Re: Drawing area force refresh

[Nghia <nho optushome com au>]

That did the trick! Thanks

John Coppens wrote:

> On Sun, 11 Jul 2004 21:43:48 +1000
> Nghia <nho optushome com au> wrote:
>
>  
>
> > Hi,
> >
> > I'm trying to make my own progress bar by drawing to a drawing area
> > widget.
> >
> > This is my test code.
> >
> > for(i=0; i < 100; i++)
> > {
> >       g_printf("Percent: %d\n", i);
> >       DrawProgessBar(drawing_area, pixmap, i);
> >       g_usleep(100000);
> > }
> >
> > I have added code to update the drawing_area inside DrawProgressBar but 
> > it doesn't refresh in sync with the g_printf. The animation is rather 
> > "jerky".
> >
> > Any ideas on how to make it in sync with the loop?
> >    
>
> Could it be you have to to call gtk_main_iteration() in leach loop to
> allow GTK to update the screen?
>
> Depending on how you draw, you may have to call
> gdk_window_invalidate_region() to indicate part of the image has been
> modified.
>
> John
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