Re: passing #define'd value to callback

[Werner Lehmann <wl bwl uni-kiel de>]

Peter Wurmsdobler wrote:
> If the variable off/on is declared inside the create function,
> it works sometimes. However, I would prefer something without
> extra declaration of each value passed, like:

The variable gets out of scope and its reserved memory is not
reserved anymore.

>     gtk_signal_connect(
>         GTK_OBJECT( mm_off_radiobutton ), "clicked",
>         GTK_SIGNAL_FUNC( mm_state_radiobutton_clicked ),
>         &(OFF) );
>
> Any ideas?

void mm_spin_radiobutton_clicked( GtkButton *button, gpointer data )
{
  gint state = GPOINTER_TO_INT (data);
  ...
}

...

gtk_signal_connect( 
        GTK_OBJECT( mm_off_radiobutton ), "clicked",
        GTK_SIGNAL_FUNC( mm_state_radiobutton_clicked ), 
        GINT_TO_POINTER (OFF) );


Regards,
WL