|
|||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | ||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |
java.lang.Objectjava.util.EventObject
org.eclipse.swt.internal.SWTEventObject
org.eclipse.swt.events.TypedEvent
org.eclipse.swt.events.KeyEvent
public class KeyEvent
Instances of this class are sent as a result of keys being pressed and released on the keyboard.
When a key listener is added to a control, the control will take part in widget traversal. By default, all traversal keys (such as the tab key and so on) are delivered to the control. In order for a control to take part in traversal, it should listen for traversal events. Otherwise, the user can traverse into a control but not out. Note that native controls such as table and tree implement key traversal in the operating system. It is not necessary to add traversal listeners for these controls, unless you want to override the default traversal.
KeyListener
,
TraverseListener
,
Sample code and further information,
Serialized FormField 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, as defined by the key code constants in class SWT . |
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 | |
---|---|
java.lang.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 |
---|
public char character
public int keyCode
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.
SWT
public int stateMask
SWT
.
SWT
public boolean doit
false
will cancel the operation.
Constructor Detail |
---|
public KeyEvent(Event e)
e
- the untyped event containing the informationMethod Detail |
---|
public java.lang.String toString()
toString
in class TypedEvent
|
|||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | ||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |