title: inherit and customize a windows forms trackbar control
body: <p>I am trying to put together a windows forms control for an abacus simulator. I thought to just use trackbar controls stacked on top of each other with a max value of 1, but when I stack the controls on top of each other, the only thumb you can see after dragging them into a value of 1 is the top one (the other 4 are hidden by the top one). I thought maybe I could just change the background of the controls to transparent (found another post all about that and that didn't work). Basically I just want to customize a trackbar for stacking that is only clickable on the thumb and everything but the thumb is transparent. Can anyone give me a lead to follow?</p>
  
  <p>Thanks</p>