Re: [sigc] is it possible to disconnect without storing `sigc::connection'?

[klaus triendl <triendl kj aon at>]

Paul Pogonyshev wrote:
> Hi,
>
> In C-level GTK+ there is a function named 
g_signal_handlers_disconnect_matched().
> It can be used to disconnect, for instance, particular handlers (i.e. 
with
> matching function) of an object.  Is something similar possible with 
libsigc++
> or do I have to store `sigc::connection' objects around?

Hi Paul,

When you connect to a signal you get an iterator back from 
signal::connect().
You could use this iterator or copy the slot the iterator points to and 
then call it->disconnect() or slotcopy.disconnect();

Note however that the iterator is only valid as long as the signal's 
slot list is valid.
Connections have a trackable mechanism and are therefore safer.


--
Klaus Triendl