Spm ang. JMF

Jeg har "lånt" denne klasse. Når jeg kører den får jeg en NullPointerException fordi min string værdi til denne metode

CaptureDeviceManager.getDevice("vfw:Microsoft WDM Image Capture (Win32):0");

Åbenbart ikke er korrekt.
Det jeg er interesseret i er den er korrekt i forhold til mit Logitech Sphere web-kamera?

package WebKamera;

import java.io.*;
import java.util.*;
import java.awt.*;
import java.awt.image.*;
import javax.imageio.*;
import javax.media.*;
import javax.media.control.*;
import javax.media.format.*;
import javax.media.util.*;

/**
*
* @author  Danni
*/
public class FrameGrab {
   
    /** Creates a new instance of FrameGrab */
    public FrameGrab() {
    }
   
    /**
    * @param args the command line arguments
    */
    public static void main(String[] args) {
        //opretter et device til at "capture" med
        try{       
        CaptureDeviceInfo deviceInfo = CaptureDeviceManager.getDevice("vfw:Microsoft WDM Image Capture (Win32):0");       
        Player player = Manager.createRealizedPlayer(deviceInfo.getLocator());       
        player.start();

        // Wait a few seconds for camera to initialise (otherwise img==null)
        Thread.sleep(2500);

        // Grab a frame from the capture device
        FrameGrabbingControl frameGrabber = (FrameGrabbingControl)player.getControl("javax.media.control.FrameGrabbingControl");
        Buffer buf = frameGrabber.grabFrame();

        // Convert frame to an buffered image so it can be processed and saved
        Image img = (new BufferToImage((VideoFormat)buf.getFormat()).createImage(buf));
        BufferedImage buffImg = new BufferedImage(img.getWidth(null), img.getHeight(null), BufferedImage.TYPE_INT_RGB);
        Graphics2D g = buffImg.createGraphics();
        g.drawImage(img, null, null);

        // Overlay curent time on image
        g.setColor(Color.RED);
        g.setFont(new Font("Verdana", Font.BOLD, 16));
        g.drawString((new Date()).toString(), 10, 25);

        // Save image to disk as PNG
        ImageIO.write(buffImg, "png", new File("c:\\webcam.png"));

        // Stop using webcam
        player.close();
        player.deallocate();
        System.exit(0);
        }
        catch(IOException e){e.printStackTrace();}
        catch(InterruptedException e){e.printStackTrace();}   
        catch(NoPlayerException e){e.printStackTrace();}
        catch(CannotRealizeException e){e.printStackTrace();}
    } 
}