================================================================================ Message Set Excercises

Note: There is no specific code associated with the message set exercises.
================================================================================ 
1. Display a mailtool attachment, then iconify and deiconify
   mailtool, and (using ttsession trace output) identify
   - the names of the requests sent (in order)
   - the direction each request flows between mailtool and
     the attachment displayer

2. Using ttsnoop, send a message that will cause the attachment
   displayer to iconify itself.  [Paste in the message as traced
   by ttsnoop.]

3. Find the pid of the attachment viewer and "kill -9" it.
   Display the attachment again and quit the attachment displayer.
   Contrast the message(s) that flow as a result of these
   two actions.

4. Display the attachment again and note the message(s) that
   flow when you then double-click on a different email in
   mailtool's message list, causing the attachment to be closed.
   Bring up the attachment again and, using ttsnoop,
   send a message that will cause the attachment to be closed.
   [Paste in the message as traced by ttsnoop.]

5. Now double-click on a different email in mailtool, and explain
   any differences in messaging behavior compared to the same
   operation in #4.

