Re: Is __modified__ graphics prop useful anymore?

[John W. Eaton]

On 10/24/2016 05:10 PM, John W. Eaton wrote:
> On 10/24/2016 04:48 PM, Rik wrote:
> > 10/24/16
> >
> > I made the graphics property __modified__ a hidden property
> > (http://hg.savannah.gnu.org/hgweb/octave/rev/4ea5b0c3b10f).  But, I can't
> > see that it is used anywhere usefully in the code.  Maybe it had a
> > purpose
> > a long time ago, but should it just be put on the road to deprecation
> > now?
>
> Isn't it used in base_properties::mark_modified method?  I think the
> purpose is to tag a set of properties as modified so that there is a
> quick way to know whether something has changed and the object needs to
> be drawn again.

The base_properties::is_modified method checks the status.  It's used in 
Fdrawnow.

jwe