Real coordinates on the remote pc.

Sorry about the things last time i had done. Now i really need some
help from
Andrew or Roedy Green or any other person ( He or she is welcome).
Please i didn't force anyone to see or solve the problem but i really
need help this time! All the very good helping nature people in the
group.I try to solve it but i didn't get the things right.I am just
like your friend need some help?I like to know your
views its precious for me to solve the problem.

Platform:Windows 98se
Java version:v1.4.1

Problem:I had implemented one JScrollPane on which i had displayed one
image
and i add one MouseMotionListener to JScrollPane. This
MouseMotionListener
give me coordinates w.r.t the current JScrollPane.But when i scroll the
picture
through horizontal and vertical scrollbars the image changes.When i
click
somewhere on the image it gives me the coordinate w.r.t the
JScrollPane.

Is their someway i can know the real coordinates w.r.t the original
image.
Why i am asking this question is
Because i want to implement one remote desktop thing

Server end:-                                       Client end:-
Send request                ----->               Take screenshot

Display Screenshot on
JScrollPane.           <-----        Send it to Server end

On JScrollPane if user      ------->            NOW WHAT CAN I DO
clicks an image.Send click                      HERE TO MAP THE
to Client end.                    VIRTUAL COORDINATE WITH
with coordinates get by                         REAL COORDINATE.
e.getX();, e.getY();

APPROACH 1:
----------
What i think until now if i add scrollbar listeners to the scrollbars
of JScrollPane. It will help me to get Unit and Block Increment.
So that when the user scrolls horizontally i will add
e.getX()+X where X=displacement from the top of real image.
e.getY()+Y where Y=displacement from the left of real image.(or
Vertical)

What i try to implement in the below code?
->I take vertical scrollbar from JScrollPane
->I take horizontal scrollbar from JScrollPane
->add AdjustmentListener to the scrollbar
->if the button,knob or Track gets displaced know total block and value
(unit increment).
->for X displacement i calculate Math.abs(block - value) for horizontal
displacement.
->The same for Y displacement.

I already read java doc properly and implement one code myself to know
the displacement
But i don't know How i can solve it?
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;

public class ScrollTest extends JFrame
{
private int horizontal=0;
private int vertical=0;
private String output=null;
private JTextArea textArea ;
private int value = 0,block=0;
ScrollTest()
{

Container c = getContentPane();
c.setLayout(new BorderLayout());

textArea = new JTextArea(17,20);
JScrollPane pane = new JScrollPane(textArea);
pane.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
    pane.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);
   // Listen for value changes in the scroll pane's scrollbars
AdjustmentListener listener = new MyAdjustmentListener();
pane.getHorizontalScrollBar().addAdjustmentListener(listener);
pane.getVerticalScrollBar().addAdjustmentListener(listener);

    //textArea.setText(output);
    //c.add(textArea,BorderLayout.CENTER);
c.add(pane,BorderLayout.CENTER);

setSize(400,400);
validate();

setVisible(true);

}

public static void main(String args[])
{
ScrollTest app = new ScrollTest();
app.addWindowListener(
     new WindowAdapter(){
        public void windowClosing( WindowEvent e )
        {
            System.exit( 0 );
        }
      }
    );

}

class MyAdjustmentListener implements AdjustmentListener {
       // This method is called whenever the value of a scrollbar is
changed,
       // either by the user or programmatically.
public void adjustmentValueChanged(AdjustmentEvent evt) {
Adjustable source = evt.getAdjustable();

            //output = null;
           // getValueIsAdjusting() returns true if the user is
currently
           // dragging the scrollbar's knob and has not picked a final
value
if (evt.getValueIsAdjusting()) {
               // The user is dragging the knob
   return;
}

           // Determine which scrollbar fired the event
int orient = source.getOrientation();
if (orient == Adjustable.HORIZONTAL) {

output+="\nhorizontal:";
} else {
output+="\nvertical:";
}

           // Determine the type of event
int type = evt.getAdjustmentType();
switch (type) {
    case AdjustmentEvent.UNIT_INCREMENT:
      System.out.println("unit increment");
      value -= 1;//(up)
      break;
    case AdjustmentEvent.UNIT_DECREMENT:
      System.out.println("unit decrement");
      value += 1;//(down) Scrollbar was decreased by one unit
      break;
      case AdjustmentEvent.BLOCK_INCREMENT:
      System.out.println("Block increment");
      value -= 3;// (up)Scrollbar was increased by one block
      break;
      case AdjustmentEvent.BLOCK_DECREMENT:
      System.out.println("Block decrement");
      block += 3;// (down)Scrollbar was decreased by one block
      break;
      case AdjustmentEvent.TRACK:
      System.out.println("Under Track");
   // block += 3;  (i didn't know the direction)// The knob on the
scrollbar was dragged
      break;
}

           // Get current value
int scrollbarvalue = evt.getValue();
if (orient == Adjustable.HORIZONTAL) {
      horizontal += Math.abs( block - value );
      output+="\nhorizontal:";
} else {
      vertical += Math.abs( block - value );
      output+="\nvertical:";
}

System.out.println(output + "block:" + Integer.toString(block) +
       "value:" + Integer.toString(value) + "horizontal(from top):" +
Integer.toString(horizontal) + "vertical(from left):" +
Integer.toString(vertical) + "scrollbarvalue:" +
Integer.toString(scrollbarvalue));

textArea.setVisible(true);
    }
   }
}

By seeing the code Please help me to solve the problem. If you had any
code to
solve such problem please send it to me.

I am thinking whether this is the right approach or i need to do
scalling.

I don't know I get frustated while trying to solve such problem help
me!! please
I want to know your views?

APPROACH 2:
----------
I need to scale it w.r.t the remote pc coordinates.

x/ScrollPanewidth * ServerResolution = X/RemoteScreenwidth *
clientResolutionwidth;
y/ScrollPaneheight * ServerResolution = Y/RemoteScreenheight *
clientResolutionheight;

But this is not working as the mouse pointer goes to top left corner.
May be something is wrong?