dp_atexit - Arrange for commands to be evaluated when the process is exited

dp_atexit option ?cmd?
The dp_atexit command manages the dp_atexit list, a list of call- back routines that are evaluated just before the tcl+tk applica- tion is exited. This is useful for applications where clean up actions must be performed before a process can safely exit. The argument option specifies the operation to be performed on the dp_atexit list. The valid options are: 
dp_atexit list
Returns the current dp_atexit list. 
dp_atexit set newList
Sets the dp_atexit list newList. 
dp_atexit append callback
Append callback to the end of the dp_atexit list. 
dp_atexit appendUnique callback
Appends callback to the end of the dp_atexit list if it's not al- ready a member of the list. 
dp_atexit prepend callback
Inserts callback at the front of the dp_atexit list. 
dp_atexit insert beforeCallback callback
Inserts callback before beforeCallback in the dp_atexit list. If beforeCallback is not in the dp_atexit list, no action is taken. 
dp_atexit delete callback
Delete callback from the dp_atexit list. If callback is not in the dp_atexit list, no action is taken. 
dp_atexit clear
Clears the dp_atexit list.

Brian Smith (bsmith@cs.berkeley.edu)
Steve Yen (syen@cs.berkeley.edu)
Stephen Tu (tus@roger-rabbit.cs.berkeley.edu)