Re: How to dispaly an Widget during callback processing

[Carlo <carlo-ag libero it>]

G Hasse ha scritto lo scorso 14/10/2004 9.18:
> On Thu, Oct 14, 2004 at 09:04:24AM +0200, Carlo wrote:
>
> > gtk rapp-informatik de ha scritto lo scorso 13/10/2004 23.46:
> >
> > > In my callback have a few longer processes
> > > Is ist possible in GTK 1.2 to show a  an information message in a widget 
> > > like   "Please wait I am working"
> > > I am searching way to force to call gtk_main to show this info widget.
> > >
> > > I there any call to gtk_main to do this.
> >
> >  while (gtk_events_pending ()) {
> >    gtk_main_iteration ();
> >  }
>
>
> You should never have the UI waiting for som operation to complete.
>
> Put your large amount of work in a separate process and make the
> UI communicate with that process. This is fairly simple to do and
> the user should be mutch happier.


In scientific computing, there are a lot of cases in which users *must*
wait until some quite time-consuming operations must be performed; in
this cases, how about using some kind of "I'm still alive" announcement
(like a bouncing progressbar or so)? and how about implementing it by a
gtk_events_pending loop?

> > > Thanks for help
> > > günther
> >
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