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EMRPOLYLINE

構造体
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サイズx64: 36 バイト / x86: 36 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。
rclBoundsRECTL16+8+8ポリラインの外接矩形を表すRECTL構造体。
cptlDWORD4+24+24aptl配列に含まれる点の個数を表す。
aptlPOINTL8+28+28ポリラインを構成する頂点のPOINTL配列の先頭(可変長)。

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;

// RECTL  (x64 16 / x86 16 バイト)
typedef struct RECTL {
    INT left;
    INT top;
    INT right;
    INT bottom;
} RECTL;

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

// EMRPOLYLINE  (x64 36 / x86 36 バイト)
typedef struct EMRPOLYLINE {
    EMR emr;
    RECTL rclBounds;
    DWORD cptl;
    POINTL aptl[1];
} EMRPOLYLINE;
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 RECTL
{
    public int left;
    public int top;
    public int right;
    public int bottom;
}

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

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct EMRPOLYLINE
{
    public EMR emr;
    public RECTL rclBounds;
    public uint cptl;
    [MarshalAs(UnmanagedType.ByValArray, SizeConst = 1)] public POINTL[] aptl;
}
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 RECTL
    Public left As Integer
    Public top As Integer
    Public right As Integer
    Public bottom As Integer
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 EMRPOLYLINE
    Public emr As EMR
    Public rclBounds As RECTL
    Public cptl As UInteger
    <MarshalAs(UnmanagedType.ByValArray, SizeConst:=1)> Public aptl() As POINTL
End Structure
import ctypes
from ctypes import wintypes

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

class RECTL(ctypes.Structure):
    _fields_ = [
        ("left", ctypes.c_int),
        ("top", ctypes.c_int),
        ("right", ctypes.c_int),
        ("bottom", ctypes.c_int),
    ]

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

class EMRPOLYLINE(ctypes.Structure):
    _fields_ = [
        ("emr", EMR),
        ("rclBounds", RECTL),
        ("cptl", wintypes.DWORD),
        ("aptl", POINTL * 1),
    ]
#[repr(C)]
pub struct EMR {
    pub iType: u32,
    pub nSize: u32,
}

#[repr(C)]
pub struct RECTL {
    pub left: i32,
    pub top: i32,
    pub right: i32,
    pub bottom: i32,
}

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

#[repr(C)]
pub struct EMRPOLYLINE {
    pub emr: EMR,
    pub rclBounds: RECTL,
    pub cptl: u32,
    pub aptl: [POINTL; 1],
}
import "golang.org/x/sys/windows"

type EMR struct {
	iType uint32
	nSize uint32
}

type RECTL struct {
	left int32
	top int32
	right int32
	bottom int32
}

type POINTL struct {
	x int32
	y int32
}

type EMRPOLYLINE struct {
	emr EMR
	rclBounds RECTL
	cptl uint32
	aptl [1]POINTL
}
type
  EMR = record
    iType: DWORD;
    nSize: DWORD;
  end;

  RECTL = record
    left: Integer;
    top: Integer;
    right: Integer;
    bottom: Integer;
  end;

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

  EMRPOLYLINE = record
    emr: EMR;
    rclBounds: RECTL;
    cptl: DWORD;
    aptl: array[0..0] of POINTL;
  end;
const EMR = extern struct {
    iType: u32,
    nSize: u32,
};

const RECTL = extern struct {
    left: i32,
    top: i32,
    right: i32,
    bottom: i32,
};

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

const EMRPOLYLINE = extern struct {
    emr: EMR,
    rclBounds: RECTL,
    cptl: u32,
    aptl: [1]POINTL,
};
type
  EMR {.bycopy.} = object
    iType: uint32
    nSize: uint32

  RECTL {.bycopy.} = object
    left: int32
    top: int32
    right: int32
    bottom: int32

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

  EMRPOLYLINE {.bycopy.} = object
    emr: EMR
    rclBounds: RECTL
    cptl: uint32
    aptl: array[1, POINTL]
struct EMR
{
    uint iType;
    uint nSize;
}

struct RECTL
{
    int left;
    int top;
    int right;
    int bottom;
}

struct POINTL
{
    int x;
    int y;
}

struct EMRPOLYLINE
{
    EMR emr;
    RECTL rclBounds;
    uint cptl;
    POINTL[1] aptl;
}

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)
; EMRPOLYLINE サイズ: 36 バイト(x64)
dim st, 9    ; 4byte整数×9(構造体サイズ 36 / 4 切り上げ)
; emr : EMR (+0, 8byte)  varptr(st)+0 を基点に操作(8byte:入れ子/配列)
; rclBounds : RECTL (+8, 16byte)  varptr(st)+8 を基点に操作(16byte:入れ子/配列)
; cptl : DWORD (+24, 4byte)  st.6 = 値  /  値 = st.6   (lpoke/lpeek も可)
; aptl : POINTL (+28, 8byte)  varptr(st)+28 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 EMR
    #field int iType
    #field int nSize
#endstruct

#defstruct global RECTL
    #field int left
    #field int top
    #field int right
    #field int bottom
#endstruct

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

#defstruct global EMRPOLYLINE
    #field EMR emr
    #field RECTL rclBounds
    #field int cptl
    #field POINTL aptl 1
#endstruct

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