org.gnu.gtk.event

Interface KeyListener

public interface KeyListener

This is the listener interface for receiving keyboard events on a Widget. Objects that are interested in keyboard events should implement this Interface and then register with the Widget using the Widget.addListener(KeyListener) method.

An example of using this to trap the Escape key:

  Window window;
  ...
  window.addListener(new KeyListener() {
       public boolean keyEvent(KeyEvent event) {
      		int key = event.getKeyval();
      		if (key == KeyValue.Escape) {
      			window.hide();
      			return true;
      		} else {
      			return false;
      		}
      	}
  });
 
See Also:
KeyEvent, The list of KeyEvent types

Method Summary

boolean
keyEvent(KeyEvent event)
Deprecated. Superceeded by java-gnome 4.0; this method or constant will no doubt exist conceptually, but it may have a different name or signature in order that the project API is an algorithmic mapping of the underlying native libraries.

Method Details

keyEvent

public boolean keyEvent(KeyEvent event)

Deprecated. Superceeded by java-gnome 4.0; this method or constant will no doubt exist conceptually, but it may have a different name or signature in order that the project API is an algorithmic mapping of the underlying native libraries.

Process a keystroke.
Parameters:
event - gives you access to the various methods which help you identify the keystroke. See KeyEvent.getKeyval()
Returns:
Return true if you have handled the keystroke and do not want it to propagate to the default GTK handlers. Returning false will allow the keystroke to go upstream after you're done doing whatever you're doing.