[Java] Opening CD drive

anykey · Post by **anykey** » Wed 11 Oct, 2006 2:51 am

Is there an easy way to open the CD drive of a computer using java?
Not that it serves any particular purpose or anything. My plan is to create another annoying program with it (hey, I've got to keep myself entertained in compsci somehow!).
Speaking of annoying programs, I may release my ALT+TAB program, which presses alt+tab randomly (every couple of minutes or so). There's got to be somebody out that that would find it useful!

Andy_J · Post by **Andy_J** » Wed 11 Oct, 2006 3:52 am

I would hazard to guess you'd have to do it platform-dependent, and assume they have a program installed that can smecks up the hardware appropriately to do it.

I can't find anything in a cursory google on Google about doing it with just Java.

CompWiz · Post by **CompWiz** » Wed 11 Oct, 2006 7:10 pm

I'm pretty sure that there is a freeware program available for download that will make the cd tray go in and out(you set the interval), but I have no idea how you'd do it in java.

anykey · Post by **anykey** » Thu 12 Oct, 2006 2:47 am

When I used python more often, I remember the PyGame package had an eject function that essentially did this. Maybe a little more googling will turn something up.

Post by **benryves** » Thu 12 Oct, 2006 10:11 am

Under Windows, at least, you could use MCI control strings to do this (check the platform SDK - MCIWNDM_EJECT) but I don't know what Java's stance on what the CLI calls P/Invoke is, given Java's write-once-run-on-anything stance.

Captain_America · Post by **Captain_America** » Tue 19 Dec, 2006 11:39 am

Did you ever get around to releasing that alt tab deal? I could see that being loads of fun

anykey · Post by **anykey** » Tue 19 Dec, 2006 10:03 pm

Not yet! I might do it later today, depending on how lazy I am.

elfprince13 · Post by **elfprince13** » Tue 19 Dec, 2006 10:24 pm

there is no platform independent way of doing it in java. sorry. on a side note, I have some fun, mayhem causing code:

Code: Select all

import java.awt.*;
import java.util.*;
import java.awt.event.*;

class Robo{

  static int oldx = 0;
  static int oldy = 0;
  static int newx = 0;
  static int newy = 0;
  static Toolkit tk = Toolkit.getDefaultToolkit();
  static final int width = tk.getScreenSize().width;
  static final int height = tk.getScreenSize().height;
  
   public static void main(String[] args) throws Exception{
      Robot robo = new Robot();
      Random r = new Random(System.currentTimeMillis());
      for(int I = 0; I<50; I++){
	     oldx = MouseInfo.getPointerInfo().getLocation().x;
  		 oldy = MouseInfo.getPointerInfo().getLocation().y;
	     newx = r.nextInt(width);
	     newy = r.nextInt(height);
	     int xdist = Math.abs(oldx - newx);
	     int ydist = Math.abs(oldy - newy);
	     int destdist = (int)Math.sqrt(Math.pow(xdist,2)+Math.pow(ydist,2));
	     for(int i = 0; i<destdist; i++){
	         robo.mouseMove((int)(xdist/destdist),(int)(ydist/destdist) );
         }
         robo.delay(250);
         robo.mousePress(InputEvent.BUTTON1_MASK);
         robo.mouseRelease(InputEvent.BUTTON1_MASK);
      }
	robo.keyPress(KeyEvent.VK_SHIFT);
	robo.keyPress(KeyEvent.VK_CONTROL);
	robo.keyPress(KeyEvent.VK_ESCAPE);
	robo.keyRelease(KeyEvent.VK_SHIFT);
	robo.keyRelease(KeyEvent.VK_CONTROL);
	robo.keyRelease(KeyEvent.VK_ESCAPE);
   }

}

[edit]
code updated for more fun

Captain_America · Post by **Captain_America** » Tue 19 Dec, 2006 10:31 pm

I know I am probably going to look like a moron for saying this but after checking google I would like to know what do i need to compile/run java?And what do i save it as?

anykey · Post by **anykey** » Wed 20 Dec, 2006 1:31 am

How about I just give you a jar file that you can execute?
I couldn't find the tab one, but I did fix my screen-flipping program:
http://eric.woodtx.com/coding/annoying.jar
Enjoy!

Captain_America · Post by **Captain_America** » Wed 20 Dec, 2006 11:13 am

Ah thank you. I intend on putting this on my brother thumb drive and just making a little autorun script so that everytime he inserts it activates

Post by **benryves** » Wed 20 Dec, 2006 11:38 am

You still need the JRE installed though (should be on Sun's website).

anykey · Post by **anykey** » Wed 20 Dec, 2006 5:54 pm

Most people have it installed for one reason or another, so it shouldn't be too much of a problem.

Post by **benryves** » Wed 20 Dec, 2006 6:10 pm

Not since Microsoft stopped shipping it. If you're running an old version of Windows, you might well have it, but I find it rather unlikely. No school or work machines I've ever used have had it installed.

In any case, you can download it from here.

anykey · Post by **anykey** » Wed 20 Dec, 2006 9:36 pm

School computers *never* have any stuff installed. I've found that most people have it installed because certain applications needed it, sometimes even for websites.
If only windows shipped with stuff like that...too bad it's bloated with other crap! Unix distros manage to include Java, Python, and many other runtime environments and still aren't as bloated.