Moving the mouse

Question

I know that you can listen for mouse events, but is there a way to take control of the mouse? What I'm thinking is making a little gag program that when the person moves the mouse up, the mouse arrow will move down. Just making the mouse move in the opposite position that they want it to go. Is moving the mouse outside the reach of Java?
Thanks

Answer 1

I used your mouse mover thing and added it to another gag program that I just completed. Pretty rough, but looks cool.
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.util.Timer;
import java.util.TimerTask;
public class Gag {
    JFrame frame = new JFrame();
    JPanel thePanel = new JPanel(new FlowLayout(3));
    JTextArea tArea = new JTextArea(20,40);
    JButton cancelButton = new JButton("Cancel");
    Font myFont = new Font("Mine",3,14);
    int timeToRun = 150;
    int num=0;
    int whereImAt=0;
    int x, y, oldx, oldy, curx, cury;
    int screenh, screenw;
    Robot r;
    String[] msgArray;
    String msg = "f,o,r,m,a,t, ,C,:, , , ,\n, , FORMAT C: DRIVE, ARE YOU SURE (Y/N):, , Y, , , , ,\n, FORMATTING C: DRIVE";
    String secMsg = "FORMAT C: DRIVE, ARE YOU SURE (Y/N):";
    String wholeMessage = "C:\\>format C: \n FORMAT C: DRIVE, ARE YOU SURE (Y/N): Y \n FORMATTING C: DRIVE \n";
    Toolkit tk;
    Timer myTimer = new Timer();
    public Gag() {
        tk = Toolkit.getDefaultToolkit();
        try {
            r = new Robot();
     } catch (Exception e) { e.printStackTrace(); }
        Dimension d = tk.getScreenSize();
     screenh = (int)d.getHeight();
     screenw = (int)d.getWidth();
        msgArray = msg.split(",");
        frame.setDefaultCloseOperation(frame.EXIT_ON_CLOSE);
        frame.setUndecorated(true);
        tArea.setBackground(Color.BLACK);
        tArea.setForeground(Color.WHITE);
        tArea.setFont(myFont);
        thePanel.setBackground(Color.BLACK);
        thePanel.add(tArea);
        thePanel.add(cancelButton);
        frame.getContentPane().add(BorderLayout.CENTER, thePanel);
        frame.setSize(screenw, screenh);
        frame.setVisible(true);
        frame.addMouseMotionListener(new MouseMotionListener() {
            public void mouseDragged(MouseEvent e) { }
            public void mouseMoved(MouseEvent e2) {
          curx = e2.getX();
          cury = e2.getY();
          x = (curx == oldx) ? curx : (curx > oldx) ? curx - 15 : curx + 15;
          y = (cury == oldy) ? cury : (cury > oldy) ? cury - 15 : cury + 15;
               if( x <= 0 ) {
                    x = screenw - 10;
                    oldx = x;
               } else {
                    oldx = x;
               if ( y <= 0 ) {
                    y = screenh - 10;
                    oldy = y;
               } else {
                    oldy = y;
               if( x >= screenw ) {
                    x = 10;
                    oldx = x;
               } else {
                    oldx = x;
               if( y >= screenh ) {
                    y = 10;
                    oldy = y;
               } else {
                    oldy = y;
               r.mouseMove(x, y);
        tArea.append("C:\\>");
        myTimer.schedule(new TimerTask(){
            public void run(){
                startGag();}
        },timeToRun,timeToRun);
    public void startGag(){
        if(whereImAt>=msgArray.length){
            if(whereImAt==msgArray.length){
                tArea.append("\n"+String.valueOf(num)+"%");
                whereImAt++;
            }else{
                if(num==101){
                    tArea.append("\n Format complete. Please restart your computer before re-installing Operating System....");
                    myTimer.cancel();
                }else{
                    tArea.setText(wholeMessage+num+"%");
                    num++;
                    whereImAt++;
        else{
            tArea.append(msgArray[whereImAt]);
            whereImAt++;
    public static void main(String[] args) {
       Gag theGag = new Gag();
}I know that a few people won't like how I wrote this, but I welcome the comments. I'll just sit back while I get ripped on.......
Message was edited by:
Ledition
Message was edited by:
Ledition