BOOL CTSysWatch::GetNetAdapterFlux(LPNETADAPTER_FLUX pAdapterFlux, int nIndex )

{

// Declare and initialize variables

DWORD dwRetVal = 0;

// Make an initial call to GetIfTable to get the

// necessary size into the dwSize variable

if(m_ifTable == NULL)

{

if (GetIfTable(m_ifTable, &m_dwTableSize, 0) == ERROR_INSUFFICIENT_BUFFER) 

{

m_ifTable = (MIB_IFTABLE *) malloc (m_dwTableSize);

}

}

// Make a second call to GetIfTable to get the 

// actual data we want

if ((dwRetVal = GetIfTable(m_ifTable, &m_dwTableSize, 0)) != NO_ERROR) 

{

return FALSE;

}

int nPos = 0;

for(int i = 0; i < (int)m_ifTable->dwNumEntries; i++)

{

if(m_ifTable->table[i].dwIndex == (DWORD)nIndex)

{

nPos = i;

break;

}

}

if(nPos == (int)m_ifTable->dwNumEntries)

return FALSE;

if(m_parrAdapterTable == NULL)

{

m_parrAdapterTable = new ADAPTER_TABLE[m_ifTable->dwNumEntries];

memset(m_parrAdapterTable,0,m_ifTable->dwNumEntries * sizeof(ADAPTER_TABLE));

m_parrAdapterTable[nPos].dwOldInOctets = m_ifTable->table[nPos].dwInOctets;

m_parrAdapterTable[nPos].dwOldOutOctets = m_ifTable->table[nPos].dwOutOctets;

return TRUE;

}

//in

pAdapterFlux->fInCurrentFlux = (float)((m_ifTable->table[nPos].dwInOctets - m_parrAdapterTable[nPos].dwOldInOctets) * 8.0/1000.0);

m_parrAdapterTable[nPos].dwOldInOctets = m_ifTable->table[nPos].dwInOctets;

if(pAdapterFlux->fInCurrentFlux > m_parrAdapterTable[nPos].fInMaxFlux) 

m_parrAdapterTable[nPos].fInMaxFlux = pAdapterFlux->fInCurrentFlux;

pAdapterFlux->fInMaxFlux = m_parrAdapterTable[nPos].fInMaxFlux;

m_parrAdapterTable[nPos].fInAverageFlux = (float)(m_parrAdapterTable[nPos].fInAverageFlux + (pAdapterFlux->fInCurrentFlux - m_parrAdapterTable[nPos].fInAverageFlux) / (m_parrAdapterTable[nPos].dwTimes + 1.0));

pAdapterFlux->fInAverageFlux = m_parrAdapterTable[nPos].fInAverageFlux;

//out

pAdapterFlux->fOutCurrentFlux = (float)((m_ifTable->table[nPos].dwOutOctets - m_parrAdapterTable[nPos].dwOldOutOctets) * 8.0/1000.0);

m_parrAdapterTable[nPos].dwOldOutOctets = m_ifTable->table[nPos].dwOutOctets;

if(pAdapterFlux->fOutCurrentFlux > m_parrAdapterTable[nPos].fOutMaxFlux) 

m_parrAdapterTable[nPos].fOutMaxFlux = pAdapterFlux->fOutCurrentFlux;

pAdapterFlux->fOutMaxFlux = m_parrAdapterTable[nPos].fOutMaxFlux;

m_parrAdapterTable[nPos].fOutAverageFlux = (float)(m_parrAdapterTable[nPos].fOutAverageFlux + (pAdapterFlux->fOutCurrentFlux - m_parrAdapterTable[nPos].fOutAverageFlux) / (m_parrAdapterTable[nPos].dwTimes + 1.0));

pAdapterFlux->fOutAverageFlux = m_parrAdapterTable[nPos].fOutAverageFlux;

m_parrAdapterTable[nPos].dwTimes++;

return TRUE;

}

//return 0 success

//return 1 ERROR_INSUFFICIENT_BUFFER

//return -1 failed

BOOL CTSysWatch::GetNetAdapterInfo(LPNETINTERFACE_INFO pIfInfo,PDWORD pdwCount)

{

// Declare and initialize variables

DWORD dwRetVal = 0;

// Make an initial call to GetIfTable to get the

// necessary size into the dwSize variable

if(m_ifTable == NULL)

{

if (GetIfTable(m_ifTable, &m_dwTableSize, 0) == ERROR_INSUFFICIENT_BUFFER) 

{

m_ifTable = (MIB_IFTABLE *) malloc (m_dwTableSize);

}

}

// Make a second call to GetIfTable to get the 

// actual data we want

if ((dwRetVal = GetIfTable(m_ifTable, &m_dwTableSize, 0)) != NO_ERROR) 

{

return -1;

}

if(*pdwCount < m_ifTable->dwNumEntries)

{

*pdwCount = m_ifTable->dwNumEntries;

return 1;

}

for(int i = 0; i < (int)m_ifTable->dwNumEntries; i++)

{

pIfInfo[i].dwIndex = m_ifTable->table[i].dwIndex;

pIfInfo[i].dwType = m_ifTable->table[i].dwType;

memcpy(pIfInfo[i].bDescr,m_ifTable->table[i].bDescr,MAXLEN_IFDESCR);

}

return 0;

}

呼叫:
char szTmp[25] = {0};
NETADAPTER_FLUX AdapterFlux = {0};

GetNetAdapterFlux(&AdapterFlux);
memset(szTmp,0x00,25);
sprintf(szTmp,"%.2fk/%.2fk",AdapterFlux.fInCurrentFlux,AdapterFlux.fOutCurrentFlux);