[cl-gtk2-devel] how to send messages to a window?

[Kalyanov Dmitry]

On Thursday 22 April 2010 19:13:21, Tamas Papp wrote:
> On Wed, 21 Apr 2010, Kalyanov Dmitry wrote:
> > On Wednesday 21 April 2010 12:50:47, Tamas Papp wrote:
> > > Hi,
> > > 
> > > How can I send an "expose" message to a window from _outside_ the main
> > > loop?
> > 
> > Basically, you can't. You should call queue-widget-draw function inside
> > main loop by means of within-main-loop-and-wait (this macro will wait
> > until your code actually completes in the main loop and returns its
> > return value) or within-main-loop (this macro will not wait until your
> > code finishes or even starts executing and returns immediately). Call to
> > this function marks the widget area as invalidated and at the next
> > occasion (at the next iteration of gtk+ event loop) Gtk+ will repaint
> > the widget.
> 
> Thanks, that's what I am doing now.
> 
> > > But when I call sync, sometimes I get "unmapped memory area" errors
> > > for GObject callbacks.  The whole code is available here:
> > > http://github.com/tpapp/cl-cairo2/tree/master/src/gtk2/
> > 
> > Could you provide more information, a stack trace? Where does this
> > message comes from - is it a Lisp exception or cairo error message or
> > gtk error message? Does it occur randomly or deterministically?
> 
> This is a Lisp exception, occurring randomly.  Backtrace is here:
> 

I'm sorry for the long delay - I'll try to look into the issue soon.

----
Кальянов Дмитрий
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 198 bytes
Desc: This is a digitally signed message part.
URL: <https://mailman.common-lisp.net/pipermail/cl-gtk2-devel/attachments/20100511/45bd393c/attachment.sig>