using System;

 using System.Collections.Generic;

 using System.Linq;

 using System.Text;

 using System.Threading.Tasks;

 using System.Diagnostics;

 using System.Windows.Forms;

 using CecSharp;

 namespace SharpDisplayManager

 {

     class ConsumerElectronicControl

     {

         ///

         private PowerManager.SettingNotifier iPowerSettingNotifier;

         ///

         private Cec.Client iCecClient;

         ///This flag will only work properly if both on and off events are monitored.

         ///TODO: have a more solid implementation

         public bool MonitorPowerOn;

         /// <summary>

         /// 

         /// </summary>

         /// <param name="aWndHandle"></param>

         /// <param name="aDeviceName"></param>

         /// <param name="aHdmiPort"></param>

         public void Start(IntPtr aWndHandle, string aDeviceName, byte aHdmiPort, bool aMonitorOn, bool aMonitorOff)

         {

             //Assuming monitor is on when we start up

             MonitorPowerOn = true;

             //Create our power setting notifier and register the event we are interested in

             iPowerSettingNotifier = new PowerManager.SettingNotifier(aWndHandle);

             //

             if (aMonitorOn)

             {

                 iPowerSettingNotifier.OnMonitorPowerOn += OnMonitorPowerOn;

             }

             //

             if (aMonitorOff)

             {

                 iPowerSettingNotifier.OnMonitorPowerOff += OnMonitorPowerOff;

             }

             //CEC

             iCecClient = new Cec.Client(aDeviceName,aHdmiPort);

             if (!iCecClient.Connect(1000))

             {

                 Debug.WriteLine("WARNING: No CEC connection!");

             }

         }

         //

         public void Stop()

         {

             //

             if (iPowerSettingNotifier != null)

             {

                 iPowerSettingNotifier.OnMonitorPowerOn -= OnMonitorPowerOn;

                 iPowerSettingNotifier.OnMonitorPowerOff -= OnMonitorPowerOff;

                 iPowerSettingNotifier = null;

             }

             //

             if (iCecClient != null)

             {

                 iCecClient.Close();

                 iCecClient.Dispose();

                 iCecClient = null;

             }

         }

         private void OnMonitorPowerOn()

         {

             Debug.WriteLine("ON");

             iCecClient.Lib.PowerOnDevices(CecLogicalAddress.Tv);

             iCecClient.Lib.SetActiveSource(CecDeviceType.Tv);

             MonitorPowerOn = true;

         }

         private void OnMonitorPowerOff()

         {

             Debug.WriteLine("OFF");

             iCecClient.Lib.StandbyDevices(CecLogicalAddress.Tv);

             MonitorPowerOn = false;

         }

         /// <summary>

         /// We need to handle WM_POWERBROADCAST.

         /// </summary>

         /// <param name="message"></param>

         public void OnWndProc(ref Message message)

         {

             //Hook in our power manager

             if (iPowerSettingNotifier != null)

             {

                 iPowerSettingNotifier.WndProc(ref message);

             }

         }

     }

 }