'aSystemWindow changed' does not refresh

I have a SystemWindow containing a SketchMorph containing a Form. On a button click, I draw on the Form and call
aSystemWindow changed.
But the window does not show the new image/drawing. I have to use
aSystemWindow layoutChanged.
to force a refresh of the window.

Why doesn't 'changed' work?

All the best,
Aik-Siong Koh

2010/1/17 askoh <[hidden email]>:
>
> I have a SystemWindow containing a SketchMorph containing a Form. On a button
> click, I draw on the Form and call
> aSystemWindow changed.
> But the window does not show the new image/drawing. I have to use
> aSystemWindow layoutChanged.
> to force a refresh of the window.
>
> Why doesn't 'changed' work?

Have you tried to send #changed to SketchMorph instead?

>
> All the best,
> Aik-Siong Koh
> --
> View this message in context: http://n4.nabble.com/aSystemWindow-changed-does-not-refresh-tp1015900p1015900.html
> Sent from the Squeak - Dev mailing list archive at Nabble.com.
>
>



--
Best regards,
Igor Stasenko AKA sig.