GetWindowOrgEx

関数

DCのウィンドウの原点を取得する。

DLLGDI32.dll呼出規約winapi対応OSWindows 2000 以降

シグネチャ

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

BOOL GetWindowOrgEx(
    HDC hdc,
    POINT* lppoint
);

パラメーター

名前	型	方向
hdc	HDC	in
lppoint	POINT*	out

戻り値の型: BOOL

各言語での呼び出し定義

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

BOOL GetWindowOrgEx(
    HDC hdc,
    POINT* lppoint
);

[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("GDI32.dll", ExactSpelling = true)]
static extern bool GetWindowOrgEx(
    IntPtr hdc,   // HDC
    IntPtr lppoint   // POINT* out
);

<DllImport("GDI32.dll", ExactSpelling:=True)>
Public Shared Function GetWindowOrgEx(
    hdc As IntPtr,   ' HDC
    lppoint As IntPtr   ' POINT* out
) As Boolean
End Function

' hdc : HDC
' lppoint : POINT* out
Declare PtrSafe Function GetWindowOrgEx Lib "gdi32" ( _
    ByVal hdc As LongPtr, _
    ByVal lppoint 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

GetWindowOrgEx = ctypes.windll.gdi32.GetWindowOrgEx
GetWindowOrgEx.restype = wintypes.BOOL
GetWindowOrgEx.argtypes = [
    wintypes.HANDLE,  # hdc : HDC
    ctypes.c_void_p,  # lppoint : POINT* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('GDI32.dll')
GetWindowOrgEx = Fiddle::Function.new(
  lib['GetWindowOrgEx'],
  [
    Fiddle::TYPE_VOIDP,  # hdc : HDC
    Fiddle::TYPE_VOIDP,  # lppoint : POINT* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "gdi32")]
extern "system" {
    fn GetWindowOrgEx(
        hdc: *mut core::ffi::c_void,  // HDC
        lppoint: *mut POINT  // POINT* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("GDI32.dll")]
public static extern bool GetWindowOrgEx(IntPtr hdc, IntPtr lppoint);
"@
$api = Add-Type -MemberDefinition $sig -Name 'GDI32_GetWindowOrgEx' -Namespace Win32 -PassThru
# $api::GetWindowOrgEx(hdc, lppoint)

#uselib "GDI32.dll"
#func global GetWindowOrgEx "GetWindowOrgEx" sptr, sptr
; GetWindowOrgEx hdc, varptr(lppoint)   ; 戻り値は stat
; hdc : HDC -> "sptr"
; lppoint : POINT* 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 "GDI32.dll"
#cfunc global GetWindowOrgEx "GetWindowOrgEx" sptr, var
; res = GetWindowOrgEx(hdc, lppoint)
; hdc : HDC -> "sptr"
; lppoint : POINT* 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 "GDI32.dll"
#cfunc global GetWindowOrgEx "GetWindowOrgEx" sptr, sptr
; res = GetWindowOrgEx(hdc, varptr(lppoint))
; hdc : HDC -> "sptr"
; lppoint : POINT* 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:

; BOOL GetWindowOrgEx(HDC hdc, POINT* lppoint)
#uselib "GDI32.dll"
#cfunc global GetWindowOrgEx "GetWindowOrgEx" intptr, var
; res = GetWindowOrgEx(hdc, lppoint)
; hdc : HDC -> "intptr"
; lppoint : POINT* 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。; BOOL GetWindowOrgEx(HDC hdc, POINT* lppoint)
#uselib "GDI32.dll"
#cfunc global GetWindowOrgEx "GetWindowOrgEx" intptr, intptr
; res = GetWindowOrgEx(hdc, varptr(lppoint))
; hdc : HDC -> "intptr"
; lppoint : POINT* 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 (
	gdi32 = windows.NewLazySystemDLL("GDI32.dll")
	procGetWindowOrgEx = gdi32.NewProc("GetWindowOrgEx")
)

// hdc (HDC), lppoint (POINT* out)
r1, _, err := procGetWindowOrgEx.Call(
	uintptr(hdc),
	uintptr(lppoint),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function GetWindowOrgEx(
  hdc: THandle;   // HDC
  lppoint: Pointer   // POINT* out
): BOOL; stdcall;
  external 'GDI32.dll' name 'GetWindowOrgEx';

result := DllCall("GDI32\GetWindowOrgEx"
    , "Ptr", hdc   ; HDC
    , "Ptr", lppoint   ; POINT* out
    , "Int")   ; return: BOOL

●GetWindowOrgEx(hdc, lppoint) = DLL("GDI32.dll", "bool GetWindowOrgEx(void*, void*)")
# 呼び出し: GetWindowOrgEx(hdc, lppoint)
# hdc : HDC -> "void*"
# lppoint : POINT* 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)。