From the docs: " method (send a-top-level-window on-close) → void?
Refine this method with augment. ... " On May 22, 2013, at 7:14 PM, Stephen Chang wrote: > I was about to reply with the same answer as Matthias, but with > define/override instead of define/augment, but I kept getting an > error. Does it say anywhere in the docs whether a method is declared > using pubment or public? I couldnt find it. > > On Wed, May 22, 2013 at 7:06 PM, Matthias Felleisen > <matth...@ccs.neu.edu> wrote: >> >> Here we go: >> >> #lang racket/gui >> >> (define my-frame% >> (class frame% >> (super-new) >> (define/augment (on-close) >> (displayln "closing now")))) >> >> (define frame >> (new my-frame% [label "on closing"][width 300][height 200])) >> >> (send frame show #t) >> >> >> >> On May 22, 2013, at 6:55 PM, Zelah Hutchinson wrote: >> >>> From the documentation I gather that I need to augment the on-close method. >>> I do not understand how to do this. Can someone show me a tiny example of >>> how to perform an operation when a window is closed? Thank you. >>> >>> ____________________________________________________________ >>> FREE 3D MARINE AQUARIUM SCREENSAVER - Watch dolphins, sharks & orcas on >>> your desktop! >>> Check it out at http://www.inbox.com/marineaquarium >>> >>> >>> >>> ____________________ >>> Racket Users list: >>> http://lists.racket-lang.org/users >> >> >> ____________________ >> Racket Users list: >> http://lists.racket-lang.org/users ____________________ Racket Users list: http://lists.racket-lang.org/users
