Re: Can I mix Xlib and Gtk+ in one app?

[Davix <sandyfox sina com>]

 Ingo Krabbe wrote:

> On Mon, 17 Dec 2001, Paul Davis wrote:
>
> > > I'm writing an app using xlib, but I need some buttons and menus.
> > you should use a proper toolkit. nobody uses xlib on its own these days
> > unless they are themselves writing a toolkit.
>
> I'm interested in this topic too. It would be nice to write some modules
> which aren't specified as gtk widgets or other gtk objects. Assume you
> write an application with a proprietary internet protocol. You surely want
> to open this protocol to any toolkit. So we need a mixed event handling,
> one for our module and one for lets say a gtk application.
>
> X isn't far away from such a network event handler since you can even
> select on the filedescriptor to the X-Server in Xlib.
>
> > > Can I mix my own event loop (while(true) { XNextEvent(Display *,
> > > XEvent*); switch(event.type) ...})
> > > with Gtk+'s main loop?
> > No.
>
> Aren't there functions in gtk which, like XNextEvent select exactly one event
> from the gtk event loop and dispatch it ? Of course we have to care about gtk
> not catching our events. Shouldn't that be easy to distinguish by opening the
> DISPLAY two times ? That may not be very, optimized but shouldn't it work ?
> I will surely track this problem down the next months.
>
> > > 	   Can I mix bare Xlib Window  with Gtk+ widgets?
> > Sometimes, but its not easy and there are many pitfalls.
> >
> > --p
>
> So lets try it:
>
> 	init gtk ... create some widgets ...
> 	init Xlib Display ... create some windows ...
> 	while ( !exit_application )
> 	{
> 		Try first event source ... handle and dispatch events
> 		Try second event source ... and so on ...
> 	}
>
> Why shouldn't this work ? The two parts don't hurt each other ?
>
> CU INGO
Hi,

Thank you all for advance. Basically, I'd like to see that gtk+ is 
friendly to bare Xlib. (like Motif?). But I don't have a clear idea for 
now, because I'm actually not familiar with gtk+. Well, I'll try to play 
with it.  

Davix