Dispatching event to Component (KeyEvent, FocusEvent, MouseEvent)

[crikey]

import java.awt.AWTEvent;
import java.awt.Frame;
import java.awt.event.FocusEvent;
import java.awt.event.FocusListener;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;

import javax.swing.JTextField;

public class Main extends Frame {

	MyButton cutButton;

	public Main() {
		setSize(450, 250);

		cutButton = new MyButton("");
		cutButton.setBounds(10, 10, 100, 100);

		cutButton.addMouseListener(new MouseListener() {

			@Override
			public void mouseClicked(MouseEvent arg0) {
				System.out.println(arg0.toString());

			}

			@Override
			public void mouseEntered(MouseEvent arg0) {
				// TODO Auto-generated method stub

			}

			@Override
			public void mouseExited(MouseEvent arg0) {
				// TODO Auto-generated method stub

			}

			@Override
			public void mousePressed(MouseEvent arg0) {
				System.out.println(arg0.toString());

			}

			@Override
			public void mouseReleased(MouseEvent arg0) {
				// TODO Auto-generated method stub

			}

		});

		cutButton.addKeyListener(new KeyAdapter() {
			@Override
			public void keyPressed(KeyEvent e) {
				System.out.println(e.toString());

				// cutButton.dispatchEvent(e);
			}
		});

		cutButton.addFocusListener(new FocusListener() {

			@Override
			public void focusGained(FocusEvent arg0) {
				System.out.println("Focus gained!");

			}

			@Override
			public void focusLost(FocusEvent arg0) {
				System.out.println("focus lost!");

			}

		});

		add(cutButton);

	}

	public static void main(String args[]) throws InterruptedException {
		Main tf1 = new Main();
		tf1.setVisible(true);

		for (int i = 0; i < 10; i++) {
			Thread.sleep(1000);
			tf1.cutButton.processEvent(new FocusEvent(tf1.cutButton,
					FocusEvent.FOCUS_FIRST));
			tf1.cutButton.processEvent(new MouseEvent(tf1.cutButton,
					MouseEvent.MOUSE_CLICKED, System.currentTimeMillis(), 0,
					20, 20, 20, 20, 1, false, MouseEvent.BUTTON1));
			tf1.cutButton.processEvent(new KeyEvent(tf1.cutButton,
					KeyEvent.KEY_PRESSED, System.currentTimeMillis(), 0,
					KeyEvent.VK_A, (char) KeyEvent.VK_A));
		}
	}
}

class MyButton extends JTextField {
	public MyButton(String label) {
		super(label);
	}

	@Override
	public void processEvent(AWTEvent e) {
		super.processEvent(e);
	}
}

There is my SSCCE :)
My question is why when it fires the event, the character 'A' does not show up in the text box?

[camickr]

You need to invoke keyTyped() not keyPressed().

Why do you want to do work with Events? You can just use something like:

tf1.requestFocusInWindow();
//tf1.setCaretPosition(...);
tf1.replaceSelection("a");

[crikey]

Well honestly, I am making a game bot that uses a virtual mouse and keyboard. I am going to actually use it for a game applet (Runescape).I don't want to use Robot btw. And when i use this:

tf1.cutButton.processEvent(new KeyEvent(tf1.cutButton,
					KeyEvent.KEY_TYPED, System.currentTimeMillis(), 0,
					KeyEvent.VK_A, 'a'));

I get an invalid key code error

[camickr]

I believe the KeyEvent.VK_A is wrong for a keyTyped event. (I think it might be VK_UNDEFINED).

Read the KeyEvent API. It explains what values to use for the keyPressed/keyTyped events.

[crikey]

KeyEvent (Java 2 Platform SE 5.0)

I read it, but i still can't figure out whats wrong

[crikey]

Aha Thanks! It worked :)

[crikey]

OH one problem now. VK_ENTER does not work. This is how i send an 'a':

MainFrame.getApplet()
				.getComponentAt(1, 1)
				.dispatchEvent(
						new KeyEvent(MainFrame.getApplet()
								.getComponentAt(1, 1), KeyEvent.KEY_TYPED,
								System.currentTimeMillis(), 0,
								KeyEvent.VK_UNDEFINED, 'a'));

That works. But when i try enter:

MainFrame.getApplet()
				.getComponentAt(1, 1)
				.dispatchEvent(
						new KeyEvent(MainFrame.getApplet()
								.getComponentAt(1, 1), KeyEvent.KEY_TYPED,
								System.currentTimeMillis(), 0,
								KeyEvent.VK_UNDEFINED, (char) KeyEvent.VK_ENTER));

It doesen't work :(. How should i simulate enter?

[camickr]

I think you need to use the keyPressed/keyReleased events.

[crikey]

MainFrame.getApplet()
                .getComponentAt(1, 1)
                .dispatchEvent(
                        new KeyEvent(MainFrame.getApplet()
                                .getComponentAt(1, 1), KeyEvent.KEY_PRESSED,
                                System.currentTimeMillis(), 0,
                                KeyEvent.VK_UNDEFINED, 'a'));

it still doesent work :(

[crikey]

Anybody? . . . .

[camickr]

The KeyEvent parameters for keyPressed events are different than they are for keyTyped events.

If you need more help then post your SSCCE. All you need is a simple program with a JTextField and then a JButton that will dispatch the event to the text field. Make sure you use all Swing components and don't use any AWT components.

[mine0926]

Is KeyBinding not applicable in this situation?

[crikey]

Camickr-
The events that I'm using are passed onto an online Applet, and preferably a Canvas in the applet. So an SSCCE would be difficult

[camickr]

A SSCCE is simple. I suggested how to create one.

The applet has nothing to do with dispatching an event to a component. Your problem is that you don't know how to build the KeyEvent properly, which is why you first test this on a SSCCE. Once you get is working on the SSCCE you apply the knowledge to your real application.

[crikey]

Okay, i attached a Custom KeyListener, and tried to manually hit enter. Here is the output for "enter"

java.awt.event.KeyEvent[KEY_PRESSED,keyCode=10,keyText=Enter,keyChar=Enter,keyLocation=KEY_LOCATION_STANDARD,rawCode=13,primaryLevelUnicode=13,scancode=28]

java.awt.event.KeyEvent[KEY_TYPED,keyCode=0,keyText=Unknown keyCode: 0x0,keyChar=Enter,keyLocation=KEY_LOCATION_UNKNOWN,rawCode=0,primaryLevelUnicode=0,scancode=0]

java.awt.event.KeyEvent[KEY_RELEASED,keyCode=10,keyText=Enter,keyChar=Enter,keyLocation=KEY_LOCATION_STANDARD,rawCode=13,primaryLevelUnicode=13,scancode=28]

Here is my SSCCE:

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package javaapplication2;

import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import javax.swing.JFormattedTextField;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;

/**
 *
 * @author Plasmon
 */
public class JavaApplication2 {

    /**
     * @param args the command line arguments
     */
    
    public static JTextArea field;
    
   private static class CustomKeyListener implements KeyListener {

        @Override
        public void keyTyped(KeyEvent e) {
            System.out.println(e.toString());
        }

        @Override
        public void keyPressed(KeyEvent e) {
             System.out.println(e.toString());
        }

        @Override
        public void keyReleased(KeyEvent e) {
             System.out.println(e.toString());
        }
       
   }
    
    
    public static void main(String[] args) {
        field = new JTextArea();
        JFrame frame = new JFrame();
        field.addKeyListener(new CustomKeyListener());
        frame.setSize(300,300);
        frame.setLayout(null);
        field.setBounds(0,0,300,300);
        JScrollPane pane = new JScrollPane(field);
        pane.setBounds(0,0,300,300);
        frame.add(pane);
        frame.setVisible(true);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
       // KeyEvent enterEvent = new KeyEvent(field, KeyEvent.KEY_TYPED, System.currentTimeMillis(),64, 16, '\000', 2);
        //field.dispatchEvent(enterEvent);
    }
}

How do i build the enter with that information?

[camickr]

What are 64, 16, '\0 supposed to represent??? Don't use magic numbers!!!

tf.dispatchEvent( new KeyEvent(tf, KeyEvent.KEY_PRESSED, System.currentTimeMillis(),
	0, KeyEvent.VK_ENTER, (char)KeyEvent.VK_ENTER) );

[crikey]

not sure, it was there on accident :)

And that doesent work up there ^

[camickr]

Yes, well that is not how I suggested you create a SSCCE now was it? The code I posted worked for me when I created a proper SSCCE.

[DarrylBurke]

Well honestly, I am making a game bot <snip/>

Anyone else see the irony in that statement?

db