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CreateEllipticRgnIndirect

関数

RECT構造体の指定に基づき楕円形のリージョンを作成する。

DLLGDI32.dll呼出規約winapi対応OSWindows 2000 以降

シグネチャ

// GDI32.dll
#include <windows.h>

HRGN CreateEllipticRgnIndirect(
    const RECT* lprect
);

パラメーター

名前	型	方向
lprect	RECT*	in

戻り値の型: HRGN

各言語での呼び出し定義

// GDI32.dll
#include <windows.h>

HRGN CreateEllipticRgnIndirect(
    const RECT* lprect
);

[DllImport("GDI32.dll", ExactSpelling = true)]
static extern IntPtr CreateEllipticRgnIndirect(
    IntPtr lprect   // RECT*
);

<DllImport("GDI32.dll", ExactSpelling:=True)>
Public Shared Function CreateEllipticRgnIndirect(
    lprect As IntPtr   ' RECT*
) As IntPtr
End Function

' lprect : RECT*
Declare PtrSafe Function CreateEllipticRgnIndirect Lib "gdi32" ( _
    ByVal lprect As LongPtr) As LongPtr
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

CreateEllipticRgnIndirect = ctypes.windll.gdi32.CreateEllipticRgnIndirect
CreateEllipticRgnIndirect.restype = ctypes.c_void_p
CreateEllipticRgnIndirect.argtypes = [
    ctypes.c_void_p,  # lprect : RECT*
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('GDI32.dll')
CreateEllipticRgnIndirect = Fiddle::Function.new(
  lib['CreateEllipticRgnIndirect'],
  [
    Fiddle::TYPE_VOIDP,  # lprect : RECT*
  ],
  Fiddle::TYPE_VOIDP)

#[link(name = "gdi32")]
extern "system" {
    fn CreateEllipticRgnIndirect(
        lprect: *const RECT  // RECT*
    ) -> *mut core::ffi::c_void;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("GDI32.dll")]
public static extern IntPtr CreateEllipticRgnIndirect(IntPtr lprect);
"@
$api = Add-Type -MemberDefinition $sig -Name 'GDI32_CreateEllipticRgnIndirect' -Namespace Win32 -PassThru
# $api::CreateEllipticRgnIndirect(lprect)

#uselib "GDI32.dll"
#func global CreateEllipticRgnIndirect "CreateEllipticRgnIndirect" sptr
; CreateEllipticRgnIndirect varptr(lprect)   ; 戻り値は stat
; lprect : RECT* -> "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 "GDI32.dll"
#cfunc global CreateEllipticRgnIndirect "CreateEllipticRgnIndirect" var
; res = CreateEllipticRgnIndirect(lprect)
; lprect : RECT* -> "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 "GDI32.dll"
#cfunc global CreateEllipticRgnIndirect "CreateEllipticRgnIndirect" sptr
; res = CreateEllipticRgnIndirect(varptr(lprect))
; lprect : RECT* -> "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:

; HRGN CreateEllipticRgnIndirect(RECT* lprect)
#uselib "GDI32.dll"
#cfunc global CreateEllipticRgnIndirect "CreateEllipticRgnIndirect" var
; res = CreateEllipticRgnIndirect(lprect)
; lprect : RECT* -> "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。; HRGN CreateEllipticRgnIndirect(RECT* lprect)
#uselib "GDI32.dll"
#cfunc global CreateEllipticRgnIndirect "CreateEllipticRgnIndirect" intptr
; res = CreateEllipticRgnIndirect(varptr(lprect))
; lprect : RECT* -> "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 (
	gdi32 = windows.NewLazySystemDLL("GDI32.dll")
	procCreateEllipticRgnIndirect = gdi32.NewProc("CreateEllipticRgnIndirect")
)

// lprect (RECT*)
r1, _, err := procCreateEllipticRgnIndirect.Call(
	uintptr(lprect),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRGN

function CreateEllipticRgnIndirect(
  lprect: Pointer   // RECT*
): THandle; stdcall;
  external 'GDI32.dll' name 'CreateEllipticRgnIndirect';

result := DllCall("GDI32\CreateEllipticRgnIndirect"
    , "Ptr", lprect   ; RECT*
    , "Ptr")   ; return: HRGN

●CreateEllipticRgnIndirect(lprect) = DLL("GDI32.dll", "void* CreateEllipticRgnIndirect(void*)")
# 呼び出し: CreateEllipticRgnIndirect(lprect)
# lprect : RECT* -> "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)。