return type of GtkFunction

[Daniel Elstner <daniel elstner gmx net>]

Hi,

I'm wondering about the signature of GtkFunction:

typedef gint (*GtkFunction) (gpointer data);

Is there a particular reason why the return type is gint instead of
gboolean?  I admit that changing this would be rather cosmetic, but it
would make the intention clearer.

Cheers,
--Daniel