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GdipGetImageHeight
関数イメージの高さをピクセル数で取得する。
シグネチャ
// gdiplus.dll
#include <windows.h>
Status GdipGetImageHeight(
GpImage* image,
DWORD* height
);パラメーター
| 名前 | 型 | 方向 | 説明 |
|---|---|---|---|
| image | GpImage* | inout | 対象の画像オブジェクトへのポインタ。 |
| height | DWORD* | inout | 画像の高さをピクセル単位で受け取るDWORDポインタ。 |
戻り値の型: Status
各言語での呼び出し定義
// gdiplus.dll
#include <windows.h>
Status GdipGetImageHeight(
GpImage* image,
DWORD* height
);[DllImport("gdiplus.dll", ExactSpelling = true)]
static extern int GdipGetImageHeight(
IntPtr image, // GpImage* in/out
ref uint height // DWORD* in/out
);<DllImport("gdiplus.dll", ExactSpelling:=True)>
Public Shared Function GdipGetImageHeight(
image As IntPtr, ' GpImage* in/out
ByRef height As UInteger ' DWORD* in/out
) As Integer
End Function' image : GpImage* in/out
' height : DWORD* in/out
Declare PtrSafe Function GdipGetImageHeight Lib "gdiplus" ( _
ByVal image As LongPtr, _
ByRef height 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
GdipGetImageHeight = ctypes.windll.gdiplus.GdipGetImageHeight
GdipGetImageHeight.restype = ctypes.c_int
GdipGetImageHeight.argtypes = [
ctypes.c_void_p, # image : GpImage* in/out
ctypes.POINTER(wintypes.DWORD), # height : DWORD* in/out
]require 'fiddle'
require 'fiddle/import'
lib = Fiddle.dlopen('gdiplus.dll')
GdipGetImageHeight = Fiddle::Function.new(
lib['GdipGetImageHeight'],
[
Fiddle::TYPE_VOIDP, # image : GpImage* in/out
Fiddle::TYPE_VOIDP, # height : DWORD* in/out
],
Fiddle::TYPE_INT)#[link(name = "gdiplus")]
extern "system" {
fn GdipGetImageHeight(
image: *mut GpImage, // GpImage* in/out
height: *mut u32 // DWORD* in/out
) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.$sig = @"
[DllImport("gdiplus.dll")]
public static extern int GdipGetImageHeight(IntPtr image, ref uint height);
"@
$api = Add-Type -MemberDefinition $sig -Name 'gdiplus_GdipGetImageHeight' -Namespace Win32 -PassThru
# $api::GdipGetImageHeight(image, height)#uselib "gdiplus.dll"
#func global GdipGetImageHeight "GdipGetImageHeight" sptr, sptr
; GdipGetImageHeight varptr(image), varptr(height) ; 戻り値は stat
; image : GpImage* in/out -> "sptr"
; height : DWORD* 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 GdipGetImageHeight "GdipGetImageHeight" var, var ; res = GdipGetImageHeight(image, height) ; image : GpImage* in/out -> "var" ; height : DWORD* in/out -> "var" ; ※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 GdipGetImageHeight "GdipGetImageHeight" sptr, sptr ; res = GdipGetImageHeight(varptr(image), varptr(height)) ; image : GpImage* in/out -> "sptr" ; height : DWORD* 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 GdipGetImageHeight(GpImage* image, DWORD* height) #uselib "gdiplus.dll" #cfunc global GdipGetImageHeight "GdipGetImageHeight" var, var ; res = GdipGetImageHeight(image, height) ; image : GpImage* in/out -> "var" ; height : DWORD* in/out -> "var" ; ※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 GdipGetImageHeight(GpImage* image, DWORD* height) #uselib "gdiplus.dll" #cfunc global GdipGetImageHeight "GdipGetImageHeight" intptr, intptr ; res = GdipGetImageHeight(varptr(image), varptr(height)) ; image : GpImage* in/out -> "intptr" ; height : DWORD* 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")
procGdipGetImageHeight = gdiplus.NewProc("GdipGetImageHeight")
)
// image (GpImage* in/out), height (DWORD* in/out)
r1, _, err := procGdipGetImageHeight.Call(
uintptr(image),
uintptr(height),
)
_ = err // syscall.Errno (valid when the call sets last-error)
_ = r1 // Statusfunction GdipGetImageHeight(
image: Pointer; // GpImage* in/out
height: Pointer // DWORD* in/out
): Integer; stdcall;
external 'gdiplus.dll' name 'GdipGetImageHeight';result := DllCall("gdiplus\GdipGetImageHeight"
, "Ptr", image ; GpImage* in/out
, "Ptr", height ; DWORD* in/out
, "Int") ; return: Status●GdipGetImageHeight(image, height) = DLL("gdiplus.dll", "int GdipGetImageHeight(void*, void*)")
# 呼び出し: GdipGetImageHeight(image, height)
# image : GpImage* in/out -> "void*"
# height : DWORD* 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 GdipGetImageHeight(
image: [*c]GpImage, // GpImage* in/out
height: [*c]u32 // DWORD* in/out
) callconv(std.os.windows.WINAPI) i32;proc GdipGetImageHeight(
image: ptr GpImage, # GpImage* in/out
height: ptr uint32 # DWORD* in/out
): int32 {.importc: "GdipGetImageHeight", stdcall, dynlib: "gdiplus.dll".}pragma(lib, "gdiplus");
extern(Windows)
int GdipGetImageHeight(
GpImage* image, // GpImage* in/out
uint* height // DWORD* in/out
);ccall((:GdipGetImageHeight, "gdiplus.dll"), stdcall, Int32,
(Ptr{GpImage}, Ptr{UInt32}),
image, height)
# image : GpImage* in/out -> Ptr{GpImage}
# height : DWORD* in/out -> Ptr{UInt32}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。local ffi = require("ffi")
ffi.cdef[[
int32_t GdipGetImageHeight(
void* image,
uint32_t* height);
]]
local gdiplus = ffi.load("gdiplus")
-- gdiplus.GdipGetImageHeight(image, height)
-- image : GpImage* in/out
-- height : DWORD* 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 GdipGetImageHeight = lib.func('__stdcall', 'GdipGetImageHeight', 'int32_t', ['void *', 'uint32_t *']);
// GdipGetImageHeight(image, height)
// image : GpImage* in/out -> 'void *'
// height : DWORD* in/out -> 'uint32_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", {
GdipGetImageHeight: { parameters: ["pointer", "pointer"], result: "i32" },
});
// lib.symbols.GdipGetImageHeight(image, height)
// image : GpImage* in/out -> "pointer"
// height : DWORD* 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 GdipGetImageHeight(
void* image,
uint32_t* height);
C, "gdiplus.dll");
// $ffi->GdipGetImageHeight(image, height);
// image : GpImage* in/out
// height : DWORD* in/out
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;
public interface Gdiplus extends StdCallLibrary {
Gdiplus INSTANCE = Native.load("gdiplus", Gdiplus.class);
int GdipGetImageHeight(
Pointer image, // GpImage* in/out
IntByReference height // DWORD* in/out
);
}@[Link("gdiplus")]
lib Libgdiplus
fun GdipGetImageHeight = GdipGetImageHeight(
image : GpImage*, # GpImage* in/out
height : UInt32* # DWORD* in/out
) : Int32
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。import 'dart:ffi';
import 'package:ffi/ffi.dart';
typedef GdipGetImageHeightNative = Int32 Function(Pointer<Void>, Pointer<Uint32>);
typedef GdipGetImageHeightDart = int Function(Pointer<Void>, Pointer<Uint32>);
final GdipGetImageHeight = DynamicLibrary.open('gdiplus.dll')
.lookupFunction<GdipGetImageHeightNative, GdipGetImageHeightDart>('GdipGetImageHeight');
// image : GpImage* in/out -> Pointer<Void>
// height : DWORD* in/out -> Pointer<Uint32>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。{$mode objfpc}{$H+}
function GdipGetImageHeight(
image: Pointer; // GpImage* in/out
height: Pointer // DWORD* in/out
): Integer; stdcall;
external 'gdiplus.dll' name 'GdipGetImageHeight';import Foreign
import Foreign.C.Types
import Foreign.C.String
foreign import stdcall safe "GdipGetImageHeight"
c_GdipGetImageHeight :: Ptr () -> Ptr Word32 -> IO Int32
-- image : GpImage* in/out -> Ptr ()
-- height : DWORD* in/out -> Ptr Word32
-- 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 gdipgetimageheight =
foreign "GdipGetImageHeight"
((ptr void) @-> (ptr uint32_t) @-> returning int32_t)
(* image : GpImage* in/out -> (ptr void) *)
(* height : DWORD* in/out -> (ptr uint32_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 ("GdipGetImageHeight" gdip-get-image-height :convention :stdcall) :int32
(image :pointer) ; GpImage* in/out
(height :pointer)) ; DWORD* in/out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。use Win32::API;
my $GdipGetImageHeight = Win32::API::More->new('gdiplus',
'int GdipGetImageHeight(LPVOID image, LPVOID height)');
# my $ret = $GdipGetImageHeight->Call($image, $height);
# image : GpImage* in/out -> LPVOID
# height : DWORD* 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。