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GdipDrawImagePoints
関数3点で定義する平行四辺形に画像を描画する。
シグネチャ
// gdiplus.dll
#include <windows.h>
Status GdipDrawImagePoints(
GpGraphics* graphics,
GpImage* image,
const PointF* dstpoints,
INT count
);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。 |
| dstpoints | PointF* | in | 描画先の平行四辺形を定義する点配列(PointF)。左上・右上・左下の3点を指定する。 |
| count | INT | in | dstpoints配列内の点の個数。通常は3。 |
戻り値の型: Status
各言語での呼び出し定義
// gdiplus.dll
#include <windows.h>
Status GdipDrawImagePoints(
GpGraphics* graphics,
GpImage* image,
const PointF* dstpoints,
INT count
);[DllImport("gdiplus.dll", ExactSpelling = true)]
static extern int GdipDrawImagePoints(
IntPtr graphics, // GpGraphics* in/out
IntPtr image, // GpImage* in/out
IntPtr dstpoints, // PointF*
int count // INT
);<DllImport("gdiplus.dll", ExactSpelling:=True)>
Public Shared Function GdipDrawImagePoints(
graphics As IntPtr, ' GpGraphics* in/out
image As IntPtr, ' GpImage* in/out
dstpoints As IntPtr, ' PointF*
count As Integer ' INT
) As Integer
End Function' graphics : GpGraphics* in/out
' image : GpImage* in/out
' dstpoints : PointF*
' count : INT
Declare PtrSafe Function GdipDrawImagePoints Lib "gdiplus" ( _
ByVal graphics As LongPtr, _
ByVal image As LongPtr, _
ByVal dstpoints As LongPtr, _
ByVal count As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。import ctypes
from ctypes import wintypes
GdipDrawImagePoints = ctypes.windll.gdiplus.GdipDrawImagePoints
GdipDrawImagePoints.restype = ctypes.c_int
GdipDrawImagePoints.argtypes = [
ctypes.c_void_p, # graphics : GpGraphics* in/out
ctypes.c_void_p, # image : GpImage* in/out
ctypes.c_void_p, # dstpoints : PointF*
ctypes.c_int, # count : INT
]require 'fiddle'
require 'fiddle/import'
lib = Fiddle.dlopen('gdiplus.dll')
GdipDrawImagePoints = Fiddle::Function.new(
lib['GdipDrawImagePoints'],
[
Fiddle::TYPE_VOIDP, # graphics : GpGraphics* in/out
Fiddle::TYPE_VOIDP, # image : GpImage* in/out
Fiddle::TYPE_VOIDP, # dstpoints : PointF*
Fiddle::TYPE_INT, # count : INT
],
Fiddle::TYPE_INT)#[link(name = "gdiplus")]
extern "system" {
fn GdipDrawImagePoints(
graphics: *mut GpGraphics, // GpGraphics* in/out
image: *mut GpImage, // GpImage* in/out
dstpoints: *const PointF, // PointF*
count: i32 // INT
) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.$sig = @"
[DllImport("gdiplus.dll")]
public static extern int GdipDrawImagePoints(IntPtr graphics, IntPtr image, IntPtr dstpoints, int count);
"@
$api = Add-Type -MemberDefinition $sig -Name 'gdiplus_GdipDrawImagePoints' -Namespace Win32 -PassThru
# $api::GdipDrawImagePoints(graphics, image, dstpoints, count)#uselib "gdiplus.dll"
#func global GdipDrawImagePoints "GdipDrawImagePoints" sptr, sptr, sptr, sptr
; GdipDrawImagePoints varptr(graphics), varptr(image), varptr(dstpoints), count ; 戻り値は stat
; graphics : GpGraphics* in/out -> "sptr"
; image : GpImage* in/out -> "sptr"
; dstpoints : PointF* -> "sptr"
; count : INT -> "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 GdipDrawImagePoints "GdipDrawImagePoints" var, var, var, int ; res = GdipDrawImagePoints(graphics, image, dstpoints, count) ; graphics : GpGraphics* in/out -> "var" ; image : GpImage* in/out -> "var" ; dstpoints : PointF* -> "var" ; count : INT -> "int" ; ※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 GdipDrawImagePoints "GdipDrawImagePoints" sptr, sptr, sptr, int ; res = GdipDrawImagePoints(varptr(graphics), varptr(image), varptr(dstpoints), count) ; graphics : GpGraphics* in/out -> "sptr" ; image : GpImage* in/out -> "sptr" ; dstpoints : PointF* -> "sptr" ; count : INT -> "int" ; ※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 GdipDrawImagePoints(GpGraphics* graphics, GpImage* image, PointF* dstpoints, INT count) #uselib "gdiplus.dll" #cfunc global GdipDrawImagePoints "GdipDrawImagePoints" var, var, var, int ; res = GdipDrawImagePoints(graphics, image, dstpoints, count) ; graphics : GpGraphics* in/out -> "var" ; image : GpImage* in/out -> "var" ; dstpoints : PointF* -> "var" ; count : INT -> "int" ; ※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 GdipDrawImagePoints(GpGraphics* graphics, GpImage* image, PointF* dstpoints, INT count) #uselib "gdiplus.dll" #cfunc global GdipDrawImagePoints "GdipDrawImagePoints" intptr, intptr, intptr, int ; res = GdipDrawImagePoints(varptr(graphics), varptr(image), varptr(dstpoints), count) ; graphics : GpGraphics* in/out -> "intptr" ; image : GpImage* in/out -> "intptr" ; dstpoints : PointF* -> "intptr" ; count : INT -> "int" ; ※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")
procGdipDrawImagePoints = gdiplus.NewProc("GdipDrawImagePoints")
)
// graphics (GpGraphics* in/out), image (GpImage* in/out), dstpoints (PointF*), count (INT)
r1, _, err := procGdipDrawImagePoints.Call(
uintptr(graphics),
uintptr(image),
uintptr(dstpoints),
uintptr(count),
)
_ = err // syscall.Errno (valid when the call sets last-error)
_ = r1 // Statusfunction GdipDrawImagePoints(
graphics: Pointer; // GpGraphics* in/out
image: Pointer; // GpImage* in/out
dstpoints: Pointer; // PointF*
count: Integer // INT
): Integer; stdcall;
external 'gdiplus.dll' name 'GdipDrawImagePoints';result := DllCall("gdiplus\GdipDrawImagePoints"
, "Ptr", graphics ; GpGraphics* in/out
, "Ptr", image ; GpImage* in/out
, "Ptr", dstpoints ; PointF*
, "Int", count ; INT
, "Int") ; return: Status●GdipDrawImagePoints(graphics, image, dstpoints, count) = DLL("gdiplus.dll", "int GdipDrawImagePoints(void*, void*, void*, int)")
# 呼び出し: GdipDrawImagePoints(graphics, image, dstpoints, count)
# graphics : GpGraphics* in/out -> "void*"
# image : GpImage* in/out -> "void*"
# dstpoints : PointF* -> "void*"
# count : INT -> "int"
# 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 GdipDrawImagePoints(
graphics: [*c]GpGraphics, // GpGraphics* in/out
image: [*c]GpImage, // GpImage* in/out
dstpoints: [*c]PointF, // PointF*
count: i32 // INT
) callconv(std.os.windows.WINAPI) i32;proc GdipDrawImagePoints(
graphics: ptr GpGraphics, # GpGraphics* in/out
image: ptr GpImage, # GpImage* in/out
dstpoints: ptr PointF, # PointF*
count: int32 # INT
): int32 {.importc: "GdipDrawImagePoints", stdcall, dynlib: "gdiplus.dll".}pragma(lib, "gdiplus");
extern(Windows)
int GdipDrawImagePoints(
GpGraphics* graphics, // GpGraphics* in/out
GpImage* image, // GpImage* in/out
PointF* dstpoints, // PointF*
int count // INT
);ccall((:GdipDrawImagePoints, "gdiplus.dll"), stdcall, Int32,
(Ptr{GpGraphics}, Ptr{GpImage}, Ptr{PointF}, Int32),
graphics, image, dstpoints, count)
# graphics : GpGraphics* in/out -> Ptr{GpGraphics}
# image : GpImage* in/out -> Ptr{GpImage}
# dstpoints : PointF* -> Ptr{PointF}
# count : INT -> Int32
# stdcall は 32bit のみ意味を持つ(x64 では無視)。local ffi = require("ffi")
ffi.cdef[[
int32_t GdipDrawImagePoints(
void* graphics,
void* image,
void* dstpoints,
int32_t count);
]]
local gdiplus = ffi.load("gdiplus")
-- gdiplus.GdipDrawImagePoints(graphics, image, dstpoints, count)
-- graphics : GpGraphics* in/out
-- image : GpImage* in/out
-- dstpoints : PointF*
-- count : INT
-- 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 GdipDrawImagePoints = lib.func('__stdcall', 'GdipDrawImagePoints', 'int32_t', ['void *', 'void *', 'void *', 'int32_t']);
// GdipDrawImagePoints(graphics, image, dstpoints, count)
// graphics : GpGraphics* in/out -> 'void *'
// image : GpImage* in/out -> 'void *'
// dstpoints : PointF* -> 'void *'
// count : INT -> 'int32_t'
// 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", {
GdipDrawImagePoints: { parameters: ["pointer", "pointer", "pointer", "i32"], result: "i32" },
});
// lib.symbols.GdipDrawImagePoints(graphics, image, dstpoints, count)
// graphics : GpGraphics* in/out -> "pointer"
// image : GpImage* in/out -> "pointer"
// dstpoints : PointF* -> "pointer"
// count : INT -> "i32"
// 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 GdipDrawImagePoints(
void* graphics,
void* image,
void* dstpoints,
int32_t count);
C, "gdiplus.dll");
// $ffi->GdipDrawImagePoints(graphics, image, dstpoints, count);
// graphics : GpGraphics* in/out
// image : GpImage* in/out
// dstpoints : PointF*
// count : INT
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;
public interface Gdiplus extends StdCallLibrary {
Gdiplus INSTANCE = Native.load("gdiplus", Gdiplus.class);
int GdipDrawImagePoints(
Pointer graphics, // GpGraphics* in/out
Pointer image, // GpImage* in/out
Pointer dstpoints, // PointF*
int count // INT
);
}@[Link("gdiplus")]
lib Libgdiplus
fun GdipDrawImagePoints = GdipDrawImagePoints(
graphics : GpGraphics*, # GpGraphics* in/out
image : GpImage*, # GpImage* in/out
dstpoints : PointF*, # PointF*
count : Int32 # INT
) : Int32
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。import 'dart:ffi';
import 'package:ffi/ffi.dart';
typedef GdipDrawImagePointsNative = Int32 Function(Pointer<Void>, Pointer<Void>, Pointer<Void>, Int32);
typedef GdipDrawImagePointsDart = int Function(Pointer<Void>, Pointer<Void>, Pointer<Void>, int);
final GdipDrawImagePoints = DynamicLibrary.open('gdiplus.dll')
.lookupFunction<GdipDrawImagePointsNative, GdipDrawImagePointsDart>('GdipDrawImagePoints');
// graphics : GpGraphics* in/out -> Pointer<Void>
// image : GpImage* in/out -> Pointer<Void>
// dstpoints : PointF* -> Pointer<Void>
// count : INT -> Int32
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。{$mode objfpc}{$H+}
function GdipDrawImagePoints(
graphics: Pointer; // GpGraphics* in/out
image: Pointer; // GpImage* in/out
dstpoints: Pointer; // PointF*
count: Integer // INT
): Integer; stdcall;
external 'gdiplus.dll' name 'GdipDrawImagePoints';import Foreign
import Foreign.C.Types
import Foreign.C.String
foreign import stdcall safe "GdipDrawImagePoints"
c_GdipDrawImagePoints :: Ptr () -> Ptr () -> Ptr () -> Int32 -> IO Int32
-- graphics : GpGraphics* in/out -> Ptr ()
-- image : GpImage* in/out -> Ptr ()
-- dstpoints : PointF* -> Ptr ()
-- count : INT -> Int32
-- 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 gdipdrawimagepoints =
foreign "GdipDrawImagePoints"
((ptr void) @-> (ptr void) @-> (ptr void) @-> int32_t @-> returning int32_t)
(* graphics : GpGraphics* in/out -> (ptr void) *)
(* image : GpImage* in/out -> (ptr void) *)
(* dstpoints : PointF* -> (ptr void) *)
(* count : INT -> int32_t *)
(* 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 ("GdipDrawImagePoints" gdip-draw-image-points :convention :stdcall) :int32
(graphics :pointer) ; GpGraphics* in/out
(image :pointer) ; GpImage* in/out
(dstpoints :pointer) ; PointF*
(count :int32)) ; INT
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。use Win32::API;
my $GdipDrawImagePoints = Win32::API::More->new('gdiplus',
'int GdipDrawImagePoints(LPVOID graphics, LPVOID image, LPVOID dstpoints, int count)');
# my $ret = $GdipDrawImagePoints->Call($graphics, $image, $dstpoints, $count);
# graphics : GpGraphics* in/out -> LPVOID
# image : GpImage* in/out -> LPVOID
# dstpoints : PointF* -> LPVOID
# count : INT -> int
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。