221 lines
7.2 KiB
C++
221 lines
7.2 KiB
C++
//-----------------------------------------------------------------------
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// This file is part of the Windows SDK Code Samples.
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//
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// Copyright (C) Microsoft Corporation. All rights reserved.
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//
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// This source code is intended only as a supplement to Microsoft
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// Development Tools and/or on-line documentation. See these other
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// materials for detailed information regarding Microsoft code samples.
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//
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// THIS CODE AND INFORMATION ARE PROVIDED AS IS WITHOUT WARRANTY OF ANY
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// KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
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// PARTICULAR PURPOSE.
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//-----------------------------------------------------------------------
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#include <ole2.h>
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#include <xmllite.h>
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#include <stdio.h>
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#include <shlwapi.h>
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#pragma warning(disable : 4127) // conditional expression is constant
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#define CHKHR(stmt) do { hr = (stmt); if (FAILED(hr)) goto CleanUp; } while(0)
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#define HR(stmt) do { hr = (stmt); goto CleanUp; } while(0)
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#define SAFE_RELEASE(I) do { if (I){ I->Release(); } I = NULL; } while(0)
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HRESULT WriteAttributes(IXmlReader* pReader)
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{
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const WCHAR* pwszPrefix;
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const WCHAR* pwszLocalName;
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const WCHAR* pwszValue;
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HRESULT hr = pReader->MoveToFirstAttribute();
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if (S_FALSE == hr)
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return hr;
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if (S_OK != hr)
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{
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wprintf(L"Error moving to first attribute, error is %08.8lx", hr);
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return hr;
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}
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else
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{
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while (TRUE)
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{
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if (!pReader->IsDefault())
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{
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UINT cwchPrefix;
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if (FAILED(hr = pReader->GetPrefix(&pwszPrefix, &cwchPrefix)))
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{
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wprintf(L"Error getting prefix, error is %08.8lx", hr);
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return hr;
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}
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if (FAILED(hr = pReader->GetLocalName(&pwszLocalName, NULL)))
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{
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wprintf(L"Error getting local name, error is %08.8lx", hr);
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return hr;
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}
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if (FAILED(hr = pReader->GetValue(&pwszValue, NULL)))
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{
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wprintf(L"Error getting value, error is %08.8lx", hr);
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return hr;
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}
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if (cwchPrefix > 0)
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wprintf(L"Attr: %s:%s=\"%s\" \n", pwszPrefix, pwszLocalName, pwszValue);
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else
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wprintf(L"Attr: %s=\"%s\" \n", pwszLocalName, pwszValue);
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}
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if (S_OK != pReader->MoveToNextAttribute())
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break;
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}
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}
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return hr;
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}
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int __cdecl wmain(int argc, _In_reads_(argc) WCHAR* argv[])
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{
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HRESULT hr = S_OK;
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IStream *pFileStream = NULL;
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IXmlReader *pReader = NULL;
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XmlNodeType nodeType;
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const WCHAR* pwszPrefix;
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const WCHAR* pwszLocalName;
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const WCHAR* pwszValue;
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UINT cwchPrefix;
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if (argc != 2)
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{
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wprintf(L"Usage: XmlLiteReader.exe name-of-input-file\n");
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return 0;
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}
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//Open read-only input stream
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if (FAILED(hr = SHCreateStreamOnFile(argv[1], STGM_READ, &pFileStream)))
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{
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wprintf(L"Error creating file reader, error is %08.8lx", hr);
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HR(hr);
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}
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if (FAILED(hr = CreateXmlReader(__uuidof(IXmlReader), (void**) &pReader, NULL)))
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{
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wprintf(L"Error creating xml reader, error is %08.8lx", hr);
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HR(hr);
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}
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if (FAILED(hr = pReader->SetProperty(XmlReaderProperty_DtdProcessing, DtdProcessing_Prohibit)))
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{
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wprintf(L"Error setting XmlReaderProperty_DtdProcessing, error is %08.8lx", hr);
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HR(hr);
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}
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if (FAILED(hr = pReader->SetInput(pFileStream)))
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{
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wprintf(L"Error setting input for reader, error is %08.8lx", hr);
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HR(hr);
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}
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//read until there are no more nodes
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while (S_OK == (hr = pReader->Read(&nodeType)))
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{
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switch (nodeType)
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{
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case XmlNodeType_XmlDeclaration:
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wprintf(L"XmlDeclaration\n");
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if (FAILED(hr = WriteAttributes(pReader)))
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{
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wprintf(L"Error writing attributes, error is %08.8lx", hr);
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HR(hr);
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}
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break;
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case XmlNodeType_Element:
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if (FAILED(hr = pReader->GetPrefix(&pwszPrefix, &cwchPrefix)))
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{
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wprintf(L"Error getting prefix, error is %08.8lx", hr);
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HR(hr);
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}
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if (FAILED(hr = pReader->GetLocalName(&pwszLocalName, NULL)))
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{
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wprintf(L"Error getting local name, error is %08.8lx", hr);
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HR(hr);
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}
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if (cwchPrefix > 0)
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wprintf(L"Element: %s:%s\n", pwszPrefix, pwszLocalName);
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else
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wprintf(L"Element: %s\n", pwszLocalName);
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if (FAILED(hr = WriteAttributes(pReader)))
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{
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wprintf(L"Error writing attributes, error is %08.8lx", hr);
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HR(hr);
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}
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if (pReader->IsEmptyElement() )
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wprintf(L" (empty)");
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break;
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case XmlNodeType_EndElement:
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if (FAILED(hr = pReader->GetPrefix(&pwszPrefix, &cwchPrefix)))
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{
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wprintf(L"Error getting prefix, error is %08.8lx", hr);
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HR(hr);
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}
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if (FAILED(hr = pReader->GetLocalName(&pwszLocalName, NULL)))
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{
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wprintf(L"Error getting local name, error is %08.8lx", hr);
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HR(hr);
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}
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if (cwchPrefix > 0)
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wprintf(L"End Element: %s:%s\n", pwszPrefix, pwszLocalName);
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else
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wprintf(L"End Element: %s\n", pwszLocalName);
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break;
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case XmlNodeType_Text:
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case XmlNodeType_Whitespace:
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if (FAILED(hr = pReader->GetValue(&pwszValue, NULL)))
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{
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wprintf(L"Error getting value, error is %08.8lx", hr);
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HR(hr);
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}
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wprintf(L"Text: >%s<\n", pwszValue);
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break;
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case XmlNodeType_CDATA:
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if (FAILED(hr = pReader->GetValue(&pwszValue, NULL)))
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{
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wprintf(L"Error getting value, error is %08.8lx", hr);
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HR(hr);
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}
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wprintf(L"CDATA: %s\n", pwszValue);
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break;
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case XmlNodeType_ProcessingInstruction:
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if (FAILED(hr = pReader->GetLocalName(&pwszLocalName, NULL)))
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{
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wprintf(L"Error getting name, error is %08.8lx", hr);
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HR(hr);
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}
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if (FAILED(hr = pReader->GetValue(&pwszValue, NULL)))
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{
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wprintf(L"Error getting value, error is %08.8lx", hr);
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HR(hr);
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}
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wprintf(L"Processing Instruction name:%s value:%s\n", pwszLocalName, pwszValue);
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break;
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case XmlNodeType_Comment:
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if (FAILED(hr = pReader->GetValue(&pwszValue, NULL)))
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{
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wprintf(L"Error getting value, error is %08.8lx", hr);
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HR(hr);
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}
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wprintf(L"Comment: %s\n", pwszValue);
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break;
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case XmlNodeType_DocumentType:
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wprintf(L"DOCTYPE is not printed\n");
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break;
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}
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}
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CleanUp:
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SAFE_RELEASE(pFileStream);
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SAFE_RELEASE(pReader);
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return hr;
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}
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