ホーム › Graphics.GdiPlus › GdipDisposeImage

GdipDisposeImage

関数

イメージオブジェクトを破棄してリソースを解放する。

DLLgdiplus.dll呼出規約winapi

シグネチャ

// gdiplus.dll
#include <windows.h>

Status GdipDisposeImage(
    GpImage* image
);

パラメーター

名前	型	方向
image	GpImage*	inout

戻り値の型: Status

各言語での呼び出し定義

// gdiplus.dll
#include <windows.h>

Status GdipDisposeImage(
    GpImage* image
);

[DllImport("gdiplus.dll", ExactSpelling = true)]
static extern int GdipDisposeImage(
    IntPtr image   // GpImage* in/out
);

<DllImport("gdiplus.dll", ExactSpelling:=True)>
Public Shared Function GdipDisposeImage(
    image As IntPtr   ' GpImage* in/out
) As Integer
End Function

' image : GpImage* in/out
Declare PtrSafe Function GdipDisposeImage Lib "gdiplus" ( _
    ByVal image 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

GdipDisposeImage = ctypes.windll.gdiplus.GdipDisposeImage
GdipDisposeImage.restype = ctypes.c_int
GdipDisposeImage.argtypes = [
    ctypes.c_void_p,  # image : GpImage* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('gdiplus.dll')
GdipDisposeImage = Fiddle::Function.new(
  lib['GdipDisposeImage'],
  [
    Fiddle::TYPE_VOIDP,  # image : GpImage* in/out
  ],
  Fiddle::TYPE_INT)

#[link(name = "gdiplus")]
extern "system" {
    fn GdipDisposeImage(
        image: *mut GpImage  // GpImage* in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("gdiplus.dll")]
public static extern int GdipDisposeImage(IntPtr image);
"@
$api = Add-Type -MemberDefinition $sig -Name 'gdiplus_GdipDisposeImage' -Namespace Win32 -PassThru
# $api::GdipDisposeImage(image)

#uselib "gdiplus.dll"
#func global GdipDisposeImage "GdipDisposeImage" sptr
; GdipDisposeImage varptr(image)   ; 戻り値は stat
; image : GpImage* 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 GdipDisposeImage "GdipDisposeImage" var
; res = GdipDisposeImage(image)
; image : GpImage* 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 GdipDisposeImage "GdipDisposeImage" sptr
; res = GdipDisposeImage(varptr(image))
; image : GpImage* 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 GdipDisposeImage(GpImage* image)
#uselib "gdiplus.dll"
#cfunc global GdipDisposeImage "GdipDisposeImage" var
; res = GdipDisposeImage(image)
; image : GpImage* 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 GdipDisposeImage(GpImage* image)
#uselib "gdiplus.dll"
#cfunc global GdipDisposeImage "GdipDisposeImage" intptr
; res = GdipDisposeImage(varptr(image))
; image : GpImage* 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")
	procGdipDisposeImage = gdiplus.NewProc("GdipDisposeImage")
)

// image (GpImage* in/out)
r1, _, err := procGdipDisposeImage.Call(
	uintptr(image),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // Status

function GdipDisposeImage(
  image: Pointer   // GpImage* in/out
): Integer; stdcall;
  external 'gdiplus.dll' name 'GdipDisposeImage';

result := DllCall("gdiplus\GdipDisposeImage"
    , "Ptr", image   ; GpImage* in/out
    , "Int")   ; return: Status

●GdipDisposeImage(image) = DLL("gdiplus.dll", "int GdipDisposeImage(void*)")
# 呼び出し: GdipDisposeImage(image)
# image : GpImage* 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)。