Note: This is a work in progress and many formatting issues have been fixed. Read more about the project on the home page.
Handler:
HyperCard sends the quit
message to the current card when the user chooses Quit HyperCard from the File menu (or presses Command-Q), just before HyperCard quits.
Any return-separated list of built-in commands, user-defined handlers, or keywords that are part of a message or function handler.