title: Check if a windows form button is active?
body: <p>How do I check if a button is currently active, e.g. when you click a button it remains blue afterwards and if you tab from it you will move to the next button, not sure if that makes sense.  I have a lot of buttons in an array and I need to find which one the user has selected, or a way to easily tell when the user clicks a button.</p>