KeyEvent

Instances of this class are sent as a result of keys being pressed and released on the keyboard. <p> 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. </p>

@see KeyListener @see TraverseListener @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>

Constructors

this
this(Event e)

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

Members

Functions

toString
String toString()

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

Variables

character
wchar 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.

doit
bool doit;

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

keyCode
int keyCode;

the key code of the key that was typed, as defined by the key code constants in class <code>SWT</code>. 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.

stateMask
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 <code>SWT</code>.

Inherited Members

From TypedEvent

display
Display display;

the display where the event occurred

widget
Widget widget;

the widget that issued the event

time
int time;

the time that the event occurred.

data
Object data;

a field for application use

getName
String getName()

Returns the name of the event. This is the name of the class without the module name.

toString
String toString()

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

Meta