Re: Are there such tings like custom signals?

[Michael Torrie <torriem gmail com>]

On 01/23/2012 02:18 AM, Manuel Ferrero wrote:
> Il 20/01/2012 18.08, Jack ha scritto:
>
> > However, that is separate from knowing that the button has been pushed,
> > so you can then start the communications. For this, is there any reason
> > to use a custom signal? Wouldn't it be easier to catch the standard
> > signal emitted when a button is pushed, by attaching a call-back routine?
>
> Infact there is no need for a custom signal once you know about GIOChannel.
> But my question was intended for general cases. If I need to trigger a 
> complicated task when a button is pushed I'll write a callback to manage 
> the standard signal in which I'll start my $COMPLEX_PROCESS then return.
> The question was about how to write $COMPLEX_PROCESS: it doesn't involve 
> GUI so it doesn't have any standard signal, but I'd like to have the 
> signal-callback paradigm and I was wondering if GTK gives me some tool 
> or if I have to rely on an external infrastructure for it.

GTK indeed gives you a tool for generating your own signals.  You can
then catch them normally.