In LWW Personal 4.6, when I call gp:invalidate-rectangle on an output- pane, the pane is first cleared and then display-callback is called. Is it possible to change this behavior in such a way that the pane is not cleared before calling the callback? Thanks, Michal
You can specialize the method invalidate-rectangle for your own class of output-pane. In the specialized method you can call the display-callback of the pane without calling clear-rectangle before (witch does the standard method). Denis Le 9/01/07 22:12, « [NOM] » <[ADRESSE]> a écrit : > > In LWW Personal 4.6, when I call gp:invalidate-rectangle on an output- > pane, the pane is first cleared and then display-callback is called. > Is it possible to change this behavior in such a way that the pane is > not cleared before calling the callback? > > Thanks, > > Michal > > ------------------------------------------------------- Denis Pousseur 70 rue de Wansijn 1180 Bruxelles, Belgique Tel : 32 (0)2 219 31 09 Mail : denis.pousseur@compositeurs.be Website : http://compositeurs.be/Pousseur -------------------------------------------------------