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diff --git a/examples/04-a-button.lisp b/examples/04-a-button.lisp
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+++ b/examples/04-a-button.lisp
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+;;;; examples/04-a-button.lisp
+
+(defpackage #:ww.example/4
+  (:use #:cl)
+  (:export #:start))
+
+(in-package #:ww.example/4)
+
+(defclass app-with-buttons (ww::application) ())
+
+(defmethod ww::boot ((app app-with-buttons))
+  (let ((b
+          (ww::make-texture-button
+           "Fezghoul.png" "GelatinousCube.png"
+           :pressed (lambda (button)  (format t "Button ~a was clicked!~%" button))
+           :released (lambda (button) (format t "Button ~a was relased!~%" button )))))
+    (setf (ww::x b) 100
+          (ww::y b) 100)
+
+    (ww::scale-by b 4.0)
+    
+    (ww::add-unit app b)))
+
+(defun start ()
+  (ww::start (make-instance
+              'app-with-buttons
+              :fps 30
+              :width 800
+              :height 600
+              :title "Wheelwork Example: A Button"
+              :asset-root (merge-pathnames
+                           "examples/"
+                           (asdf:system-source-directory :wheelwork)))))