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D2D1_BLEND_DESCRIPTION

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
sourceBlendD2D1_BLEND4+0+0色のソースブレンド係数。
destinationBlendD2D1_BLEND4+4+4色のデスティネーションブレンド係数。
blendOperationD2D1_BLEND_OPERATION4+8+8色のブレンド演算。
sourceBlendAlphaD2D1_BLEND4+12+12アルファのソースブレンド係数。
destinationBlendAlphaD2D1_BLEND4+16+16アルファのデスティネーションブレンド係数。
blendOperationAlphaD2D1_BLEND_OPERATION4+20+20アルファのブレンド演算。
blendFactorFLOAT16+24+24ブレンドに用いる定数係数(RGBA各成分)。

各言語での定義

#include <windows.h>

// D2D1_BLEND_DESCRIPTION  (x64 40 / x86 40 バイト)
typedef struct D2D1_BLEND_DESCRIPTION {
    D2D1_BLEND sourceBlend;
    D2D1_BLEND destinationBlend;
    D2D1_BLEND_OPERATION blendOperation;
    D2D1_BLEND sourceBlendAlpha;
    D2D1_BLEND destinationBlendAlpha;
    D2D1_BLEND_OPERATION blendOperationAlpha;
    FLOAT blendFactor[4];
} D2D1_BLEND_DESCRIPTION;
using System;
using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct D2D1_BLEND_DESCRIPTION
{
    public int sourceBlend;
    public int destinationBlend;
    public int blendOperation;
    public int sourceBlendAlpha;
    public int destinationBlendAlpha;
    public int blendOperationAlpha;
    [MarshalAs(UnmanagedType.ByValArray, SizeConst = 4)] public float[] blendFactor;
}
Imports System.Runtime.InteropServices

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure D2D1_BLEND_DESCRIPTION
    Public sourceBlend As Integer
    Public destinationBlend As Integer
    Public blendOperation As Integer
    Public sourceBlendAlpha As Integer
    Public destinationBlendAlpha As Integer
    Public blendOperationAlpha As Integer
    <MarshalAs(UnmanagedType.ByValArray, SizeConst:=4)> Public blendFactor() As Single
End Structure
import ctypes
from ctypes import wintypes

class D2D1_BLEND_DESCRIPTION(ctypes.Structure):
    _fields_ = [
        ("sourceBlend", ctypes.c_int),
        ("destinationBlend", ctypes.c_int),
        ("blendOperation", ctypes.c_int),
        ("sourceBlendAlpha", ctypes.c_int),
        ("destinationBlendAlpha", ctypes.c_int),
        ("blendOperationAlpha", ctypes.c_int),
        ("blendFactor", ctypes.c_float * 4),
    ]
#[repr(C)]
pub struct D2D1_BLEND_DESCRIPTION {
    pub sourceBlend: i32,
    pub destinationBlend: i32,
    pub blendOperation: i32,
    pub sourceBlendAlpha: i32,
    pub destinationBlendAlpha: i32,
    pub blendOperationAlpha: i32,
    pub blendFactor: [f32; 4],
}
import "golang.org/x/sys/windows"

type D2D1_BLEND_DESCRIPTION struct {
	sourceBlend int32
	destinationBlend int32
	blendOperation int32
	sourceBlendAlpha int32
	destinationBlendAlpha int32
	blendOperationAlpha int32
	blendFactor [4]float32
}
type
  D2D1_BLEND_DESCRIPTION = record
    sourceBlend: Integer;
    destinationBlend: Integer;
    blendOperation: Integer;
    sourceBlendAlpha: Integer;
    destinationBlendAlpha: Integer;
    blendOperationAlpha: Integer;
    blendFactor: array[0..3] of Single;
  end;
const D2D1_BLEND_DESCRIPTION = extern struct {
    sourceBlend: i32,
    destinationBlend: i32,
    blendOperation: i32,
    sourceBlendAlpha: i32,
    destinationBlendAlpha: i32,
    blendOperationAlpha: i32,
    blendFactor: [4]f32,
};
type
  D2D1_BLEND_DESCRIPTION {.bycopy.} = object
    sourceBlend: int32
    destinationBlend: int32
    blendOperation: int32
    sourceBlendAlpha: int32
    destinationBlendAlpha: int32
    blendOperationAlpha: int32
    blendFactor: array[4, float32]
struct D2D1_BLEND_DESCRIPTION
{
    int sourceBlend;
    int destinationBlend;
    int blendOperation;
    int sourceBlendAlpha;
    int destinationBlendAlpha;
    int blendOperationAlpha;
    float[4] blendFactor;
}

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)
; D2D1_BLEND_DESCRIPTION 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)
; sourceBlend : D2D1_BLEND (+0, 4byte)  st.0 = 値  /  値 = st.0   (lpoke/lpeek も可)
; destinationBlend : D2D1_BLEND (+4, 4byte)  st.1 = 値  /  値 = st.1   (lpoke/lpeek も可)
; blendOperation : D2D1_BLEND_OPERATION (+8, 4byte)  st.2 = 値  /  値 = st.2   (lpoke/lpeek も可)
; sourceBlendAlpha : D2D1_BLEND (+12, 4byte)  st.3 = 値  /  値 = st.3   (lpoke/lpeek も可)
; destinationBlendAlpha : D2D1_BLEND (+16, 4byte)  st.4 = 値  /  値 = st.4   (lpoke/lpeek も可)
; blendOperationAlpha : D2D1_BLEND_OPERATION (+20, 4byte)  st.5 = 値  /  値 = st.5   (lpoke/lpeek も可)
; blendFactor : FLOAT (+24, 16byte)  varptr(st)+24 を基点に操作(16byte: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。
#defstruct global D2D1_BLEND_DESCRIPTION
    #field int sourceBlend
    #field int destinationBlend
    #field int blendOperation
    #field int sourceBlendAlpha
    #field int destinationBlendAlpha
    #field int blendOperationAlpha
    #field float blendFactor 4
#endstruct

stdim st, D2D1_BLEND_DESCRIPTION        ; NSTRUCT 変数を確保
st->sourceBlend = 100
mes "sourceBlend=" + st->sourceBlend