title: MouseHover and MouseLeave don't work when the control is invisible
body: <p>For some reason MouseHover and MouseLeave functions behave really strange. All I need to do is, when the cursor is over the "button", I want to make the button visible and when the cursor leaves the button, I want to make it invisible. Whatever I try I couldn't make it work. It seems like Mouse events not working when the control object is invisible.</p>
  
  <pre><code>private void button1_MouseHover(object sender, EventArgs e)
  {
     button1.Visible = true;
  }
  
  private void button1_MouseLeave(object sender, EventArgs e)
  {
      button1.Visible = false;
  }
  </code></pre>