title: Mouse Leave event on Windows Form
body: <p>I've set the 'mouse leave' event on a windows form and I want to hide the form when the mouse leaves the visible area.</p>
  
  <p>But here is where I am facing a problem. Even when I move the mouse to a button on the same form, it calls the 'mouse leave' event, which makes this form invisible.</p>
  
  <p>It means I've got to prevent the event triggering when moving the mouse to the button. But how?
  Any other approach?</p>