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BTH_LE_GATT_DESCRIPTOR

構造体
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サイズx64: 32 バイト / x86: 32 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
ServiceHandleWORD2+0+0この記述子が属するサービスの属性ハンドル。
CharacteristicHandleWORD2+2+2この記述子が属する特性の属性ハンドル。
DescriptorTypeBTH_LE_GATT_DESCRIPTOR_TYPE4+4+4記述子の種類を示す列挙値。CCCDや拡張プロパティ等を表す。
DescriptorUuidBTH_LE_UUID20+8+8記述子を識別するUUIDを保持するBTH_LE_UUID。
AttributeHandleWORD2+28+28記述子の属性ハンドルを示す16ビット値。

各言語での定義

#include <windows.h>

// BTH_LE_UUID  (x64 20 / x86 20 バイト)
typedef struct BTH_LE_UUID {
    BOOLEAN IsShortUuid;
    _Value_e__Union Value;
} BTH_LE_UUID;

// BTH_LE_GATT_DESCRIPTOR  (x64 32 / x86 32 バイト)
typedef struct BTH_LE_GATT_DESCRIPTOR {
    WORD ServiceHandle;
    WORD CharacteristicHandle;
    BTH_LE_GATT_DESCRIPTOR_TYPE DescriptorType;
    BTH_LE_UUID DescriptorUuid;
    WORD AttributeHandle;
} BTH_LE_GATT_DESCRIPTOR;
using System;
using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct BTH_LE_UUID
{
    [MarshalAs(UnmanagedType.U1)] public bool IsShortUuid;
    public _Value_e__Union Value;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct BTH_LE_GATT_DESCRIPTOR
{
    public ushort ServiceHandle;
    public ushort CharacteristicHandle;
    public int DescriptorType;
    public BTH_LE_UUID DescriptorUuid;
    public ushort AttributeHandle;
}
Imports System.Runtime.InteropServices

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure BTH_LE_UUID
    <MarshalAs(UnmanagedType.U1)> Public IsShortUuid As Boolean
    Public Value As _Value_e__Union
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure BTH_LE_GATT_DESCRIPTOR
    Public ServiceHandle As UShort
    Public CharacteristicHandle As UShort
    Public DescriptorType As Integer
    Public DescriptorUuid As BTH_LE_UUID
    Public AttributeHandle As UShort
End Structure
import ctypes
from ctypes import wintypes

class BTH_LE_UUID(ctypes.Structure):
    _fields_ = [
        ("IsShortUuid", ctypes.c_byte),
        ("Value", _Value_e__Union),
    ]

class BTH_LE_GATT_DESCRIPTOR(ctypes.Structure):
    _fields_ = [
        ("ServiceHandle", ctypes.c_ushort),
        ("CharacteristicHandle", ctypes.c_ushort),
        ("DescriptorType", ctypes.c_int),
        ("DescriptorUuid", BTH_LE_UUID),
        ("AttributeHandle", ctypes.c_ushort),
    ]
#[repr(C)]
pub struct BTH_LE_UUID {
    pub IsShortUuid: u8,
    pub Value: _Value_e__Union,
}

#[repr(C)]
pub struct BTH_LE_GATT_DESCRIPTOR {
    pub ServiceHandle: u16,
    pub CharacteristicHandle: u16,
    pub DescriptorType: i32,
    pub DescriptorUuid: BTH_LE_UUID,
    pub AttributeHandle: u16,
}
import "golang.org/x/sys/windows"

type BTH_LE_UUID struct {
	IsShortUuid byte
	Value _Value_e__Union
}

type BTH_LE_GATT_DESCRIPTOR struct {
	ServiceHandle uint16
	CharacteristicHandle uint16
	DescriptorType int32
	DescriptorUuid BTH_LE_UUID
	AttributeHandle uint16
}
type
  BTH_LE_UUID = record
    IsShortUuid: ByteBool;
    Value: _Value_e__Union;
  end;

  BTH_LE_GATT_DESCRIPTOR = record
    ServiceHandle: Word;
    CharacteristicHandle: Word;
    DescriptorType: Integer;
    DescriptorUuid: BTH_LE_UUID;
    AttributeHandle: Word;
  end;
const BTH_LE_UUID = extern struct {
    IsShortUuid: u8,
    Value: _Value_e__Union,
};

const BTH_LE_GATT_DESCRIPTOR = extern struct {
    ServiceHandle: u16,
    CharacteristicHandle: u16,
    DescriptorType: i32,
    DescriptorUuid: BTH_LE_UUID,
    AttributeHandle: u16,
};
type
  BTH_LE_UUID {.bycopy.} = object
    IsShortUuid: uint8
    Value: _Value_e__Union

  BTH_LE_GATT_DESCRIPTOR {.bycopy.} = object
    ServiceHandle: uint16
    CharacteristicHandle: uint16
    DescriptorType: int32
    DescriptorUuid: BTH_LE_UUID
    AttributeHandle: uint16
struct BTH_LE_UUID
{
    ubyte IsShortUuid;
    _Value_e__Union Value;
}

struct BTH_LE_GATT_DESCRIPTOR
{
    ushort ServiceHandle;
    ushort CharacteristicHandle;
    int DescriptorType;
    BTH_LE_UUID DescriptorUuid;
    ushort AttributeHandle;
}

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)
; BTH_LE_GATT_DESCRIPTOR サイズ: 32 バイト(x64)
dim st, 8    ; 4byte整数×8(構造体サイズ 32 / 4 切り上げ)
; ServiceHandle : WORD (+0, 2byte)  wpoke st,0,値  /  値 = wpeek(st,0)
; CharacteristicHandle : WORD (+2, 2byte)  wpoke st,2,値  /  値 = wpeek(st,2)
; DescriptorType : BTH_LE_GATT_DESCRIPTOR_TYPE (+4, 4byte)  st.1 = 値  /  値 = st.1   (lpoke/lpeek も可)
; DescriptorUuid : BTH_LE_UUID (+8, 20byte)  varptr(st)+8 を基点に操作(20byte:入れ子/配列)
; AttributeHandle : WORD (+28, 2byte)  wpoke st,28,値  /  値 = wpeek(st,28)
; ※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 BTH_LE_UUID
    #field bool1 IsShortUuid
    #field byte Value 16
#endstruct

#defstruct global BTH_LE_GATT_DESCRIPTOR
    #field short ServiceHandle
    #field short CharacteristicHandle
    #field int DescriptorType
    #field BTH_LE_UUID DescriptorUuid
    #field short AttributeHandle
#endstruct

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