Re: what's the best way to handle variables and objects?

[Tristan Van Berkom <tvb gnome org>]

Andreas Kotowicz wrote:
[...]
> but what should I do if I want to modify any other variables in this
> function as well? let's say that in the part where I created the
> g_signal_connect there are also some variables A and B which might be of
> interest in clear_timer_cb. 
>
> should I create a struct
>
> struct data {
>   gdouble *A;
>   gdouble *B;
>   GtkWidget *progressbar
> };
>
> and then initiate it and pass it always on?
>
> what's the best way in dealing with this?

This is a typical, popular and clean way to pass mulitple
variables/addresses to a callback, yes.

If you allocate a struct for that a g_signal_connect time...
you might want to consider useing something like
g_object_weak_ref() to free your struct when the button you
connected to is finalized (maybe there is a g_signal_connect_data_full
variation that does this for you ?).


Cheers,
                         -Tristan