return TRUE;
void Gtk_color_selection_set_has_opacity_control(int ARI, ei_x_buff *XBUF, char *B, int *I){  GtkColorSelection* object;  gboolean has_opacity;  /* no return value */  if ( ! gn_check_arity(XBUF, 2, ARI) ) return;  if ( ! gn_get_arg_object(XBUF, B, I, GTK_TYPE_COLOR_SELECTION, (GObject**)&object) ) return;  if ( ! gn_get_arg_gboolean(XBUF, B, I, &has_opacity) ) return;  gtk_color_selection_set_has_opacity_control(object, has_opacity);  gn_put_void(XBUF);}