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EMRPOLYPOLYLINE16

構造体
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サイズx64: 40 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複数ポリラインの外接矩形を表すRECTL構造体。
nPolysDWORD4+24+24ポリラインの本数を表す。
cptsDWORD4+28+28全ポリラインを合わせた総頂点数を表す。
aPolyCountsDWORD4+32+32各ポリラインの頂点数を格納する配列の先頭(可変長)。
aptsPOINTS4+36+36全頂点の16ビット座標を格納するPOINTS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;

// POINTS  (x64 4 / x86 4 バイト)
typedef struct POINTS {
    SHORT x;
    SHORT y;
} POINTS;

// EMRPOLYPOLYLINE16  (x64 40 / x86 40 バイト)
typedef struct EMRPOLYPOLYLINE16 {
    EMR emr;
    RECTL rclBounds;
    DWORD nPolys;
    DWORD cpts;
    DWORD aPolyCounts[1];
    POINTS apts[1];
} EMRPOLYPOLYLINE16;
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 POINTS
{
    public short x;
    public short y;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct EMRPOLYPOLYLINE16
{
    public EMR emr;
    public RECTL rclBounds;
    public uint nPolys;
    public uint cpts;
    [MarshalAs(UnmanagedType.ByValArray, SizeConst = 1)] public uint[] aPolyCounts;
    [MarshalAs(UnmanagedType.ByValArray, SizeConst = 1)] public POINTS[] apts;
}
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 POINTS
    Public x As Short
    Public y As Short
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure EMRPOLYPOLYLINE16
    Public emr As EMR
    Public rclBounds As RECTL
    Public nPolys As UInteger
    Public cpts As UInteger
    <MarshalAs(UnmanagedType.ByValArray, SizeConst:=1)> Public aPolyCounts() As UInteger
    <MarshalAs(UnmanagedType.ByValArray, SizeConst:=1)> Public apts() As POINTS
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 POINTS(ctypes.Structure):
    _fields_ = [
        ("x", ctypes.c_short),
        ("y", ctypes.c_short),
    ]

class EMRPOLYPOLYLINE16(ctypes.Structure):
    _fields_ = [
        ("emr", EMR),
        ("rclBounds", RECTL),
        ("nPolys", wintypes.DWORD),
        ("cpts", wintypes.DWORD),
        ("aPolyCounts", wintypes.DWORD * 1),
        ("apts", POINTS * 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 POINTS {
    pub x: i16,
    pub y: i16,
}

#[repr(C)]
pub struct EMRPOLYPOLYLINE16 {
    pub emr: EMR,
    pub rclBounds: RECTL,
    pub nPolys: u32,
    pub cpts: u32,
    pub aPolyCounts: [u32; 1],
    pub apts: [POINTS; 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 POINTS struct {
	x int16
	y int16
}

type EMRPOLYPOLYLINE16 struct {
	emr EMR
	rclBounds RECTL
	nPolys uint32
	cpts uint32
	aPolyCounts [1]uint32
	apts [1]POINTS
}
type
  EMR = record
    iType: DWORD;
    nSize: DWORD;
  end;

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

  POINTS = record
    x: Smallint;
    y: Smallint;
  end;

  EMRPOLYPOLYLINE16 = record
    emr: EMR;
    rclBounds: RECTL;
    nPolys: DWORD;
    cpts: DWORD;
    aPolyCounts: array[0..0] of DWORD;
    apts: array[0..0] of POINTS;
  end;
const EMR = extern struct {
    iType: u32,
    nSize: u32,
};

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

const POINTS = extern struct {
    x: i16,
    y: i16,
};

const EMRPOLYPOLYLINE16 = extern struct {
    emr: EMR,
    rclBounds: RECTL,
    nPolys: u32,
    cpts: u32,
    aPolyCounts: [1]u32,
    apts: [1]POINTS,
};
type
  EMR {.bycopy.} = object
    iType: uint32
    nSize: uint32

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

  POINTS {.bycopy.} = object
    x: int16
    y: int16

  EMRPOLYPOLYLINE16 {.bycopy.} = object
    emr: EMR
    rclBounds: RECTL
    nPolys: uint32
    cpts: uint32
    aPolyCounts: array[1, uint32]
    apts: array[1, POINTS]
struct EMR
{
    uint iType;
    uint nSize;
}

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

struct POINTS
{
    short x;
    short y;
}

struct EMRPOLYPOLYLINE16
{
    EMR emr;
    RECTL rclBounds;
    uint nPolys;
    uint cpts;
    uint[1] aPolyCounts;
    POINTS[1] apts;
}

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)
; EMRPOLYPOLYLINE16 サイズ: 40 バイト(x64)
dim st, 10    ; 4byte整数×10(構造体サイズ 40 / 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)
; nPolys : DWORD (+24, 4byte)  st.6 = 値  /  値 = st.6   (lpoke/lpeek も可)
; cpts : DWORD (+28, 4byte)  st.7 = 値  /  値 = st.7   (lpoke/lpeek も可)
; aPolyCounts : DWORD (+32, 4byte)  varptr(st)+32 を基点に操作(4byte:入れ子/配列)
; apts : POINTS (+36, 4byte)  varptr(st)+36 を基点に操作(4byte: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 POINTS
    #field short x
    #field short y
#endstruct

#defstruct global EMRPOLYPOLYLINE16
    #field EMR emr
    #field RECTL rclBounds
    #field int nPolys
    #field int cpts
    #field int aPolyCounts 1
    #field POINTS apts 1
#endstruct

stdim st, EMRPOLYPOLYLINE16        ; NSTRUCT 変数を確保
st->nPolys = 100
mes "nPolys=" + st->nPolys