Glade, GTK problem
 

I have an application with a button and a hscale. The button is used for setting the value of the hscale.

I got the following error:

(kino:14479): Gtk-CRITICAL **: file gtkrange.c: line 669 (gtk_range_set_value): assertion `GTK_IS_RANGE (range)' failed

The code is:

void
on_BUTTON_clicked (GtkButton *button, gpointer user_data)
{
GtkRange *scale = (GtkRange *)g_object_get_data(G_OBJECT(button), "hscale1");
gtk_range_set_value(GTK_RANGE(scale), 0);
}

I get the next error

(kino:14479): Gtk-CRITICAL **: file gtkrange.c: line 669 (gtk_range_set_value): assertion `GTK_IS_RANGE (range)' failed

Can someone help me?