81 lines
2.0 KiB
C++
81 lines
2.0 KiB
C++
//////////////////////////////////////////////////////////////////////////////
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// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
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// ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
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// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
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// PARTICULAR PURPOSE.
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//
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// Copyright (c) Microsoft Corporation. All rights reserved.
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//////////////////////////////////////////////////////////////////////////////
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#pragma once
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#include <wsdapi.h>
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// StockQuote.h is automatically generated from StockQuote.idl
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#include "StockQuote.h"
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//////////////////////////////////////////////////////////////////////////////
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// CStockQuoteService Class
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// Implements the service functionality
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//////////////////////////////////////////////////////////////////////////////
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class CStockQuoteService : public IStockQuote
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{
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private:
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ULONG m_cRef;
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public:
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CStockQuoteService();
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HRESULT STDMETHODCALLTYPE GetLastTradePrice(TRADE_PRICE_REQUEST* body, TRADE_PRICE** bodyOut);
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public:
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//////////////////////////////////////////////////////////////////////////
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// Methods to make this class act like a COM object
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//////////////////////////////////////////////////////////////////////////
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HRESULT STDMETHODCALLTYPE QueryInterface(
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REFIID riid,
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void** ppvObject)
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{
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if (NULL == ppvObject)
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{
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return E_POINTER;
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}
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HRESULT hr = S_OK;
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*ppvObject = NULL;
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if (( __uuidof(IStockQuote) == riid) ||
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( __uuidof(IUnknown) == riid) )
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{
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*ppvObject = (IStockQuote *)this;
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}
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else
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{
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hr = E_NOINTERFACE;
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}
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if (SUCCEEDED(hr))
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{
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((LPUNKNOWN) *ppvObject)->AddRef( );
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}
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return hr;
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}
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ULONG STDMETHODCALLTYPE AddRef()
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{
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ULONG ulNewRefCount = (ULONG)InterlockedIncrement((LONG *)&m_cRef);
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return ulNewRefCount;
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}
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ULONG STDMETHODCALLTYPE Release()
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{
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ULONG ulNewRefCount = (ULONG)InterlockedDecrement((LONG *)&m_cRef);
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if( 0 == ulNewRefCount )
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{
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delete this;
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}
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return ulNewRefCount;
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}
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};
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