title: How can i change the size of touchpad?
body: <pre><code>//x and y is absolute coordinate of the touchpad
  //dx and dy is the change in mouse position since the last acquisition
  // the variables screenX and screenY are the new positions x and y on the screen
  var maxScreenX =800;  // width Screen
  var maxScreenY =300;  // height Screen
  
  
  function transfer1(x,y,dx,dy)
  {
  
  
  }
  </code></pre>
  
  <p>The size of the touchpad is 200x200 but I want to draw on the size which the screen has so 800x300 so that I can draw from one end to another end.
  How can I do this?</p>