The code bellow will enable users to scrible anything on a canvas. Now
what I intend to do is to create a vector object for every position
(pre_x,pre_y,x, y) of the lines drawn on the canvas and send it using
a socket connection to a remote server.

public void mouseDragged(MouseEvent e)
{
    if(isButtonPressed==true)
    {
        pre_x=e.getX()+scrollbarH_value;
        pre_y=e.getY()+scrollbarV_value;
        isButtonPressed=false;
    }
    x=e.getX()+scrollbarH_value;
    y=e.getY()+scrollbarV_value;
    offscreenImageG.drawLine( pre_x, pre_y, x, y);
    pre_x=x;
    pre_y=y;
    repaint();
    e.consume();
    message.setText(pre_x + ":" + pre_y + ":" + x + ":" + y);
}

Is my apporach considered to be feasible?. Any other ways?

Regards.