CreateThread

関数

呼び出しプロセス内に新しいスレッドを作成する。

DLLKERNEL32.dll呼出規約winapiSetLastErrorあり対応OSWindows XP 以降

シグネチャ

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

HANDLE CreateThread(
    SECURITY_ATTRIBUTES* lpThreadAttributes,   // optional
    UINT_PTR dwStackSize,
    LPTHREAD_START_ROUTINE lpStartAddress,
    void* lpParameter,   // optional
    THREAD_CREATION_FLAGS dwCreationFlags,
    DWORD* lpThreadId   // optional
);

パラメーター

名前	型	方向
lpThreadAttributes	SECURITY_ATTRIBUTES*	inoptional
dwStackSize	UINT_PTR	in
lpStartAddress	LPTHREAD_START_ROUTINE	in
lpParameter	void*	inoptional
dwCreationFlags	THREAD_CREATION_FLAGS	in
lpThreadId	DWORD*	outoptional

戻り値の型: HANDLE

各言語での呼び出し定義

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

HANDLE CreateThread(
    SECURITY_ATTRIBUTES* lpThreadAttributes,   // optional
    UINT_PTR dwStackSize,
    LPTHREAD_START_ROUTINE lpStartAddress,
    void* lpParameter,   // optional
    THREAD_CREATION_FLAGS dwCreationFlags,
    DWORD* lpThreadId   // optional
);

[DllImport("KERNEL32.dll", SetLastError = true, ExactSpelling = true)]
static extern IntPtr CreateThread(
    IntPtr lpThreadAttributes,   // SECURITY_ATTRIBUTES* optional
    UIntPtr dwStackSize,   // UINT_PTR
    IntPtr lpStartAddress,   // LPTHREAD_START_ROUTINE
    IntPtr lpParameter,   // void* optional
    uint dwCreationFlags,   // THREAD_CREATION_FLAGS
    IntPtr lpThreadId   // DWORD* optional, out
);

<DllImport("KERNEL32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function CreateThread(
    lpThreadAttributes As IntPtr,   ' SECURITY_ATTRIBUTES* optional
    dwStackSize As UIntPtr,   ' UINT_PTR
    lpStartAddress As IntPtr,   ' LPTHREAD_START_ROUTINE
    lpParameter As IntPtr,   ' void* optional
    dwCreationFlags As UInteger,   ' THREAD_CREATION_FLAGS
    lpThreadId As IntPtr   ' DWORD* optional, out
) As IntPtr
End Function

' lpThreadAttributes : SECURITY_ATTRIBUTES* optional
' dwStackSize : UINT_PTR
' lpStartAddress : LPTHREAD_START_ROUTINE
' lpParameter : void* optional
' dwCreationFlags : THREAD_CREATION_FLAGS
' lpThreadId : DWORD* optional, out
Declare PtrSafe Function CreateThread Lib "kernel32" ( _
    ByVal lpThreadAttributes As LongPtr, _
    ByVal dwStackSize As LongPtr, _
    ByVal lpStartAddress As LongPtr, _
    ByVal lpParameter As LongPtr, _
    ByVal dwCreationFlags As Long, _
    ByVal lpThreadId As LongPtr) As LongPtr
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

CreateThread = ctypes.windll.kernel32.CreateThread
CreateThread.restype = ctypes.c_void_p
CreateThread.argtypes = [
    ctypes.c_void_p,  # lpThreadAttributes : SECURITY_ATTRIBUTES* optional
    ctypes.c_size_t,  # dwStackSize : UINT_PTR
    ctypes.c_void_p,  # lpStartAddress : LPTHREAD_START_ROUTINE
    ctypes.POINTER(None),  # lpParameter : void* optional
    wintypes.DWORD,  # dwCreationFlags : THREAD_CREATION_FLAGS
    ctypes.POINTER(wintypes.DWORD),  # lpThreadId : DWORD* optional, out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
CreateThread = Fiddle::Function.new(
  lib['CreateThread'],
  [
    Fiddle::TYPE_VOIDP,  # lpThreadAttributes : SECURITY_ATTRIBUTES* optional
    Fiddle::TYPE_UINTPTR_T,  # dwStackSize : UINT_PTR
    Fiddle::TYPE_VOIDP,  # lpStartAddress : LPTHREAD_START_ROUTINE
    Fiddle::TYPE_VOIDP,  # lpParameter : void* optional
    -Fiddle::TYPE_INT,  # dwCreationFlags : THREAD_CREATION_FLAGS
    Fiddle::TYPE_VOIDP,  # lpThreadId : DWORD* optional, out
  ],
  Fiddle::TYPE_VOIDP)

#[link(name = "kernel32")]
extern "system" {
    fn CreateThread(
        lpThreadAttributes: *mut SECURITY_ATTRIBUTES,  // SECURITY_ATTRIBUTES* optional
        dwStackSize: usize,  // UINT_PTR
        lpStartAddress: *const core::ffi::c_void,  // LPTHREAD_START_ROUTINE
        lpParameter: *mut (),  // void* optional
        dwCreationFlags: u32,  // THREAD_CREATION_FLAGS
        lpThreadId: *mut u32  // DWORD* optional, out
    ) -> *mut core::ffi::c_void;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("KERNEL32.dll", SetLastError = true)]
public static extern IntPtr CreateThread(IntPtr lpThreadAttributes, UIntPtr dwStackSize, IntPtr lpStartAddress, IntPtr lpParameter, uint dwCreationFlags, IntPtr lpThreadId);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_CreateThread' -Namespace Win32 -PassThru
# $api::CreateThread(lpThreadAttributes, dwStackSize, lpStartAddress, lpParameter, dwCreationFlags, lpThreadId)

#uselib "KERNEL32.dll"
#func global CreateThread "CreateThread" sptr, sptr, sptr, sptr, sptr, sptr
; CreateThread varptr(lpThreadAttributes), dwStackSize, lpStartAddress, lpParameter, dwCreationFlags, varptr(lpThreadId)   ; 戻り値は stat
; lpThreadAttributes : SECURITY_ATTRIBUTES* optional -> "sptr"
; dwStackSize : UINT_PTR -> "sptr"
; lpStartAddress : LPTHREAD_START_ROUTINE -> "sptr"
; lpParameter : void* optional -> "sptr"
; dwCreationFlags : THREAD_CREATION_FLAGS -> "sptr"
; lpThreadId : DWORD* optional, 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。

出力引数:

#uselib "KERNEL32.dll"
#cfunc global CreateThread "CreateThread" var, sptr, sptr, sptr, int, var
; res = CreateThread(lpThreadAttributes, dwStackSize, lpStartAddress, lpParameter, dwCreationFlags, lpThreadId)
; lpThreadAttributes : SECURITY_ATTRIBUTES* optional -> "var"
; dwStackSize : UINT_PTR -> "sptr"
; lpStartAddress : LPTHREAD_START_ROUTINE -> "sptr"
; lpParameter : void* optional -> "sptr"
; dwCreationFlags : THREAD_CREATION_FLAGS -> "int"
; lpThreadId : DWORD* optional, 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。#uselib "KERNEL32.dll"
#cfunc global CreateThread "CreateThread" sptr, sptr, sptr, sptr, int, sptr
; res = CreateThread(varptr(lpThreadAttributes), dwStackSize, lpStartAddress, lpParameter, dwCreationFlags, varptr(lpThreadId))
; lpThreadAttributes : SECURITY_ATTRIBUTES* optional -> "sptr"
; dwStackSize : UINT_PTR -> "sptr"
; lpStartAddress : LPTHREAD_START_ROUTINE -> "sptr"
; lpParameter : void* optional -> "sptr"
; dwCreationFlags : THREAD_CREATION_FLAGS -> "int"
; lpThreadId : DWORD* optional, out -> "sptr"
; ※出力/バッファ引数はポインタ方式(token=sptr / 呼び出しは varptr(変数))。

出力引数:

; HANDLE CreateThread(SECURITY_ATTRIBUTES* lpThreadAttributes, UINT_PTR dwStackSize, LPTHREAD_START_ROUTINE lpStartAddress, void* lpParameter, THREAD_CREATION_FLAGS dwCreationFlags, DWORD* lpThreadId)
#uselib "KERNEL32.dll"
#cfunc global CreateThread "CreateThread" var, intptr, intptr, intptr, int, var
; res = CreateThread(lpThreadAttributes, dwStackSize, lpStartAddress, lpParameter, dwCreationFlags, lpThreadId)
; lpThreadAttributes : SECURITY_ATTRIBUTES* optional -> "var"
; dwStackSize : UINT_PTR -> "intptr"
; lpStartAddress : LPTHREAD_START_ROUTINE -> "intptr"
; lpParameter : void* optional -> "intptr"
; dwCreationFlags : THREAD_CREATION_FLAGS -> "int"
; lpThreadId : DWORD* optional, 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。; HANDLE CreateThread(SECURITY_ATTRIBUTES* lpThreadAttributes, UINT_PTR dwStackSize, LPTHREAD_START_ROUTINE lpStartAddress, void* lpParameter, THREAD_CREATION_FLAGS dwCreationFlags, DWORD* lpThreadId)
#uselib "KERNEL32.dll"
#cfunc global CreateThread "CreateThread" intptr, intptr, intptr, intptr, int, intptr
; res = CreateThread(varptr(lpThreadAttributes), dwStackSize, lpStartAddress, lpParameter, dwCreationFlags, varptr(lpThreadId))
; lpThreadAttributes : SECURITY_ATTRIBUTES* optional -> "intptr"
; dwStackSize : UINT_PTR -> "intptr"
; lpStartAddress : LPTHREAD_START_ROUTINE -> "intptr"
; lpParameter : void* optional -> "intptr"
; dwCreationFlags : THREAD_CREATION_FLAGS -> "int"
; lpThreadId : DWORD* optional, out -> "intptr"
; ※出力/バッファ引数はポインタ方式(token=intptr / 呼び出しは varptr(変数))。

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

var (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	procCreateThread = kernel32.NewProc("CreateThread")
)

// lpThreadAttributes (SECURITY_ATTRIBUTES* optional), dwStackSize (UINT_PTR), lpStartAddress (LPTHREAD_START_ROUTINE), lpParameter (void* optional), dwCreationFlags (THREAD_CREATION_FLAGS), lpThreadId (DWORD* optional, out)
r1, _, err := procCreateThread.Call(
	uintptr(lpThreadAttributes),
	uintptr(dwStackSize),
	uintptr(lpStartAddress),
	uintptr(lpParameter),
	uintptr(dwCreationFlags),
	uintptr(lpThreadId),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HANDLE

function CreateThread(
  lpThreadAttributes: Pointer;   // SECURITY_ATTRIBUTES* optional
  dwStackSize: NativeUInt;   // UINT_PTR
  lpStartAddress: Pointer;   // LPTHREAD_START_ROUTINE
  lpParameter: Pointer;   // void* optional
  dwCreationFlags: DWORD;   // THREAD_CREATION_FLAGS
  lpThreadId: Pointer   // DWORD* optional, out
): THandle; stdcall;
  external 'KERNEL32.dll' name 'CreateThread';

result := DllCall("KERNEL32\CreateThread"
    , "Ptr", lpThreadAttributes   ; SECURITY_ATTRIBUTES* optional
    , "UPtr", dwStackSize   ; UINT_PTR
    , "Ptr", lpStartAddress   ; LPTHREAD_START_ROUTINE
    , "Ptr", lpParameter   ; void* optional
    , "UInt", dwCreationFlags   ; THREAD_CREATION_FLAGS
    , "Ptr", lpThreadId   ; DWORD* optional, out
    , "Ptr")   ; return: HANDLE

●CreateThread(lpThreadAttributes, dwStackSize, lpStartAddress, lpParameter, dwCreationFlags, lpThreadId) = DLL("KERNEL32.dll", "void* CreateThread(void*, int, void*, void*, dword, void*)")
# 呼び出し: CreateThread(lpThreadAttributes, dwStackSize, lpStartAddress, lpParameter, dwCreationFlags, lpThreadId)
# lpThreadAttributes : SECURITY_ATTRIBUTES* optional -> "void*"
# dwStackSize : UINT_PTR -> "int"
# lpStartAddress : LPTHREAD_START_ROUTINE -> "void*"
# lpParameter : void* optional -> "void*"
# dwCreationFlags : THREAD_CREATION_FLAGS -> "dword"
# lpThreadId : DWORD* optional, 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)。