*
' CpuSetIdCount : DWORD
Declare PtrSafe Function SetThreadSelectedCpuSets Lib "kernel32" ( _
    ByVal Thread As LongPtr, _
    ByRef CpuSetIds As Long, _
    ByVal CpuSetIdCount As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

SetThreadSelectedCpuSets = ctypes.windll.kernel32.SetThreadSelectedCpuSets
SetThreadSelectedCpuSets.restype = wintypes.BOOL
SetThreadSelectedCpuSets.argtypes = [
    wintypes.HANDLE,  # Thread : HANDLE
    ctypes.POINTER(wintypes.DWORD),  # CpuSetIds : DWORD*
    wintypes.DWORD,  # CpuSetIdCount : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
SetThreadSelectedCpuSets = Fiddle::Function.new(
  lib['SetThreadSelectedCpuSets'],
  [
    Fiddle::TYPE_VOIDP,  # Thread : HANDLE
    Fiddle::TYPE_VOIDP,  # CpuSetIds : DWORD*
    -Fiddle::TYPE_INT,  # CpuSetIdCount : DWORD
  ],
  Fiddle::TYPE_INT)

#[link(name = "kernel32")]
extern "system" {
    fn SetThreadSelectedCpuSets(
        Thread: *mut core::ffi::c_void,  // HANDLE
        CpuSetIds: *const u32,  // DWORD*
        CpuSetIdCount: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("KERNEL32.dll")]
public static extern bool SetThreadSelectedCpuSets(IntPtr Thread, ref uint CpuSetIds, uint CpuSetIdCount);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_SetThreadSelectedCpuSets' -Namespace Win32 -PassThru
# $api::SetThreadSelectedCpuSets(Thread, CpuSetIds, CpuSetIdCount)

#uselib "KERNEL32.dll"
#func global SetThreadSelectedCpuSets "SetThreadSelectedCpuSets" sptr, sptr, sptr
; SetThreadSelectedCpuSets Thread, varptr(CpuSetIds), CpuSetIdCount   ; 戻り値は stat
; Thread : HANDLE -> "sptr"
; CpuSetIds : DWORD* -> "sptr"
; CpuSetIdCount : DWORD -> "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 SetThreadSelectedCpuSets "SetThreadSelectedCpuSets" sptr, var, int
; res = SetThreadSelectedCpuSets(Thread, CpuSetIds, CpuSetIdCount)
; Thread : HANDLE -> "sptr"
; CpuSetIds : DWORD* -> "var"
; CpuSetIdCount : DWORD -> "int"
; ※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 SetThreadSelectedCpuSets(HANDLE Thread, DWORD* CpuSetIds, DWORD CpuSetIdCount)
#uselib "KERNEL32.dll"
#cfunc global SetThreadSelectedCpuSets "SetThreadSelectedCpuSets" intptr, var, int
; res = SetThreadSelectedCpuSets(Thread, CpuSetIds, CpuSetIdCount)
; Thread : HANDLE -> "intptr"
; CpuSetIds : DWORD* -> "var"
; CpuSetIdCount : DWORD -> "int"
; ※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")
	procSetThreadSelectedCpuSets = kernel32.NewProc("SetThreadSelectedCpuSets")
)

// Thread (HANDLE), CpuSetIds (DWORD*), CpuSetIdCount (DWORD)
r1, _, err := procSetThreadSelectedCpuSets.Call(
	uintptr(Thread),
	uintptr(CpuSetIds),
	uintptr(CpuSetIdCount),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function SetThreadSelectedCpuSets(
  Thread: THandle;   // HANDLE
  CpuSetIds: Pointer;   // DWORD*
  CpuSetIdCount: DWORD   // DWORD
): BOOL; stdcall;
  external 'KERNEL32.dll' name 'SetThreadSelectedCpuSets';

result := DllCall("KERNEL32\SetThreadSelectedCpuSets"
    , "Ptr", Thread   ; HANDLE
    , "Ptr", CpuSetIds   ; DWORD*
    , "UInt", CpuSetIdCount   ; DWORD
    , "Int")   ; return: BOOL

●SetThreadSelectedCpuSets(Thread, CpuSetIds, CpuSetIdCount) = DLL("KERNEL32.dll", "bool SetThreadSelectedCpuSets(void*, void*, dword)")
# 呼び出し: SetThreadSelectedCpuSets(Thread, CpuSetIds, CpuSetIdCount)
# Thread : HANDLE -> "void*"
# CpuSetIds : DWORD* -> "void*"
# CpuSetIdCount : DWORD -> "dword"
# 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)。