Re: Canceling dialogues

[Richard Stallman]

    >> What does "Cancel" mean, in the context of a Yes/No question? Doesn't
    >> it mean the same as "No"?
    >>   
    > Does not C-g cancel the last user command?

    Not really.  It stops it dead in its track, but any progress that has
    already been made before the dialog will remain.

C-g cancels what the command is going to do.  Often, when the command
asks a question, that is a useful option.  People who write commands
know that quitting is a likely possibility whenever the command reads
input, and generally design the command to do the "real work" after it
asks the question.