AI & ChatGPT searches , social queriess for WINDOW CLASS
Search references for WINDOW CLASS. Phrases containing WINDOW CLASS
See searches and references containing WINDOW CLASS!
Search references for WINDOW CLASS. Phrases containing WINDOW CLASS
See searches and references containing WINDOW CLASS!WINDOW CLASS
In computer programming, a window class is a fundamental in many windowing systems, including the Microsoft Windows (Win16, Win32, and Win64) operating
Window_class
Opening to admit light, air, or objects
windows, oriel windows, thermal, or Diocletian, windows, picture windows, rose windows, emergency exit windows, stained glass windows, French windows
Window
Computer operating system
computing industry – Windows for personal computers, Windows Server for servers, and Windows IoT for embedded systems. Windows itself is further grouped
Microsoft_Windows
Design pattern in object-oriented programming
convenient to modify the base class. In the previous example, the SimpleWindow and WindowDecorator classes implement the Window interface, which defines the
Decorator_pattern
when an application registers its window class and can be named anything (not necessarily WindowProc). The window procedure is responsible for handling
WindowProc
Function used in signal processing
In signal processing and statistics, a window function (also known as an apodization function or tapering function) is a mathematical function that is
Window_function
Simple text editor included with Microsoft Windows
the EDIT window class, with a different limit in each version of Windows. Because of this limitation, on Windows 3.0, Windows 3.1, and Windows 3.11, Notepad
Windows_Notepad
2009 Microsoft operating system version
Windows 7 is a major release of the Windows NT operating system developed by Microsoft. It was released to manufacturing on July 22, 2009, and became
Windows_7
the window class when it was registered.) (More than one window can use the same window procedure.) Code can also send messages directly to a window procedure
Message loop in Microsoft Windows
Message_loop_in_Microsoft_Windows
American actress
The Sign in Sidney Brustein's Window. She also acted in off-Broadway productions of The Rose Tattoo (2016) and Our Class (2024). Birney is the daughter
Gus_Birney
Waiting cursor used on Windows
applications and windows. By default, when the mouse cursor is in a window, the cursor shown is controlled by the window's registered window class and handling
Windows_wait_cursor
Open source UI framework
</StackPanel> </Window> MainWindow.xaml.cs: using System.Windows; namespace WpfExample { public partial class MainWindow : Window { public MainWindow() { InitializeComponent();
Windows Presentation Foundation
Windows_Presentation_Foundation
editions of Windows 10 available to device manufacturers for use on specific classes of devices, including IoT devices, and previously marketed Windows 10 Mobile
Windows_10_editions
Graphical user interface software library
Windows Forms, also known as WinForms, is a free, open-source graphical user interface (GUI) class library for building Windows desktop applications,
Windows_Forms
Film installed on glass surfaces
A window film, sometimes called window tint, is a thin laminate film that can be installed on the interior or exterior of glass surfaces in automobiles
Window_film
Object-oriented programming language
instance of class Window, stores it in a variable, and then sends two messages to it. | window | window := Window new. window label: 'Hello'. window open If
Smalltalk
Design pattern in object-oriented programming
} // The ClosedShape implementation of Window delegates to that of the Rectangle that is bounds class Window(private val bounds: Rectangle) : ClosedShape
Delegation_pattern
Examining a shop's stock without intent to purchase
prices. The development of window shopping, as a form of recreation, is strongly associated with the rise of the middle classes in 17th and 18th century
Window_shopping
Criminological theory
In criminology, the broken windows theory states that visible signs of crime, antisocial behavior and civil disorder create an urban environment that
Broken_windows_theory
Microsoft Windows was announced by Bill Gates on November 10, 1983, 2 years before it was first released. Microsoft introduced Windows as a graphical user
Microsoft Windows version history
Microsoft_Windows_version_history
Type of system software
A window manager is system software that controls the placement and appearance of windows within a windowing system in a graphical user interface. Most
Window_manager
Widget toolkit for AmigaOS
of ClassAct, which is an object-oriented system of classes that enhanced the aspect of the Workbench 2.0 GUI of AmigaOS. The native Amiga windowing system
ReAction_GUI
Class of diesel electric locomotives
beneath the right side cab window. This forced a move for any nameplates to below the driver's side cab window. The Class 59/2s were later allocated to
British_Rail_Class_59
Active GUI component receiving input
November 2009. Retrieved 16 January 2016. α Per window or window class, with additional support for "never focus" — windows that should never receive focus.
Focus_(computing)
Strategic timeline concept for China's potential military action against Taiwan
The Davidson window is a strategic concept referring to the timeframe between 2021 and 2027 during which military analysts believe China will develop sufficient
Davidson_window
2006 Microsoft operating system version
Windows Vista is a major release of the Windows NT operating system developed by Microsoft. It was the direct successor to Windows XP, released five years
Windows_Vista
Multi-paradigm programming language
position:; end class; In this example, the class "<window>" is defined. The <class name> syntax is convention only, to make the class names stand out—the
Dylan_(programming_language)
1998 Microsoft operating system version
Windows 98 is a consumer-oriented operating system developed by Microsoft as part of its Windows 9x line of Microsoft Windows, a family of operating systems
Windows_98
2015 Microsoft operating system version
Windows 10 is a major release of the Windows NT operating system developed by Microsoft. The successor to Windows 8.1, it was released to manufacturing
Windows_10
System monitor for the X Window System
out_to_stderr = false, extra_newline = false, own_window = true, own_window_class = 'Conky', own_window_type = 'desktop', stippled_borders = 0, update_interval
Conky_(software)
2012 Microsoft operating system version
Windows 8 is a major release of the Windows NT operating system developed by Microsoft. It was released to manufacturing on August 1, 2012, made available
Windows_8
Motor vehicle
Aerodyne II sleeper. While also distinguished by twin rooftop windows (shifting to curved window class), the Aerodyne II sleeper was more aerodynamic. The T600A
Kenworth_T600
Series of Sport Utility Vehicles (SUVs)
The Mercedes-Benz G-Class, colloquially known as the G-Wagon or G-Wagen (as an abbreviation of Geländewagen), is a four-wheel drive luxury SUV sold by
Mercedes-Benz_G-Class
Microsoft Windows file manager application
"Windows Explorer" to "File Explorer" in Windows 8; however, the old name of "Windows Explorer" can still be seen in the Windows Task Manager. Windows
File_Explorer
application sends the message to the associated window's handling procedure using DispatchMessage. When a window class is created, its associated message handling
Microwindows
Topics referred to by the same term
Window Cleaner or variation may refer to: Window cleaner or window washer, a person who cleans windows Cleaning agent, a class of product used to clean
Window_Cleaner
Species of fish
The northern spearnose poacher (Agonopsis vulsa), also known as the window-tailed sea-poacher or the windowtail poacher, is a fish in the family Agonidae
Northern_spearnose_poacher
1999 Microsoft operating system version
Windows 2000 is a major release of the Windows NT operating system developed by Microsoft, targeting the server and business markets. It is the direct
Windows_2000
Development framework built on Chromium
renderer processes by instantiating an instance of the BrowserWindow class, which loads a window that appears on the screen to render HTML, CSS, etc.[citation
Electron_(software_framework)
X protocol C language binding library
XCB_EVENT_MASK_KEY_PRESS; xcb_create_window(connection, screen->root_depth, window, screen->root, 10, 10, 100, 100, 1, XCB_WINDOW_CLASS_INPUT_OUTPUT, screen->root_visual
XCB
Fourth generation of Mercedes-Benz E-Class
sound, power rear window sunshade, heated front seats, active ventilated front seats and garage-door opener and KEYLESS-GO. The E-Class benefited from new
Mercedes-Benz_E-Class_(W212)
Horizontal structural piece separating a door from a window above it
separating a door from a window above it. (This contrasts with a mullion, a vertical structural member.) Transom or transom window is also the customary
Transom_(architecture)
United Kingdom legislation
involving dormer windows. Class C covers other alterations to roofs such as re-roofing or the installation of roof lights/windows. Class D covers the erection
General Permitted Development Order
General_Permitted_Development_Order
Social class
social class of business owners, merchants and wealthy people, in general, which emerged in the Late Middle Ages, originally as a "middle class" between
Bourgeoisie
2000 Microsoft operating system version
Windows Me (Millennium Edition), often capitalized as Windows ME, is an operating system developed by Microsoft as part of its Windows 9x line of Microsoft
Windows_Me
Discontinued embedded operating system by Microsoft
Windows CE, later known as Windows Embedded CE and Windows Embedded Compact, is a discontinued operating system developed by Microsoft for mobile and embedded
Windows_CE
Car body style
The three-window coupe (commonly just "three-window") is a style of automobile characterized by two side windows and a backlight (rear window). The front
Coupe
1974 British film by Val Guest
Confessions of a Window Cleaner is a 1974 British sex comedy film, directed by Val Guest. Like the other films in the Confessions series; Confessions of
Confessions of a Window Cleaner
Confessions_of_a_Window_Cleaner
Basic word processor formerly included with Microsoft Windows
designed by Microsoft that was included in versions of Windows from Windows 95 through Windows 11, version 23H2. Similarly to its predecessor Microsoft
WordPad
Second generation of Mercedes-Benz E-Class
The Mercedes-Benz E-Class (W210) is the second generation of the Mercedes-Benz E-Class, produced by Mercedes-Benz and marketed in saloon and estate body
Mercedes-Benz_E-Class_(W210)
Species of fly
Sylvicola fenestralis, the window gnat, is a medium gnat (6–10 mm) of the family Anisopodidae. It is found in the Palearctic. Fauna Europaea Bei-Bienko
Sylvicola_fenestralis
Full-sized luxury car
The Mercedes-Benz S-Class, formerly known as "special class" (German: "Sonderklasse", abbreviated as "S-Klasse"), is a series of full-sized luxury sedans
Mercedes-Benz_S-Class
Version of Windows Server, released in 2003
Windows Server 2003, codenamed "Whistler Server", is the sixth major version of the Windows NT operating system produced by Microsoft and the first server
Windows_Server_2003
Class of diesel train
box was fitted above the front cab windows, with the destination indicator on top of a reduced height centre window. The first cars built, part of an order
British_Rail_Class_111
Java-based GUI toolkit
The Abstract Window Toolkit (AWT) is Java's original platform-dependent windowing, graphics, and user-interface widget toolkit, preceding Swing. The AWT
Abstract_Window_Toolkit
Type of window manager
provides applications with an off-screen buffer for each window, then composites these window buffers into an image representing the screen and writes
Compositing_manager
Windows service
Multimedia Class Scheduler Service (MMCSS) is a Windows service that allows multimedia applications to get prioritized access to CPU for time-sensitive
Multimedia Class Scheduler Service
Multimedia_Class_Scheduler_Service
Light, fast, stealth missile corvettes of the Royal Norwegian Navy
Skjold-class corvettes (skjold means "shield" in Norwegian) are a class of six light, superfast, stealth missile corvettes in service with the Royal Norwegian
Skjold-class_corvette
Series of Microsoft operating systems
Windows 9x (also known as Win9x) is a generic term referring to a former line of Windows, a family of operating systems produced by Microsoft. It had releases
Windows_9x
Java-based GUI toolkit
the public classes and interfaces from the javax.swing package. The Hello class extends the JFrame class; the JFrame class implements a window with a title
Swing_(Java)
Second generation of Microsoft's Windows Phone mobile operating system
Windows Phone 8 is the second generation of the Windows Phone mobile operating system from Microsoft, released on October 29, 2012. It runs on the Windows
Windows_Phone_8
Python binding to the Tk GUI toolkit
the Application class. line 21: Creates main window app.root as a Tk object. line 22: This method call sets the title of the window to “Sample application”
Tkinter
Visual novel video game series
the series, Class of '09, was released as freeware for itch.io on October 8, 2020, with a commercial release to Linux, macOS, and Windows on June 10,
Class_of_'09_(franchise)
Sliding window based part-of-speech tagging is used to part-of-speech tag a text. A high percentage of words in a natural language are words which out
Sliding window based part-of-speech tagging
Sliding_window_based_part-of-speech_tagging
1987 Microsoft operating system version
Windows 2.0 is a major release of Microsoft Windows, a family of graphical user shells and operating systems developed by Microsoft. It was released to
Windows_2.0
Colonial architecture-style window
Initially, this type of window was just used in the homes of the wealthy, but spread over time to the homes of other classes of people. They were generally
Demerara_window
American actress (born 1972)
The In-Laws (2003). Tunney's portrayal of a sexual assault victim in Open Window (2006) was praised. Her subsequent film credits include Hollywoodland (2006)
Robin_Tunney
Database for Microsoft Windows
HKCC HKEY_CLASSES_ROOT or HKCR HKEY_CURRENT_USER or HKCU HKEY_USERS or HKU HKEY_PERFORMANCE_DATA (only in Windows NT, but invisible in the Windows Registry
Windows_Registry
British steam locomotive class (1918–1963)
The Great Northern Railway (GNR) Class O2 was a class of three-cylinder 2-8-0 steam locomotives designed by Nigel Gresley for freight work and built by
GNR_Class_O2
C header for accessing the Windows API
calling the Win32 API. Windows API Microsoft Foundation Class Library C POSIX library C standard library C++ standard library "Windows Data Types". learn
Windows.h
Diesel multiple unit
Czech Republic. Its most distinctive feature is its trapezoidal-shaped window frames. Around 500 units were built between 1996 and 2013. Originally a
Stadler_Regio-Shuttle_RS1
Class of 47 Bo′Bo′ 1160hp diesel-electric locomotives
livery variants were carried by the class whilst in BR service: British Railways green, with grey roofs, white cab window surrounds and a thin white stripe
British_Rail_Class_26
Platform-agnostic component and application architecture
Windows Runtime (WinRT) is a platform-agnostic component and application architecture first introduced in Windows 8 and Windows Server 2012 in 2012. It
Windows_Runtime
Overview of the features newly introduced in the Microsoft Windows 7 operating system
Windows 7, Microsoft Windows was deprecating some features that originated in earlier versions of Windows and included up to Windows Vista. Windows 7
Features_new_to_Windows_7
Class of British 2-8-0 locomotives
London and North Eastern Railway (LNER) Class O4 initially consisted of the 131 ex-Great Central Railway (GCR) Class 8K 2-8-0 steam locomotives acquired on
LNER_Class_O4
Class of 2-8-0 steam locomotive
a more modern Collett side window cab was provided and that they were built with outside steam pipes. 83 of the 2884 class were built between 1938 and
GWR_2884_Class
Programming pattern
X)/UIResponder (iOS) class. All view objects (NSView/UIView), view controller objects (NSViewController/UIViewController), window objects (NSWindow/UIWindow)
Chain-of-responsibility pattern
Chain-of-responsibility_pattern
Windows shell replacement
a Windows shell replacement for Windows 9x and up, licensed under the terms of the GNU General Public License (GPL). LiteStep replaces the Windows shell
LiteStep
Windows interface for monitoring and notification
Windows Management Instrumentation (WMI) is a set of extensions to the Windows Driver Model that provides an operating system interface through which instrumented
Windows Management Instrumentation
Windows_Management_Instrumentation
Service that motorists can use from their vehicle (without parking)
whether the driver or the passenger interacts with the agent. A drive-up window teller was installed at the Grand National Bank of St. Louis, Missouri,
Drive-through
Rapid application development tool
Omnis Studio running on OS X, the ability to use HTML components in window classes for Desktop Apps, Drag and Drop capability for the JavaScript Client
Omnis_Studio
American actor (born 1999)
period drama News of the World (2020), and the thriller The Woman in the Window (2021). Also in 2021, he starred in the Netflix horror The Fear Street Trilogy
Fred_Hechinger
Painting by Caspar David Friedrich
opened window. Beyond the window, the masts of ships are visible. The woman in the piece is Friedrich's wife Caroline and the view from the window is from
Woman_at_a_Window
Physical security
The term window security may refer to any of a range of measures used to avoid unauthorized access through windows, and prevent crimes such as burglary
Window_security
American children's television series
Allegra's Window is an American musical children's television series that aired on Nickelodeon during its Nick Jr. block from October 24, 1994, to December
Allegra's_Window
Construction element consisting of at least two glass plates
of two or more glass window panes separated by a space to reduce heat transfer across a part of the building envelope. A window with insulating glass
Insulated_glazing
Premier championship of motorcycle road racing
Grand Prix motorcycle racing is the highest class of motorcycle road racing. Events are held on road circuits sanctioned by the Fédération Internationale
Grand_Prix_motorcycle_racing
Grand tourer
adopted the window design of the C-Class coupe with a B pillar and fixed rear windows, rather than the pillarless design of the E-Class Coupe with roll
Mercedes-Benz_CLE
<iframe.hpp> int main() { IFrameWindow frame ("Hello, World!"); frame.showModally(); } Other examples of commonly used IOC classes and methods include: #include
IBM_Open_Class
English cricketer
played First Class cricket for Gloucestershire for his entire career (1992–2006). He scored 9,103 runs including 16 Centuries. Windows played four Youth
Matt_Windows
"windows" of payouts which can be made by the PEF to countries or aid agencies in the case of a pandemic: the insurance window and the cash window. The
Pandemic Emergency Financing Facility
Pandemic_Emergency_Financing_Facility
Category of words based on shared grammatical properties in a clause
Some word classes are universally closed, however, including demonstratives and interrogative words. Part-of-speech tagging Sliding window based part-of-speech
Part_of_speech
Grouping Americans by some measure of social status
middle class, middle class, lower middle class, working class, and lower class, while others disagree with the American construct of social class completely
Social class in the United States
Social_class_in_the_United_States
USB device class
USB communications device class (or USB CDC) is a composite Universal Serial Bus device class. It is most commonly used for computer networking devices
USB communications device class
USB_communications_device_class
1996 sports video game
Bruce Jenner's World Class Decathlon is a 1996 sports video game. In the game, the player participates in a decathlon. Reception The game received unfavorable
Bruce Jenner's World Class Decathlon
Bruce_Jenner's_World_Class_Decathlon
The X Window System core protocol is the base protocol of the X Window System, which is a networked windowing system for bitmap displays used to build
X_Window_System_core_protocol
2000 design of electric locomotive
rightmost small window which was in the upper side of the Class 6E1. On some Class 18E locomotives, one or more of the remaining small windows were slightly
South African Class 18E, Series 1
South_African_Class_18E,_Series_1
Norwegian–American cruise line
from open window on cruise ship". NBC News. 9 July 2019. "Grandfather Charged With Homicide In Death Of Toddler Who Fell From Cruise Ship Window". Moms.
Royal_Caribbean_International
2009 design of electric locomotive
in place of the rightmost small window which was in the upper sides of the Class 6E1, to the rear of the driver's window. On the left side, the air intakes
South African Class 18E, Series 2
South_African_Class_18E,_Series_2
Special folder in Microsoft Windows
In Microsoft Windows, the Briefcase is a special folder that supports a simple two-way file synchronization between itself and another folder. The Briefcase
Briefcase_(Microsoft_Windows)
WINDOW CLASS
WINDOW CLASS
Female
English
English unisex name derived from the vocabulary word, WISDOM means simply "wisdom."
Surname or Lastname
English
English : nickname for a wise or learned person, from Middle English wisdom ‘wisdom’.
Boy/Male
Australian, Christian, Teutonic
Surname and Place Name; The House of Windsor has been the Ruling Family of the Uk Since 1917; From Windsor; Landing Place with a Windlass
Surname or Lastname
English
English : habitational name from Windsor in Berkshire, Broadwindsor in Dorset, or Winsor in Devon and Hampshire, all named from an unattested Old English windels ‘windlass’ + Old English Åra ‘bank’.Windsor is the surname of the present British royal family, adopted in place of Wettin in 1917 as a response to anti-German feeling during the World War I. The original surname of Edward VII (and hence of George V up to 1917) was Wettin, his father, Prince Albert, being Prince Wettin of Saxe-Coburg-Gotha. The family took the name Windsor from the place in Berkshire, England, where Windsor Castle is a royal residence. There is unlikely to be any royal connection for American bearers, however: the name was an ordinary English habitational surname for centuries before this event.
Male
English
Variant spelling of English Lyndon, LINDON means "lime tree hill."
Male
English
English unisex name derived from the vocabulary word, WISDOM means simply "wisdom." Wisdom is composed of Wis- from the word wise, from proto-Germanic *wisaz "to know" from PIE wittos "to see," and -dom, from Latin domus, from PIE domo "house."
Surname or Lastname
English
English : topographic name for someone who lived in an area where willows grew or by a conspicuous willow tree, from an unattested Old English word, wilig.
Surname or Lastname
English
English : unexplained.
Surname or Lastname
English
English : metronymic denoting the son of a widow (see Widdowson).
Surname or Lastname
English (Lancashire)
English (Lancashire) : variant of Whinery.
Girl/Female
English American
Slender;graceful. From the willow tree noted for slender graceful branches and leaves.
Girl/Female
American, Australian, British, Chinese, Christian, English, Jamaican
Will Helmet; Protect; Tree Name; Freedom; Name of a Slender and Graceful Wood Tree; Willow Tree
Girl/Female
American, Australian, Jamaican
Full of Wind; Windy; Blustery; Breezy
Boy/Male
English German Teutonic
From Windsor. Surname and place name. The house of Windsor has been the ruling family of the UK...
Surname or Lastname
English
English : occupational name for a winder of wool, from an agent derivative of Middle English winde(n) ‘to wind’ (Old English windan ‘to go’, ‘to proceed’). The verb was also used in the Middle Ages of various weaving and plaiting processes, so that in some cases the name may have referred to a basket or hurdle maker.English : habitational name from any of the various minor places in northern England so called, from Old English vindr ‘wind’ + erg ‘hut’, ‘shelter’, i.e. a shelter against the wind.English : John Winder is recorded in Somerset Co., MD, in 1665. William Henry Winder, born in the county in 1775, was blamed for the military defeat that led to the British burning of Washington, DC, in 1814; his son John Henry Winder (b. 1800) was a confederate general who was commander of southern military prisons.
Boy/Male
Australian, Jamaican
Willow Tree
Surname or Lastname
English
English : variant of Windsor. This is the spelling used for places so named in Devon and Hampshire.Perhaps also an Americanized spelling of German Winzer.
Boy/Male
German, Teutonic
From Windsor
Surname or Lastname
English (Lancashire and Yorkshire)
English (Lancashire and Yorkshire) : habitational name from Windhill in West Yorkshire or Windle in Lancashire, both named from Old English wind ‘wind’ + hyll ‘hill’, i.e. a mound exposed to fierce gusts. There is a Windhill in Kent (with the same etymology), but this does not appear to have contributed significantly to the modern surname.
Boy/Male
African, American, Australian, British, Chinese, English, Jamaican, Japanese
Pasture Town; From Wine's Farm; From the Friend's Settlement; Willow Town
WINDOW CLASS
WINDOW CLASS
Boy/Male
Arabic
King; Crowned
Surname or Lastname
English (Devon)
English (Devon) : habitational name from any of various minor places named with Old English west ‘west’ + cot ‘cottage’, ‘shelter’, for example Westcott in Surrey, Westcot in Berkshire, or Westcote in Gloucestershire, Hampshire, and Warwickshire.
Boy/Male
Irish
noble.
Boy/Male
Hindu, Indian
Humorous; Friendly
Girl/Female
Indian
Male
French
 Norman French form of Latin Robertus, ROBERT means "bright fame." Compare with another form of Robert.
Surname or Lastname
English (chiefly Yorkshire)
English (chiefly Yorkshire) : variant spelling of Boyce.Americanized spelling of French Bois.
Boy/Male
Muslim
One who laughs often
Boy/Male
African, Arabic, Muslim, Swahili
Intelligent; Reasonable; Perceptive; Endowed with Reason
Girl/Female
American, Arabic, Australian, Christian, Danish, German, Hebrew
Zealous; Little Marcus; Wise and Peaceful
WINDOW CLASS
WINDOW CLASS
WINDOW CLASS
WINDOW CLASS
WINDOW CLASS
superl.
Serving to occasion wind or gas in the intestines; flatulent; as, windy food.
n.
A window.
v. t.
To open and cleanse, as cotton, flax, or wool, by means of a willow. See Willow, n., 2.
imp. & p. p.
of Window
v. t.
To furnish with windows.
v. t.
To expose to the wind; to winnow; to ventilate.
v. t.
To place at or in a window.
v. t.
To endow with a widow's right.
v. t.
To become, or survive as, the widow of.
n.
To separate, and drive off, the chaff from by means of wind; to fan; as, to winnow grain.
v. t.
To arrange in lines or windrows, as hay when newly made.
a.
Having windows or openings.
a.
Pertaining to a window or to windows.
n.
See Minnow.
n.
A windrow.
v. t.
See Endow.
v. t.
To reduce to the condition of a widow; to bereave of a husband; -- rarely used except in the past participle.
a.
Having little crossings or openings like the sashes of a window.
n.
The shutter, casement, sash with its fittings, or other framework, which closes a window opening.