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EMRANGLEARC

構造体
📘 Microsoft Learn (日本語) · English
サイズx64: 28 バイト / x86: 28 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
emrEMR8+0+0共通レコードヘッダを表すEMR構造体。
ptlCenterPOINTL8+8+8円弧の中心座標を表すPOINTL構造体。
nRadiusDWORD4+16+16円弧の半径を論理単位で表す。
eStartAngleFLOAT4+20+20円弧の開始角度を度単位の浮動小数点で表す。
eSweepAngleFLOAT4+24+24円弧の掃引角度を度単位の浮動小数点で表す。

各言語での定義

#include <windows.h>

// EMR  (x64 8 / x86 8 バイト)
typedef struct EMR {
    ENHANCED_METAFILE_RECORD_TYPE iType;
    DWORD nSize;
} EMR;

// POINTL  (x64 8 / x86 8 バイト)
typedef struct POINTL {
    INT x;
    INT y;
} POINTL;

// EMRANGLEARC  (x64 28 / x86 28 バイト)
typedef struct EMRANGLEARC {
    EMR emr;
    POINTL ptlCenter;
    DWORD nRadius;
    FLOAT eStartAngle;
    FLOAT eSweepAngle;
} EMRANGLEARC;
using System;
using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct EMR
{
    public uint iType;
    public uint nSize;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct POINTL
{
    public int x;
    public int y;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct EMRANGLEARC
{
    public EMR emr;
    public POINTL ptlCenter;
    public uint nRadius;
    public float eStartAngle;
    public float eSweepAngle;
}
Imports System.Runtime.InteropServices

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure EMR
    Public iType As UInteger
    Public nSize As UInteger
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure POINTL
    Public x As Integer
    Public y As Integer
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure EMRANGLEARC
    Public emr As EMR
    Public ptlCenter As POINTL
    Public nRadius As UInteger
    Public eStartAngle As Single
    Public eSweepAngle As Single
End Structure
import ctypes
from ctypes import wintypes

class EMR(ctypes.Structure):
    _fields_ = [
        ("iType", wintypes.DWORD),
        ("nSize", wintypes.DWORD),
    ]

class POINTL(ctypes.Structure):
    _fields_ = [
        ("x", ctypes.c_int),
        ("y", ctypes.c_int),
    ]

class EMRANGLEARC(ctypes.Structure):
    _fields_ = [
        ("emr", EMR),
        ("ptlCenter", POINTL),
        ("nRadius", wintypes.DWORD),
        ("eStartAngle", ctypes.c_float),
        ("eSweepAngle", ctypes.c_float),
    ]
#[repr(C)]
pub struct EMR {
    pub iType: u32,
    pub nSize: u32,
}

#[repr(C)]
pub struct POINTL {
    pub x: i32,
    pub y: i32,
}

#[repr(C)]
pub struct EMRANGLEARC {
    pub emr: EMR,
    pub ptlCenter: POINTL,
    pub nRadius: u32,
    pub eStartAngle: f32,
    pub eSweepAngle: f32,
}
import "golang.org/x/sys/windows"

type EMR struct {
	iType uint32
	nSize uint32
}

type POINTL struct {
	x int32
	y int32
}

type EMRANGLEARC struct {
	emr EMR
	ptlCenter POINTL
	nRadius uint32
	eStartAngle float32
	eSweepAngle float32
}
type
  EMR = record
    iType: DWORD;
    nSize: DWORD;
  end;

  POINTL = record
    x: Integer;
    y: Integer;
  end;

  EMRANGLEARC = record
    emr: EMR;
    ptlCenter: POINTL;
    nRadius: DWORD;
    eStartAngle: Single;
    eSweepAngle: Single;
  end;
const EMR = extern struct {
    iType: u32,
    nSize: u32,
};

const POINTL = extern struct {
    x: i32,
    y: i32,
};

const EMRANGLEARC = extern struct {
    emr: EMR,
    ptlCenter: POINTL,
    nRadius: u32,
    eStartAngle: f32,
    eSweepAngle: f32,
};
type
  EMR {.bycopy.} = object
    iType: uint32
    nSize: uint32

  POINTL {.bycopy.} = object
    x: int32
    y: int32

  EMRANGLEARC {.bycopy.} = object
    emr: EMR
    ptlCenter: POINTL
    nRadius: uint32
    eStartAngle: float32
    eSweepAngle: float32
struct EMR
{
    uint iType;
    uint nSize;
}

struct POINTL
{
    int x;
    int y;
}

struct EMRANGLEARC
{
    EMR emr;
    POINTL ptlCenter;
    uint nRadius;
    float eStartAngle;
    float eSweepAngle;
}

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)
; EMRANGLEARC サイズ: 28 バイト(x64)
dim st, 7    ; 4byte整数×7(構造体サイズ 28 / 4 切り上げ)
; emr : EMR (+0, 8byte)  varptr(st)+0 を基点に操作(8byte:入れ子/配列)
; ptlCenter : POINTL (+8, 8byte)  varptr(st)+8 を基点に操作(8byte:入れ子/配列)
; nRadius : DWORD (+16, 4byte)  st.4 = 値  /  値 = st.4   (lpoke/lpeek も可)
; eStartAngle : FLOAT (+20, 4byte)  st.5 = 値  /  値 = st.5   (lpoke/lpeek も可)
; eSweepAngle : FLOAT (+24, 4byte)  st.6 = 値  /  値 = st.6   (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。
; ※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 EMR
    #field int iType
    #field int nSize
#endstruct

#defstruct global POINTL
    #field int x
    #field int y
#endstruct

#defstruct global EMRANGLEARC
    #field EMR emr
    #field POINTL ptlCenter
    #field int nRadius
    #field float eStartAngle
    #field float eSweepAngle
#endstruct

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