public Win32DisplayBrightness(DisplayPowerFlags power, Byte level)
 {
     m_Power = power;
      m_ACBrightness = m_DCBrightness = level;
 }
 public void SetLevel(DisplayPowerFlags power, Byte level)
 {
     Win32DisplayBrightness db = new Win32DisplayBrightness(power, level);
       Control(s_SetBrightness, db);
 }