private void EffectUpdate(IVFVideoEffectLightness effect)
        {
            if (effect == null)
            {
                MessageBox.Show("Unable to configure lightness effect.");
                return;
            }

            effect.Enabled = true;
            effect.Value   = tbLightness.Value;
        }
        public void Attach(IVFVideoEffect intf)
        {
            _intf = intf as IVFVideoEffectLightness;

            if (_intf == null)
            {
                return;
            }

            tbLightness.Value = _intf.Value;
        }
 public void Fill(IVFVideoEffect effect)
 {
     _intf = effect as IVFVideoEffectLightness;
     EffectUpdate(_intf);
 }