SharpDisplayManager: PowerManager/PowerManager.cpp@59ea5cb46258

     1 // This is the main DLL file.

     3 #include "stdafx.h"

     5 #include "PowerManager.h"

     7 using namespace System::Diagnostics;

     9 namespace PowerManager

    10 {

    11     ///

    12     SettingNotifier::SettingNotifier(IntPtr aHandle, Boolean aService)

    13     {

    14         Construct(aHandle, aService);

    15     }

    17     ///

    18     SettingNotifier::SettingNotifier(IntPtr aHandle)

    19     {

    20         //By default we assume we run as a Window

    21         Construct(aHandle, false);

    22     }

    24     ///

    25     void SettingNotifier::Construct(IntPtr aHandle, Boolean aService)

    26     {

    27         iHandle = aHandle;

    28         iIsService = aService;

    29         iMonitorPowerOnDelegate = nullptr;

    30         iMonitorPowerOffDelegate = nullptr;

    31         iMonitorPowerObserverCount = 0;

    32         iMonitorPowerHandle = NULL;

    33     }

    35     ///

    36     HPOWERNOTIFY SettingNotifier::RegisterPowerSettingNotification(LPCGUID aGuid)

    37 	{

    38         HANDLE handle = iHandle.ToPointer();

    39         return ::RegisterPowerSettingNotification(handle, aGuid, (iIsService?DEVICE_NOTIFY_SERVICE_HANDLE:DEVICE_NOTIFY_WINDOW_HANDLE));

    40 	}

    42     ///

    43     void SettingNotifier::WndProc(Message% aMessage)

    44     {

    45         POWERBROADCAST_SETTING* setting;

    47         if (aMessage.Msg == WM_POWERBROADCAST && aMessage.WParam.ToInt32() == PBT_POWERSETTINGCHANGE)

    48         {

    49             setting=(POWERBROADCAST_SETTING*)aMessage.LParam.ToPointer();

    50             if (setting->PowerSetting == GUID_MONITOR_POWER_ON)

    51             {

    52                 if (setting->Data[0] == 0x0)

    53                 {

    54                     Debug::WriteLine(L"POWERBROADCAST: Monitor Power Off");

    55                     OnMonitorPowerOff();

    56                 }

    57                 else if (setting->Data[0] == 0x1)

    58                 {

    59                     Debug::WriteLine(L"POWERBROADCAST: Monitor Power On");

    60                     OnMonitorPowerOn();

    61                 }

    62             }

    63         }

    64     }

    66     ///

    67     void SettingNotifier::OnMonitorPowerOn::add(PowerManagerDelegate^ d)

    68     {

    69         iMonitorPowerOnDelegate += d;

    70         iMonitorPowerObserverCount++;

    71         //iMonitorPowerOnDelegate->GetInvocationList()->GetLength(0)

    72         if (iMonitorPowerObserverCount == 1)

    73         {

    74             //Register for monitor power notifications

    75             iMonitorPowerHandle=RegisterPowerSettingNotification(&GUID_MONITOR_POWER_ON);

    76         }

    78     }

    80     ///

    81     void SettingNotifier::OnMonitorPowerOn::remove(PowerManagerDelegate^ d)

    82     {

    83         iMonitorPowerOnDelegate -= d;

    84         iMonitorPowerObserverCount--;

    85         if (iMonitorPowerObserverCount==0)

    86         {

    87             //Unregister from corresponding power setting notification

    88             UnregisterPowerSettingNotification(iMonitorPowerHandle);

    89         }

    90     }

    92     //

    93     void SettingNotifier::OnMonitorPowerOn::raise()

    94     {

    95         if (iMonitorPowerOnDelegate != nullptr)

    96         {

    97             iMonitorPowerOnDelegate->Invoke();

    98         }

    99     }

   101     ///

   102     void SettingNotifier::OnMonitorPowerOff::add(PowerManagerDelegate^ d)

   103     {

   104         iMonitorPowerOffDelegate += d;

   105         iMonitorPowerObserverCount++;

   106         if (iMonitorPowerObserverCount == 1)

   107         {

   108             //Register for monitor power notifications

   109             iMonitorPowerHandle = RegisterPowerSettingNotification(&GUID_MONITOR_POWER_ON);

   110         }

   111     }

   113     ///

   114     void SettingNotifier::OnMonitorPowerOff::remove(PowerManagerDelegate^ d)

   115     {

   116         iMonitorPowerOffDelegate -= d;

   117         iMonitorPowerObserverCount--;

   118         if (iMonitorPowerObserverCount == 0)

   119         {

   120             //Unregister from corresponding power setting notification

   121             UnregisterPowerSettingNotification(iMonitorPowerHandle);

   122         }

   123     }

   125     //

   126     void SettingNotifier::OnMonitorPowerOff::raise()

   127     {

   128         if (iMonitorPowerOffDelegate != nullptr)

   129         {

   130             iMonitorPowerOffDelegate->Invoke();

   131         }

   132     }

   136 }

author	Stephane Lenclud
	Mon, 22 Aug 2016 13:20:54 +0200
changeset 252	59ea5cb46258
parent 160	de942d321cfb
permissions	-rw-r--r--