Re: [gtkmm] Drawing primitives on top of an image.

[Tassos Bassoukos <abas aix meng auth gr>]

Christer Palm wrote:
> Paul Davis wrote:
>
> > also, you should only *ever* put drawing functions (for any kind of
> > visible thing: a line, an image, text, etc) in an expose event
> > handler.
>
> Or, alternatively, draw into an offscreen pixmap and let the expose 
> event handler update from that. Depending on what the original poster is 
> up to, this might be what he's looking for.

Indeed. Not to nitpick, but note that gtk/gdk already implements by 
default double-buffering for exposed areas, so this is only an issue if 
drawing takes more time than copying (see f.e. fractal imaging).

Anyway, my &eur;0.02 :-)
Tassos