add front demo in this project

LFtid1056/cloudfront/code/log4cplus/nteventlogappender.h

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+// -*- C++ -*-
+// Module:  Log4CPLUS
+// File:    nteventlogappender.h
+// Created: 4/2003
+// Author:  Michael CATANZARITI
+//
+// Copyright 2003-2017 Michael CATANZARITI
+//
+// 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
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+/** @file */
+
+#ifndef LOG4CPLUS_NT_EVENT_LOG_APPENDER_HEADER_
+#define LOG4CPLUS_NT_EVENT_LOG_APPENDER_HEADER_
+
+#include <log4cplus/config.hxx>
+
+#if defined (LOG4CPLUS_HAVE_PRAGMA_ONCE)
+#pragma once
+#endif
+
+#if defined (LOG4CPLUS_HAVE_NT_EVENT_LOG)
+
+#include <log4cplus/appender.h>
+#include <log4cplus/config/windowsh-inc.h>
+
+
+namespace log4cplus {
+
+    /**
+     * Appends log events to NT EventLog. 
+     */
+    class LOG4CPLUS_EXPORT NTEventLogAppender : public Appender {
+    public:
+      // ctors
+        NTEventLogAppender(const log4cplus::tstring& server, 
+                           const log4cplus::tstring& log, 
+                           const log4cplus::tstring& source);
+        NTEventLogAppender(const log4cplus::helpers::Properties & properties);
+
+      // dtor
+        virtual ~NTEventLogAppender();
+
+      // public Methods
+        virtual void close();
+
+    protected:
+        virtual void append(const spi::InternalLoggingEvent& event);
+        virtual WORD getEventType(const spi::InternalLoggingEvent& event);
+        virtual WORD getEventCategory(const spi::InternalLoggingEvent& event);
+        void init();
+
+        /*
+         * Add this source with appropriate configuration keys to the registry.
+         */
+        void addRegistryInfo();
+
+      // Data
+        log4cplus::tstring server;
+        log4cplus::tstring log;
+        log4cplus::tstring source;
+        HANDLE hEventLog;
+        SID* pCurrentUserSID;
+
+    private:
+      // Disallow copying of instances of this class
+        NTEventLogAppender(const NTEventLogAppender&);
+        NTEventLogAppender& operator=(const NTEventLogAppender&);
+    };
+
+} // end namespace log4cplus
+
+#endif // LOG4CPLUS_HAVE_NT_EVENT_LOG
+#endif //LOG4CPLUS_NT_EVENT_LOG_APPENDER_HEADER_