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DEVPROPERTY

構造体
サイズx64: 48 バイト / x86: 40 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

フィールドサイズx64x86説明
CompKeyDEVPROPCOMPKEY32/28+0+0プロパティを識別する複合キー(DEVPROPCOMPKEY)。
TypeDEVPROPTYPE4+32+28プロパティ値のデータ型を示すDEVPROPTYPE値。
BufferSizeDWORD4+36+32Bufferが指す値データのサイズをバイトで表す。
Buffervoid*8/4+40+36プロパティ値の実体データを指すポインタ。NULL可。

各言語での定義

#include <windows.h>

// DEVPROPKEY  (x64 20 / x86 20 バイト)
typedef struct DEVPROPKEY {
    GUID fmtid;
    DWORD pid;
} DEVPROPKEY;

// DEVPROPCOMPKEY  (x64 32 / x86 28 バイト)
typedef struct DEVPROPCOMPKEY {
    DEVPROPKEY Key;
    DEVPROPSTORE Store;
    LPWSTR LocaleName;
} DEVPROPCOMPKEY;

// DEVPROPERTY  (x64 48 / x86 40 バイト)
typedef struct DEVPROPERTY {
    DEVPROPCOMPKEY CompKey;
    DEVPROPTYPE Type;
    DWORD BufferSize;
    void* Buffer;
} DEVPROPERTY;
using System;
using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct DEVPROPKEY
{
    public Guid fmtid;
    public uint pid;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct DEVPROPCOMPKEY
{
    public DEVPROPKEY Key;
    public int Store;
    public IntPtr LocaleName;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct DEVPROPERTY
{
    public DEVPROPCOMPKEY CompKey;
    public uint Type;
    public uint BufferSize;
    public IntPtr Buffer;
}
Imports System.Runtime.InteropServices

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure DEVPROPKEY
    Public fmtid As Guid
    Public pid As UInteger
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure DEVPROPCOMPKEY
    Public Key As DEVPROPKEY
    Public Store As Integer
    Public LocaleName As IntPtr
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure DEVPROPERTY
    Public CompKey As DEVPROPCOMPKEY
    Public Type As UInteger
    Public BufferSize As UInteger
    Public Buffer As IntPtr
End Structure
import ctypes
from ctypes import wintypes

class DEVPROPKEY(ctypes.Structure):
    _fields_ = [
        ("fmtid", GUID),
        ("pid", wintypes.DWORD),
    ]

class DEVPROPCOMPKEY(ctypes.Structure):
    _fields_ = [
        ("Key", DEVPROPKEY),
        ("Store", ctypes.c_int),
        ("LocaleName", ctypes.c_void_p),
    ]

class DEVPROPERTY(ctypes.Structure):
    _fields_ = [
        ("CompKey", DEVPROPCOMPKEY),
        ("Type", wintypes.DWORD),
        ("BufferSize", wintypes.DWORD),
        ("Buffer", ctypes.c_void_p),
    ]
#[repr(C)]
pub struct DEVPROPKEY {
    pub fmtid: GUID,
    pub pid: u32,
}

#[repr(C)]
pub struct DEVPROPCOMPKEY {
    pub Key: DEVPROPKEY,
    pub Store: i32,
    pub LocaleName: *mut core::ffi::c_void,
}

#[repr(C)]
pub struct DEVPROPERTY {
    pub CompKey: DEVPROPCOMPKEY,
    pub Type: u32,
    pub BufferSize: u32,
    pub Buffer: *mut core::ffi::c_void,
}
import "golang.org/x/sys/windows"

type DEVPROPKEY struct {
	fmtid windows.GUID
	pid uint32
}

type DEVPROPCOMPKEY struct {
	Key DEVPROPKEY
	Store int32
	LocaleName uintptr
}

type DEVPROPERTY struct {
	CompKey DEVPROPCOMPKEY
	Type uint32
	BufferSize uint32
	Buffer uintptr
}
type
  DEVPROPKEY = record
    fmtid: TGUID;
    pid: DWORD;
  end;

  DEVPROPCOMPKEY = record
    Key: DEVPROPKEY;
    Store: Integer;
    LocaleName: Pointer;
  end;

  DEVPROPERTY = record
    CompKey: DEVPROPCOMPKEY;
    Type: DWORD;
    BufferSize: DWORD;
    Buffer: Pointer;
  end;
const DEVPROPKEY = extern struct {
    fmtid: GUID,
    pid: u32,
};

const DEVPROPCOMPKEY = extern struct {
    Key: DEVPROPKEY,
    Store: i32,
    LocaleName: ?*anyopaque,
};

const DEVPROPERTY = extern struct {
    CompKey: DEVPROPCOMPKEY,
    Type: u32,
    BufferSize: u32,
    Buffer: ?*anyopaque,
};
type
  DEVPROPKEY {.bycopy.} = object
    fmtid: GUID
    pid: uint32

  DEVPROPCOMPKEY {.bycopy.} = object
    Key: DEVPROPKEY
    Store: int32
    LocaleName: pointer

  DEVPROPERTY {.bycopy.} = object
    CompKey: DEVPROPCOMPKEY
    Type: uint32
    BufferSize: uint32
    Buffer: pointer
struct DEVPROPKEY
{
    GUID fmtid;
    uint pid;
}

struct DEVPROPCOMPKEY
{
    DEVPROPKEY Key;
    int Store;
    void* LocaleName;
}

struct DEVPROPERTY
{
    DEVPROPCOMPKEY CompKey;
    uint Type;
    uint BufferSize;
    void* Buffer;
}

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。(x86 レイアウト)
; DEVPROPERTY サイズ: 40 バイト(x86)
dim st, 10    ; 4byte整数×10(構造体サイズ 40 / 4 切り上げ)
; CompKey : DEVPROPCOMPKEY (+0, 28byte)  varptr(st)+0 を基点に操作(28byte:入れ子/配列)
; Type : DEVPROPTYPE (+28, 4byte)  st.7 = 値  /  値 = st.7   (lpoke/lpeek も可)
; BufferSize : DWORD (+32, 4byte)  st.8 = 値  /  値 = st.8   (lpoke/lpeek も可)
; Buffer : void* (+36, 4byte)  st.9 = 値  /  値 = st.9   (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。
; 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)
; DEVPROPERTY サイズ: 48 バイト(x64)
dim st, 12    ; 4byte整数×12(構造体サイズ 48 / 4 切り上げ)
; CompKey : DEVPROPCOMPKEY (+0, 32byte)  varptr(st)+0 を基点に操作(32byte:入れ子/配列)
; Type : DEVPROPTYPE (+32, 4byte)  st.8 = 値  /  値 = st.8   (lpoke/lpeek も可)
; BufferSize : DWORD (+36, 4byte)  st.9 = 値  /  値 = st.9   (lpoke/lpeek も可)
; Buffer : void* (+40, 8byte)  qpoke st,40,値 / qpeek(st,40)  ※IronHSPのみ。3.7/3.8は lpoke st,40,下位 : lpoke st,44,上位
; ※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 GUID, pack=1
    #field int Data1
    #field short Data2
    #field short Data3
    #field byte Data4 8
#endstruct

#defstruct global DEVPROPKEY
    #field GUID fmtid
    #field int pid
#endstruct

#defstruct global DEVPROPCOMPKEY
    #field DEVPROPKEY Key
    #field int Store
    #field intptr LocaleName
#endstruct

#defstruct global DEVPROPERTY
    #field DEVPROPCOMPKEY CompKey
    #field int Type
    #field int BufferSize
    #field intptr Buffer
#endstruct

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