Re: [gtkmm] Re: pthreads with gtk/gtkmm

[Enrico Costanza <ec142 york ac uk>]

klaus triendl wrote:

> > To be precise, the function that I am trying to put in a thread is:
> >
> > void *test(void *arg){
> >  Args *a = (Args *) arg;
> >  Gtk::Main kit(a->argc, a->argv);
> >  gdk_rgb_init(); //initialize gtk rgb, used to display images
> >  MyCameraFramework myCameraFramework(640, 480, false);
> >  kit.run();
> >  cout << "run returned" << endl;
> >  return NULL;
> > }
> >    
>
> i would say that you reconsider your application/thread model.
>
> don't know whether the approach to put the gui-mainthread in another thread
> works but it is not a good idea.
> better create Gtk::Main in main() and then create a separate thread in
> MyCameraFramework or also in main(); then use Glib::Dispatcher as a means to
> communication with the gui-objects if you use gtkmm-2.x
>
> --
> triendl klaus
>  
Thanks for your reply.

I am using gtkmm1.2: do I have to upgrade to 2.2?

If I create a separate thread in MyCameraFramework, shall I pass to the 
thread a reference to this, so that then I can contol GUI objects with 
Dispatcher (or simila)?

What I had in mind was the java multi-thread system, that seems a lot 
simpler than pthreads.
My problem can be easily described as a producer-consumer problem. The 
producer uses gtkmm to display its status and for some Adjustments; the 
consumer produces sounds according to the producer results.


Regards,
Enrico