org.eclipse.swt.events
Class KeyEvent

java.lang.Object
  java.util.EventObject
      org.eclipse.swt.internal.SWTEventObject
          org.eclipse.swt.events.TypedEvent
              org.eclipse.swt.events.KeyEvent

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

TraverseEvent, VerifyEvent

public class KeyEvent

extends TypedEvent

Instances of this class are sent as a result of keys being pressed and released on the keyboard

See Also:

KeyListener, Serialized Form

Field Summary

char	character the character represented by the key that was typed.
boolean	doit A flag indicating whether the operation should be allowed.
int	keyCode the key code of the key that was typed, as defined by the key code constants in class SWT.
int	stateMask the state of the keyboard modifier keys at the time the event was generated

Fields inherited from class org.eclipse.swt.events.TypedEvent

data, display, time, widget

Fields inherited from class java.util.EventObject

source

Constructor Summary

KeyEvent(Event e)
Constructs a new instance of this class based on the information in the given untyped event.

Method Summary

String

toString() Returns a string containing a concise, human-readable description of the receiver.

Methods inherited from class java.util.EventObject

getSource

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

character

public char character

the character represented by the key that was typed. This is the final character that results after all modifiers have been applied. For example, when the user types Ctrl+A, the character value is 0x01. It is important that applications do not attempt to modify the character value based on a stateMask (such as SWT.CTRL) or the resulting character will not be correct.

keyCode

public int keyCode

the key code of the key that was typed, as defined by the key code constants in class SWT. When the character field of the event is ambiguous, this field contains the unicode value of the original character. For example, typing Ctrl+M or Return both result in the character '\r' but the keyCode field will also contain '\r' when Return was typed.

See Also:

SWT

stateMask

public int stateMask

the state of the keyboard modifier keys at the time the event was generated

doit

public boolean doit

A flag indicating whether the operation should be allowed. Setting this field to false will cancel the operation.

Constructor Detail

KeyEvent

public KeyEvent(Event e)

Constructs a new instance of this class based on the information in the given untyped event.

Parameters:

e - the untyped event containing the information

Method Detail

toString

public String toString()

Returns a string containing a concise, human-readable description of the receiver.

Overrides:

toString in class TypedEvent

Returns:

a string representation of the event