Update progressbar without gtk_timeout_add

[hihihi <hihihi casema net>]

Is it possible to update a progressbar without using a gtk_timeout_add
??

I want to update a progressbar when a spinbutton is changed.

gtk_signal_connect(GTKOBJECT(adj),"value_changed",
      GTK_SIGNAL_FUNC(bar_da1),(gpointer) spinbutton_da1);

And in bar_da1 i have :

adj=GTK_PROGRESS(data)->adjustment;
gtk_progress_set_value(GTK_PROGRESS(data),new_val);

But the progressbar does not work...

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