private void tbRoll_ConfigChanged(object sender, EventArgs e)
{
tbRoll.ValueChanged -= new EventHandler(tbRoll_ValueChanged);
int roll = (int)CameraConfig.GetRollDegree();
tbRoll.Value = roll / 5;
edRoll.Text = string.Format("{0}", roll);
tbRoll.ValueChanged += new EventHandler(tbRoll_ValueChanged);
}
