Thread updating GUI

[Anand]

Interesting! Refreshing the bitmap soon after it is updated
seems to fix the problem.

I will try the throbber control also.

Regards

Anand

Cliff Wells <LogiplexSoftware at earthlink.net> wrote in message news:<mailman.1040226568.31682.python-list at python.org>...
> On Wed, 2002-12-18 at 01:04, Anand B Pillai wrote:
> > This is a wxPython question. Anyway since I am using python threads I
> > shall rather post it here.
> > 
> >  I am trying to update a bitmap embedded in a wxPanel using a separate
> > thread
> > subclassed from Thread class in module threading. The basic idea is to
> > run the
> > thread and let it run a slideshow by changing images on the panel. 
> 
> Anand,
> 
> If you check out the current CVS of wxPython, there is a control
> (throbber) that does pretty much what you are trying to do (in fact, if
> you set the delay on it high enough, you'd have exactly what you're
> looking for).   There is also a demo of it in the wxPython demo (from
> CVS).
> 
> The basic problem you are facing is that you can't update the UI
> directly from a thread.  All wxPython GUI updates must be from within
> the same thread as the wxApp.  The solution is to post an event and have
> an event handler that does the drawing.
> 
> Regards,