SetThreadInformation

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

BOOL SetThreadInformation(
    HANDLE hThread,
    THREAD_INFORMATION_CLASS ThreadInformationClass,
    void* ThreadInformation,
    DWORD ThreadInformationSize
);

<DllImport("KERNEL32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function SetThreadInformation(
    hThread As IntPtr,   ' HANDLE
    ThreadInformationClass As Integer,   ' THREAD_INFORMATION_CLASS
    ThreadInformation As IntPtr,   ' void*
    ThreadInformationSize As UInteger   ' DWORD
) As Boolean
End Function

' hThread : HANDLE
' ThreadInformationClass : THREAD_INFORMATION_CLASS
' ThreadInformation : void*
' ThreadInformationSize : DWORD
Declare PtrSafe Function SetThreadInformation Lib "kernel32" ( _
    ByVal hThread As LongPtr, _
    ByVal ThreadInformationClass As Long, _
    ByVal ThreadInformation As LongPtr, _
    ByVal ThreadInformationSize 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

SetThreadInformation = ctypes.windll.kernel32.SetThreadInformation
SetThreadInformation.restype = wintypes.BOOL
SetThreadInformation.argtypes = [
    wintypes.HANDLE,  # hThread : HANDLE
    ctypes.c_int,  # ThreadInformationClass : THREAD_INFORMATION_CLASS
    ctypes.POINTER(None),  # ThreadInformation : void*
    wintypes.DWORD,  # ThreadInformationSize : DWORD
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
SetThreadInformation = Fiddle::Function.new(
  lib['SetThreadInformation'],
  [
    Fiddle::TYPE_VOIDP,  # hThread : HANDLE
    Fiddle::TYPE_INT,  # ThreadInformationClass : THREAD_INFORMATION_CLASS
    Fiddle::TYPE_VOIDP,  # ThreadInformation : void*
    -Fiddle::TYPE_INT,  # ThreadInformationSize : DWORD
  ],
  Fiddle::TYPE_INT)

#[link(name = "kernel32")]
extern "system" {
    fn SetThreadInformation(
        hThread: *mut core::ffi::c_void,  // HANDLE
        ThreadInformationClass: i32,  // THREAD_INFORMATION_CLASS
        ThreadInformation: *mut (),  // void*
        ThreadInformationSize: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("KERNEL32.dll", SetLastError = true)]
public static extern bool SetThreadInformation(IntPtr hThread, int ThreadInformationClass, IntPtr ThreadInformation, uint ThreadInformationSize);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_SetThreadInformation' -Namespace Win32 -PassThru
# $api::SetThreadInformation(hThread, ThreadInformationClass, ThreadInformation, ThreadInformationSize)

#uselib "KERNEL32.dll"
#func global SetThreadInformation "SetThreadInformation" sptr, sptr, sptr, sptr
; SetThreadInformation hThread, ThreadInformationClass, ThreadInformation, ThreadInformationSize   ; 戻り値は stat
; hThread : HANDLE -> "sptr"
; ThreadInformationClass : THREAD_INFORMATION_CLASS -> "sptr"
; ThreadInformation : void* -> "sptr"
; ThreadInformationSize : 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 SetThreadInformation "SetThreadInformation" sptr, int, sptr, int
; res = SetThreadInformation(hThread, ThreadInformationClass, ThreadInformation, ThreadInformationSize)
; hThread : HANDLE -> "sptr"
; ThreadInformationClass : THREAD_INFORMATION_CLASS -> "int"
; ThreadInformation : void* -> "sptr"
; ThreadInformationSize : DWORD -> "int"

; BOOL SetThreadInformation(HANDLE hThread, THREAD_INFORMATION_CLASS ThreadInformationClass, void* ThreadInformation, DWORD ThreadInformationSize)
#uselib "KERNEL32.dll"
#cfunc global SetThreadInformation "SetThreadInformation" intptr, int, intptr, int
; res = SetThreadInformation(hThread, ThreadInformationClass, ThreadInformation, ThreadInformationSize)
; hThread : HANDLE -> "intptr"
; ThreadInformationClass : THREAD_INFORMATION_CLASS -> "int"
; ThreadInformation : void* -> "intptr"
; ThreadInformationSize : DWORD -> "int"

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

var (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	procSetThreadInformation = kernel32.NewProc("SetThreadInformation")
)

// hThread (HANDLE), ThreadInformationClass (THREAD_INFORMATION_CLASS), ThreadInformation (void*), ThreadInformationSize (DWORD)
r1, _, err := procSetThreadInformation.Call(
	uintptr(hThread),
	uintptr(ThreadInformationClass),
	uintptr(ThreadInformation),
	uintptr(ThreadInformationSize),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function SetThreadInformation(
  hThread: THandle;   // HANDLE
  ThreadInformationClass: Integer;   // THREAD_INFORMATION_CLASS
  ThreadInformation: Pointer;   // void*
  ThreadInformationSize: DWORD   // DWORD
): BOOL; stdcall;
  external 'KERNEL32.dll' name 'SetThreadInformation';

result := DllCall("KERNEL32\SetThreadInformation"
    , "Ptr", hThread   ; HANDLE
    , "Int", ThreadInformationClass   ; THREAD_INFORMATION_CLASS
    , "Ptr", ThreadInformation   ; void*
    , "UInt", ThreadInformationSize   ; DWORD
    , "Int")   ; return: BOOL

●SetThreadInformation(hThread, ThreadInformationClass, ThreadInformation, ThreadInformationSize) = DLL("KERNEL32.dll", "bool SetThreadInformation(void*, int, void*, dword)")
# 呼び出し: SetThreadInformation(hThread, ThreadInformationClass, ThreadInformation, ThreadInformationSize)
# hThread : HANDLE -> "void*"
# ThreadInformationClass : THREAD_INFORMATION_CLASS -> "int"
# ThreadInformation : void* -> "void*"
# ThreadInformationSize : 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)。