diff -r e22bf44c4300 -r e7c8c2b500bd PowerManager/PowerManager.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/PowerManager/PowerManager.cpp	Thu Sep 24 21:39:05 2015 +0200
@@ -0,0 +1,142 @@
+// This is the main DLL file.
+
+#include "stdafx.h"
+
+#include "PowerManager.h"
+
+using namespace System::Diagnostics;
+
+namespace PowerManager
+{
+    ///
+    PowerSettingNotifier::PowerSettingNotifier(IntPtr aHandle, Boolean aService)
+    {
+        Construct(aHandle, aService);
+    }
+
+    ///
+    PowerSettingNotifier::PowerSettingNotifier(IntPtr aHandle)
+    {
+        //By default we assume we run as a Window
+        Construct(aHandle, false);
+    }
+
+    ///
+    void PowerSettingNotifier::Construct(IntPtr aHandle, Boolean aService)
+    {
+        iHandle = aHandle;
+        iIsService = aService;
+        iMonitorPowerOnDelegate = nullptr;
+        iMonitorPowerOffDelegate = nullptr;
+        iMonitorPowerObserverCount = 0;
+    }
+
+    ///
+    Boolean PowerSettingNotifier::RegisterPowerSettingNotification(IntPtr aHandle, Boolean aService)
+	{
+        HANDLE handle = aHandle.ToPointer();        
+        HPOWERNOTIFY res=::RegisterPowerSettingNotification(handle, &GUID_MONITOR_POWER_ON, (aService?DEVICE_NOTIFY_SERVICE_HANDLE:DEVICE_NOTIFY_WINDOW_HANDLE));
+        return (res != NULL);
+	};
+
+    /// 
+    Boolean PowerSettingNotifier::RegisterPowerSettingNotification(IntPtr aHandle)
+    {
+        return RegisterPowerSettingNotification(aHandle,false);
+    };
+
+    ///
+    void PowerSettingNotifier::WndProc(Message% aMessage)
+    {
+        POWERBROADCAST_SETTING* setting;
+
+        if (aMessage.Msg == WM_POWERBROADCAST && aMessage.WParam.ToInt32() == PBT_POWERSETTINGCHANGE)
+        {
+            setting=(POWERBROADCAST_SETTING*)aMessage.LParam.ToPointer();
+            if (setting->PowerSetting == GUID_MONITOR_POWER_ON)
+            {
+                if (setting->Data[0] == 0x0)
+                {
+                    Debug::WriteLine(L"POWERBROADCAST: Monitor Power Off");
+                    OnMonitorPowerOff();
+                }
+                else if (setting->Data[0] == 0x1)
+                {
+                    Debug::WriteLine(L"POWERBROADCAST: Monitor Power On");
+                    OnMonitorPowerOn();
+                }
+            }
+        }
+
+
+    }
+
+    ///
+    void PowerSettingNotifier::OnMonitorPowerOn::add(PowerManagerDelegate^ d)
+    {
+        iMonitorPowerOnDelegate += d;
+        iMonitorPowerObserverCount++;
+        //iMonitorPowerOnDelegate->GetInvocationList()->GetLength(0)
+        if (iMonitorPowerObserverCount == 1)
+        {
+            //TODO: register
+            RegisterPowerSettingNotification(iHandle,iIsService);
+        }
+
+    }
+
+    ///
+    void PowerSettingNotifier::OnMonitorPowerOn::remove(PowerManagerDelegate^ d)
+    {
+        iMonitorPowerOnDelegate -= d;
+        iMonitorPowerObserverCount--;
+        if (iMonitorPowerObserverCount==0)
+        {
+            //TODO: unregister
+        }
+    }
+
+    //
+    void PowerSettingNotifier::OnMonitorPowerOn::raise()
+    {        
+        if (iMonitorPowerOnDelegate != nullptr)
+        {
+            iMonitorPowerOnDelegate->Invoke();
+        }
+    }
+
+    ///
+    void PowerSettingNotifier::OnMonitorPowerOff::add(PowerManagerDelegate^ d)
+    {
+        iMonitorPowerOffDelegate += d;
+        iMonitorPowerObserverCount++;
+        if (iMonitorPowerObserverCount == 1)
+        {
+            //TODO: register
+            RegisterPowerSettingNotification(iHandle, iIsService);
+        }
+    }
+
+    ///
+    void PowerSettingNotifier::OnMonitorPowerOff::remove(PowerManagerDelegate^ d)
+    {
+        iMonitorPowerOffDelegate -= d;
+        iMonitorPowerObserverCount--;
+        if (iMonitorPowerObserverCount == 0)
+        {
+            //TODO: unregister
+        }
+    }
+
+    //
+    void PowerSettingNotifier::OnMonitorPowerOff::raise()
+    {
+        if (iMonitorPowerOffDelegate != nullptr)
+        {
+            iMonitorPowerOffDelegate->Invoke();
+        }        
+    }
+
+
+
+}
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