/* following is only valid for horizontal a trackbar */
newpos = ((click.x-tRect.left-(thumb/2))*(max-min)+((tRect.right-tRect.left-thumb)/2))
- /(tRect.right-tRect.left-thumb);
+ /(tRect.right-tRect.left-thumb);
/* set new postion */
SendMessage(hWnd, TBM_SETPOS, TRUE, min+newpos);