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CDROM_TOC_SESSION_DATA

構造体
サイズx64: 12 バイト / x86: 12 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+0セッションデータの長さをビッグエンディアン2バイトで示す。
FirstCompleteSessionBYTE1+2+2最初の完結したセッション番号を示す。
LastCompleteSessionBYTE1+3+3最後の完結したセッション番号を示す。
TrackDataTRACK_DATA8+4+4セッション情報を保持するTRACK_DATA配列。

各言語での定義

#include <windows.h>

// TRACK_DATA  (x64 8 / x86 8 バイト)
typedef struct TRACK_DATA {
    BYTE Reserved;
    BYTE _bitfield;
    BYTE TrackNumber;
    BYTE Reserved1;
    BYTE Address[4];
} TRACK_DATA;

// CDROM_TOC_SESSION_DATA  (x64 12 / x86 12 バイト)
typedef struct CDROM_TOC_SESSION_DATA {
    BYTE Length[2];
    BYTE FirstCompleteSession;
    BYTE LastCompleteSession;
    TRACK_DATA TrackData[1];
} CDROM_TOC_SESSION_DATA;
using System;
using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct TRACK_DATA
{
    public byte Reserved;
    public byte _bitfield;
    public byte TrackNumber;
    public byte Reserved1;
    [MarshalAs(UnmanagedType.ByValArray, SizeConst = 4)] public byte[] Address;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct CDROM_TOC_SESSION_DATA
{
    [MarshalAs(UnmanagedType.ByValArray, SizeConst = 2)] public byte[] Length;
    public byte FirstCompleteSession;
    public byte LastCompleteSession;
    [MarshalAs(UnmanagedType.ByValArray, SizeConst = 1)] public TRACK_DATA[] TrackData;
}
Imports System.Runtime.InteropServices

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure TRACK_DATA
    Public Reserved As Byte
    Public _bitfield As Byte
    Public TrackNumber As Byte
    Public Reserved1 As Byte
    <MarshalAs(UnmanagedType.ByValArray, SizeConst:=4)> Public Address() As Byte
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure CDROM_TOC_SESSION_DATA
    <MarshalAs(UnmanagedType.ByValArray, SizeConst:=2)> Public Length() As Byte
    Public FirstCompleteSession As Byte
    Public LastCompleteSession As Byte
    <MarshalAs(UnmanagedType.ByValArray, SizeConst:=1)> Public TrackData() As TRACK_DATA
End Structure
import ctypes
from ctypes import wintypes

class TRACK_DATA(ctypes.Structure):
    _fields_ = [
        ("Reserved", ctypes.c_ubyte),
        ("_bitfield", ctypes.c_ubyte),
        ("TrackNumber", ctypes.c_ubyte),
        ("Reserved1", ctypes.c_ubyte),
        ("Address", ctypes.c_ubyte * 4),
    ]

class CDROM_TOC_SESSION_DATA(ctypes.Structure):
    _fields_ = [
        ("Length", ctypes.c_ubyte * 2),
        ("FirstCompleteSession", ctypes.c_ubyte),
        ("LastCompleteSession", ctypes.c_ubyte),
        ("TrackData", TRACK_DATA * 1),
    ]
#[repr(C)]
pub struct TRACK_DATA {
    pub Reserved: u8,
    pub _bitfield: u8,
    pub TrackNumber: u8,
    pub Reserved1: u8,
    pub Address: [u8; 4],
}

#[repr(C)]
pub struct CDROM_TOC_SESSION_DATA {
    pub Length: [u8; 2],
    pub FirstCompleteSession: u8,
    pub LastCompleteSession: u8,
    pub TrackData: [TRACK_DATA; 1],
}
import "golang.org/x/sys/windows"

type TRACK_DATA struct {
	Reserved byte
	_bitfield byte
	TrackNumber byte
	Reserved1 byte
	Address [4]byte
}

type CDROM_TOC_SESSION_DATA struct {
	Length [2]byte
	FirstCompleteSession byte
	LastCompleteSession byte
	TrackData [1]TRACK_DATA
}
type
  TRACK_DATA = record
    Reserved: Byte;
    _bitfield: Byte;
    TrackNumber: Byte;
    Reserved1: Byte;
    Address: array[0..3] of Byte;
  end;

  CDROM_TOC_SESSION_DATA = record
    Length: array[0..1] of Byte;
    FirstCompleteSession: Byte;
    LastCompleteSession: Byte;
    TrackData: array[0..0] of TRACK_DATA;
  end;
const TRACK_DATA = extern struct {
    Reserved: u8,
    _bitfield: u8,
    TrackNumber: u8,
    Reserved1: u8,
    Address: [4]u8,
};

const CDROM_TOC_SESSION_DATA = extern struct {
    Length: [2]u8,
    FirstCompleteSession: u8,
    LastCompleteSession: u8,
    TrackData: [1]TRACK_DATA,
};
type
  TRACK_DATA {.bycopy.} = object
    Reserved: uint8
    _bitfield: uint8
    TrackNumber: uint8
    Reserved1: uint8
    Address: array[4, uint8]

  CDROM_TOC_SESSION_DATA {.bycopy.} = object
    Length: array[2, uint8]
    FirstCompleteSession: uint8
    LastCompleteSession: uint8
    TrackData: array[1, TRACK_DATA]
struct TRACK_DATA
{
    ubyte Reserved;
    ubyte _bitfield;
    ubyte TrackNumber;
    ubyte Reserved1;
    ubyte[4] Address;
}

struct CDROM_TOC_SESSION_DATA
{
    ubyte[2] Length;
    ubyte FirstCompleteSession;
    ubyte LastCompleteSession;
    TRACK_DATA[1] TrackData;
}

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_SESSION_DATA サイズ: 12 バイト(x64)
dim st, 3    ; 4byte整数×3(構造体サイズ 12 / 4 切り上げ)
; Length : BYTE (+0, 2byte)  varptr(st)+0 を基点に操作(2byte:入れ子/配列)
; FirstCompleteSession : BYTE (+2, 1byte)  poke st,2,値  /  値 = peek(st,2)
; LastCompleteSession : BYTE (+3, 1byte)  poke st,3,値  /  値 = peek(st,3)
; TrackData : TRACK_DATA (+4, 8byte)  varptr(st)+4 を基点に操作(8byte: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 TRACK_DATA
    #field byte Reserved
    #field byte _bitfield
    #field byte TrackNumber
    #field byte Reserved1
    #field byte Address 4
#endstruct

#defstruct global CDROM_TOC_SESSION_DATA
    #field byte Length 2
    #field byte FirstCompleteSession
    #field byte LastCompleteSession
    #field TRACK_DATA TrackData 1
#endstruct

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