[mcclim-devel] button size

Hello, In order to give a project to my students using McClim for the graphical interface, I am trying to make a square button of a given size. But I always obtain a default size button the width, height, max-width, ... have no effect. Where could I find some help about that? Thank you, Irène (defun make-square-pane () (make-pane 'square-button-pane :label "" :width 20 :height 20 :activate-callback (lambda (x) (setf (gadget-label x) "O"))))