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java.awt.event
interface WindowFocusListener
- All Superinterfaces:
- EventListener
- All Known Implementing Classes:
- AWTEventMulticaster, WindowAdapter, BasicToolBarUI.FrameListener, JMenu.WinListener
public interface WindowFocusListener
extends EventListener
The listener interface for receiving WindowEvents, including
WINDOW_GAINED_FOCUS and WINDOW_LOST_FOCUS events.
The class that is interested in processing a WindowEvent
either implements this interface (and
all the methods it contains) or extends the abstract
WindowAdapter class (overriding only the methods of interest).
The listener object created from that class is then registered with a
Window
using the Window's addWindowFocusListener method.
When the Window's
status changes by virtue of it being opened, closed, activated, deactivated,
iconified, or deiconified, or by focus being transfered into or out of the
Window, the relevant method in the listener object is invoked,
and the WindowEvent is passed to it.
| Method Summary |
void |
Invoked when the Window is set to be the focused Window, which means
that the Window, or one of its subcomponents, will receive keyboard
events.
|
void |
Invoked when the Window is no longer the focused Window, which means
that keyboard events will no longer be delivered to the Window or any of
its subcomponents.
|
windowGainedFocus
public void windowGainedFocus(WindowEvent e)
-
Invoked when the Window is set to be the focused Window, which means
that the Window, or one of its subcomponents, will receive keyboard
events.
- Parameters:
e
windowLostFocus
public void windowLostFocus(WindowEvent e)
-
Invoked when the Window is no longer the focused Window, which means
that keyboard events will no longer be delivered to the Window or any of
its subcomponents.
- Parameters:
e
This documentation differs from the official API.
Jadeite adds
extra features to the API including:
variable font sizes,
constructions examples,
placeholders for classes and methods, and auto-generated “See Also” links.
Additionally it
is missing some items found in standard Javadoc documentation, including:
generics type information,
“Deprecated” tags and comments,
“See Also” links,
along with other minor differences.
Please send any questions or feedback to
bam@cs.cmu.edu.
This page displays the
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The official Sun™ documentation can be found here at
http://java.sun.com/javase/6/docs/api/.