java.lang.Object | |
↳ | java.awt.event.WindowAdapter |
Known Direct Subclasses |
An abstract adapter class for receiving window events. The methods in this class are empty. This class exists as convenience for creating listener objects.
Extend this class to create a WindowEvent
listener
and override the methods for the events of interest. (If you implement the
WindowListener
interface, you have to define all of
the methods in it. This abstract class defines null methods for them
all, so you can only have to define methods for events you care about.)
Create a listener object using the extended class and then register it with
a Window using the window's addWindowListener
method. When the window's status changes by virtue of being opened,
closed, activated or deactivated, iconified or deiconified,
the relevant method in the listener
object is invoked, and the WindowEvent
is passed to it.
Public Constructors | |||||||||||
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Public Methods | |||||||||||
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Invoked when a window is activated.
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Invoked when a window has been closed.
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Invoked when a window is in the process of being closed.
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Invoked when a window is de-activated.
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Invoked when a window is de-iconified.
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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.
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Invoked when a window is iconified.
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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.
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Invoked when a window has been opened.
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Invoked when a window state is changed.
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Inherited Methods | |||||||||||
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From class
java.lang.Object
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From interface
java.awt.event.WindowFocusListener
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From interface
java.awt.event.WindowListener
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From interface
java.awt.event.WindowStateListener
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Invoked when a window is in the process of being closed. The close operation can be overridden at this point.
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.
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.