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CDROM_TOC_CD_TEXT_DATA

構造体
サイズx64: 22 バイト / x86: 22 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
LengthBYTE2+0+0CD-TEXTデータの長さをビッグエンディアン2バイトで示す。
Reserved1BYTE1+2+2予約フィールド。0を設定する。
Reserved2BYTE1+3+3予約フィールド。0を設定する。
DescriptorsCDROM_TOC_CD_TEXT_DATA_BLOCK18+4+4CD-TEXTの各パックを保持するCDROM_TOC_CD_TEXT_DATA_BLOCK配列。

各言語での定義

#include <windows.h>

// CDROM_TOC_CD_TEXT_DATA_BLOCK  (x64 18 / x86 18 バイト)
typedef struct CDROM_TOC_CD_TEXT_DATA_BLOCK {
    BYTE PackType;
    BYTE _bitfield1;
    BYTE SequenceNumber;
    BYTE _bitfield2;
    _Anonymous_e__Union Anonymous;
    BYTE CRC[2];
} CDROM_TOC_CD_TEXT_DATA_BLOCK;

// CDROM_TOC_CD_TEXT_DATA  (x64 22 / x86 22 バイト)
typedef struct CDROM_TOC_CD_TEXT_DATA {
    BYTE Length[2];
    BYTE Reserved1;
    BYTE Reserved2;
    CDROM_TOC_CD_TEXT_DATA_BLOCK Descriptors[1];
} CDROM_TOC_CD_TEXT_DATA;
using System;
using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct CDROM_TOC_CD_TEXT_DATA_BLOCK
{
    public byte PackType;
    public byte _bitfield1;
    public byte SequenceNumber;
    public byte _bitfield2;
    public _Anonymous_e__Union Anonymous;
    [MarshalAs(UnmanagedType.ByValArray, SizeConst = 2)] public byte[] CRC;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct CDROM_TOC_CD_TEXT_DATA
{
    [MarshalAs(UnmanagedType.ByValArray, SizeConst = 2)] public byte[] Length;
    public byte Reserved1;
    public byte Reserved2;
    [MarshalAs(UnmanagedType.ByValArray, SizeConst = 1)] public CDROM_TOC_CD_TEXT_DATA_BLOCK[] Descriptors;
}
Imports System.Runtime.InteropServices

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure CDROM_TOC_CD_TEXT_DATA_BLOCK
    Public PackType As Byte
    Public _bitfield1 As Byte
    Public SequenceNumber As Byte
    Public _bitfield2 As Byte
    Public Anonymous As _Anonymous_e__Union
    <MarshalAs(UnmanagedType.ByValArray, SizeConst:=2)> Public CRC() As Byte
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure CDROM_TOC_CD_TEXT_DATA
    <MarshalAs(UnmanagedType.ByValArray, SizeConst:=2)> Public Length() As Byte
    Public Reserved1 As Byte
    Public Reserved2 As Byte
    <MarshalAs(UnmanagedType.ByValArray, SizeConst:=1)> Public Descriptors() As CDROM_TOC_CD_TEXT_DATA_BLOCK
End Structure
import ctypes
from ctypes import wintypes

class CDROM_TOC_CD_TEXT_DATA_BLOCK(ctypes.Structure):
    _fields_ = [
        ("PackType", ctypes.c_ubyte),
        ("_bitfield1", ctypes.c_ubyte),
        ("SequenceNumber", ctypes.c_ubyte),
        ("_bitfield2", ctypes.c_ubyte),
        ("Anonymous", _Anonymous_e__Union),
        ("CRC", ctypes.c_ubyte * 2),
    ]

class CDROM_TOC_CD_TEXT_DATA(ctypes.Structure):
    _fields_ = [
        ("Length", ctypes.c_ubyte * 2),
        ("Reserved1", ctypes.c_ubyte),
        ("Reserved2", ctypes.c_ubyte),
        ("Descriptors", CDROM_TOC_CD_TEXT_DATA_BLOCK * 1),
    ]
#[repr(C)]
pub struct CDROM_TOC_CD_TEXT_DATA_BLOCK {
    pub PackType: u8,
    pub _bitfield1: u8,
    pub SequenceNumber: u8,
    pub _bitfield2: u8,
    pub Anonymous: _Anonymous_e__Union,
    pub CRC: [u8; 2],
}

#[repr(C)]
pub struct CDROM_TOC_CD_TEXT_DATA {
    pub Length: [u8; 2],
    pub Reserved1: u8,
    pub Reserved2: u8,
    pub Descriptors: [CDROM_TOC_CD_TEXT_DATA_BLOCK; 1],
}
import "golang.org/x/sys/windows"

type CDROM_TOC_CD_TEXT_DATA_BLOCK struct {
	PackType byte
	_bitfield1 byte
	SequenceNumber byte
	_bitfield2 byte
	Anonymous _Anonymous_e__Union
	CRC [2]byte
}

type CDROM_TOC_CD_TEXT_DATA struct {
	Length [2]byte
	Reserved1 byte
	Reserved2 byte
	Descriptors [1]CDROM_TOC_CD_TEXT_DATA_BLOCK
}
type
  CDROM_TOC_CD_TEXT_DATA_BLOCK = record
    PackType: Byte;
    _bitfield1: Byte;
    SequenceNumber: Byte;
    _bitfield2: Byte;
    Anonymous: _Anonymous_e__Union;
    CRC: array[0..1] of Byte;
  end;

  CDROM_TOC_CD_TEXT_DATA = record
    Length: array[0..1] of Byte;
    Reserved1: Byte;
    Reserved2: Byte;
    Descriptors: array[0..0] of CDROM_TOC_CD_TEXT_DATA_BLOCK;
  end;
const CDROM_TOC_CD_TEXT_DATA_BLOCK = extern struct {
    PackType: u8,
    _bitfield1: u8,
    SequenceNumber: u8,
    _bitfield2: u8,
    Anonymous: _Anonymous_e__Union,
    CRC: [2]u8,
};

const CDROM_TOC_CD_TEXT_DATA = extern struct {
    Length: [2]u8,
    Reserved1: u8,
    Reserved2: u8,
    Descriptors: [1]CDROM_TOC_CD_TEXT_DATA_BLOCK,
};
type
  CDROM_TOC_CD_TEXT_DATA_BLOCK {.bycopy.} = object
    PackType: uint8
    _bitfield1: uint8
    SequenceNumber: uint8
    _bitfield2: uint8
    Anonymous: _Anonymous_e__Union
    CRC: array[2, uint8]

  CDROM_TOC_CD_TEXT_DATA {.bycopy.} = object
    Length: array[2, uint8]
    Reserved1: uint8
    Reserved2: uint8
    Descriptors: array[1, CDROM_TOC_CD_TEXT_DATA_BLOCK]
struct CDROM_TOC_CD_TEXT_DATA_BLOCK
{
    ubyte PackType;
    ubyte _bitfield1;
    ubyte SequenceNumber;
    ubyte _bitfield2;
    _Anonymous_e__Union Anonymous;
    ubyte[2] CRC;
}

struct CDROM_TOC_CD_TEXT_DATA
{
    ubyte[2] Length;
    ubyte Reserved1;
    ubyte Reserved2;
    CDROM_TOC_CD_TEXT_DATA_BLOCK[1] Descriptors;
}

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)
; CDROM_TOC_CD_TEXT_DATA サイズ: 22 バイト(x64)
dim st, 6    ; 4byte整数×6(構造体サイズ 22 / 4 切り上げ)
; Length : BYTE (+0, 2byte)  varptr(st)+0 を基点に操作(2byte:入れ子/配列)
; Reserved1 : BYTE (+2, 1byte)  poke st,2,値  /  値 = peek(st,2)
; Reserved2 : BYTE (+3, 1byte)  poke st,3,値  /  値 = peek(st,3)
; Descriptors : CDROM_TOC_CD_TEXT_DATA_BLOCK (+4, 18byte)  varptr(st)+4 を基点に操作(18byte:入れ子/配列)
; ※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 CDROM_TOC_CD_TEXT_DATA_BLOCK
    #field byte PackType
    #field byte _bitfield1
    #field byte SequenceNumber
    #field byte _bitfield2
    #field byte Anonymous 12
    #field byte CRC 2
#endstruct

#defstruct global CDROM_TOC_CD_TEXT_DATA
    #field byte Length 2
    #field byte Reserved1
    #field byte Reserved2
    #field CDROM_TOC_CD_TEXT_DATA_BLOCK Descriptors 1
#endstruct

stdim st, CDROM_TOC_CD_TEXT_DATA        ; NSTRUCT 変数を確保
st->Reserved1 = 100
mes "Reserved1=" + st->Reserved1