The order in which you handle your messages rarely matters. Just make sure you've got your break; after each one. As you can see we added another case into our switch(). Now we want something to happen when we get to this part of our program.
First I will present the code we want to add (that will show the user the filename of our program) and then I will integrate it into our program. Later on I will probably just show you the code and let you integrate it into your program. This is of course better for me as I don't have to type as much and it's better for you because you will be able to add the code into ANY program and not just the ones I present. If you aren't sure how to do it, look at the example zip file included