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USB_DEVICE_CHARACTERISTICS

構造体
サイズx64: 24 バイト / x86: 24 バイトパッキング1

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
VersionDWORD4+0+0本構造体のバージョン番号。
ReservedDWORD8+4+4将来拡張用の予約領域。0を設定する。
UsbDeviceCharacteristicsFlagsDWORD4+12+12デバイス特性を示すフラグ集合。
MaximumSendPathDelayInMilliSecondsDWORD4+16+16送信経路の最大遅延(ミリ秒)。
MaximumCompletionPathDelayInMilliSecondsDWORD4+20+20完了経路の最大遅延(ミリ秒)。

各言語での定義

#include <windows.h>

// USB_DEVICE_CHARACTERISTICS  (x64 24 / x86 24 バイト)
#pragma pack(push, 1)
typedef struct USB_DEVICE_CHARACTERISTICS {
    DWORD Version;
    DWORD Reserved[2];
    DWORD UsbDeviceCharacteristicsFlags;
    DWORD MaximumSendPathDelayInMilliSeconds;
    DWORD MaximumCompletionPathDelayInMilliSeconds;
} USB_DEVICE_CHARACTERISTICS;
#pragma pack(pop)
using System;
using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential, Pack = 1, CharSet = CharSet.Unicode)]
public struct USB_DEVICE_CHARACTERISTICS
{
    public uint Version;
    [MarshalAs(UnmanagedType.ByValArray, SizeConst = 2)] public uint[] Reserved;
    public uint UsbDeviceCharacteristicsFlags;
    public uint MaximumSendPathDelayInMilliSeconds;
    public uint MaximumCompletionPathDelayInMilliSeconds;
}
Imports System.Runtime.InteropServices

<StructLayout(LayoutKind.Sequential, Pack:=1, CharSet:=CharSet.Unicode)>
Public Structure USB_DEVICE_CHARACTERISTICS
    Public Version As UInteger
    <MarshalAs(UnmanagedType.ByValArray, SizeConst:=2)> Public Reserved() As UInteger
    Public UsbDeviceCharacteristicsFlags As UInteger
    Public MaximumSendPathDelayInMilliSeconds As UInteger
    Public MaximumCompletionPathDelayInMilliSeconds As UInteger
End Structure
import ctypes
from ctypes import wintypes

class USB_DEVICE_CHARACTERISTICS(ctypes.Structure):
    _pack_ = 1
    _fields_ = [
        ("Version", wintypes.DWORD),
        ("Reserved", wintypes.DWORD * 2),
        ("UsbDeviceCharacteristicsFlags", wintypes.DWORD),
        ("MaximumSendPathDelayInMilliSeconds", wintypes.DWORD),
        ("MaximumCompletionPathDelayInMilliSeconds", wintypes.DWORD),
    ]
#[repr(C, packed(1))]
pub struct USB_DEVICE_CHARACTERISTICS {
    pub Version: u32,
    pub Reserved: [u32; 2],
    pub UsbDeviceCharacteristicsFlags: u32,
    pub MaximumSendPathDelayInMilliSeconds: u32,
    pub MaximumCompletionPathDelayInMilliSeconds: u32,
}
import "golang.org/x/sys/windows"

type USB_DEVICE_CHARACTERISTICS struct {
	Version uint32
	Reserved [2]uint32
	UsbDeviceCharacteristicsFlags uint32
	MaximumSendPathDelayInMilliSeconds uint32
	MaximumCompletionPathDelayInMilliSeconds uint32
}
type
  USB_DEVICE_CHARACTERISTICS = packed record
    Version: DWORD;
    Reserved: array[0..1] of DWORD;
    UsbDeviceCharacteristicsFlags: DWORD;
    MaximumSendPathDelayInMilliSeconds: DWORD;
    MaximumCompletionPathDelayInMilliSeconds: DWORD;
  end;
const USB_DEVICE_CHARACTERISTICS = extern struct {
    Version: u32,
    Reserved: [2]u32,
    UsbDeviceCharacteristicsFlags: u32,
    MaximumSendPathDelayInMilliSeconds: u32,
    MaximumCompletionPathDelayInMilliSeconds: u32,
};
type
  USB_DEVICE_CHARACTERISTICS {.packed.} = object
    Version: uint32
    Reserved: array[2, uint32]
    UsbDeviceCharacteristicsFlags: uint32
    MaximumSendPathDelayInMilliSeconds: uint32
    MaximumCompletionPathDelayInMilliSeconds: uint32
align(1)
struct USB_DEVICE_CHARACTERISTICS
{
    uint Version;
    uint[2] Reserved;
    uint UsbDeviceCharacteristicsFlags;
    uint MaximumSendPathDelayInMilliSeconds;
    uint MaximumCompletionPathDelayInMilliSeconds;
}

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)
; USB_DEVICE_CHARACTERISTICS サイズ: 24 バイト(x64)
dim st, 6    ; 4byte整数×6(構造体サイズ 24 / 4 切り上げ)
; Version : DWORD (+0, 4byte)  st.0 = 値  /  値 = st.0   (lpoke/lpeek も可)
; Reserved : DWORD (+4, 8byte)  varptr(st)+4 を基点に操作(8byte:入れ子/配列)
; UsbDeviceCharacteristicsFlags : DWORD (+12, 4byte)  st.3 = 値  /  値 = st.3   (lpoke/lpeek も可)
; MaximumSendPathDelayInMilliSeconds : DWORD (+16, 4byte)  st.4 = 値  /  値 = st.4   (lpoke/lpeek も可)
; MaximumCompletionPathDelayInMilliSeconds : DWORD (+20, 4byte)  st.5 = 値  /  値 = st.5   (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。
#defstruct global USB_DEVICE_CHARACTERISTICS, pack=1
    #field int Version
    #field int Reserved 2
    #field int UsbDeviceCharacteristicsFlags
    #field int MaximumSendPathDelayInMilliSeconds
    #field int MaximumCompletionPathDelayInMilliSeconds
#endstruct

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