title: Does GdkRectangle have an activate event?
body: <p>I want to make a <code>GdkRectangle</code> clickable so that I can select it and get a dot in every corner of the rectangle, implying that the user can move or resize the rectangle.</p>
  
  <p>Is there an event that triggers when a <code>GdkRectangle</code> is clicked? What's the syntax of the accompanying <code>g_signal_connect</code> command?</p>