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BY_HANDLE_FILE_INFORMATION

構造体
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サイズx64: 52 バイト / x86: 52 バイト

サイズ=各フィールドのバイト数(x64/x86 で異なる場合は x64/x86 と併記)。x64/x86 列=フィールドのバイトオフセット(HSPで dupptr / lpoke / wpoke 等に使用)。

フィールド

フィールド型サイズx64x86説明
dwFileAttributesDWORD4+0+0ファイル属性を示すフラグ。FILE_ATTRIBUTE_*の組み合わせ。
ftCreationTimeFILETIME8+4+4ファイル作成日時。FILETIME(UTC)。
ftLastAccessTimeFILETIME8+12+12最終アクセス日時。FILETIME(UTC)。
ftLastWriteTimeFILETIME8+20+20最終書き込み日時。FILETIME(UTC)。
dwVolumeSerialNumberDWORD4+28+28ファイルが存在するボリュームのシリアル番号。
nFileSizeHighDWORD4+32+32ファイルサイズの上位32ビット。
nFileSizeLowDWORD4+36+36ファイルサイズの下位32ビット。
nNumberOfLinksDWORD4+40+40ファイルへのハードリンク数。
nFileIndexHighDWORD4+44+44ファイル識別子の上位32ビット。
nFileIndexLowDWORD4+48+48ファイル識別子の下位32ビット。

各言語での定義

#include <windows.h>

// FILETIME  (x64 8 / x86 8 バイト)
typedef struct FILETIME {
    DWORD dwLowDateTime;
    DWORD dwHighDateTime;
} FILETIME;

// BY_HANDLE_FILE_INFORMATION  (x64 52 / x86 52 バイト)
typedef struct BY_HANDLE_FILE_INFORMATION {
    DWORD dwFileAttributes;
    FILETIME ftCreationTime;
    FILETIME ftLastAccessTime;
    FILETIME ftLastWriteTime;
    DWORD dwVolumeSerialNumber;
    DWORD nFileSizeHigh;
    DWORD nFileSizeLow;
    DWORD nNumberOfLinks;
    DWORD nFileIndexHigh;
    DWORD nFileIndexLow;
} BY_HANDLE_FILE_INFORMATION;
using System;
using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct FILETIME
{
    public uint dwLowDateTime;
    public uint dwHighDateTime;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct BY_HANDLE_FILE_INFORMATION
{
    public uint dwFileAttributes;
    public FILETIME ftCreationTime;
    public FILETIME ftLastAccessTime;
    public FILETIME ftLastWriteTime;
    public uint dwVolumeSerialNumber;
    public uint nFileSizeHigh;
    public uint nFileSizeLow;
    public uint nNumberOfLinks;
    public uint nFileIndexHigh;
    public uint nFileIndexLow;
}
Imports System.Runtime.InteropServices

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure FILETIME
    Public dwLowDateTime As UInteger
    Public dwHighDateTime As UInteger
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure BY_HANDLE_FILE_INFORMATION
    Public dwFileAttributes As UInteger
    Public ftCreationTime As FILETIME
    Public ftLastAccessTime As FILETIME
    Public ftLastWriteTime As FILETIME
    Public dwVolumeSerialNumber As UInteger
    Public nFileSizeHigh As UInteger
    Public nFileSizeLow As UInteger
    Public nNumberOfLinks As UInteger
    Public nFileIndexHigh As UInteger
    Public nFileIndexLow As UInteger
End Structure
import ctypes
from ctypes import wintypes

class FILETIME(ctypes.Structure):
    _fields_ = [
        ("dwLowDateTime", wintypes.DWORD),
        ("dwHighDateTime", wintypes.DWORD),
    ]

class BY_HANDLE_FILE_INFORMATION(ctypes.Structure):
    _fields_ = [
        ("dwFileAttributes", wintypes.DWORD),
        ("ftCreationTime", FILETIME),
        ("ftLastAccessTime", FILETIME),
        ("ftLastWriteTime", FILETIME),
        ("dwVolumeSerialNumber", wintypes.DWORD),
        ("nFileSizeHigh", wintypes.DWORD),
        ("nFileSizeLow", wintypes.DWORD),
        ("nNumberOfLinks", wintypes.DWORD),
        ("nFileIndexHigh", wintypes.DWORD),
        ("nFileIndexLow", wintypes.DWORD),
    ]
#[repr(C)]
pub struct FILETIME {
    pub dwLowDateTime: u32,
    pub dwHighDateTime: u32,
}

#[repr(C)]
pub struct BY_HANDLE_FILE_INFORMATION {
    pub dwFileAttributes: u32,
    pub ftCreationTime: FILETIME,
    pub ftLastAccessTime: FILETIME,
    pub ftLastWriteTime: FILETIME,
    pub dwVolumeSerialNumber: u32,
    pub nFileSizeHigh: u32,
    pub nFileSizeLow: u32,
    pub nNumberOfLinks: u32,
    pub nFileIndexHigh: u32,
    pub nFileIndexLow: u32,
}
import "golang.org/x/sys/windows"

type FILETIME struct {
	dwLowDateTime uint32
	dwHighDateTime uint32
}

type BY_HANDLE_FILE_INFORMATION struct {
	dwFileAttributes uint32
	ftCreationTime FILETIME
	ftLastAccessTime FILETIME
	ftLastWriteTime FILETIME
	dwVolumeSerialNumber uint32
	nFileSizeHigh uint32
	nFileSizeLow uint32
	nNumberOfLinks uint32
	nFileIndexHigh uint32
	nFileIndexLow uint32
}
type
  FILETIME = record
    dwLowDateTime: DWORD;
    dwHighDateTime: DWORD;
  end;

  BY_HANDLE_FILE_INFORMATION = record
    dwFileAttributes: DWORD;
    ftCreationTime: FILETIME;
    ftLastAccessTime: FILETIME;
    ftLastWriteTime: FILETIME;
    dwVolumeSerialNumber: DWORD;
    nFileSizeHigh: DWORD;
    nFileSizeLow: DWORD;
    nNumberOfLinks: DWORD;
    nFileIndexHigh: DWORD;
    nFileIndexLow: DWORD;
  end;
const FILETIME = extern struct {
    dwLowDateTime: u32,
    dwHighDateTime: u32,
};

const BY_HANDLE_FILE_INFORMATION = extern struct {
    dwFileAttributes: u32,
    ftCreationTime: FILETIME,
    ftLastAccessTime: FILETIME,
    ftLastWriteTime: FILETIME,
    dwVolumeSerialNumber: u32,
    nFileSizeHigh: u32,
    nFileSizeLow: u32,
    nNumberOfLinks: u32,
    nFileIndexHigh: u32,
    nFileIndexLow: u32,
};
type
  FILETIME {.bycopy.} = object
    dwLowDateTime: uint32
    dwHighDateTime: uint32

  BY_HANDLE_FILE_INFORMATION {.bycopy.} = object
    dwFileAttributes: uint32
    ftCreationTime: FILETIME
    ftLastAccessTime: FILETIME
    ftLastWriteTime: FILETIME
    dwVolumeSerialNumber: uint32
    nFileSizeHigh: uint32
    nFileSizeLow: uint32
    nNumberOfLinks: uint32
    nFileIndexHigh: uint32
    nFileIndexLow: uint32
struct FILETIME
{
    uint dwLowDateTime;
    uint dwHighDateTime;
}

struct BY_HANDLE_FILE_INFORMATION
{
    uint dwFileAttributes;
    FILETIME ftCreationTime;
    FILETIME ftLastAccessTime;
    FILETIME ftLastWriteTime;
    uint dwVolumeSerialNumber;
    uint nFileSizeHigh;
    uint nFileSizeLow;
    uint nNumberOfLinks;
    uint nFileIndexHigh;
    uint nFileIndexLow;
}

HSP用 定義

HSP3.7/3.8 は構造体機能が無いため4byte整数配列(dim)+peek/poke で操作(32/64bitでサイズ・位置が異なる場合はタブで分割)。IronHSP は NSTRUCT(#defstruct/stdim/->)で32/64bit共通。

; HSP3.7/3.8 は構造体機能が無いため、4byte整数の配列変数で操作します。(x64 レイアウト)
; BY_HANDLE_FILE_INFORMATION サイズ: 52 バイト(x64)
dim st, 13    ; 4byte整数×13(構造体サイズ 52 / 4 切り上げ)
; dwFileAttributes : DWORD (+0, 4byte)  st.0 = 値  /  値 = st.0   (lpoke/lpeek も可)
; ftCreationTime : FILETIME (+4, 8byte)  varptr(st)+4 を基点に操作(8byte:入れ子/配列)
; ftLastAccessTime : FILETIME (+12, 8byte)  varptr(st)+12 を基点に操作(8byte:入れ子/配列)
; ftLastWriteTime : FILETIME (+20, 8byte)  varptr(st)+20 を基点に操作(8byte:入れ子/配列)
; dwVolumeSerialNumber : DWORD (+28, 4byte)  st.7 = 値  /  値 = st.7   (lpoke/lpeek も可)
; nFileSizeHigh : DWORD (+32, 4byte)  st.8 = 値  /  値 = st.8   (lpoke/lpeek も可)
; nFileSizeLow : DWORD (+36, 4byte)  st.9 = 値  /  値 = st.9   (lpoke/lpeek も可)
; nNumberOfLinks : DWORD (+40, 4byte)  st.10 = 値  /  値 = st.10   (lpoke/lpeek も可)
; nFileIndexHigh : DWORD (+44, 4byte)  st.11 = 値  /  値 = st.11   (lpoke/lpeek も可)
; nFileIndexLow : DWORD (+48, 4byte)  st.12 = 値  /  値 = st.12   (lpoke/lpeek も可)
; ※4byte境界の整数は添字 st.N(N=オフセット/4)で読み書き可。それ以外は peek/poke 系を使用。
; IronHSP は NSTRUCT(構造体)をサポート。32bit/64bit どちらでも同じコードで動作します。
; ※GUID・入れ子構造体はデフォルト型でないため、依存する #defstruct を先に定義(下記に同梱)。
#defstruct global FILETIME
    #field int dwLowDateTime
    #field int dwHighDateTime
#endstruct

#defstruct global BY_HANDLE_FILE_INFORMATION
    #field int dwFileAttributes
    #field FILETIME ftCreationTime
    #field FILETIME ftLastAccessTime
    #field FILETIME ftLastWriteTime
    #field int dwVolumeSerialNumber
    #field int nFileSizeHigh
    #field int nFileSizeLow
    #field int nNumberOfLinks
    #field int nFileIndexHigh
    #field int nFileIndexLow
#endstruct

stdim st, BY_HANDLE_FILE_INFORMATION        ; NSTRUCT 変数を確保
st->dwFileAttributes = 100
mes "dwFileAttributes=" + st->dwFileAttributes