Re: Pixbuf->get_from_drawable in Xvfb ccontext?

[Scott Sneddon <scott sneddon gmail com>]

That did it.
I suspected as much (but would never have known of Glib::Idle as a  
solution).
Thanks,

Scott
On Dec 31, 2008, at 11:50 AM, Torsten Schoenfeld wrote:

> Scott Sneddon wrote:
> > Do I need to call snapshot in the event loop in order to get the  
> > screen to
> > render?  and if so, what event should I look for to guarantee that  
> > the event
> > is triggered in the Xvfb environment (no mouseclicks).
>
> You are calling snapshot() before the main loop had a chance to do any
> work.  You can use an idle callback to take the snapshot when gtk+  
> has finished
> drawing all widgets:
>
>  Glib::Idle->add (sub { snapshot(); return Glib::SOURCE_REMOVE; });
>
> However, even with this there is still a race condition regarding  
> the window
> manager borders: the window manager might not have drawn the borders  
> yet when
> the callback is triggered.  But apparently you don't use a window  
> manager, so
> maybe this is irrelevant in your case.
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