[mcclim-devel] double buffering of drawing panes

[Christophe Rhodes]

Orm Finnendahl <o.finnendahl at inm.mh-freiburg.de> writes:

>  in a mcclim application with incremental redisplay and lots of
> objects there is a noticeable irregular flicker when dragging some
> objects even for parts of the screen, which aren't invalidated by the
> dragging. I checked the code and verified that my redraw routine is
> not doing any redraw on these parts. It seems clim's work behind the
> scenes replaying output records is responsible for that.
>
> Is there a more or less straightforward way to implement double
> buffering on the pane without taking mcclim apart?

Without checking too closely, there is a :double-buffering t initarg to
pane creation, which has in the past worked...

Cheers,

Christophe