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GdipDrawImagePointsRectI
関数画像の元矩形を整数3点指定領域に属性付きで描画する。
シグネチャ
// gdiplus.dll
#include <windows.h>
Status GdipDrawImagePointsRectI(
GpGraphics* graphics,
GpImage* image,
const Point* points,
INT count,
INT srcx,
INT srcy,
INT srcwidth,
INT srcheight,
Unit srcUnit,
const GpImageAttributes* imageAttributes,
INT_PTR callback,
void* callbackData
);パラメーター
| 名前 | 型 | 方向 | 説明 |
|---|---|---|---|
| graphics | GpGraphics* | inout | 描画先のGDI+グラフィックスオブジェクトへのポインタ。 |
| image | GpImage* | inout | 描画する画像オブジェクトへのポインタ。 |
| points | Point* | in | 描画先の平行四辺形を定義する点配列(Point、整数)。左上・右上・左下の3点。 |
| count | INT | in | points配列内の点の個数。通常は3。 |
| srcx | INT | in | 元画像内の切り出し開始X座標(整数)。 |
| srcy | INT | in | 元画像内の切り出し開始Y座標(整数)。 |
| srcwidth | INT | in | 元画像から切り出す幅(整数)。 |
| srcheight | INT | in | 元画像から切り出す高さ(整数)。 |
| srcUnit | Unit | in | 元矩形の座標単位を示すUnit列挙値。 |
| imageAttributes | GpImageAttributes* | in | 色調整など描画属性を指定するImageAttributesへのポインタ。NULL可。 |
| callback | INT_PTR | in | 描画中断判定用コールバック関数へのアドレス。不要なら0(NULL)。 |
| callbackData | void* | inout | コールバックへ渡す任意データへのポインタ。NULL可。 |
戻り値の型: Status
各言語での呼び出し定義
// gdiplus.dll
#include <windows.h>
Status GdipDrawImagePointsRectI(
GpGraphics* graphics,
GpImage* image,
const Point* points,
INT count,
INT srcx,
INT srcy,
INT srcwidth,
INT srcheight,
Unit srcUnit,
const GpImageAttributes* imageAttributes,
INT_PTR callback,
void* callbackData
);[DllImport("gdiplus.dll", ExactSpelling = true)]
static extern int GdipDrawImagePointsRectI(
IntPtr graphics, // GpGraphics* in/out
IntPtr image, // GpImage* in/out
IntPtr points, // Point*
int count, // INT
int srcx, // INT
int srcy, // INT
int srcwidth, // INT
int srcheight, // INT
int srcUnit, // Unit
IntPtr imageAttributes, // GpImageAttributes*
IntPtr callback, // INT_PTR
IntPtr callbackData // void* in/out
);<DllImport("gdiplus.dll", ExactSpelling:=True)>
Public Shared Function GdipDrawImagePointsRectI(
graphics As IntPtr, ' GpGraphics* in/out
image As IntPtr, ' GpImage* in/out
points As IntPtr, ' Point*
count As Integer, ' INT
srcx As Integer, ' INT
srcy As Integer, ' INT
srcwidth As Integer, ' INT
srcheight As Integer, ' INT
srcUnit As Integer, ' Unit
imageAttributes As IntPtr, ' GpImageAttributes*
callback As IntPtr, ' INT_PTR
callbackData As IntPtr ' void* in/out
) As Integer
End Function' graphics : GpGraphics* in/out
' image : GpImage* in/out
' points : Point*
' count : INT
' srcx : INT
' srcy : INT
' srcwidth : INT
' srcheight : INT
' srcUnit : Unit
' imageAttributes : GpImageAttributes*
' callback : INT_PTR
' callbackData : void* in/out
Declare PtrSafe Function GdipDrawImagePointsRectI Lib "gdiplus" ( _
ByVal graphics As LongPtr, _
ByVal image As LongPtr, _
ByVal points As LongPtr, _
ByVal count As Long, _
ByVal srcx As Long, _
ByVal srcy As Long, _
ByVal srcwidth As Long, _
ByVal srcheight As Long, _
ByVal srcUnit As Long, _
ByVal imageAttributes As LongPtr, _
ByVal callback As LongPtr, _
ByVal callbackData As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。import ctypes
from ctypes import wintypes
GdipDrawImagePointsRectI = ctypes.windll.gdiplus.GdipDrawImagePointsRectI
GdipDrawImagePointsRectI.restype = ctypes.c_int
GdipDrawImagePointsRectI.argtypes = [
ctypes.c_void_p, # graphics : GpGraphics* in/out
ctypes.c_void_p, # image : GpImage* in/out
ctypes.c_void_p, # points : Point*
ctypes.c_int, # count : INT
ctypes.c_int, # srcx : INT
ctypes.c_int, # srcy : INT
ctypes.c_int, # srcwidth : INT
ctypes.c_int, # srcheight : INT
ctypes.c_int, # srcUnit : Unit
ctypes.c_void_p, # imageAttributes : GpImageAttributes*
ctypes.c_ssize_t, # callback : INT_PTR
ctypes.POINTER(None), # callbackData : void* in/out
]require 'fiddle'
require 'fiddle/import'
lib = Fiddle.dlopen('gdiplus.dll')
GdipDrawImagePointsRectI = Fiddle::Function.new(
lib['GdipDrawImagePointsRectI'],
[
Fiddle::TYPE_VOIDP, # graphics : GpGraphics* in/out
Fiddle::TYPE_VOIDP, # image : GpImage* in/out
Fiddle::TYPE_VOIDP, # points : Point*
Fiddle::TYPE_INT, # count : INT
Fiddle::TYPE_INT, # srcx : INT
Fiddle::TYPE_INT, # srcy : INT
Fiddle::TYPE_INT, # srcwidth : INT
Fiddle::TYPE_INT, # srcheight : INT
Fiddle::TYPE_INT, # srcUnit : Unit
Fiddle::TYPE_VOIDP, # imageAttributes : GpImageAttributes*
Fiddle::TYPE_INTPTR_T, # callback : INT_PTR
Fiddle::TYPE_VOIDP, # callbackData : void* in/out
],
Fiddle::TYPE_INT)#[link(name = "gdiplus")]
extern "system" {
fn GdipDrawImagePointsRectI(
graphics: *mut GpGraphics, // GpGraphics* in/out
image: *mut GpImage, // GpImage* in/out
points: *const Point, // Point*
count: i32, // INT
srcx: i32, // INT
srcy: i32, // INT
srcwidth: i32, // INT
srcheight: i32, // INT
srcUnit: i32, // Unit
imageAttributes: *const GpImageAttributes, // GpImageAttributes*
callback: isize, // INT_PTR
callbackData: *mut () // void* in/out
) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.$sig = @"
[DllImport("gdiplus.dll")]
public static extern int GdipDrawImagePointsRectI(IntPtr graphics, IntPtr image, IntPtr points, int count, int srcx, int srcy, int srcwidth, int srcheight, int srcUnit, IntPtr imageAttributes, IntPtr callback, IntPtr callbackData);
"@
$api = Add-Type -MemberDefinition $sig -Name 'gdiplus_GdipDrawImagePointsRectI' -Namespace Win32 -PassThru
# $api::GdipDrawImagePointsRectI(graphics, image, points, count, srcx, srcy, srcwidth, srcheight, srcUnit, imageAttributes, callback, callbackData)#uselib "gdiplus.dll"
#func global GdipDrawImagePointsRectI "GdipDrawImagePointsRectI" sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr
; GdipDrawImagePointsRectI varptr(graphics), varptr(image), varptr(points), count, srcx, srcy, srcwidth, srcheight, srcUnit, varptr(imageAttributes), callback, callbackData ; 戻り値は stat
; graphics : GpGraphics* in/out -> "sptr"
; image : GpImage* in/out -> "sptr"
; points : Point* -> "sptr"
; count : INT -> "sptr"
; srcx : INT -> "sptr"
; srcy : INT -> "sptr"
; srcwidth : INT -> "sptr"
; srcheight : INT -> "sptr"
; srcUnit : Unit -> "sptr"
; imageAttributes : GpImageAttributes* -> "sptr"
; callback : INT_PTR -> "sptr"
; callbackData : void* in/out -> "sptr"
; ※HSP3.7は #func のため戻り値はシステム変数 stat に格納されます。出力引数:
#uselib "gdiplus.dll" #cfunc global GdipDrawImagePointsRectI "GdipDrawImagePointsRectI" var, var, var, int, int, int, int, int, int, var, sptr, sptr ; res = GdipDrawImagePointsRectI(graphics, image, points, count, srcx, srcy, srcwidth, srcheight, srcUnit, imageAttributes, callback, callbackData) ; graphics : GpGraphics* in/out -> "var" ; image : GpImage* in/out -> "var" ; points : Point* -> "var" ; count : INT -> "int" ; srcx : INT -> "int" ; srcy : INT -> "int" ; srcwidth : INT -> "int" ; srcheight : INT -> "int" ; srcUnit : Unit -> "int" ; imageAttributes : GpImageAttributes* -> "var" ; callback : INT_PTR -> "sptr" ; callbackData : void* in/out -> "sptr" ; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。#uselib "gdiplus.dll" #cfunc global GdipDrawImagePointsRectI "GdipDrawImagePointsRectI" sptr, sptr, sptr, int, int, int, int, int, int, sptr, sptr, sptr ; res = GdipDrawImagePointsRectI(varptr(graphics), varptr(image), varptr(points), count, srcx, srcy, srcwidth, srcheight, srcUnit, varptr(imageAttributes), callback, callbackData) ; graphics : GpGraphics* in/out -> "sptr" ; image : GpImage* in/out -> "sptr" ; points : Point* -> "sptr" ; count : INT -> "int" ; srcx : INT -> "int" ; srcy : INT -> "int" ; srcwidth : INT -> "int" ; srcheight : INT -> "int" ; srcUnit : Unit -> "int" ; imageAttributes : GpImageAttributes* -> "sptr" ; callback : INT_PTR -> "sptr" ; callbackData : void* in/out -> "sptr" ; ※出力/バッファ引数はポインタ方式(token=sptr / 呼び出しは varptr(変数))。
出力引数:
; Status GdipDrawImagePointsRectI(GpGraphics* graphics, GpImage* image, Point* points, INT count, INT srcx, INT srcy, INT srcwidth, INT srcheight, Unit srcUnit, GpImageAttributes* imageAttributes, INT_PTR callback, void* callbackData) #uselib "gdiplus.dll" #cfunc global GdipDrawImagePointsRectI "GdipDrawImagePointsRectI" var, var, var, int, int, int, int, int, int, var, intptr, intptr ; res = GdipDrawImagePointsRectI(graphics, image, points, count, srcx, srcy, srcwidth, srcheight, srcUnit, imageAttributes, callback, callbackData) ; graphics : GpGraphics* in/out -> "var" ; image : GpImage* in/out -> "var" ; points : Point* -> "var" ; count : INT -> "int" ; srcx : INT -> "int" ; srcy : INT -> "int" ; srcwidth : INT -> "int" ; srcheight : INT -> "int" ; srcUnit : Unit -> "int" ; imageAttributes : GpImageAttributes* -> "var" ; callback : INT_PTR -> "intptr" ; callbackData : void* in/out -> "intptr" ; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。; Status GdipDrawImagePointsRectI(GpGraphics* graphics, GpImage* image, Point* points, INT count, INT srcx, INT srcy, INT srcwidth, INT srcheight, Unit srcUnit, GpImageAttributes* imageAttributes, INT_PTR callback, void* callbackData) #uselib "gdiplus.dll" #cfunc global GdipDrawImagePointsRectI "GdipDrawImagePointsRectI" intptr, intptr, intptr, int, int, int, int, int, int, intptr, intptr, intptr ; res = GdipDrawImagePointsRectI(varptr(graphics), varptr(image), varptr(points), count, srcx, srcy, srcwidth, srcheight, srcUnit, varptr(imageAttributes), callback, callbackData) ; graphics : GpGraphics* in/out -> "intptr" ; image : GpImage* in/out -> "intptr" ; points : Point* -> "intptr" ; count : INT -> "int" ; srcx : INT -> "int" ; srcy : INT -> "int" ; srcwidth : INT -> "int" ; srcheight : INT -> "int" ; srcUnit : Unit -> "int" ; imageAttributes : GpImageAttributes* -> "intptr" ; callback : INT_PTR -> "intptr" ; callbackData : void* in/out -> "intptr" ; ※出力/バッファ引数はポインタ方式(token=intptr / 呼び出しは varptr(変数))。
import (
"golang.org/x/sys/windows"
"unsafe"
)
var (
gdiplus = windows.NewLazySystemDLL("gdiplus.dll")
procGdipDrawImagePointsRectI = gdiplus.NewProc("GdipDrawImagePointsRectI")
)
// graphics (GpGraphics* in/out), image (GpImage* in/out), points (Point*), count (INT), srcx (INT), srcy (INT), srcwidth (INT), srcheight (INT), srcUnit (Unit), imageAttributes (GpImageAttributes*), callback (INT_PTR), callbackData (void* in/out)
r1, _, err := procGdipDrawImagePointsRectI.Call(
uintptr(graphics),
uintptr(image),
uintptr(points),
uintptr(count),
uintptr(srcx),
uintptr(srcy),
uintptr(srcwidth),
uintptr(srcheight),
uintptr(srcUnit),
uintptr(imageAttributes),
uintptr(callback),
uintptr(callbackData),
)
_ = err // syscall.Errno (valid when the call sets last-error)
_ = r1 // Statusfunction GdipDrawImagePointsRectI(
graphics: Pointer; // GpGraphics* in/out
image: Pointer; // GpImage* in/out
points: Pointer; // Point*
count: Integer; // INT
srcx: Integer; // INT
srcy: Integer; // INT
srcwidth: Integer; // INT
srcheight: Integer; // INT
srcUnit: Integer; // Unit
imageAttributes: Pointer; // GpImageAttributes*
callback: NativeInt; // INT_PTR
callbackData: Pointer // void* in/out
): Integer; stdcall;
external 'gdiplus.dll' name 'GdipDrawImagePointsRectI';result := DllCall("gdiplus\GdipDrawImagePointsRectI"
, "Ptr", graphics ; GpGraphics* in/out
, "Ptr", image ; GpImage* in/out
, "Ptr", points ; Point*
, "Int", count ; INT
, "Int", srcx ; INT
, "Int", srcy ; INT
, "Int", srcwidth ; INT
, "Int", srcheight ; INT
, "Int", srcUnit ; Unit
, "Ptr", imageAttributes ; GpImageAttributes*
, "Ptr", callback ; INT_PTR
, "Ptr", callbackData ; void* in/out
, "Int") ; return: Status●GdipDrawImagePointsRectI(graphics, image, points, count, srcx, srcy, srcwidth, srcheight, srcUnit, imageAttributes, callback, callbackData) = DLL("gdiplus.dll", "int GdipDrawImagePointsRectI(void*, void*, void*, int, int, int, int, int, int, void*, int, void*)")
# 呼び出し: GdipDrawImagePointsRectI(graphics, image, points, count, srcx, srcy, srcwidth, srcheight, srcUnit, imageAttributes, callback, callbackData)
# graphics : GpGraphics* in/out -> "void*"
# image : GpImage* in/out -> "void*"
# points : Point* -> "void*"
# count : INT -> "int"
# srcx : INT -> "int"
# srcy : INT -> "int"
# srcwidth : INT -> "int"
# srcheight : INT -> "int"
# srcUnit : Unit -> "int"
# imageAttributes : GpImageAttributes* -> "void*"
# callback : INT_PTR -> "int"
# callbackData : void* in/out -> "void*"
# なでしこ1は32bit・ANSI(Shift_JIS)。文字列=char*(ANSI)、ポインタ/ハンドル=void*(4byte)。const std = @import("std");
extern "gdiplus" fn GdipDrawImagePointsRectI(
graphics: [*c]GpGraphics, // GpGraphics* in/out
image: [*c]GpImage, // GpImage* in/out
points: [*c]Point, // Point*
count: i32, // INT
srcx: i32, // INT
srcy: i32, // INT
srcwidth: i32, // INT
srcheight: i32, // INT
srcUnit: i32, // Unit
imageAttributes: [*c]GpImageAttributes, // GpImageAttributes*
callback: isize, // INT_PTR
callbackData: ?*anyopaque // void* in/out
) callconv(std.os.windows.WINAPI) i32;proc GdipDrawImagePointsRectI(
graphics: ptr GpGraphics, # GpGraphics* in/out
image: ptr GpImage, # GpImage* in/out
points: ptr Point, # Point*
count: int32, # INT
srcx: int32, # INT
srcy: int32, # INT
srcwidth: int32, # INT
srcheight: int32, # INT
srcUnit: int32, # Unit
imageAttributes: ptr GpImageAttributes, # GpImageAttributes*
callback: int, # INT_PTR
callbackData: pointer # void* in/out
): int32 {.importc: "GdipDrawImagePointsRectI", stdcall, dynlib: "gdiplus.dll".}pragma(lib, "gdiplus");
extern(Windows)
int GdipDrawImagePointsRectI(
GpGraphics* graphics, // GpGraphics* in/out
GpImage* image, // GpImage* in/out
Point* points, // Point*
int count, // INT
int srcx, // INT
int srcy, // INT
int srcwidth, // INT
int srcheight, // INT
int srcUnit, // Unit
GpImageAttributes* imageAttributes, // GpImageAttributes*
ptrdiff_t callback, // INT_PTR
void* callbackData // void* in/out
);ccall((:GdipDrawImagePointsRectI, "gdiplus.dll"), stdcall, Int32,
(Ptr{GpGraphics}, Ptr{GpImage}, Ptr{Point}, Int32, Int32, Int32, Int32, Int32, Int32, Ptr{GpImageAttributes}, Int, Ptr{Cvoid}),
graphics, image, points, count, srcx, srcy, srcwidth, srcheight, srcUnit, imageAttributes, callback, callbackData)
# graphics : GpGraphics* in/out -> Ptr{GpGraphics}
# image : GpImage* in/out -> Ptr{GpImage}
# points : Point* -> Ptr{Point}
# count : INT -> Int32
# srcx : INT -> Int32
# srcy : INT -> Int32
# srcwidth : INT -> Int32
# srcheight : INT -> Int32
# srcUnit : Unit -> Int32
# imageAttributes : GpImageAttributes* -> Ptr{GpImageAttributes}
# callback : INT_PTR -> Int
# callbackData : void* in/out -> Ptr{Cvoid}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。local ffi = require("ffi")
ffi.cdef[[
int32_t GdipDrawImagePointsRectI(
void* graphics,
void* image,
void* points,
int32_t count,
int32_t srcx,
int32_t srcy,
int32_t srcwidth,
int32_t srcheight,
int32_t srcUnit,
void* imageAttributes,
intptr_t callback,
void* callbackData);
]]
local gdiplus = ffi.load("gdiplus")
-- gdiplus.GdipDrawImagePointsRectI(graphics, image, points, count, srcx, srcy, srcwidth, srcheight, srcUnit, imageAttributes, callback, callbackData)
-- graphics : GpGraphics* in/out
-- image : GpImage* in/out
-- points : Point*
-- count : INT
-- srcx : INT
-- srcy : INT
-- srcwidth : INT
-- srcheight : INT
-- srcUnit : Unit
-- imageAttributes : GpImageAttributes*
-- callback : INT_PTR
-- callbackData : void* in/out
-- 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。const koffi = require('koffi');
const lib = koffi.load('gdiplus.dll');
const GdipDrawImagePointsRectI = lib.func('__stdcall', 'GdipDrawImagePointsRectI', 'int32_t', ['void *', 'void *', 'void *', 'int32_t', 'int32_t', 'int32_t', 'int32_t', 'int32_t', 'int32_t', 'void *', 'intptr_t', 'void *']);
// GdipDrawImagePointsRectI(graphics, image, points, count, srcx, srcy, srcwidth, srcheight, srcUnit, imageAttributes, callback, callbackData)
// graphics : GpGraphics* in/out -> 'void *'
// image : GpImage* in/out -> 'void *'
// points : Point* -> 'void *'
// count : INT -> 'int32_t'
// srcx : INT -> 'int32_t'
// srcy : INT -> 'int32_t'
// srcwidth : INT -> 'int32_t'
// srcheight : INT -> 'int32_t'
// srcUnit : Unit -> 'int32_t'
// imageAttributes : GpImageAttributes* -> 'void *'
// callback : INT_PTR -> 'intptr_t'
// callbackData : void* in/out -> 'void *'
// 出力ポインタは koffi.out(...) で包む。構造体は koffi.struct で定義。const lib = Deno.dlopen("gdiplus.dll", {
GdipDrawImagePointsRectI: { parameters: ["pointer", "pointer", "pointer", "i32", "i32", "i32", "i32", "i32", "i32", "pointer", "isize", "pointer"], result: "i32" },
});
// lib.symbols.GdipDrawImagePointsRectI(graphics, image, points, count, srcx, srcy, srcwidth, srcheight, srcUnit, imageAttributes, callback, callbackData)
// graphics : GpGraphics* in/out -> "pointer"
// image : GpImage* in/out -> "pointer"
// points : Point* -> "pointer"
// count : INT -> "i32"
// srcx : INT -> "i32"
// srcy : INT -> "i32"
// srcwidth : INT -> "i32"
// srcheight : INT -> "i32"
// srcUnit : Unit -> "i32"
// imageAttributes : GpImageAttributes* -> "pointer"
// callback : INT_PTR -> "isize"
// callbackData : void* in/out -> "pointer"
// 文字列引数は "buffer"(NUL 終端のバイト列を Uint8Array で渡す)。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。<?php
$ffi = FFI::cdef(<<<C
int32_t GdipDrawImagePointsRectI(
void* graphics,
void* image,
void* points,
int32_t count,
int32_t srcx,
int32_t srcy,
int32_t srcwidth,
int32_t srcheight,
int32_t srcUnit,
void* imageAttributes,
intptr_t callback,
void* callbackData);
C, "gdiplus.dll");
// $ffi->GdipDrawImagePointsRectI(graphics, image, points, count, srcx, srcy, srcwidth, srcheight, srcUnit, imageAttributes, callback, callbackData);
// graphics : GpGraphics* in/out
// image : GpImage* in/out
// points : Point*
// count : INT
// srcx : INT
// srcy : INT
// srcwidth : INT
// srcheight : INT
// srcUnit : Unit
// imageAttributes : GpImageAttributes*
// callback : INT_PTR
// callbackData : void* in/out
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;
public interface Gdiplus extends StdCallLibrary {
Gdiplus INSTANCE = Native.load("gdiplus", Gdiplus.class);
int GdipDrawImagePointsRectI(
Pointer graphics, // GpGraphics* in/out
Pointer image, // GpImage* in/out
Pointer points, // Point*
int count, // INT
int srcx, // INT
int srcy, // INT
int srcwidth, // INT
int srcheight, // INT
int srcUnit, // Unit
Pointer imageAttributes, // GpImageAttributes*
long callback, // INT_PTR
Pointer callbackData // void* in/out
);
}@[Link("gdiplus")]
lib Libgdiplus
fun GdipDrawImagePointsRectI = GdipDrawImagePointsRectI(
graphics : GpGraphics*, # GpGraphics* in/out
image : GpImage*, # GpImage* in/out
points : Point*, # Point*
count : Int32, # INT
srcx : Int32, # INT
srcy : Int32, # INT
srcwidth : Int32, # INT
srcheight : Int32, # INT
srcUnit : Int32, # Unit
imageAttributes : GpImageAttributes*, # GpImageAttributes*
callback : LibC::SSizeT, # INT_PTR
callbackData : Void* # void* in/out
) : Int32
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。import 'dart:ffi';
import 'package:ffi/ffi.dart';
typedef GdipDrawImagePointsRectINative = Int32 Function(Pointer<Void>, Pointer<Void>, Pointer<Void>, Int32, Int32, Int32, Int32, Int32, Int32, Pointer<Void>, IntPtr, Pointer<Void>);
typedef GdipDrawImagePointsRectIDart = int Function(Pointer<Void>, Pointer<Void>, Pointer<Void>, int, int, int, int, int, int, Pointer<Void>, int, Pointer<Void>);
final GdipDrawImagePointsRectI = DynamicLibrary.open('gdiplus.dll')
.lookupFunction<GdipDrawImagePointsRectINative, GdipDrawImagePointsRectIDart>('GdipDrawImagePointsRectI');
// graphics : GpGraphics* in/out -> Pointer<Void>
// image : GpImage* in/out -> Pointer<Void>
// points : Point* -> Pointer<Void>
// count : INT -> Int32
// srcx : INT -> Int32
// srcy : INT -> Int32
// srcwidth : INT -> Int32
// srcheight : INT -> Int32
// srcUnit : Unit -> Int32
// imageAttributes : GpImageAttributes* -> Pointer<Void>
// callback : INT_PTR -> IntPtr
// callbackData : void* in/out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。{$mode objfpc}{$H+}
function GdipDrawImagePointsRectI(
graphics: Pointer; // GpGraphics* in/out
image: Pointer; // GpImage* in/out
points: Pointer; // Point*
count: Integer; // INT
srcx: Integer; // INT
srcy: Integer; // INT
srcwidth: Integer; // INT
srcheight: Integer; // INT
srcUnit: Integer; // Unit
imageAttributes: Pointer; // GpImageAttributes*
callback: NativeInt; // INT_PTR
callbackData: Pointer // void* in/out
): Integer; stdcall;
external 'gdiplus.dll' name 'GdipDrawImagePointsRectI';import Foreign
import Foreign.C.Types
import Foreign.C.String
foreign import stdcall safe "GdipDrawImagePointsRectI"
c_GdipDrawImagePointsRectI :: Ptr () -> Ptr () -> Ptr () -> Int32 -> Int32 -> Int32 -> Int32 -> Int32 -> Int32 -> Ptr () -> CIntPtr -> Ptr () -> IO Int32
-- graphics : GpGraphics* in/out -> Ptr ()
-- image : GpImage* in/out -> Ptr ()
-- points : Point* -> Ptr ()
-- count : INT -> Int32
-- srcx : INT -> Int32
-- srcy : INT -> Int32
-- srcwidth : INT -> Int32
-- srcheight : INT -> Int32
-- srcUnit : Unit -> Int32
-- imageAttributes : GpImageAttributes* -> Ptr ()
-- callback : INT_PTR -> CIntPtr
-- callbackData : void* in/out -> Ptr ()
-- 要 GHC(Windows)。stdcall は x64 では ccall として扱われる。ブロックする API は safe 呼び出し推奨。open Ctypes
open Foreign
let gdipdrawimagepointsrecti =
foreign "GdipDrawImagePointsRectI"
((ptr void) @-> (ptr void) @-> (ptr void) @-> int32_t @-> int32_t @-> int32_t @-> int32_t @-> int32_t @-> int32_t @-> (ptr void) @-> intptr_t @-> (ptr void) @-> returning int32_t)
(* graphics : GpGraphics* in/out -> (ptr void) *)
(* image : GpImage* in/out -> (ptr void) *)
(* points : Point* -> (ptr void) *)
(* count : INT -> int32_t *)
(* srcx : INT -> int32_t *)
(* srcy : INT -> int32_t *)
(* srcwidth : INT -> int32_t *)
(* srcheight : INT -> int32_t *)
(* srcUnit : Unit -> int32_t *)
(* imageAttributes : GpImageAttributes* -> (ptr void) *)
(* callback : INT_PTR -> intptr_t *)
(* callbackData : void* in/out -> (ptr void) *)
(* foreign は cdecl 前提。x64 Windows では WINAPI と一致。構造体は ctypes structure を定義のこと。 *)(cffi:define-foreign-library gdiplus (t "gdiplus.dll"))
(cffi:use-foreign-library gdiplus)
(cffi:defcfun ("GdipDrawImagePointsRectI" gdip-draw-image-points-rect-i :convention :stdcall) :int32
(graphics :pointer) ; GpGraphics* in/out
(image :pointer) ; GpImage* in/out
(points :pointer) ; Point*
(count :int32) ; INT
(srcx :int32) ; INT
(srcy :int32) ; INT
(srcwidth :int32) ; INT
(srcheight :int32) ; INT
(src-unit :int32) ; Unit
(image-attributes :pointer) ; GpImageAttributes*
(callback :int64) ; INT_PTR
(callback-data :pointer)) ; void* in/out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。use Win32::API;
my $GdipDrawImagePointsRectI = Win32::API::More->new('gdiplus',
'int GdipDrawImagePointsRectI(LPVOID graphics, LPVOID image, LPVOID points, int count, int srcx, int srcy, int srcwidth, int srcheight, int srcUnit, LPVOID imageAttributes, LPARAM callback, LPVOID callbackData)');
# my $ret = $GdipDrawImagePointsRectI->Call($graphics, $image, $points, $count, $srcx, $srcy, $srcwidth, $srcheight, $srcUnit, $imageAttributes, $callback, $callbackData);
# graphics : GpGraphics* in/out -> LPVOID
# image : GpImage* in/out -> LPVOID
# points : Point* -> LPVOID
# count : INT -> int
# srcx : INT -> int
# srcy : INT -> int
# srcwidth : INT -> int
# srcheight : INT -> int
# srcUnit : Unit -> int
# imageAttributes : GpImageAttributes* -> LPVOID
# callback : INT_PTR -> LPARAM
# callbackData : void* in/out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。