text: ﻿// Copyright (c) Microsoft Corporation. All rights reserved.
  // Licensed under the MIT License.
  
  #pragma once
  #include "INarratorAnnouncementHost.h"
  
  // Declaration of the LiveRegionHost class.
  // This class announces NarratorAnnouncements using the LiveRegionChanged event.
  // This event is unreliable and should be deprecated in favor of the new
  // RaiseNotification API in RS3.
  
  namespace CalculatorApp::ViewModel::Common::Automation
  {
      // This class exists so that the app can run on RS2 and use LiveRegions
      // to host notifications on those builds.
      // When the app switches to min version RS3, this class can be removed
      // and the app will switch to using the Notification API.
      // TODO - MSFT 12735088
  public
      ref class LiveRegionHost sealed : public INarratorAnnouncementHost
      {
      public:
          LiveRegionHost();
  
          virtual bool IsHostAvailable();
          virtual INarratorAnnouncementHost ^ MakeHost();
  
          virtual void Announce(NarratorAnnouncement ^ announcement);
  
      private:
          Windows::UI::Xaml::UIElement ^ m_host;
      };
  }
  