   VC Overrides panel in Properties window
  I'm using VC++ 2003 Professional.In MFC applications, when I'm working on a class derived from an MFC class (like a CDialog descendent), I see in the Properties window a little green cube with the tooltip "Overrides".  Clicking on it gives me a list of all the virtual functions that this class could override.  A click or two, and it automatically creates the function for me.That's pretty cool!  The question is, how do I get my own classes to do that?  If I write an abstract class myself and derive a new class from it, that little green cube is there but the list of overrides is empty.~BenDilts( void );   