Option Explicit
Public Enum OperationalStates
MIB_IF_OPER_STATUS_NON_OPERATIONAL = 0
MIB_IF_OPER_STATUS_UNREACHABLE = 1
MIB_IF_OPER_STATUS_DISCONNECTED = 2
MIB_IF_OPER_STATUS_CONNECTING = 3
MIB_IF_OPER_STATUS_CONNECTED = 4
MIB_IF_OPER_STATUS_OPERATIONAL = 5
End Enum
Public Enum InterfaceTypes
MIB_IF_TYPE_OTHER = 1
MIB_IF_TYPE_ETHERNET = 6
MIB_IF_TYPE_TOKENRING = 9
MIB_IF_TYPE_FDDI = 15
MIB_IF_TYPE_PPP = 23
MIB_IF_TYPE_LOOPBACK = 24
MIB_IF_TYPE_SLIP = 28
End Enum
Public Enum AdminStatuses
MIB_IF_ADMIN_STATUS_UP = 1
MIB_IF_ADMIN_STATUS_DOWN = 2
MIB_IF_ADMIN_STATUS_TESTING = 3
End Enum
Private Const MAXLEN_IFDESCR = 256
Private Const MAXLEN_PHYSADDR = 8
Private Const MAX_INTERFACE_NAME_LEN = 256
Private Const ERROR_NOT_SUPPORTED = 50&
Private Const ERROR_SUCCESS = 0&
Private Type MIB_IFROW
wszName(0 To 511) As Byte
dwIndex As Long '// index of the interface
dwType As Long '// type of interface
dwMtu As Long '// max transmission unit
dwSpeed As Long '// speed of the interface
dwPhysAddrLen As Long '// length of physical address
bPhysAddr(0 To 7) As Byte '// physical address of adapter
dwAdminStatus As Long '// administrative status
dwOperStatus As Long '// operational status
dwLastChange As Long '// last time operational status changed
dwInOctets As Long '// octets received
dwInUcastPkts As Long '// unicast packets received
dwInNUcastPkts As Long '// non-unicast packets received
dwInDiscards As Long '// received packets discarded
dwInErrors As Long '// erroneous packets received
dwInUnknownProtos As Long '// unknown protocol packets received
dwOutOctets As Long '// octets sent
dwOutUcastPkts As Long '// unicast packets sent
dwOutNUcastPkts As Long '// non-unicast packets sent
dwOutDiscards As Long '// outgoing packets discarded
dwOutErrors As Long '// erroneous packets sent
dwOutQLen As Long '// output queue length
dwDescrLen As Long '// length of bDescr member
bDescr(0 To 255) As Byte '// interface description
End Type
Private Declare Function GetIfTable Lib "iphlpapi" (ByRef pIfRowTable As Any, ByRef pdwSize As Long, ByVal bOrder As Long) As Long
Private Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" (ByRef pDest As Any, ByRef pSource As Any, ByVal Length As Long)
Private mvarInterfaces As CInterface 'local copy
Private m_lngBytesReceived As Long
Private m_lngBytesSent As Long
Public Property Set CInterfaces(ByVal vData As CInterfaces)
Set mvarInterfaces = vData
End Property
Public Property Get Interfaces() As CInterfaces
'
Set mvarInterfaces = Nothing
'
Set mvarInterfaces = New CInterfaces
Call InitInterfaces(mvarInterfaces)
'
Set Interfaces = mvarInterfaces
'
End Property
Public Property Get BytesReceived() As Long
BytesReceived = m_lngBytesReceived
End Property
Public Property Get BytesSent() As Long
BytesSent = m_lngBytesSent
End Property
Private Function InitInterfaces(objInterfaces As CInterfaces) As Boolean
'
Dim arrBuffer() As Byte
Dim lngSize As Long
Dim lngRetVal As Long
Dim lngRows As Long
Dim i As Integer
Dim j As Integer
Dim IfRowTable As MIB_IFROW
Dim objInterface As New CInterface
'
lngSize = 0
'
'Reset the BytesReceived and BytesSent properties
'
m_lngBytesReceived = 0
m_lngBytesSent = 0
'
'Call the GetIfTable just to get the buffer size into the lngSize variable
lngRetVal = GetIfTable(ByVal 0&, lngSize, 0)
'
If lngRetVal = ERROR_NOT_SUPPORTED Then
'
'This API works only on Win 98/2000 and NT4 with SP4
MsgBox "IP Helper is not supported by this system."
Exit Function
'
End If
'
'Prepare the buffer
ReDim arrBuffer(0 To lngSize - 1) As Byte
'
'And call the function one more time
lngRetVal = GetIfTable(arrBuffer(0), lngSize, 0)
'
If lngRetVal = ERROR_SUCCESS Then
'
'The first 4 bytes (the Long value) contain the quantity of the table rows
'Get that value into the lngRows variable
CopyMemory lngRows, arrBuffer(0), 4
'
For i = 1 To lngRows
'
'Copy the table row data to the IfRowTable structure
CopyMemory IfRowTable, arrBuffer(4 + (i - 1) * Len(IfRowTable)), Len(IfRowTable)
'
With IfRowTable
'
objInterface.InterfaceDescription = Left(StrConv(.bDescr, vbUnicode), .dwDescrLen)
'
If .dwPhysAddrLen > 0 Then
For j = 0 To .dwPhysAddrLen - 1
objInterface.AdapterAddress = objInterface.AdapterAddress & _
CStr(IIf(.bPhysAddr(j) = 0, "00", Hex(.bPhysAddr(j)))) & "-"
'
Next j
objInterface.AdapterAddress = Left(objInterface.AdapterAddress, Len(objInterface.AdapterAddress) - 1)
End If
'
objInterface.AdminStatus = .dwAdminStatus
objInterface.InterfaceIndex = .dwIndex
objInterface.DiscardedIncomingPackets = .dwInDiscards
objInterface.IncomingErrors = .dwInErrors
objInterface.NonunicastPacketsReceived = .dwInNUcastPkts
objInterface.OctetsReceived = .dwInOctets
objInterface.UnicastPacketsReceived = .dwInUcastPkts
objInterface.UnknownProtocolPackets = .dwInUnknownProtos
objInterface.LastChange = Len(.dwLastChange)
objInterface.MaximumTransmissionUnit = .dwMtu
objInterface.OperationalStatus = .dwOperStatus
objInterface.DiscardedOutgoingPackets = .dwOutDiscards
objInterface.OutgoingErrors = .dwOutErrors
objInterface.NonunicastPacketsSent = .dwOutNUcastPkts
objInterface.OctetsSent = .dwOutOctets
objInterface.OutputQueueLength = .dwOutQLen
objInterface.UnicastPacketsSent = .dwOutUcastPkts
objInterface.Speed = .dwSpeed
objInterface.InterfaceType = .dwType
objInterface.InterfaceName = StrConv(.wszName, vbUnicode)
'
'Collect traffic info for all the interfaces
'
m_lngBytesReceived = m_lngBytesReceived + .dwInOctets
m_lngBytesSent = m_lngBytesSent + .dwOutOctets
'
End With
'
mvarInterfaces.Add objInterface
'
Next i
'
End If
'
End Function
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