On Tue, Mar 17, 2009 at 9:00 PM, Andreas Raab <andreas.raab at gmx.de> wrote:

> Michael van der Gulik wrote:
>
>> Is there a trick related to deferUpdates:? Or is it not really supported
>> or supported using some other plug-in?
>>
>
> Yes, there is a trick. Compare these two:
>
> 1 to: 1000 do:[:i|
>        Display getCanvas line: i at 0 to: i at 500 width: 1 color: Color black.
> ].
>
> vs. (after doing a restore display):
>
> Display deferUpdates: true.
> 1 to: 1000 do:[:i|
>        Display getCanvas line: i at 0 to: i at 500 width: 1 color: Color black.
> ].
> Display forceToScreen: Display boundingBox. "way too much but hey..."
>


Thanks, Andreas. I'm not sure if it's double-buffering, but it achieves the
same goal.

In other news, my image causes the VM to do a segmentation fault on startup.
I'll work out if that's from stupidity or a legitimate bug tonight.

Gulik.

-- 
http://gulik.pbwiki.com/
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