Peter Allen, dans le message (.gtk.general:1072), a �crit :
> Why is it different passing the macro GINT_TO_GPOINTER(button_num)
> which after the preprocessor has got its hands on it becomes
> (void *)buttons_num
> different from &button_num, after all they point to the same thing.
No: (void *)buttons_num uses the _value_ of buttons_num as an address in
the memory, while &button_num _points_ to the place in memory where
button_num is actually stored. If you try to dereference the second,
that will work (except if it's a local variable that has been freed, but if
you dereference the first, you'll get daemons flying througs your nose. The
correct way tu use it is (int)user_data.
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