Re: can I pass user data to a button callback?

[Paolo Costabel <paolo zebradevelopment com>]

The prototype for the "pressed" and "released" callback is

user_function      (GtkButton <cid:part1.08050602.06020406@zebradevelopment.com> *button,
                   gpointer user_data);

gpointer is typedef'd as void *. If you are getting a compiler error, 
you are probably not including the right headers.

Felix Kater wrote:

> Hi,
>
> can I pass (a pointer to) user data to a button's callback? The compiler
> wants me to create button callbacks like void (*)(void) -- but what I
> need is void (*)(void*), at least for the "pressed" and "released"
> signals
>
> How could I do that?
>
> Felix
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