// Copyright (c) The NodeRT Contributors
// All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the ""License""); you may
// not use this file except in compliance with the License. You may obtain a
// copy of the License at http://www.apache.org/licenses/LICENSE-2.0
//
// THIS CODE IS PROVIDED ON AN  *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS
// OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY
// IMPLIED WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
// MERCHANTABLITY OR NON-INFRINGEMENT.
//
// See the Apache Version 2.0 License for specific language governing permissions
// and limitations under the License.

// TODO: Verify that this is is still needed..
#define NTDDI_VERSION 0x06010000

#include <v8.h>
#include "nan.h"
#include <string>
#include <ppltasks.h>
#include "CollectionsConverter.h"
#include "CollectionsWrap.h"
#include "node-async.h"
#include "NodeRtUtils.h"
#include "OpaqueWrapper.h"
#include "WrapperBase.h"

#using <Windows.WinMD>

// this undefs fixes the issues of compiling Windows.Data.Json, Windows.Storag.FileProperties, and Windows.Stroage.Search
// Some of the node header files brings windows definitions with the same names as some of the WinRT methods
#undef DocumentProperties
#undef GetObject
#undef CreateEvent
#undef FindText
#undef SendMessage

const char* REGISTRATION_TOKEN_MAP_PROPERTY_NAME = "__registrationTokenMap__";

using v8::Array;
using v8::String;
using v8::Value;
using v8::Boolean;
using v8::Integer;
using v8::FunctionTemplate;
using v8::Object;
using v8::Local;
using v8::Function;
using v8::Date;
using v8::Number;
using v8::PropertyAttribute;
using v8::Primitive;
using Nan::HandleScope;
using Nan::Persistent;
using Nan::Undefined;
using Nan::True;
using Nan::False;
using Nan::Null;
using Nan::MaybeLocal;
using Nan::EscapableHandleScope;
using Nan::HandleScope;
using Nan::TryCatch;
using namespace concurrency;

namespace NodeRT { namespace Windows { namespace Graphics { namespace Capture { 
  v8::Local<v8::Value> WrapDirect3D11CaptureFrame(::Windows::Graphics::Capture::Direct3D11CaptureFrame^ wintRtInstance);
  ::Windows::Graphics::Capture::Direct3D11CaptureFrame^ UnwrapDirect3D11CaptureFrame(Local<Value> value);
  
  v8::Local<v8::Value> WrapDirect3D11CaptureFramePool(::Windows::Graphics::Capture::Direct3D11CaptureFramePool^ wintRtInstance);
  ::Windows::Graphics::Capture::Direct3D11CaptureFramePool^ UnwrapDirect3D11CaptureFramePool(Local<Value> value);
  
  v8::Local<v8::Value> WrapGraphicsCaptureAccess(::Windows::Graphics::Capture::GraphicsCaptureAccess^ wintRtInstance);
  ::Windows::Graphics::Capture::GraphicsCaptureAccess^ UnwrapGraphicsCaptureAccess(Local<Value> value);
  
  v8::Local<v8::Value> WrapGraphicsCaptureItem(::Windows::Graphics::Capture::GraphicsCaptureItem^ wintRtInstance);
  ::Windows::Graphics::Capture::GraphicsCaptureItem^ UnwrapGraphicsCaptureItem(Local<Value> value);
  
  v8::Local<v8::Value> WrapGraphicsCapturePicker(::Windows::Graphics::Capture::GraphicsCapturePicker^ wintRtInstance);
  ::Windows::Graphics::Capture::GraphicsCapturePicker^ UnwrapGraphicsCapturePicker(Local<Value> value);
  
  v8::Local<v8::Value> WrapGraphicsCaptureSession(::Windows::Graphics::Capture::GraphicsCaptureSession^ wintRtInstance);
  ::Windows::Graphics::Capture::GraphicsCaptureSession^ UnwrapGraphicsCaptureSession(Local<Value> value);
  



  static void InitGraphicsCaptureAccessKindEnum(const Local<Object> exports) {
    HandleScope scope;

    Local<Object> enumObject = Nan::New<Object>();

    Nan::Set(exports, Nan::New<String>("GraphicsCaptureAccessKind").ToLocalChecked(), enumObject);
    Nan::Set(enumObject, Nan::New<String>("borderless").ToLocalChecked(), Nan::New<Integer>(static_cast<int>(::Windows::Graphics::Capture::GraphicsCaptureAccessKind::Borderless)));
    Nan::Set(enumObject, Nan::New<String>("programmatic").ToLocalChecked(), Nan::New<Integer>(static_cast<int>(::Windows::Graphics::Capture::GraphicsCaptureAccessKind::Programmatic)));
  }


  static bool IsSizeInt32JsObject(Local<Value> value) {
    if (!value->IsObject()) {
      return false;
    }

    Local<String> symbol;
    Local<Object> obj = Nan::To<Object>(value).ToLocalChecked();

    symbol = Nan::New<String>("width").ToLocalChecked();
    if (Nan::Has(obj, symbol).FromMaybe(false)) {
      if (!Nan::Get(obj,symbol).ToLocalChecked()->IsInt32()) {
        return false;
      }
    }
    
    symbol = Nan::New<String>("height").ToLocalChecked();
    if (Nan::Has(obj, symbol).FromMaybe(false)) {
      if (!Nan::Get(obj,symbol).ToLocalChecked()->IsInt32()) {
        return false;
      }
    }
    
    return true;
  }

  ::Windows::Graphics::SizeInt32 SizeInt32FromJsObject(Local<Value> value) {
    HandleScope scope;
    ::Windows::Graphics::SizeInt32 returnValue;

    if (!value->IsObject()) {
      Nan::ThrowError(Nan::TypeError(NodeRT::Utils::NewString(L"Unexpected type, expected an object")));
      return returnValue;
    }

    Local<Object> obj = Nan::To<Object>(value).ToLocalChecked();
    Local<String> symbol;

    symbol = Nan::New<String>("width").ToLocalChecked();
    if (Nan::Has(obj, symbol).FromMaybe(false)) {
      returnValue.Width = static_cast<int>(Nan::To<int32_t>(Nan::Get(obj,symbol).ToLocalChecked()).FromMaybe(0));
    }
    
    symbol = Nan::New<String>("height").ToLocalChecked();
    if (Nan::Has(obj, symbol).FromMaybe(false)) {
      returnValue.Height = static_cast<int>(Nan::To<int32_t>(Nan::Get(obj,symbol).ToLocalChecked()).FromMaybe(0));
    }
    
    return returnValue;
  }

  Local<Value> SizeInt32ToJsObject(::Windows::Graphics::SizeInt32 value) {
    EscapableHandleScope scope;

    Local<Object> obj = Nan::New<Object>();

    Nan::Set(obj, Nan::New<String>("width").ToLocalChecked(), Nan::New<Integer>(value.Width));
    Nan::Set(obj, Nan::New<String>("height").ToLocalChecked(), Nan::New<Integer>(value.Height));

    return scope.Escape(obj);
  }
  static bool IsWindowIdJsObject(Local<Value> value) {
    if (!value->IsObject()) {
      return false;
    }

    Local<String> symbol;
    Local<Object> obj = Nan::To<Object>(value).ToLocalChecked();

    symbol = Nan::New<String>("value").ToLocalChecked();
    if (Nan::Has(obj, symbol).FromMaybe(false)) {
      if (!Nan::Get(obj,symbol).ToLocalChecked()->IsNumber()) {
        return false;
      }
    }
    
    return true;
  }

  ::Windows::UI::WindowId WindowIdFromJsObject(Local<Value> value) {
    HandleScope scope;
    ::Windows::UI::WindowId returnValue;

    if (!value->IsObject()) {
      Nan::ThrowError(Nan::TypeError(NodeRT::Utils::NewString(L"Unexpected type, expected an object")));
      return returnValue;
    }

    Local<Object> obj = Nan::To<Object>(value).ToLocalChecked();
    Local<String> symbol;

    symbol = Nan::New<String>("value").ToLocalChecked();
    if (Nan::Has(obj, symbol).FromMaybe(false)) {
      returnValue.Value = static_cast<unsigned __int64>(Nan::To<int64_t>(Nan::Get(obj,symbol).ToLocalChecked()).FromMaybe(0));
    }
    
    return returnValue;
  }

  Local<Value> WindowIdToJsObject(::Windows::UI::WindowId value) {
    EscapableHandleScope scope;

    Local<Object> obj = Nan::New<Object>();

    Nan::Set(obj, Nan::New<String>("value").ToLocalChecked(), Nan::New<Number>(static_cast<double>(value.Value)));

    return scope.Escape(obj);
  }
  static bool IsDisplayIdJsObject(Local<Value> value) {
    if (!value->IsObject()) {
      return false;
    }

    Local<String> symbol;
    Local<Object> obj = Nan::To<Object>(value).ToLocalChecked();

    symbol = Nan::New<String>("value").ToLocalChecked();
    if (Nan::Has(obj, symbol).FromMaybe(false)) {
      if (!Nan::Get(obj,symbol).ToLocalChecked()->IsNumber()) {
        return false;
      }
    }
    
    return true;
  }

  ::Windows::Graphics::DisplayId DisplayIdFromJsObject(Local<Value> value) {
    HandleScope scope;
    ::Windows::Graphics::DisplayId returnValue;

    if (!value->IsObject()) {
      Nan::ThrowError(Nan::TypeError(NodeRT::Utils::NewString(L"Unexpected type, expected an object")));
      return returnValue;
    }

    Local<Object> obj = Nan::To<Object>(value).ToLocalChecked();
    Local<String> symbol;

    symbol = Nan::New<String>("value").ToLocalChecked();
    if (Nan::Has(obj, symbol).FromMaybe(false)) {
      returnValue.Value = static_cast<unsigned __int64>(Nan::To<int64_t>(Nan::Get(obj,symbol).ToLocalChecked()).FromMaybe(0));
    }
    
    return returnValue;
  }

  Local<Value> DisplayIdToJsObject(::Windows::Graphics::DisplayId value) {
    EscapableHandleScope scope;

    Local<Object> obj = Nan::New<Object>();

    Nan::Set(obj, Nan::New<String>("value").ToLocalChecked(), Nan::New<Number>(static_cast<double>(value.Value)));

    return scope.Escape(obj);
  }

  class Direct3D11CaptureFrame : public WrapperBase {
    public:
      
      static void Init(const Local<Object> exports) {
        HandleScope scope;

        Local<FunctionTemplate> localRef = Nan::New<FunctionTemplate>(New);
        s_constructorTemplate.Reset(localRef);
        localRef->SetClassName(Nan::New<String>("Direct3D11CaptureFrame").ToLocalChecked());
        localRef->InstanceTemplate()->SetInternalFieldCount(1);


          
            Nan::SetPrototypeMethod(localRef, "close", Close);
          



          
            Nan::SetAccessor(localRef->PrototypeTemplate(), Nan::New<String>("contentSize").ToLocalChecked(), ContentSizeGetter);
            Nan::SetAccessor(localRef->PrototypeTemplate(), Nan::New<String>("surface").ToLocalChecked(), SurfaceGetter);
            Nan::SetAccessor(localRef->PrototypeTemplate(), Nan::New<String>("systemRelativeTime").ToLocalChecked(), SystemRelativeTimeGetter);

        Local<Object> constructor = Nan::To<Object>(Nan::GetFunction(localRef).ToLocalChecked()).ToLocalChecked();
        Nan::SetMethod(constructor, "castFrom", CastFrom);



        Nan::Set(exports, Nan::New<String>("Direct3D11CaptureFrame").ToLocalChecked(), constructor);
      }

      virtual ::Platform::Object^ GetObjectInstance() const override {
        return _instance;
      }

    private:

      Direct3D11CaptureFrame(::Windows::Graphics::Capture::Direct3D11CaptureFrame^ instance) {
        _instance = instance;
      }

      
    static void New(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      Local<FunctionTemplate> localRef = Nan::New<FunctionTemplate>(s_constructorTemplate);

      // in case the constructor was called without the new operator
      if (!localRef->HasInstance(info.This())) {
        if (info.Length() > 0) {
          std::unique_ptr<Local<Value> []> constructorArgs(new Local<Value>[info.Length()]);

          Local<Value> *argsPtr = constructorArgs.get();
          for (int i = 0; i < info.Length(); i++) {
            argsPtr[i] = info[i];
          }

          MaybeLocal<Object> res = Nan::NewInstance(Nan::GetFunction(localRef).ToLocalChecked(), info.Length(), constructorArgs.get());
          if (res.IsEmpty()) {
            return;
          }

          info.GetReturnValue().Set(res.ToLocalChecked());
          return;
        } else {
          MaybeLocal<Object> res = Nan::NewInstance(Nan::GetFunction(localRef).ToLocalChecked(), info.Length(), nullptr);

          if (res.IsEmpty()) {
            return;
          }

          info.GetReturnValue().Set(res.ToLocalChecked());
          return;
        }
      }

      ::Windows::Graphics::Capture::Direct3D11CaptureFrame^ winRtInstance;


      if (info.Length() == 1 && OpaqueWrapper::IsOpaqueWrapper(info[0]) &&
        NodeRT::Utils::IsWinRtWrapperOf<::Windows::Graphics::Capture::Direct3D11CaptureFrame^>(info[0])) {
        try {
          winRtInstance = (::Windows::Graphics::Capture::Direct3D11CaptureFrame^) NodeRT::Utils::GetObjectInstance(info[0]);
        } catch (Platform::Exception ^exception) {
          NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
          return;
        }
      }
 else {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Invalid arguments, no suitable constructor found")));
        return;
      }

      NodeRT::Utils::SetHiddenValue(info.This(), Nan::New<String>("__winRtInstance__").ToLocalChecked(), True());

      Direct3D11CaptureFrame *wrapperInstance = new Direct3D11CaptureFrame(winRtInstance);
      wrapperInstance->Wrap(info.This());

      info.GetReturnValue().Set(info.This());
    }


      
    static void CastFrom(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;
      if (info.Length() < 1 || !NodeRT::Utils::IsWinRtWrapperOf<::Windows::Graphics::Capture::Direct3D11CaptureFrame^>(info[0])) {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Invalid arguments, no object provided, or given object could not be casted to requested type")));
        return;
      }

      ::Windows::Graphics::Capture::Direct3D11CaptureFrame^ winRtInstance;
      try {
        winRtInstance = (::Windows::Graphics::Capture::Direct3D11CaptureFrame^) NodeRT::Utils::GetObjectInstance(info[0]);
      } catch (Platform::Exception ^exception) {
        NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
        return;
      }

      info.GetReturnValue().Set(WrapDirect3D11CaptureFrame(winRtInstance));
    }



    static void Close(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      if (!NodeRT::Utils::IsWinRtWrapperOf<::Windows::Graphics::Capture::Direct3D11CaptureFrame^>(info.This())) {
        return;
      }

      Direct3D11CaptureFrame *wrapper = Direct3D11CaptureFrame::Unwrap<Direct3D11CaptureFrame>(info.This());

      if (info.Length() == 0) {
        try {
          delete wrapper->_instance;
          wrapper->_instance = nullptr;
          return;
        } catch (Platform::Exception ^exception) {
          NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
          return;
        }
      } else {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Bad arguments: no suitable overload found")));
        return;
      }
    }



    static void ContentSizeGetter(Local<String> property, const Nan::PropertyCallbackInfo<v8::Value> &info) {
      HandleScope scope;

      if (!NodeRT::Utils::IsWinRtWrapperOf<::Windows::Graphics::Capture::Direct3D11CaptureFrame^>(info.This())) {
        return;
      }

      Direct3D11CaptureFrame *wrapper = Direct3D11CaptureFrame::Unwrap<Direct3D11CaptureFrame>(info.This());

      try  {
        ::Windows::Graphics::SizeInt32 result = wrapper->_instance->ContentSize;
        info.GetReturnValue().Set(SizeInt32ToJsObject(result));
        return;
      } catch (Platform::Exception ^exception) {
        NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
        return;
      }
    }
      
    static void SurfaceGetter(Local<String> property, const Nan::PropertyCallbackInfo<v8::Value> &info) {
      HandleScope scope;

      if (!NodeRT::Utils::IsWinRtWrapperOf<::Windows::Graphics::Capture::Direct3D11CaptureFrame^>(info.This())) {
        return;
      }

      Direct3D11CaptureFrame *wrapper = Direct3D11CaptureFrame::Unwrap<Direct3D11CaptureFrame>(info.This());

      try  {
        ::Windows::Graphics::DirectX::Direct3D11::IDirect3DSurface^ result = wrapper->_instance->Surface;
        info.GetReturnValue().Set(NodeRT::Utils::CreateExternalWinRTObject("Windows.Graphics.DirectX.Direct3D11", "IDirect3DSurface", result));
        return;
      } catch (Platform::Exception ^exception) {
        NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
        return;
      }
    }
      
    static void SystemRelativeTimeGetter(Local<String> property, const Nan::PropertyCallbackInfo<v8::Value> &info) {
      HandleScope scope;

      if (!NodeRT::Utils::IsWinRtWrapperOf<::Windows::Graphics::Capture::Direct3D11CaptureFrame^>(info.This())) {
        return;
      }

      Direct3D11CaptureFrame *wrapper = Direct3D11CaptureFrame::Unwrap<Direct3D11CaptureFrame>(info.This());

      try  {
        ::Windows::Foundation::TimeSpan result = wrapper->_instance->SystemRelativeTime;
        info.GetReturnValue().Set(Nan::New<Number>(result.Duration/10000.0));
        return;
      } catch (Platform::Exception ^exception) {
        NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
        return;
      }
    }
      


    private:
      ::Windows::Graphics::Capture::Direct3D11CaptureFrame^ _instance;
      static Persistent<FunctionTemplate> s_constructorTemplate;

      friend v8::Local<v8::Value> WrapDirect3D11CaptureFrame(::Windows::Graphics::Capture::Direct3D11CaptureFrame^ wintRtInstance);
      friend ::Windows::Graphics::Capture::Direct3D11CaptureFrame^ UnwrapDirect3D11CaptureFrame(Local<Value> value);
  };

  Persistent<FunctionTemplate> Direct3D11CaptureFrame::s_constructorTemplate;

  v8::Local<v8::Value> WrapDirect3D11CaptureFrame(::Windows::Graphics::Capture::Direct3D11CaptureFrame^ winRtInstance) {
    EscapableHandleScope scope;

    if (winRtInstance == nullptr) {
      return scope.Escape(Undefined());
    }

    Local<Value> opaqueWrapper = CreateOpaqueWrapper(winRtInstance);
    Local<Value> args[] = {opaqueWrapper};
    Local<FunctionTemplate> localRef = Nan::New<FunctionTemplate>(Direct3D11CaptureFrame::s_constructorTemplate);
    return scope.Escape(Nan::NewInstance(Nan::GetFunction(localRef).ToLocalChecked(),_countof(args), args).ToLocalChecked());
  }

  ::Windows::Graphics::Capture::Direct3D11CaptureFrame^ UnwrapDirect3D11CaptureFrame(Local<Value> value) {
     return Direct3D11CaptureFrame::Unwrap<Direct3D11CaptureFrame>(Nan::To<Object>(value).ToLocalChecked())->_instance;
  }

  void InitDirect3D11CaptureFrame(Local<Object> exports) {
    Direct3D11CaptureFrame::Init(exports);
  }

  class Direct3D11CaptureFramePool : public WrapperBase {
    public:
      
      static void Init(const Local<Object> exports) {
        HandleScope scope;

        Local<FunctionTemplate> localRef = Nan::New<FunctionTemplate>(New);
        s_constructorTemplate.Reset(localRef);
        localRef->SetClassName(Nan::New<String>("Direct3D11CaptureFramePool").ToLocalChecked());
        localRef->InstanceTemplate()->SetInternalFieldCount(1);


          
            Nan::SetPrototypeMethod(localRef, "recreate", Recreate);
            Nan::SetPrototypeMethod(localRef, "tryGetNextFrame", TryGetNextFrame);
            Nan::SetPrototypeMethod(localRef, "createCaptureSession", CreateCaptureSession);
            Nan::SetPrototypeMethod(localRef, "close", Close);
          


          
          Nan::SetPrototypeMethod(localRef,"addListener", AddListener);
          Nan::SetPrototypeMethod(localRef,"on", AddListener);
          Nan::SetPrototypeMethod(localRef,"removeListener", RemoveListener);
          Nan::SetPrototypeMethod(localRef, "off", RemoveListener);

          
            Nan::SetAccessor(localRef->PrototypeTemplate(), Nan::New<String>("dispatcherQueue").ToLocalChecked(), DispatcherQueueGetter);

        Local<Object> constructor = Nan::To<Object>(Nan::GetFunction(localRef).ToLocalChecked()).ToLocalChecked();
        Nan::SetMethod(constructor, "castFrom", CastFrom);

        Nan::SetMethod(constructor, "createFreeThreaded", CreateFreeThreaded);
        Nan::SetMethod(constructor, "create", Create);


        Nan::Set(exports, Nan::New<String>("Direct3D11CaptureFramePool").ToLocalChecked(), constructor);
      }

      virtual ::Platform::Object^ GetObjectInstance() const override {
        return _instance;
      }

    private:

      Direct3D11CaptureFramePool(::Windows::Graphics::Capture::Direct3D11CaptureFramePool^ instance) {
        _instance = instance;
      }

      
    static void New(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      Local<FunctionTemplate> localRef = Nan::New<FunctionTemplate>(s_constructorTemplate);

      // in case the constructor was called without the new operator
      if (!localRef->HasInstance(info.This())) {
        if (info.Length() > 0) {
          std::unique_ptr<Local<Value> []> constructorArgs(new Local<Value>[info.Length()]);

          Local<Value> *argsPtr = constructorArgs.get();
          for (int i = 0; i < info.Length(); i++) {
            argsPtr[i] = info[i];
          }

          MaybeLocal<Object> res = Nan::NewInstance(Nan::GetFunction(localRef).ToLocalChecked(), info.Length(), constructorArgs.get());
          if (res.IsEmpty()) {
            return;
          }

          info.GetReturnValue().Set(res.ToLocalChecked());
          return;
        } else {
          MaybeLocal<Object> res = Nan::NewInstance(Nan::GetFunction(localRef).ToLocalChecked(), info.Length(), nullptr);

          if (res.IsEmpty()) {
            return;
          }

          info.GetReturnValue().Set(res.ToLocalChecked());
          return;
        }
      }

      ::Windows::Graphics::Capture::Direct3D11CaptureFramePool^ winRtInstance;


      if (info.Length() == 1 && OpaqueWrapper::IsOpaqueWrapper(info[0]) &&
        NodeRT::Utils::IsWinRtWrapperOf<::Windows::Graphics::Capture::Direct3D11CaptureFramePool^>(info[0])) {
        try {
          winRtInstance = (::Windows::Graphics::Capture::Direct3D11CaptureFramePool^) NodeRT::Utils::GetObjectInstance(info[0]);
        } catch (Platform::Exception ^exception) {
          NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
          return;
        }
      }
 else {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Invalid arguments, no suitable constructor found")));
        return;
      }

      NodeRT::Utils::SetHiddenValue(info.This(), Nan::New<String>("__winRtInstance__").ToLocalChecked(), True());

      Direct3D11CaptureFramePool *wrapperInstance = new Direct3D11CaptureFramePool(winRtInstance);
      wrapperInstance->Wrap(info.This());

      info.GetReturnValue().Set(info.This());
    }


      
    static void CastFrom(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;
      if (info.Length() < 1 || !NodeRT::Utils::IsWinRtWrapperOf<::Windows::Graphics::Capture::Direct3D11CaptureFramePool^>(info[0])) {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Invalid arguments, no object provided, or given object could not be casted to requested type")));
        return;
      }

      ::Windows::Graphics::Capture::Direct3D11CaptureFramePool^ winRtInstance;
      try {
        winRtInstance = (::Windows::Graphics::Capture::Direct3D11CaptureFramePool^) NodeRT::Utils::GetObjectInstance(info[0]);
      } catch (Platform::Exception ^exception) {
        NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
        return;
      }

      info.GetReturnValue().Set(WrapDirect3D11CaptureFramePool(winRtInstance));
    }


    static void Recreate(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      if (!NodeRT::Utils::IsWinRtWrapperOf<::Windows::Graphics::Capture::Direct3D11CaptureFramePool^>(info.This())) {
        return;
      }

      Direct3D11CaptureFramePool *wrapper = Direct3D11CaptureFramePool::Unwrap<Direct3D11CaptureFramePool>(info.This());

      if (info.Length() == 4
        && NodeRT::Utils::IsWinRtWrapperOf<::Windows::Graphics::DirectX::Direct3D11::IDirect3DDevice^>(info[0])
        && info[1]->IsInt32()
        && info[2]->IsInt32()
        && IsSizeInt32JsObject(info[3]))
      {
        try
        {
          ::Windows::Graphics::DirectX::Direct3D11::IDirect3DDevice^ arg0 = dynamic_cast<::Windows::Graphics::DirectX::Direct3D11::IDirect3DDevice^>(NodeRT::Utils::GetObjectInstance(info[0]));
          ::Windows::Graphics::DirectX::DirectXPixelFormat arg1 = static_cast<::Windows::Graphics::DirectX::DirectXPixelFormat>(Nan::To<int32_t>(info[1]).FromMaybe(0));
          int arg2 = static_cast<int>(Nan::To<int32_t>(info[2]).FromMaybe(0));
          ::Windows::Graphics::SizeInt32 arg3 = SizeInt32FromJsObject(info[3]);
          
          wrapper->_instance->Recreate(arg0, arg1, arg2, arg3);
          return;
        } catch (Platform::Exception ^exception) {
          NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
          return;
        }
      }
 else {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Bad arguments: no suitable overload found")));
        return;
      }
    }
    static void TryGetNextFrame(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      if (!NodeRT::Utils::IsWinRtWrapperOf<::Windows::Graphics::Capture::Direct3D11CaptureFramePool^>(info.This())) {
        return;
      }

      Direct3D11CaptureFramePool *wrapper = Direct3D11CaptureFramePool::Unwrap<Direct3D11CaptureFramePool>(info.This());

      if (info.Length() == 0)
      {
        try
        {
          ::Windows::Graphics::Capture::Direct3D11CaptureFrame^ result;
          result = wrapper->_instance->TryGetNextFrame();
          info.GetReturnValue().Set(WrapDirect3D11CaptureFrame(result));
          return;
        } catch (Platform::Exception ^exception) {
          NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
          return;
        }
      }
 else {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Bad arguments: no suitable overload found")));
        return;
      }
    }
    static void CreateCaptureSession(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      if (!NodeRT::Utils::IsWinRtWrapperOf<::Windows::Graphics::Capture::Direct3D11CaptureFramePool^>(info.This())) {
        return;
      }

      Direct3D11CaptureFramePool *wrapper = Direct3D11CaptureFramePool::Unwrap<Direct3D11CaptureFramePool>(info.This());

      if (info.Length() == 1
        && NodeRT::Utils::IsWinRtWrapperOf<::Windows::Graphics::Capture::GraphicsCaptureItem^>(info[0]))
      {
        try
        {
          ::Windows::Graphics::Capture::GraphicsCaptureItem^ arg0 = UnwrapGraphicsCaptureItem(info[0]);
          
          ::Windows::Graphics::Capture::GraphicsCaptureSession^ result;
          result = wrapper->_instance->CreateCaptureSession(arg0);
          info.GetReturnValue().Set(WrapGraphicsCaptureSession(result));
          return;
        } catch (Platform::Exception ^exception) {
          NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
          return;
        }
      }
 else {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Bad arguments: no suitable overload found")));
        return;
      }
    }

    static void Close(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      if (!NodeRT::Utils::IsWinRtWrapperOf<::Windows::Graphics::Capture::Direct3D11CaptureFramePool^>(info.This())) {
        return;
      }

      Direct3D11CaptureFramePool *wrapper = Direct3D11CaptureFramePool::Unwrap<Direct3D11CaptureFramePool>(info.This());

      if (info.Length() == 0) {
        try {
          delete wrapper->_instance;
          wrapper->_instance = nullptr;
          return;
        } catch (Platform::Exception ^exception) {
          NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
          return;
        }
      } else {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Bad arguments: no suitable overload found")));
        return;
      }
    }



    static void CreateFreeThreaded(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      if (info.Length() == 4
        && NodeRT::Utils::IsWinRtWrapperOf<::Windows::Graphics::DirectX::Direct3D11::IDirect3DDevice^>(info[0])
        && info[1]->IsInt32()
        && info[2]->IsInt32()
        && IsSizeInt32JsObject(info[3]))
      {
        try
        {
          ::Windows::Graphics::DirectX::Direct3D11::IDirect3DDevice^ arg0 = dynamic_cast<::Windows::Graphics::DirectX::Direct3D11::IDirect3DDevice^>(NodeRT::Utils::GetObjectInstance(info[0]));
          ::Windows::Graphics::DirectX::DirectXPixelFormat arg1 = static_cast<::Windows::Graphics::DirectX::DirectXPixelFormat>(Nan::To<int32_t>(info[1]).FromMaybe(0));
          int arg2 = static_cast<int>(Nan::To<int32_t>(info[2]).FromMaybe(0));
          ::Windows::Graphics::SizeInt32 arg3 = SizeInt32FromJsObject(info[3]);
          
          ::Windows::Graphics::Capture::Direct3D11CaptureFramePool^ result;
          result = ::Windows::Graphics::Capture::Direct3D11CaptureFramePool::CreateFreeThreaded(arg0, arg1, arg2, arg3);
          info.GetReturnValue().Set(WrapDirect3D11CaptureFramePool(result));
          return;
        }
        catch (Platform::Exception ^exception)
        {
          NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
          return;
        }
      }
 else  {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Bad arguments: no suitable overload found")));
        return;
      }
    }

    static void Create(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      if (info.Length() == 4
        && NodeRT::Utils::IsWinRtWrapperOf<::Windows::Graphics::DirectX::Direct3D11::IDirect3DDevice^>(info[0])
        && info[1]->IsInt32()
        && info[2]->IsInt32()
        && IsSizeInt32JsObject(info[3]))
      {
        try
        {
          ::Windows::Graphics::DirectX::Direct3D11::IDirect3DDevice^ arg0 = dynamic_cast<::Windows::Graphics::DirectX::Direct3D11::IDirect3DDevice^>(NodeRT::Utils::GetObjectInstance(info[0]));
          ::Windows::Graphics::DirectX::DirectXPixelFormat arg1 = static_cast<::Windows::Graphics::DirectX::DirectXPixelFormat>(Nan::To<int32_t>(info[1]).FromMaybe(0));
          int arg2 = static_cast<int>(Nan::To<int32_t>(info[2]).FromMaybe(0));
          ::Windows::Graphics::SizeInt32 arg3 = SizeInt32FromJsObject(info[3]);
          
          ::Windows::Graphics::Capture::Direct3D11CaptureFramePool^ result;
          result = ::Windows::Graphics::Capture::Direct3D11CaptureFramePool::Create(arg0, arg1, arg2, arg3);
          info.GetReturnValue().Set(WrapDirect3D11CaptureFramePool(result));
          return;
        }
        catch (Platform::Exception ^exception)
        {
          NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
          return;
        }
      }
 else  {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Bad arguments: no suitable overload found")));
        return;
      }
    }

    static void DispatcherQueueGetter(Local<String> property, const Nan::PropertyCallbackInfo<v8::Value> &info) {
      HandleScope scope;

      if (!NodeRT::Utils::IsWinRtWrapperOf<::Windows::Graphics::Capture::Direct3D11CaptureFramePool^>(info.This())) {
        return;
      }

      Direct3D11CaptureFramePool *wrapper = Direct3D11CaptureFramePool::Unwrap<Direct3D11CaptureFramePool>(info.This());

      try  {
        ::Windows::System::DispatcherQueue^ result = wrapper->_instance->DispatcherQueue;
        info.GetReturnValue().Set(NodeRT::Utils::CreateExternalWinRTObject("Windows.System", "DispatcherQueue", result));
        return;
      } catch (Platform::Exception ^exception) {
        NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
        return;
      }
    }
      


    static void AddListener(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      if (info.Length() < 2 || !info[0]->IsString() || !info[1]->IsFunction()) {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"wrong arguments, expected arguments are eventName(string),callback(function)")));
        return;
      }

      String::Value eventName(v8::Isolate::GetCurrent(), info[0]);
      auto str = *eventName;

      Local<Function> callback = info[1].As<Function>();

      ::Windows::Foundation::EventRegistrationToken registrationToken;
      if (NodeRT::Utils::CaseInsenstiveEquals(L"frameArrived", str))
      {
        if (!NodeRT::Utils::IsWinRtWrapperOf<::Windows::Graphics::Capture::Direct3D11CaptureFramePool^>(info.This()))
        {
          Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"The caller of this method isn't of the expected type or internal WinRt object was disposed")));
      return;
        }
        Direct3D11CaptureFramePool *wrapper = Direct3D11CaptureFramePool::Unwrap<Direct3D11CaptureFramePool>(info.This());
      
        try {
          Persistent<Object>* perstPtr = new Persistent<Object>();
          perstPtr->Reset(NodeRT::Utils::CreateCallbackObjectInDomain(callback));
          std::shared_ptr<Persistent<Object>> callbackObjPtr(perstPtr,
            [] (Persistent<Object> *ptr ) {
              NodeUtils::Async::RunOnMain([ptr]() {
                ptr->Reset();
                delete ptr;
            });
          });

          registrationToken = wrapper->_instance->FrameArrived::add(
            ref new ::Windows::Foundation::TypedEventHandler<::Windows::Graphics::Capture::Direct3D11CaptureFramePool^, ::Platform::Object^>(
            [callbackObjPtr](::Windows::Graphics::Capture::Direct3D11CaptureFramePool^ arg0, ::Platform::Object^ arg1) {
              NodeUtils::Async::RunOnMain([callbackObjPtr , arg0, arg1]() {
                HandleScope scope;


                Local<Value> wrappedArg0;
                Local<Value> wrappedArg1;

                {
                  TryCatch tryCatch;


                  wrappedArg0 = WrapDirect3D11CaptureFramePool(arg0);
                  wrappedArg1 = CreateOpaqueWrapper(arg1);


                  if (wrappedArg0.IsEmpty()) wrappedArg0 = Undefined();
                  if (wrappedArg1.IsEmpty()) wrappedArg1 = Undefined();
                }

                Local<Value> args[] = { wrappedArg0, wrappedArg1 };
                Local<Object> callbackObjLocalRef = Nan::New<Object>(*callbackObjPtr);
                NodeRT::Utils::CallCallbackInDomain(callbackObjLocalRef, _countof(args), args);
              });
            })
          );
        }
        catch (Platform::Exception ^exception) {
          NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
          return;
        }

      }
 else  {
        Nan::ThrowError(Nan::Error(String::Concat(v8::Isolate::GetCurrent(), NodeRT::Utils::NewString(L"given event name isn't supported: "), info[0].As<String>())));
        return;
      }

      Local<Value> tokenMapVal = NodeRT::Utils::GetHiddenValue(callback, Nan::New<String>(REGISTRATION_TOKEN_MAP_PROPERTY_NAME).ToLocalChecked());
      Local<Object> tokenMap;

      if (tokenMapVal.IsEmpty() || Nan::Equals(tokenMapVal, Undefined()).FromMaybe(false)) {
        tokenMap = Nan::New<Object>();
        NodeRT::Utils::SetHiddenValueWithObject(callback, Nan::New<String>(REGISTRATION_TOKEN_MAP_PROPERTY_NAME).ToLocalChecked(), tokenMap);
      } else {
        tokenMap = Nan::To<Object>(tokenMapVal).ToLocalChecked();
      }

      Nan::Set(tokenMap, info[0], CreateOpaqueWrapper(::Windows::Foundation::PropertyValue::CreateInt64(registrationToken.Value)));
    }

    static void RemoveListener(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      if (info.Length() < 2 || !info[0]->IsString() || !info[1]->IsFunction()) {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"wrong arguments, expected a string and a callback")));
        return;
      }

      String::Value eventName(v8::Isolate::GetCurrent(), info[0]);
      auto str = *eventName;

      if ((!NodeRT::Utils::CaseInsenstiveEquals(L"frameArrived", str))) {
        Nan::ThrowError(Nan::Error(String::Concat(v8::Isolate::GetCurrent(), NodeRT::Utils::NewString(L"given event name isn't supported: "), info[0].As<String>())));
        return;
      }

      Local<Function> callback = info[1].As<Function>();
      Local<Value> tokenMap = NodeRT::Utils::GetHiddenValue(callback, Nan::New<String>(REGISTRATION_TOKEN_MAP_PROPERTY_NAME).ToLocalChecked());

      if (tokenMap.IsEmpty() || Nan::Equals(tokenMap, Undefined()).FromMaybe(false)) {
        return;
      }

      Local<Value> opaqueWrapperObj =  Nan::Get(Nan::To<Object>(tokenMap).ToLocalChecked(), info[0]).ToLocalChecked();

      if (opaqueWrapperObj.IsEmpty() || Nan::Equals(opaqueWrapperObj,Undefined()).FromMaybe(false)) {
        return;
      }

      OpaqueWrapper *opaqueWrapper = OpaqueWrapper::Unwrap<OpaqueWrapper>(opaqueWrapperObj.As<Object>());

      long long tokenValue = (long long) opaqueWrapper->GetObjectInstance();
      ::Windows::Foundation::EventRegistrationToken registrationToken;
      registrationToken.Value = tokenValue;

      try  {
        if (NodeRT::Utils::CaseInsenstiveEquals(L"frameArrived", str)) {
          if (!NodeRT::Utils::IsWinRtWrapperOf<::Windows::Graphics::Capture::Direct3D11CaptureFramePool^>(info.This()))
          {
            Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"The caller of this method isn't of the expected type or internal WinRt object was disposed")));
            return;
          }
          Direct3D11CaptureFramePool *wrapper = Direct3D11CaptureFramePool::Unwrap<Direct3D11CaptureFramePool>(info.This());
          wrapper->_instance->FrameArrived::remove(registrationToken);
        }
      } catch (Platform::Exception ^exception) {
        NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
      }

      Nan::Delete(Nan::To<Object>(tokenMap).ToLocalChecked(), Nan::To<String>(info[0]).ToLocalChecked());
    }
    private:
      ::Windows::Graphics::Capture::Direct3D11CaptureFramePool^ _instance;
      static Persistent<FunctionTemplate> s_constructorTemplate;

      friend v8::Local<v8::Value> WrapDirect3D11CaptureFramePool(::Windows::Graphics::Capture::Direct3D11CaptureFramePool^ wintRtInstance);
      friend ::Windows::Graphics::Capture::Direct3D11CaptureFramePool^ UnwrapDirect3D11CaptureFramePool(Local<Value> value);
  };

  Persistent<FunctionTemplate> Direct3D11CaptureFramePool::s_constructorTemplate;

  v8::Local<v8::Value> WrapDirect3D11CaptureFramePool(::Windows::Graphics::Capture::Direct3D11CaptureFramePool^ winRtInstance) {
    EscapableHandleScope scope;

    if (winRtInstance == nullptr) {
      return scope.Escape(Undefined());
    }

    Local<Value> opaqueWrapper = CreateOpaqueWrapper(winRtInstance);
    Local<Value> args[] = {opaqueWrapper};
    Local<FunctionTemplate> localRef = Nan::New<FunctionTemplate>(Direct3D11CaptureFramePool::s_constructorTemplate);
    return scope.Escape(Nan::NewInstance(Nan::GetFunction(localRef).ToLocalChecked(),_countof(args), args).ToLocalChecked());
  }

  ::Windows::Graphics::Capture::Direct3D11CaptureFramePool^ UnwrapDirect3D11CaptureFramePool(Local<Value> value) {
     return Direct3D11CaptureFramePool::Unwrap<Direct3D11CaptureFramePool>(Nan::To<Object>(value).ToLocalChecked())->_instance;
  }

  void InitDirect3D11CaptureFramePool(Local<Object> exports) {
    Direct3D11CaptureFramePool::Init(exports);
  }

  class GraphicsCaptureAccess : public WrapperBase {
    public:
      
      static void Init(const Local<Object> exports) {
        HandleScope scope;

        Local<FunctionTemplate> localRef = Nan::New<FunctionTemplate>(New);
        s_constructorTemplate.Reset(localRef);
        localRef->SetClassName(Nan::New<String>("GraphicsCaptureAccess").ToLocalChecked());
        localRef->InstanceTemplate()->SetInternalFieldCount(1);

        Local<Function> func;
        Local<FunctionTemplate> funcTemplate;





        Local<Object> constructor = Nan::To<Object>(Nan::GetFunction(localRef).ToLocalChecked()).ToLocalChecked();
        Nan::SetMethod(constructor, "castFrom", CastFrom);

        func = Nan::GetFunction(Nan::New<FunctionTemplate>(RequestAccessAsync)).ToLocalChecked();
        Nan::Set(constructor, Nan::New<String>("requestAccessAsync").ToLocalChecked(), func);


        Nan::Set(exports, Nan::New<String>("GraphicsCaptureAccess").ToLocalChecked(), constructor);
      }

      virtual ::Platform::Object^ GetObjectInstance() const override {
        return _instance;
      }

    private:

      GraphicsCaptureAccess(::Windows::Graphics::Capture::GraphicsCaptureAccess^ instance) {
        _instance = instance;
      }

      
    static void New(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      Local<FunctionTemplate> localRef = Nan::New<FunctionTemplate>(s_constructorTemplate);

      // in case the constructor was called without the new operator
      if (!localRef->HasInstance(info.This())) {
        if (info.Length() > 0) {
          std::unique_ptr<Local<Value> []> constructorArgs(new Local<Value>[info.Length()]);

          Local<Value> *argsPtr = constructorArgs.get();
          for (int i = 0; i < info.Length(); i++) {
            argsPtr[i] = info[i];
          }

          MaybeLocal<Object> res = Nan::NewInstance(Nan::GetFunction(localRef).ToLocalChecked(), info.Length(), constructorArgs.get());
          if (res.IsEmpty()) {
            return;
          }

          info.GetReturnValue().Set(res.ToLocalChecked());
          return;
        } else {
          MaybeLocal<Object> res = Nan::NewInstance(Nan::GetFunction(localRef).ToLocalChecked(), info.Length(), nullptr);

          if (res.IsEmpty()) {
            return;
          }

          info.GetReturnValue().Set(res.ToLocalChecked());
          return;
        }
      }

      ::Windows::Graphics::Capture::GraphicsCaptureAccess^ winRtInstance;


      if (info.Length() == 1 && OpaqueWrapper::IsOpaqueWrapper(info[0]) &&
        NodeRT::Utils::IsWinRtWrapperOf<::Windows::Graphics::Capture::GraphicsCaptureAccess^>(info[0])) {
        try {
          winRtInstance = (::Windows::Graphics::Capture::GraphicsCaptureAccess^) NodeRT::Utils::GetObjectInstance(info[0]);
        } catch (Platform::Exception ^exception) {
          NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
          return;
        }
      }
 else {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Invalid arguments, no suitable constructor found")));
        return;
      }

      NodeRT::Utils::SetHiddenValue(info.This(), Nan::New<String>("__winRtInstance__").ToLocalChecked(), True());

      GraphicsCaptureAccess *wrapperInstance = new GraphicsCaptureAccess(winRtInstance);
      wrapperInstance->Wrap(info.This());

      info.GetReturnValue().Set(info.This());
    }


      
    static void CastFrom(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;
      if (info.Length() < 1 || !NodeRT::Utils::IsWinRtWrapperOf<::Windows::Graphics::Capture::GraphicsCaptureAccess^>(info[0])) {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Invalid arguments, no object provided, or given object could not be casted to requested type")));
        return;
      }

      ::Windows::Graphics::Capture::GraphicsCaptureAccess^ winRtInstance;
      try {
        winRtInstance = (::Windows::Graphics::Capture::GraphicsCaptureAccess^) NodeRT::Utils::GetObjectInstance(info[0]);
      } catch (Platform::Exception ^exception) {
        NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
        return;
      }

      info.GetReturnValue().Set(WrapGraphicsCaptureAccess(winRtInstance));
    }




    static void RequestAccessAsync(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      if (info.Length() == 0 || !info[info.Length() -1]->IsFunction()) {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Bad arguments: No callback was given")));
        return;
      }

      ::Windows::Foundation::IAsyncOperation<::Windows::Security::Authorization::AppCapabilityAccess::AppCapabilityAccessStatus>^ op;


      if (info.Length() == 2
          && info[0]->IsInt32())
      {
        try
        {
          ::Windows::Graphics::Capture::GraphicsCaptureAccessKind arg0 = static_cast<::Windows::Graphics::Capture::GraphicsCaptureAccessKind>(Nan::To<int32_t>(info[0]).FromMaybe(0));
            
          op = ::Windows::Graphics::Capture::GraphicsCaptureAccess::RequestAccessAsync(arg0);
        } catch (Platform::Exception ^exception) {
            NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
            return;
        }
      }
 else {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Bad arguments: no suitable overload found")));
        return;
      }

      auto opTask = create_task(op);
      uv_async_t* asyncToken = NodeUtils::Async::GetAsyncToken(info[info.Length() -1].As<Function>());

      opTask.then( [asyncToken] (task<::Windows::Security::Authorization::AppCapabilityAccess::AppCapabilityAccessStatus> t)
      {
        try {
          auto result = t.get();
          NodeUtils::Async::RunCallbackOnMain(asyncToken, [result](NodeUtils::InvokeCallbackDelegate invokeCallback) {


            Local<Value> error;
            Local<Value> arg1;
            {
              TryCatch tryCatch;
              arg1 = Nan::New<Integer>(static_cast<int>(result));
              if (tryCatch.HasCaught())
              {
                error = Nan::To<Object>(tryCatch.Exception()).ToLocalChecked();
              }
              else
              {
                error = Undefined();
              }
              if (arg1.IsEmpty()) arg1 = Undefined();
            }
            Local<Value> args[] = {error, arg1};


            invokeCallback(_countof(args), args);
          });
        }
        catch (Platform::Exception^ exception)
        {
          NodeUtils::Async::RunCallbackOnMain(asyncToken, [exception](NodeUtils::InvokeCallbackDelegate invokeCallback) {

            Local<Value> error = NodeRT::Utils::WinRtExceptionToJsError(exception);

            Local<Value> args[] = {error};
            invokeCallback(_countof(args), args);
          });
        }
      });
    }




    private:
      ::Windows::Graphics::Capture::GraphicsCaptureAccess^ _instance;
      static Persistent<FunctionTemplate> s_constructorTemplate;

      friend v8::Local<v8::Value> WrapGraphicsCaptureAccess(::Windows::Graphics::Capture::GraphicsCaptureAccess^ wintRtInstance);
      friend ::Windows::Graphics::Capture::GraphicsCaptureAccess^ UnwrapGraphicsCaptureAccess(Local<Value> value);
  };

  Persistent<FunctionTemplate> GraphicsCaptureAccess::s_constructorTemplate;

  v8::Local<v8::Value> WrapGraphicsCaptureAccess(::Windows::Graphics::Capture::GraphicsCaptureAccess^ winRtInstance) {
    EscapableHandleScope scope;

    if (winRtInstance == nullptr) {
      return scope.Escape(Undefined());
    }

    Local<Value> opaqueWrapper = CreateOpaqueWrapper(winRtInstance);
    Local<Value> args[] = {opaqueWrapper};
    Local<FunctionTemplate> localRef = Nan::New<FunctionTemplate>(GraphicsCaptureAccess::s_constructorTemplate);
    return scope.Escape(Nan::NewInstance(Nan::GetFunction(localRef).ToLocalChecked(),_countof(args), args).ToLocalChecked());
  }

  ::Windows::Graphics::Capture::GraphicsCaptureAccess^ UnwrapGraphicsCaptureAccess(Local<Value> value) {
     return GraphicsCaptureAccess::Unwrap<GraphicsCaptureAccess>(Nan::To<Object>(value).ToLocalChecked())->_instance;
  }

  void InitGraphicsCaptureAccess(Local<Object> exports) {
    GraphicsCaptureAccess::Init(exports);
  }

  class GraphicsCaptureItem : public WrapperBase {
    public:
      
      static void Init(const Local<Object> exports) {
        HandleScope scope;

        Local<FunctionTemplate> localRef = Nan::New<FunctionTemplate>(New);
        s_constructorTemplate.Reset(localRef);
        localRef->SetClassName(Nan::New<String>("GraphicsCaptureItem").ToLocalChecked());
        localRef->InstanceTemplate()->SetInternalFieldCount(1);




          
          Nan::SetPrototypeMethod(localRef,"addListener", AddListener);
          Nan::SetPrototypeMethod(localRef,"on", AddListener);
          Nan::SetPrototypeMethod(localRef,"removeListener", RemoveListener);
          Nan::SetPrototypeMethod(localRef, "off", RemoveListener);

          
            Nan::SetAccessor(localRef->PrototypeTemplate(), Nan::New<String>("displayName").ToLocalChecked(), DisplayNameGetter);
            Nan::SetAccessor(localRef->PrototypeTemplate(), Nan::New<String>("size").ToLocalChecked(), SizeGetter);

        Local<Object> constructor = Nan::To<Object>(Nan::GetFunction(localRef).ToLocalChecked()).ToLocalChecked();
        Nan::SetMethod(constructor, "castFrom", CastFrom);

        Nan::SetMethod(constructor, "tryCreateFromWindowId", TryCreateFromWindowId);
        Nan::SetMethod(constructor, "tryCreateFromDisplayId", TryCreateFromDisplayId);
        Nan::SetMethod(constructor, "createFromVisual", CreateFromVisual);


        Nan::Set(exports, Nan::New<String>("GraphicsCaptureItem").ToLocalChecked(), constructor);
      }

      virtual ::Platform::Object^ GetObjectInstance() const override {
        return _instance;
      }

    private:

      GraphicsCaptureItem(::Windows::Graphics::Capture::GraphicsCaptureItem^ instance) {
        _instance = instance;
      }

      
    static void New(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      Local<FunctionTemplate> localRef = Nan::New<FunctionTemplate>(s_constructorTemplate);

      // in case the constructor was called without the new operator
      if (!localRef->HasInstance(info.This())) {
        if (info.Length() > 0) {
          std::unique_ptr<Local<Value> []> constructorArgs(new Local<Value>[info.Length()]);

          Local<Value> *argsPtr = constructorArgs.get();
          for (int i = 0; i < info.Length(); i++) {
            argsPtr[i] = info[i];
          }

          MaybeLocal<Object> res = Nan::NewInstance(Nan::GetFunction(localRef).ToLocalChecked(), info.Length(), constructorArgs.get());
          if (res.IsEmpty()) {
            return;
          }

          info.GetReturnValue().Set(res.ToLocalChecked());
          return;
        } else {
          MaybeLocal<Object> res = Nan::NewInstance(Nan::GetFunction(localRef).ToLocalChecked(), info.Length(), nullptr);

          if (res.IsEmpty()) {
            return;
          }

          info.GetReturnValue().Set(res.ToLocalChecked());
          return;
        }
      }

      ::Windows::Graphics::Capture::GraphicsCaptureItem^ winRtInstance;


      if (info.Length() == 1 && OpaqueWrapper::IsOpaqueWrapper(info[0]) &&
        NodeRT::Utils::IsWinRtWrapperOf<::Windows::Graphics::Capture::GraphicsCaptureItem^>(info[0])) {
        try {
          winRtInstance = (::Windows::Graphics::Capture::GraphicsCaptureItem^) NodeRT::Utils::GetObjectInstance(info[0]);
        } catch (Platform::Exception ^exception) {
          NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
          return;
        }
      }
 else {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Invalid arguments, no suitable constructor found")));
        return;
      }

      NodeRT::Utils::SetHiddenValue(info.This(), Nan::New<String>("__winRtInstance__").ToLocalChecked(), True());

      GraphicsCaptureItem *wrapperInstance = new GraphicsCaptureItem(winRtInstance);
      wrapperInstance->Wrap(info.This());

      info.GetReturnValue().Set(info.This());
    }


      
    static void CastFrom(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;
      if (info.Length() < 1 || !NodeRT::Utils::IsWinRtWrapperOf<::Windows::Graphics::Capture::GraphicsCaptureItem^>(info[0])) {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Invalid arguments, no object provided, or given object could not be casted to requested type")));
        return;
      }

      ::Windows::Graphics::Capture::GraphicsCaptureItem^ winRtInstance;
      try {
        winRtInstance = (::Windows::Graphics::Capture::GraphicsCaptureItem^) NodeRT::Utils::GetObjectInstance(info[0]);
      } catch (Platform::Exception ^exception) {
        NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
        return;
      }

      info.GetReturnValue().Set(WrapGraphicsCaptureItem(winRtInstance));
    }





    static void TryCreateFromWindowId(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      if (info.Length() == 1
        && IsWindowIdJsObject(info[0]))
      {
        try
        {
          ::Windows::UI::WindowId arg0 = WindowIdFromJsObject(info[0]);
          
          ::Windows::Graphics::Capture::GraphicsCaptureItem^ result;
          result = ::Windows::Graphics::Capture::GraphicsCaptureItem::TryCreateFromWindowId(arg0);
          info.GetReturnValue().Set(WrapGraphicsCaptureItem(result));
          return;
        }
        catch (Platform::Exception ^exception)
        {
          NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
          return;
        }
      }
 else  {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Bad arguments: no suitable overload found")));
        return;
      }
    }

    static void TryCreateFromDisplayId(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      if (info.Length() == 1
        && IsDisplayIdJsObject(info[0]))
      {
        try
        {
          ::Windows::Graphics::DisplayId arg0 = DisplayIdFromJsObject(info[0]);
          
          ::Windows::Graphics::Capture::GraphicsCaptureItem^ result;
          result = ::Windows::Graphics::Capture::GraphicsCaptureItem::TryCreateFromDisplayId(arg0);
          info.GetReturnValue().Set(WrapGraphicsCaptureItem(result));
          return;
        }
        catch (Platform::Exception ^exception)
        {
          NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
          return;
        }
      }
 else  {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Bad arguments: no suitable overload found")));
        return;
      }
    }

    static void CreateFromVisual(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      if (info.Length() == 1
        && NodeRT::Utils::IsWinRtWrapperOf<::Windows::UI::Composition::Visual^>(info[0]))
      {
        try
        {
          ::Windows::UI::Composition::Visual^ arg0 = dynamic_cast<::Windows::UI::Composition::Visual^>(NodeRT::Utils::GetObjectInstance(info[0]));
          
          ::Windows::Graphics::Capture::GraphicsCaptureItem^ result;
          result = ::Windows::Graphics::Capture::GraphicsCaptureItem::CreateFromVisual(arg0);
          info.GetReturnValue().Set(WrapGraphicsCaptureItem(result));
          return;
        }
        catch (Platform::Exception ^exception)
        {
          NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
          return;
        }
      }
 else  {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Bad arguments: no suitable overload found")));
        return;
      }
    }

    static void DisplayNameGetter(Local<String> property, const Nan::PropertyCallbackInfo<v8::Value> &info) {
      HandleScope scope;

      if (!NodeRT::Utils::IsWinRtWrapperOf<::Windows::Graphics::Capture::GraphicsCaptureItem^>(info.This())) {
        return;
      }

      GraphicsCaptureItem *wrapper = GraphicsCaptureItem::Unwrap<GraphicsCaptureItem>(info.This());

      try  {
        Platform::String^ result = wrapper->_instance->DisplayName;
        info.GetReturnValue().Set(NodeRT::Utils::NewString(result->Data()));
        return;
      } catch (Platform::Exception ^exception) {
        NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
        return;
      }
    }
      
    static void SizeGetter(Local<String> property, const Nan::PropertyCallbackInfo<v8::Value> &info) {
      HandleScope scope;

      if (!NodeRT::Utils::IsWinRtWrapperOf<::Windows::Graphics::Capture::GraphicsCaptureItem^>(info.This())) {
        return;
      }

      GraphicsCaptureItem *wrapper = GraphicsCaptureItem::Unwrap<GraphicsCaptureItem>(info.This());

      try  {
        ::Windows::Graphics::SizeInt32 result = wrapper->_instance->Size;
        info.GetReturnValue().Set(SizeInt32ToJsObject(result));
        return;
      } catch (Platform::Exception ^exception) {
        NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
        return;
      }
    }
      


    static void AddListener(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      if (info.Length() < 2 || !info[0]->IsString() || !info[1]->IsFunction()) {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"wrong arguments, expected arguments are eventName(string),callback(function)")));
        return;
      }

      String::Value eventName(v8::Isolate::GetCurrent(), info[0]);
      auto str = *eventName;

      Local<Function> callback = info[1].As<Function>();

      ::Windows::Foundation::EventRegistrationToken registrationToken;
      if (NodeRT::Utils::CaseInsenstiveEquals(L"closed", str))
      {
        if (!NodeRT::Utils::IsWinRtWrapperOf<::Windows::Graphics::Capture::GraphicsCaptureItem^>(info.This()))
        {
          Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"The caller of this method isn't of the expected type or internal WinRt object was disposed")));
      return;
        }
        GraphicsCaptureItem *wrapper = GraphicsCaptureItem::Unwrap<GraphicsCaptureItem>(info.This());
      
        try {
          Persistent<Object>* perstPtr = new Persistent<Object>();
          perstPtr->Reset(NodeRT::Utils::CreateCallbackObjectInDomain(callback));
          std::shared_ptr<Persistent<Object>> callbackObjPtr(perstPtr,
            [] (Persistent<Object> *ptr ) {
              NodeUtils::Async::RunOnMain([ptr]() {
                ptr->Reset();
                delete ptr;
            });
          });

          registrationToken = wrapper->_instance->Closed::add(
            ref new ::Windows::Foundation::TypedEventHandler<::Windows::Graphics::Capture::GraphicsCaptureItem^, ::Platform::Object^>(
            [callbackObjPtr](::Windows::Graphics::Capture::GraphicsCaptureItem^ arg0, ::Platform::Object^ arg1) {
              NodeUtils::Async::RunOnMain([callbackObjPtr , arg0, arg1]() {
                HandleScope scope;


                Local<Value> wrappedArg0;
                Local<Value> wrappedArg1;

                {
                  TryCatch tryCatch;


                  wrappedArg0 = WrapGraphicsCaptureItem(arg0);
                  wrappedArg1 = CreateOpaqueWrapper(arg1);


                  if (wrappedArg0.IsEmpty()) wrappedArg0 = Undefined();
                  if (wrappedArg1.IsEmpty()) wrappedArg1 = Undefined();
                }

                Local<Value> args[] = { wrappedArg0, wrappedArg1 };
                Local<Object> callbackObjLocalRef = Nan::New<Object>(*callbackObjPtr);
                NodeRT::Utils::CallCallbackInDomain(callbackObjLocalRef, _countof(args), args);
              });
            })
          );
        }
        catch (Platform::Exception ^exception) {
          NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
          return;
        }

      }
 else  {
        Nan::ThrowError(Nan::Error(String::Concat(v8::Isolate::GetCurrent(), NodeRT::Utils::NewString(L"given event name isn't supported: "), info[0].As<String>())));
        return;
      }

      Local<Value> tokenMapVal = NodeRT::Utils::GetHiddenValue(callback, Nan::New<String>(REGISTRATION_TOKEN_MAP_PROPERTY_NAME).ToLocalChecked());
      Local<Object> tokenMap;

      if (tokenMapVal.IsEmpty() || Nan::Equals(tokenMapVal, Undefined()).FromMaybe(false)) {
        tokenMap = Nan::New<Object>();
        NodeRT::Utils::SetHiddenValueWithObject(callback, Nan::New<String>(REGISTRATION_TOKEN_MAP_PROPERTY_NAME).ToLocalChecked(), tokenMap);
      } else {
        tokenMap = Nan::To<Object>(tokenMapVal).ToLocalChecked();
      }

      Nan::Set(tokenMap, info[0], CreateOpaqueWrapper(::Windows::Foundation::PropertyValue::CreateInt64(registrationToken.Value)));
    }

    static void RemoveListener(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      if (info.Length() < 2 || !info[0]->IsString() || !info[1]->IsFunction()) {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"wrong arguments, expected a string and a callback")));
        return;
      }

      String::Value eventName(v8::Isolate::GetCurrent(), info[0]);
      auto str = *eventName;

      if ((!NodeRT::Utils::CaseInsenstiveEquals(L"closed", str))) {
        Nan::ThrowError(Nan::Error(String::Concat(v8::Isolate::GetCurrent(), NodeRT::Utils::NewString(L"given event name isn't supported: "), info[0].As<String>())));
        return;
      }

      Local<Function> callback = info[1].As<Function>();
      Local<Value> tokenMap = NodeRT::Utils::GetHiddenValue(callback, Nan::New<String>(REGISTRATION_TOKEN_MAP_PROPERTY_NAME).ToLocalChecked());

      if (tokenMap.IsEmpty() || Nan::Equals(tokenMap, Undefined()).FromMaybe(false)) {
        return;
      }

      Local<Value> opaqueWrapperObj =  Nan::Get(Nan::To<Object>(tokenMap).ToLocalChecked(), info[0]).ToLocalChecked();

      if (opaqueWrapperObj.IsEmpty() || Nan::Equals(opaqueWrapperObj,Undefined()).FromMaybe(false)) {
        return;
      }

      OpaqueWrapper *opaqueWrapper = OpaqueWrapper::Unwrap<OpaqueWrapper>(opaqueWrapperObj.As<Object>());

      long long tokenValue = (long long) opaqueWrapper->GetObjectInstance();
      ::Windows::Foundation::EventRegistrationToken registrationToken;
      registrationToken.Value = tokenValue;

      try  {
        if (NodeRT::Utils::CaseInsenstiveEquals(L"closed", str)) {
          if (!NodeRT::Utils::IsWinRtWrapperOf<::Windows::Graphics::Capture::GraphicsCaptureItem^>(info.This()))
          {
            Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"The caller of this method isn't of the expected type or internal WinRt object was disposed")));
            return;
          }
          GraphicsCaptureItem *wrapper = GraphicsCaptureItem::Unwrap<GraphicsCaptureItem>(info.This());
          wrapper->_instance->Closed::remove(registrationToken);
        }
      } catch (Platform::Exception ^exception) {
        NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
      }

      Nan::Delete(Nan::To<Object>(tokenMap).ToLocalChecked(), Nan::To<String>(info[0]).ToLocalChecked());
    }
    private:
      ::Windows::Graphics::Capture::GraphicsCaptureItem^ _instance;
      static Persistent<FunctionTemplate> s_constructorTemplate;

      friend v8::Local<v8::Value> WrapGraphicsCaptureItem(::Windows::Graphics::Capture::GraphicsCaptureItem^ wintRtInstance);
      friend ::Windows::Graphics::Capture::GraphicsCaptureItem^ UnwrapGraphicsCaptureItem(Local<Value> value);
  };

  Persistent<FunctionTemplate> GraphicsCaptureItem::s_constructorTemplate;

  v8::Local<v8::Value> WrapGraphicsCaptureItem(::Windows::Graphics::Capture::GraphicsCaptureItem^ winRtInstance) {
    EscapableHandleScope scope;

    if (winRtInstance == nullptr) {
      return scope.Escape(Undefined());
    }

    Local<Value> opaqueWrapper = CreateOpaqueWrapper(winRtInstance);
    Local<Value> args[] = {opaqueWrapper};
    Local<FunctionTemplate> localRef = Nan::New<FunctionTemplate>(GraphicsCaptureItem::s_constructorTemplate);
    return scope.Escape(Nan::NewInstance(Nan::GetFunction(localRef).ToLocalChecked(),_countof(args), args).ToLocalChecked());
  }

  ::Windows::Graphics::Capture::GraphicsCaptureItem^ UnwrapGraphicsCaptureItem(Local<Value> value) {
     return GraphicsCaptureItem::Unwrap<GraphicsCaptureItem>(Nan::To<Object>(value).ToLocalChecked())->_instance;
  }

  void InitGraphicsCaptureItem(Local<Object> exports) {
    GraphicsCaptureItem::Init(exports);
  }

  class GraphicsCapturePicker : public WrapperBase {
    public:
      
      static void Init(const Local<Object> exports) {
        HandleScope scope;

        Local<FunctionTemplate> localRef = Nan::New<FunctionTemplate>(New);
        s_constructorTemplate.Reset(localRef);
        localRef->SetClassName(Nan::New<String>("GraphicsCapturePicker").ToLocalChecked());
        localRef->InstanceTemplate()->SetInternalFieldCount(1);

        Local<Function> func;
        Local<FunctionTemplate> funcTemplate;


          
            Nan::SetPrototypeMethod(localRef, "pickSingleItemAsync", PickSingleItemAsync);
          



        Local<Object> constructor = Nan::To<Object>(Nan::GetFunction(localRef).ToLocalChecked()).ToLocalChecked();
        Nan::SetMethod(constructor, "castFrom", CastFrom);



        Nan::Set(exports, Nan::New<String>("GraphicsCapturePicker").ToLocalChecked(), constructor);
      }

      virtual ::Platform::Object^ GetObjectInstance() const override {
        return _instance;
      }

    private:

      GraphicsCapturePicker(::Windows::Graphics::Capture::GraphicsCapturePicker^ instance) {
        _instance = instance;
      }

      
    static void New(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      Local<FunctionTemplate> localRef = Nan::New<FunctionTemplate>(s_constructorTemplate);

      // in case the constructor was called without the new operator
      if (!localRef->HasInstance(info.This())) {
        if (info.Length() > 0) {
          std::unique_ptr<Local<Value> []> constructorArgs(new Local<Value>[info.Length()]);

          Local<Value> *argsPtr = constructorArgs.get();
          for (int i = 0; i < info.Length(); i++) {
            argsPtr[i] = info[i];
          }

          MaybeLocal<Object> res = Nan::NewInstance(Nan::GetFunction(localRef).ToLocalChecked(), info.Length(), constructorArgs.get());
          if (res.IsEmpty()) {
            return;
          }

          info.GetReturnValue().Set(res.ToLocalChecked());
          return;
        } else {
          MaybeLocal<Object> res = Nan::NewInstance(Nan::GetFunction(localRef).ToLocalChecked(), info.Length(), nullptr);

          if (res.IsEmpty()) {
            return;
          }

          info.GetReturnValue().Set(res.ToLocalChecked());
          return;
        }
      }

      ::Windows::Graphics::Capture::GraphicsCapturePicker^ winRtInstance;


      if (info.Length() == 1 && OpaqueWrapper::IsOpaqueWrapper(info[0]) &&
        NodeRT::Utils::IsWinRtWrapperOf<::Windows::Graphics::Capture::GraphicsCapturePicker^>(info[0])) {
        try {
          winRtInstance = (::Windows::Graphics::Capture::GraphicsCapturePicker^) NodeRT::Utils::GetObjectInstance(info[0]);
        } catch (Platform::Exception ^exception) {
          NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
          return;
        }
      }
      else if (info.Length() == 0)
      {
        try {
          winRtInstance = ref new ::Windows::Graphics::Capture::GraphicsCapturePicker();
        } catch (Platform::Exception ^exception) {
          NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
          return;
        }
      }
 else {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Invalid arguments, no suitable constructor found")));
        return;
      }

      NodeRT::Utils::SetHiddenValue(info.This(), Nan::New<String>("__winRtInstance__").ToLocalChecked(), True());

      GraphicsCapturePicker *wrapperInstance = new GraphicsCapturePicker(winRtInstance);
      wrapperInstance->Wrap(info.This());

      info.GetReturnValue().Set(info.This());
    }


      
    static void CastFrom(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;
      if (info.Length() < 1 || !NodeRT::Utils::IsWinRtWrapperOf<::Windows::Graphics::Capture::GraphicsCapturePicker^>(info[0])) {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Invalid arguments, no object provided, or given object could not be casted to requested type")));
        return;
      }

      ::Windows::Graphics::Capture::GraphicsCapturePicker^ winRtInstance;
      try {
        winRtInstance = (::Windows::Graphics::Capture::GraphicsCapturePicker^) NodeRT::Utils::GetObjectInstance(info[0]);
      } catch (Platform::Exception ^exception) {
        NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
        return;
      }

      info.GetReturnValue().Set(WrapGraphicsCapturePicker(winRtInstance));
    }

    static void PickSingleItemAsync(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      if (!NodeRT::Utils::IsWinRtWrapperOf<::Windows::Graphics::Capture::GraphicsCapturePicker^>(info.This())) {
        return;
      }

      if (info.Length() == 0 || !info[info.Length() -1]->IsFunction()) {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Bad arguments: No callback was given")));
        return;
      }

      GraphicsCapturePicker *wrapper = GraphicsCapturePicker::Unwrap<GraphicsCapturePicker>(info.This());

      ::Windows::Foundation::IAsyncOperation<::Windows::Graphics::Capture::GraphicsCaptureItem^>^ op;


      if (info.Length() == 1)
      {
        try
        {
          op = wrapper->_instance->PickSingleItemAsync();
        }
        catch (Platform::Exception ^exception)
        {
          NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
          return;
        }
      }
 else {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Bad arguments: no suitable overload found")));
        return;
      }

      auto opTask = create_task(op);
      uv_async_t* asyncToken = NodeUtils::Async::GetAsyncToken(info[info.Length() -1].As<Function>());

      opTask.then( [asyncToken] (task<::Windows::Graphics::Capture::GraphicsCaptureItem^> t) {
        try {
          auto result = t.get();
          NodeUtils::Async::RunCallbackOnMain(asyncToken, [result](NodeUtils::InvokeCallbackDelegate invokeCallback) {


            Local<Value> error;
            Local<Value> arg1;
            {
              TryCatch tryCatch;
              arg1 = WrapGraphicsCaptureItem(result);
              if (tryCatch.HasCaught())
              {
                error = Nan::To<Object>(tryCatch.Exception()).ToLocalChecked();
              }
              else
              {
                error = Undefined();
              }
              if (arg1.IsEmpty()) arg1 = Undefined();
            }
            Local<Value> args[] = {error, arg1};


            invokeCallback(_countof(args), args);
          });
        } catch (Platform::Exception^ exception) {
          NodeUtils::Async::RunCallbackOnMain(asyncToken, [exception](NodeUtils::InvokeCallbackDelegate invokeCallback) {
            Local<Value> error = NodeRT::Utils::WinRtExceptionToJsError(exception);

            Local<Value> args[] = {error};
            invokeCallback(_countof(args), args);
          });
        }
      });
    }






    private:
      ::Windows::Graphics::Capture::GraphicsCapturePicker^ _instance;
      static Persistent<FunctionTemplate> s_constructorTemplate;

      friend v8::Local<v8::Value> WrapGraphicsCapturePicker(::Windows::Graphics::Capture::GraphicsCapturePicker^ wintRtInstance);
      friend ::Windows::Graphics::Capture::GraphicsCapturePicker^ UnwrapGraphicsCapturePicker(Local<Value> value);
  };

  Persistent<FunctionTemplate> GraphicsCapturePicker::s_constructorTemplate;

  v8::Local<v8::Value> WrapGraphicsCapturePicker(::Windows::Graphics::Capture::GraphicsCapturePicker^ winRtInstance) {
    EscapableHandleScope scope;

    if (winRtInstance == nullptr) {
      return scope.Escape(Undefined());
    }

    Local<Value> opaqueWrapper = CreateOpaqueWrapper(winRtInstance);
    Local<Value> args[] = {opaqueWrapper};
    Local<FunctionTemplate> localRef = Nan::New<FunctionTemplate>(GraphicsCapturePicker::s_constructorTemplate);
    return scope.Escape(Nan::NewInstance(Nan::GetFunction(localRef).ToLocalChecked(),_countof(args), args).ToLocalChecked());
  }

  ::Windows::Graphics::Capture::GraphicsCapturePicker^ UnwrapGraphicsCapturePicker(Local<Value> value) {
     return GraphicsCapturePicker::Unwrap<GraphicsCapturePicker>(Nan::To<Object>(value).ToLocalChecked())->_instance;
  }

  void InitGraphicsCapturePicker(Local<Object> exports) {
    GraphicsCapturePicker::Init(exports);
  }

  class GraphicsCaptureSession : public WrapperBase {
    public:
      
      static void Init(const Local<Object> exports) {
        HandleScope scope;

        Local<FunctionTemplate> localRef = Nan::New<FunctionTemplate>(New);
        s_constructorTemplate.Reset(localRef);
        localRef->SetClassName(Nan::New<String>("GraphicsCaptureSession").ToLocalChecked());
        localRef->InstanceTemplate()->SetInternalFieldCount(1);


          
            Nan::SetPrototypeMethod(localRef, "startCapture", StartCapture);
            Nan::SetPrototypeMethod(localRef, "close", Close);
          



          
            Nan::SetAccessor(localRef->PrototypeTemplate(), Nan::New<String>("isCursorCaptureEnabled").ToLocalChecked(), IsCursorCaptureEnabledGetter, IsCursorCaptureEnabledSetter);
            Nan::SetAccessor(localRef->PrototypeTemplate(), Nan::New<String>("isBorderRequired").ToLocalChecked(), IsBorderRequiredGetter, IsBorderRequiredSetter);

        Local<Object> constructor = Nan::To<Object>(Nan::GetFunction(localRef).ToLocalChecked()).ToLocalChecked();
        Nan::SetMethod(constructor, "castFrom", CastFrom);

        Nan::SetMethod(constructor, "isSupported", IsSupported);


        Nan::Set(exports, Nan::New<String>("GraphicsCaptureSession").ToLocalChecked(), constructor);
      }

      virtual ::Platform::Object^ GetObjectInstance() const override {
        return _instance;
      }

    private:

      GraphicsCaptureSession(::Windows::Graphics::Capture::GraphicsCaptureSession^ instance) {
        _instance = instance;
      }

      
    static void New(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      Local<FunctionTemplate> localRef = Nan::New<FunctionTemplate>(s_constructorTemplate);

      // in case the constructor was called without the new operator
      if (!localRef->HasInstance(info.This())) {
        if (info.Length() > 0) {
          std::unique_ptr<Local<Value> []> constructorArgs(new Local<Value>[info.Length()]);

          Local<Value> *argsPtr = constructorArgs.get();
          for (int i = 0; i < info.Length(); i++) {
            argsPtr[i] = info[i];
          }

          MaybeLocal<Object> res = Nan::NewInstance(Nan::GetFunction(localRef).ToLocalChecked(), info.Length(), constructorArgs.get());
          if (res.IsEmpty()) {
            return;
          }

          info.GetReturnValue().Set(res.ToLocalChecked());
          return;
        } else {
          MaybeLocal<Object> res = Nan::NewInstance(Nan::GetFunction(localRef).ToLocalChecked(), info.Length(), nullptr);

          if (res.IsEmpty()) {
            return;
          }

          info.GetReturnValue().Set(res.ToLocalChecked());
          return;
        }
      }

      ::Windows::Graphics::Capture::GraphicsCaptureSession^ winRtInstance;


      if (info.Length() == 1 && OpaqueWrapper::IsOpaqueWrapper(info[0]) &&
        NodeRT::Utils::IsWinRtWrapperOf<::Windows::Graphics::Capture::GraphicsCaptureSession^>(info[0])) {
        try {
          winRtInstance = (::Windows::Graphics::Capture::GraphicsCaptureSession^) NodeRT::Utils::GetObjectInstance(info[0]);
        } catch (Platform::Exception ^exception) {
          NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
          return;
        }
      }
 else {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Invalid arguments, no suitable constructor found")));
        return;
      }

      NodeRT::Utils::SetHiddenValue(info.This(), Nan::New<String>("__winRtInstance__").ToLocalChecked(), True());

      GraphicsCaptureSession *wrapperInstance = new GraphicsCaptureSession(winRtInstance);
      wrapperInstance->Wrap(info.This());

      info.GetReturnValue().Set(info.This());
    }


      
    static void CastFrom(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;
      if (info.Length() < 1 || !NodeRT::Utils::IsWinRtWrapperOf<::Windows::Graphics::Capture::GraphicsCaptureSession^>(info[0])) {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Invalid arguments, no object provided, or given object could not be casted to requested type")));
        return;
      }

      ::Windows::Graphics::Capture::GraphicsCaptureSession^ winRtInstance;
      try {
        winRtInstance = (::Windows::Graphics::Capture::GraphicsCaptureSession^) NodeRT::Utils::GetObjectInstance(info[0]);
      } catch (Platform::Exception ^exception) {
        NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
        return;
      }

      info.GetReturnValue().Set(WrapGraphicsCaptureSession(winRtInstance));
    }


    static void StartCapture(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      if (!NodeRT::Utils::IsWinRtWrapperOf<::Windows::Graphics::Capture::GraphicsCaptureSession^>(info.This())) {
        return;
      }

      GraphicsCaptureSession *wrapper = GraphicsCaptureSession::Unwrap<GraphicsCaptureSession>(info.This());

      if (info.Length() == 0)
      {
        try
        {
          wrapper->_instance->StartCapture();
          return;
        } catch (Platform::Exception ^exception) {
          NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
          return;
        }
      }
 else {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Bad arguments: no suitable overload found")));
        return;
      }
    }

    static void Close(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      if (!NodeRT::Utils::IsWinRtWrapperOf<::Windows::Graphics::Capture::GraphicsCaptureSession^>(info.This())) {
        return;
      }

      GraphicsCaptureSession *wrapper = GraphicsCaptureSession::Unwrap<GraphicsCaptureSession>(info.This());

      if (info.Length() == 0) {
        try {
          delete wrapper->_instance;
          wrapper->_instance = nullptr;
          return;
        } catch (Platform::Exception ^exception) {
          NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
          return;
        }
      } else {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Bad arguments: no suitable overload found")));
        return;
      }
    }



    static void IsSupported(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      if (info.Length() == 0)
      {
        try
        {
          bool result;
          result = ::Windows::Graphics::Capture::GraphicsCaptureSession::IsSupported();
          info.GetReturnValue().Set(Nan::New<Boolean>(result));
          return;
        }
        catch (Platform::Exception ^exception)
        {
          NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
          return;
        }
      }
 else  {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Bad arguments: no suitable overload found")));
        return;
      }
    }

    static void IsCursorCaptureEnabledGetter(Local<String> property, const Nan::PropertyCallbackInfo<v8::Value> &info) {
      HandleScope scope;

      if (!NodeRT::Utils::IsWinRtWrapperOf<::Windows::Graphics::Capture::GraphicsCaptureSession^>(info.This())) {
        return;
      }

      GraphicsCaptureSession *wrapper = GraphicsCaptureSession::Unwrap<GraphicsCaptureSession>(info.This());

      try  {
        bool result = wrapper->_instance->IsCursorCaptureEnabled;
        info.GetReturnValue().Set(Nan::New<Boolean>(result));
        return;
      } catch (Platform::Exception ^exception) {
        NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
        return;
      }
    }
      
    static void IsCursorCaptureEnabledSetter(Local<String> property, Local<Value> value, const Nan::PropertyCallbackInfo<void> &info) {
      HandleScope scope;

      if (!value->IsBoolean()) {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Value to set is of unexpected type")));
        return;
      }

      if (!NodeRT::Utils::IsWinRtWrapperOf<::Windows::Graphics::Capture::GraphicsCaptureSession^>(info.This())) {
        return;
      }

      GraphicsCaptureSession *wrapper = GraphicsCaptureSession::Unwrap<GraphicsCaptureSession>(info.This());

      try {

        bool winRtValue = Nan::To<bool>(value).FromMaybe(false);

        wrapper->_instance->IsCursorCaptureEnabled = winRtValue;
      } catch (Platform::Exception ^exception) {
        NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
      }
    }
      
    static void IsBorderRequiredGetter(Local<String> property, const Nan::PropertyCallbackInfo<v8::Value> &info) {
      HandleScope scope;

      if (!NodeRT::Utils::IsWinRtWrapperOf<::Windows::Graphics::Capture::GraphicsCaptureSession^>(info.This())) {
        return;
      }

      GraphicsCaptureSession *wrapper = GraphicsCaptureSession::Unwrap<GraphicsCaptureSession>(info.This());

      try  {
        bool result = wrapper->_instance->IsBorderRequired;
        info.GetReturnValue().Set(Nan::New<Boolean>(result));
        return;
      } catch (Platform::Exception ^exception) {
        NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
        return;
      }
    }
      
    static void IsBorderRequiredSetter(Local<String> property, Local<Value> value, const Nan::PropertyCallbackInfo<void> &info) {
      HandleScope scope;

      if (!value->IsBoolean()) {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Value to set is of unexpected type")));
        return;
      }

      if (!NodeRT::Utils::IsWinRtWrapperOf<::Windows::Graphics::Capture::GraphicsCaptureSession^>(info.This())) {
        return;
      }

      GraphicsCaptureSession *wrapper = GraphicsCaptureSession::Unwrap<GraphicsCaptureSession>(info.This());

      try {

        bool winRtValue = Nan::To<bool>(value).FromMaybe(false);

        wrapper->_instance->IsBorderRequired = winRtValue;
      } catch (Platform::Exception ^exception) {
        NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
      }
    }
      


    private:
      ::Windows::Graphics::Capture::GraphicsCaptureSession^ _instance;
      static Persistent<FunctionTemplate> s_constructorTemplate;

      friend v8::Local<v8::Value> WrapGraphicsCaptureSession(::Windows::Graphics::Capture::GraphicsCaptureSession^ wintRtInstance);
      friend ::Windows::Graphics::Capture::GraphicsCaptureSession^ UnwrapGraphicsCaptureSession(Local<Value> value);
  };

  Persistent<FunctionTemplate> GraphicsCaptureSession::s_constructorTemplate;

  v8::Local<v8::Value> WrapGraphicsCaptureSession(::Windows::Graphics::Capture::GraphicsCaptureSession^ winRtInstance) {
    EscapableHandleScope scope;

    if (winRtInstance == nullptr) {
      return scope.Escape(Undefined());
    }

    Local<Value> opaqueWrapper = CreateOpaqueWrapper(winRtInstance);
    Local<Value> args[] = {opaqueWrapper};
    Local<FunctionTemplate> localRef = Nan::New<FunctionTemplate>(GraphicsCaptureSession::s_constructorTemplate);
    return scope.Escape(Nan::NewInstance(Nan::GetFunction(localRef).ToLocalChecked(),_countof(args), args).ToLocalChecked());
  }

  ::Windows::Graphics::Capture::GraphicsCaptureSession^ UnwrapGraphicsCaptureSession(Local<Value> value) {
     return GraphicsCaptureSession::Unwrap<GraphicsCaptureSession>(Nan::To<Object>(value).ToLocalChecked())->_instance;
  }

  void InitGraphicsCaptureSession(Local<Object> exports) {
    GraphicsCaptureSession::Init(exports);
  }


} } } } 

NAN_MODULE_INIT(init) {
  // We ignore failures for now since it probably means that
  // the initialization already happened for STA, and that's cool

  CoInitializeEx(nullptr, COINIT_MULTITHREADED);

  /*
  if (FAILED(CoInitializeEx(nullptr, COINIT_MULTITHREADED))) {
    Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"error in CoInitializeEx()")));
    return;
  }
  */

      NodeRT::Windows::Graphics::Capture::InitGraphicsCaptureAccessKindEnum(target);
      NodeRT::Windows::Graphics::Capture::InitDirect3D11CaptureFrame(target);
      NodeRT::Windows::Graphics::Capture::InitDirect3D11CaptureFramePool(target);
      NodeRT::Windows::Graphics::Capture::InitGraphicsCaptureAccess(target);
      NodeRT::Windows::Graphics::Capture::InitGraphicsCaptureItem(target);
      NodeRT::Windows::Graphics::Capture::InitGraphicsCapturePicker(target);
      NodeRT::Windows::Graphics::Capture::InitGraphicsCaptureSession(target);


  NodeRT::Utils::RegisterNameSpace("Windows.Graphics.Capture", target);
}



NODE_MODULE(binding, init)