Win32 API 日本語リファレンス
ホームGraphics.Gdi › GetWindowRgnBox

GetWindowRgnBox

関数
ウィンドウリージョンの外接矩形を取得する。
DLLUSER32.dll呼出規約winapi対応OSWindows 2000 以降

シグネチャ

// USER32.dll
#include <windows.h>

GDI_REGION_TYPE GetWindowRgnBox(
    HWND hWnd,
    RECT* lprc
);

パラメーター

名前方向
hWndHWNDin
lprcRECT*out

戻り値の型: GDI_REGION_TYPE

各言語での呼び出し定義

// USER32.dll
#include <windows.h>

GDI_REGION_TYPE GetWindowRgnBox(
    HWND hWnd,
    RECT* lprc
);
[DllImport("USER32.dll", ExactSpelling = true)]
static extern int GetWindowRgnBox(
    IntPtr hWnd,   // HWND
    IntPtr lprc   // RECT* out
);
<DllImport("USER32.dll", ExactSpelling:=True)>
Public Shared Function GetWindowRgnBox(
    hWnd As IntPtr,   ' HWND
    lprc As IntPtr   ' RECT* out
) As Integer
End Function
' hWnd : HWND
' lprc : RECT* out
Declare PtrSafe Function GetWindowRgnBox Lib "user32" ( _
    ByVal hWnd As LongPtr, _
    ByVal lprc 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

GetWindowRgnBox = ctypes.windll.user32.GetWindowRgnBox
GetWindowRgnBox.restype = ctypes.c_int
GetWindowRgnBox.argtypes = [
    wintypes.HANDLE,  # hWnd : HWND
    ctypes.c_void_p,  # lprc : RECT* out
]
require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('USER32.dll')
GetWindowRgnBox = Fiddle::Function.new(
  lib['GetWindowRgnBox'],
  [
    Fiddle::TYPE_VOIDP,  # hWnd : HWND
    Fiddle::TYPE_VOIDP,  # lprc : RECT* out
  ],
  Fiddle::TYPE_INT)
#[link(name = "user32")]
extern "system" {
    fn GetWindowRgnBox(
        hWnd: *mut core::ffi::c_void,  // HWND
        lprc: *mut RECT  // RECT* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.
$sig = @"
[DllImport("USER32.dll")]
public static extern int GetWindowRgnBox(IntPtr hWnd, IntPtr lprc);
"@
$api = Add-Type -MemberDefinition $sig -Name 'USER32_GetWindowRgnBox' -Namespace Win32 -PassThru
# $api::GetWindowRgnBox(hWnd, lprc)
#uselib "USER32.dll"
#func global GetWindowRgnBox "GetWindowRgnBox" sptr, sptr
; GetWindowRgnBox hWnd, varptr(lprc)   ; 戻り値は stat
; hWnd : HWND -> "sptr"
; lprc : RECT* 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 "USER32.dll"
#cfunc global GetWindowRgnBox "GetWindowRgnBox" sptr, var
; res = GetWindowRgnBox(hWnd, lprc)
; hWnd : HWND -> "sptr"
; lprc : RECT* 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。
出力引数:
; GDI_REGION_TYPE GetWindowRgnBox(HWND hWnd, RECT* lprc)
#uselib "USER32.dll"
#cfunc global GetWindowRgnBox "GetWindowRgnBox" intptr, var
; res = GetWindowRgnBox(hWnd, lprc)
; hWnd : HWND -> "intptr"
; lprc : RECT* 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。
import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	user32 = windows.NewLazySystemDLL("USER32.dll")
	procGetWindowRgnBox = user32.NewProc("GetWindowRgnBox")
)

// hWnd (HWND), lprc (RECT* out)
r1, _, err := procGetWindowRgnBox.Call(
	uintptr(hWnd),
	uintptr(lprc),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // GDI_REGION_TYPE
function GetWindowRgnBox(
  hWnd: THandle;   // HWND
  lprc: Pointer   // RECT* out
): Integer; stdcall;
  external 'USER32.dll' name 'GetWindowRgnBox';
result := DllCall("USER32\GetWindowRgnBox"
    , "Ptr", hWnd   ; HWND
    , "Ptr", lprc   ; RECT* out
    , "Int")   ; return: GDI_REGION_TYPE
●GetWindowRgnBox(hWnd, lprc) = DLL("USER32.dll", "int GetWindowRgnBox(void*, void*)")
# 呼び出し: GetWindowRgnBox(hWnd, lprc)
# hWnd : HWND -> "void*"
# lprc : RECT* 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)。