/* Once every 3 seconds we get a callback here which we use to update the tap extensions.  */
static gboolean tap_update_cb(gpointer data _U_)
/* Once every 3 seconds we get a callback here which we use to update the tap extensions.  */
static gboolean tap_update_cb(gpointer data _U_)
{
    draw_tap_listeners(FALSE);
    return TRUE;
}