Re: connecting a callback to a boolean value

[tc6 <tc6 free fr>]

My question was about emitting a signal each time a function (that does 
not belong to a gtkmm widget) returns true without testing it each time.
My goal is not to test the returned value each time, but using something 
like add_watch of  Glib::IOChannel.
Is it possible?
Well in fact I explained my problem in a previous mail : "Trying 
Glib::signal_io().connect() with GIOChannel (from gnet)". And I'm still 
stuck with it.

Thank you anyway for your answer.



Murray Cumming wrote:

> On Sun, 2005-04-17 at 09:11 +0200, tc6 wrote:
>  
>
> > unfortunately no widget causes the boolean to change its value. Indeed 
> > it is gnet_udp_socket_has_packet return value.
> >
> > Any idea about how this function may call a callback when changing value?
> >    
>
> if(result)
>  signal_your_sigc_signal.emit(your_signal_parameters);
>
> See the libsigc++ documentation for more help on creating your own
> signals.
>
>