IsWow64Process

関数

指定プロセスがWOW64上で動作しているか判定する。

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

シグネチャ

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

BOOL IsWow64Process(
    HANDLE hProcess,
    BOOL* Wow64Process
);

パラメーター

名前	型	方向
hProcess	HANDLE	in
Wow64Process	BOOL*	out

戻り値の型: BOOL

各言語での呼び出し定義

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

BOOL IsWow64Process(
    HANDLE hProcess,
    BOOL* Wow64Process
);

[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("KERNEL32.dll", SetLastError = true, ExactSpelling = true)]
static extern bool IsWow64Process(
    IntPtr hProcess,   // HANDLE
    out int Wow64Process   // BOOL* out
);

<DllImport("KERNEL32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function IsWow64Process(
    hProcess As IntPtr,   ' HANDLE
    <Out> ByRef Wow64Process As Integer   ' BOOL* out
) As Boolean
End Function

' hProcess : HANDLE
' Wow64Process : BOOL* out
Declare PtrSafe Function IsWow64Process Lib "kernel32" ( _
    ByVal hProcess As LongPtr, _
    ByRef Wow64Process 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

IsWow64Process = ctypes.windll.kernel32.IsWow64Process
IsWow64Process.restype = wintypes.BOOL
IsWow64Process.argtypes = [
    wintypes.HANDLE,  # hProcess : HANDLE
    ctypes.c_void_p,  # Wow64Process : BOOL* out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
IsWow64Process = Fiddle::Function.new(
  lib['IsWow64Process'],
  [
    Fiddle::TYPE_VOIDP,  # hProcess : HANDLE
    Fiddle::TYPE_VOIDP,  # Wow64Process : BOOL* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "kernel32")]
extern "system" {
    fn IsWow64Process(
        hProcess: *mut core::ffi::c_void,  // HANDLE
        Wow64Process: *mut i32  // BOOL* out
    ) -> 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 IsWow64Process(IntPtr hProcess, out int Wow64Process);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_IsWow64Process' -Namespace Win32 -PassThru
# $api::IsWow64Process(hProcess, Wow64Process)

#uselib "KERNEL32.dll"
#func global IsWow64Process "IsWow64Process" sptr, sptr
; IsWow64Process hProcess, Wow64Process   ; 戻り値は stat
; hProcess : HANDLE -> "sptr"
; Wow64Process : BOOL* 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 IsWow64Process "IsWow64Process" sptr, int
; res = IsWow64Process(hProcess, Wow64Process)
; hProcess : HANDLE -> "sptr"
; Wow64Process : BOOL* out -> "int"

; BOOL IsWow64Process(HANDLE hProcess, BOOL* Wow64Process)
#uselib "KERNEL32.dll"
#cfunc global IsWow64Process "IsWow64Process" intptr, int
; res = IsWow64Process(hProcess, Wow64Process)
; hProcess : HANDLE -> "intptr"
; Wow64Process : BOOL* out -> "int"

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

var (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	procIsWow64Process = kernel32.NewProc("IsWow64Process")
)

// hProcess (HANDLE), Wow64Process (BOOL* out)
r1, _, err := procIsWow64Process.Call(
	uintptr(hProcess),
	uintptr(Wow64Process),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function IsWow64Process(
  hProcess: THandle;   // HANDLE
  Wow64Process: Pointer   // BOOL* out
): BOOL; stdcall;
  external 'KERNEL32.dll' name 'IsWow64Process';

result := DllCall("KERNEL32\IsWow64Process"
    , "Ptr", hProcess   ; HANDLE
    , "Ptr", Wow64Process   ; BOOL* out
    , "Int")   ; return: BOOL

●IsWow64Process(hProcess, Wow64Process) = DLL("KERNEL32.dll", "bool IsWow64Process(void*, void*)")
# 呼び出し: IsWow64Process(hProcess, Wow64Process)
# hProcess : HANDLE -> "void*"
# Wow64Process : BOOL* 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)。