X-Git-Url: https://git.jsancho.org/?a=blobdiff_plain;f=examples%2F02-event-driven-programming%2F02-event-driven-programming.scm;h=b15123368cbafcdf90ae2a4f47761976a673db88;hb=5a8e5314cceaa73d438c0b3f7a2fdb26ea9b3a2c;hp=2fcd3ababc46925c9ad0f78d8b1a4c0860ee4ef1;hpb=8f7ad6cdbc41a4a10ec133c6e6029928bd304025;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 2fcd3ab..b151233 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))
-	 (bitmap "x.bmp")))
+ (window ((resolution '(640 480))
+	  (when-quit counter-quit))
+   (bitmap "x.bmp")))