Leaked source code of windows server 2003
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// FormatMessage.cpp: implementation of the CFormatMessage class.
//
//////////////////////////////////////////////////////////////////////
#include <windows.h>
#include <tchar.h>
#include "FormatMessage.h"
//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////
CFormatMessage::CFormatMessage( long lError ) { if ( !FormatMessage( FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, lError, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), reinterpret_cast<LPWSTR>( &m_psFormattedMessage ), 0, NULL )) { m_psFormattedMessage = NULL; _sntprintf( m_sBuffer, sizeof(m_sBuffer)/sizeof(TCHAR), _T("%x" ), lError ); m_sBuffer[sizeof(m_sBuffer)/sizeof(TCHAR)-1] = 0; } }
CFormatMessage::~CFormatMessage() { if ( NULL != m_psFormattedMessage ) LocalFree( m_psFormattedMessage ); }
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