 |
Chapter 19 java.awt Reference |
 |
Window
Name
Window
![[Graphic: Figure from the text]](./figs/window.gif)
Description
The Window class serves as a top-level display area that exists outside the browser or applet area you may be working in. A window must have a parent Frame.
Class Definition
public class java.awt.Window
extends java.awt.Container {
// Constructors
public Window (Frame parent);
// Instance Methods
public void addNotify();
public synchronized void addWindowListener (WindowListener l); 
public void dispose();
public Component getFocusOwner();
public Locale getLocale();
public Toolkit getToolkit();
public final String getWarningString();
public boolean isShowing();
public void pack();
public boolean postEvent (Event e); 
public synchronized void remove WindowListener (WindowListener l);
public void show();
public void toBack();
public void toFront();
//Protected Instance Methods
protected void processEvent (AWTEvent e);
protected void processWindowEvent (WindowEvent e);
}
Constructors
Window
public Window (Frame parent)
- Parameters
-
- parent
-
Frame that is to act as the parent of Window.
- parent
- Description
-
Constructs a Window object.
Instance Methods
addNotify
public void addNotify()
- Overrides
-
Container.addNotify()
- Description
-
Creates Window's peer and peers of contained components.
removeWindowListener
public synchronized void removeWindowListener(WindowListener l)
- Parameters
-
- l
-
One of this Frame's WindowListeners.
- l
- Description
-
Remove an event listener.
addWindowListener
public synchronized void addWindowListener (WindowListener l)
- Parameters
-
- l
-
An object that implements the WindowListener interface.
- l
- Description
-
Add a listener for windowing events.
dispose
public void dispose()
- Returns
-
Releases the resources of the Window.
getFocusOwner
public Component getFocusOwner()
- Returns
-
The child component that currently has the input focus.
getLocale
public Locale getLocale()
- Returns
-
The locale for this Window.
- Overrides
-
Window.getLocale()
getToolkit
public Toolkit getToolkit()
- Returns
-
Toolkit of Window.
- Overrides
-
Component.getToolkit()
getWarningString
public final String getWarningString()
- Returns
-
String that will be displayed on the bottom of insecure Window instances.
isShowing
public boolean isShowing()
- Returns
-
true if the Window is showing on the screen, false otherwise.
pack
public void pack()
- Description
-
Resizes Window to getPreferredSize() of contained components.
postEvent
public boolean postEvent (Event e)
- Parameters
-
- e
-
Event instance to post to window.
- e
- Returns
-
If Event is handled, true is returned. Otherwise, false is returned.
- Description
-
Tells the Window to deal with Event.
removeWindowListener
public synchronized void removeWindowListener (WindowListener l)
- Parameters
-
- l
-
One of this Frame's WindowListeners.
- l
- Description
-
Remove an event listener.
show
public void show()
- Description
-
Show the Window and validate its components.
- Overrides
-
Component.show()
toBack
public void toBack()
- Description
-
Puts the Window in the background of the display.
toFront
public void toFront()
- Description
-
Brings the Window to the foreground of the display.
Protected Instance Methods
processEvent
protected void processEvent (AWTEvent e)
- Parameters
-
- e
-
The event to process.
- e
- Description
-
Low level AWTEvents are passed to this method for processing.
processWindowEvent
protected void processWindowEvent (WindowEvent e)
- Parameters
-
- e
-
The event to process.
- e
- Description
-
Window events are passed to this method for processing. Normally, this method is called by processEvent().
See Also
Component, Container, Dialog, Frame, String, Toolkit
|
 |
|
| Toolkit |  |
Clipboard |
