Where can I find drivers for my Sony Vaio touchpad?

Question

I am trying to create a kind of simplified graphics library on top of the built-in Java graphics system. I want to use it in teaching so students can create graphical programs without needing to create their own classes, or especially need to use inheritance.

Anyway, as I have it, the windows do not close as I expect them to and I cannot figure out why. The weird thing is that if I have a println in the main program loop it does work. What's going on? Here is a minimal example:

package test;

import javax.swing.JFrame;
import java.awt.event.WindowListener;
import java.awt.event.WindowEvent;
import java.util.Queue;
import java.util.LinkedList;

/** enumeration of the different types of events which a window can produce */
enum EventType {
    Closed,
    KeyPressed,
    KeyReleased,
    MousePressed,
    MouseReleased,
    MouseMoved
}

/** a class which represents an event which a window can produce */
class Event {
    private EventType t;

    /** create a new event of a given type */
    public Event(EventType type) {
        t = type;
    }

    /** check which type of event it is */
    public EventType getType( ) {
        return t;
    }
}

/** a graphics window */
class Window implements WindowListener {
    private JFrame frame;
    private boolean open;
    private Queue<Event> events;

    /** create the window */
    public Window(String title, int width, int height, boolean resizable) {
        frame = new JFrame(title);
        frame.setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);
        frame.setSize(width, height);
        frame.setResizable(resizable);
        frame.setVisible(true);
        frame.addWindowListener(this);
        events = new LinkedList<>( );
        open = true;
    }

    /** checks whether the window is still open or not */
    public boolean isOpen( ) {
        return open;
    }

    /** closes the window */
    public void close( ) {
        open = false;
        frame.dispose( );
    }

    /** returns the next event, or null if there is none */
    public Event pollEvent( ) {
        return events.poll( );
    }

    /* functions which implement window listening */
    public void windowOpened(WindowEvent e) { }
    public void windowIconified(WindowEvent e) { }
    public void windowDeiconified(WindowEvent e) { }
    public void windowActivated(WindowEvent e) { }
    public void windowDeactivated(WindowEvent e) { }
    public void windowClosed(WindowEvent e) { }
    public void windowClosing(WindowEvent e) {
        System.out.println("Adding close event");
        events.add(new Event(EventType.Closed));
    }
}

public class Test {
    public static void main(String args[]) {
        // create the window
        Window window = new Window("Hello world!", 800, 600, false);

        // while the window is open
        while (window.isOpen( )) {
            // check for events
            Event event = window.pollEvent( );
            if (event != null) {
                switch (event.getType( )) {
                    // handle the window close event
                    case Closed:
                        System.out.println("Calling close");
                        window.close( );
                        break;
                }
            }

            // when this line is un-commented, it works as expected???
            //System.out.print('.');
        }
        System.out.println("All done!");
    }
}

Solution

Most Sony laptops use Alps touchpads. This is a link to a WIN7 64 bit driver package ALPS Windows 7 x64 You should be able to find an x86 driver with a bit of digging at Sony Support as mentioned by @slhck

Comments

[slhck]

Sony Support. Do you have a more precise model number?

[Flamyx]

I can't find my model number in there :/, any other suggestions please ?

[Murat Karagöz]

Unrelated, but why do you have whitespaces between brackets window.close( )?

[Ian Finlayson]

@LuxxMiner, I want to explicitly catch the closing which is why I implement implements WindowListener. According to the docs (docs.oracle.com/javase/tutorial/uiswing/events/…) that should be an OK approach?

[Betlista]

@MuratK.probably a code formatter setting... You can define the same in Eclipse for example...

[Mati]

Can you tell what you want to achive? I've launched this program and after closing it, I have "Adding close event Calling close All done!"

[Ian Finlayson]

@MuratK. that is just my style. I know it's unusual, but they look weird to me as (). I should probably learn to do that though...

[Lukas Rotter]

@IanFinlayson You can also catch the closing event with EXIT_ON_CLOSE or DISPOSE_ON_CLOSE as the default close operation, it will still work.

[Ian Finlayson]

@Mati maybe it is platform-specific, but when I run this program (on Linux), the window does not close, but just stays open forever.

[Ian Finlayson]

@LuxxMiner Oh interesting! I will try that.

[Flamyx]

ill look it up, and its okay I have the 64 bit WIN, but thx anyways :D

[QMaster]

It's appropriate just for VPCEB11FM/BI Model as you can see in top of the page in red color "IMPORTANT: This file is only for use with the models identified. Not all models are sold in all countries." Anyway i downloaded My VAIO version VPCF12THX/H but when i try to install it warn about this program is just for windows vista/windows 7. My VAIO has Windows 7 Ultimate 64Bit and i don't understand why i saw this message.

[user1803551]

Tip: try not to name your classes with the same names as classes from relevant packages. Window and Event are already used in the graphical contexts you are using.

[Ian Finlayson]

That doesn't really help. It does cause the window to close, but the program still hangs forever and never finishes main.

[James Wierzba]

Remove the while loop, it looks like it might be an infinite loop. Setting DISPOSE_ON_CLOSE should stop the VM entirely when the windows close.

[Ian Finlayson]

That makes sense, but that's not how I want it to work. I want to put a procedural style API on top of the callback based one. So that you could write graphical programs just in a main function.

[martinez314]

@JamesWierzba it's called from his window.close() method.

[Ian Finlayson]

Thanks so much. This wasn't exactly what I needed, but talking about the EDT which I hadn't heard of led me to the answer (stackoverflow.com/a/34136793/2213804). Thanks!