X-Git-Url: https://git.jsancho.org/?a=blobdiff_plain;f=examples%2F02-event-driven-programming%2F02-event-driven-programming.scm;h=a75eddfd5770e99d9f75e3592c82275a06c7b796;hb=e1e0e1c4a98a9b27391eeef40dea40a59d983710;hp=0044ac53160b33c7fc31663b4fc75e4fbd68b905;hpb=ee72c2bc37b7d06fbf90b27fa8e45e6f2d4e27bc;p=gacela.git diff --git a/examples/02-event-driven-programming/02-event-driven-programming.scm b/examples/02-event-driven-programming/02-event-driven-programming.scm index 0044ac5..a75eddf 100644 --- a/examples/02-event-driven-programming/02-event-driven-programming.scm +++ b/examples/02-event-driven-programming/02-event-driven-programming.scm @@ -19,6 +19,16 @@ (use-modules (gacela)) +(define counter-quit #f) +(let ((n 0)) + (set! counter-quit + (lambda () + (set! n (+ n 1)) + (format #t "Quit clicked ~a times !!~%" n) + (if (> n 2) + (stop-game))))) + (display-scene - (window '(#:resolution (640 480)) - (import-bitmap "x.bmp"))) + (window ((resolution '(640 480)) + (when-quit counter-quit)) + (image "x.bmp")))