vb中如何调用远程dll

如果要求只是这样的话，不需要调用服务器上的dll，可以从客户端取得局域网内其它机器的MAC地址，只需要提供IP。
调用示例：取得 192.168.1.10 这台电脑的 mac?GetMacAddress("192.168.1.10")
'----------------------------------------------------------
'模块功能：获取 mac 地址
'调用方式：GetMacAddress()
'参数说明：可选，Mac 所绑定的 IP 地址，默认为本机地址
'返回值：字符串
'最后修改：2005/11/23
'----------------------------------------------------------'----------------------------------------------------------
'; 关于 GetMacAddress() 的 API 常量与声明Private Const NCBASTAT = &H33
Private Const NCBNAMSZ = 16
Private Const HEAP_ZERO_MEMORY = &H8
Private Const HEAP_GENERATE_EXCEPTIONS = &H4
Private Const NCBRESET = &H32Private Type NCB
    ncb_command As Byte 'Integer
    ncb_retcode As Byte 'Integer
    ncb_lsn As Byte 'Integer
    ncb_num As Byte ' Integer
    ncb_buffer As Long 'String
    ncb_length As Integer
    ncb_callname As String * NCBNAMSZ
    ncb_name As String * NCBNAMSZ
    ncb_rto As Byte 'Integer
    ncb_sto As Byte ' Integer
    ncb_post As Long
    ncb_lana_num As Byte 'Integer
    ncb_cmd_cplt As Byte 'Integer
    ncb_reserve(9) As Byte ' Reserved, must be 0
    ncb_event As Long
End TypePrivate Type ADAPTER_STATUS
    adapter_address(5) As Byte 'As String * 6
    rev_major As Byte 'Integer
    reserved0 As Byte 'Integer
    adapter_type As Byte 'Integer
    rev_minor As Byte 'Integer
    duration As Integer
    frmr_recv As Integer
    frmr_xmit As Integer
    iframe_recv_err As Integer
    xmit_aborts As Integer
    xmit_success As Long
    recv_success As Long
    iframe_xmit_err As Integer
    recv_buff_unavail As Integer
    t1_timeouts As Integer
    ti_timeouts As Integer
    Reserved1 As Long
    free_ncbs As Integer
    max_cfg_ncbs As Integer
    max_ncbs As Integer
    xmit_buf_unavail As Integer
    max_dgram_size As Integer
    pending_sess As Integer
    max_cfg_sess As Integer
    max_sess As Integer
    max_sess_pkt_size As Integer
    name_count As Integer
End TypePrivate Type NAME_BUFFER
    name As String * NCBNAMSZ
    name_num As Integer
    name_flags As Integer
    End Type
    Private Type ASTAT
    adapt As ADAPTER_STATUS
    NameBuff(30) As NAME_BUFFER
End TypePrivate Declare Function Netbios Lib "netapi32.dll" (pncb As NCB) As Byte
Private Declare Sub CopyMemory Lib "KERNEL32" Alias "RtlMoveMemory" (hpvDest As Any, ByVal hpvSource As Long, ByVal cbCopy As Long)
Private Declare Function GetProcessHeap Lib "KERNEL32" () As Long
Private Declare Function HeapAlloc Lib "KERNEL32" (ByVal hHeap As Long, ByVal dwFlags As Long, ByVal dwBytes As Long) As Long
Private Declare Function HeapFree Lib "KERNEL32" (ByVal hHeap As Long, ByVal dwFlags As Long, lpMem As Any) As Long'----------------------------------------------------------
'; 关于 GetHostAddress() 的 API 常量与声明Private Const WS_VERSION_REQD = &H101
Private Const WS_VERSION_MAJOR = WS_VERSION_REQD \ &H100 And &HFF&
Private Const WS_VERSION_MINOR = WS_VERSION_REQD And &HFF&
Private Const MIN_SOCKETS_REQD = 1
Private Const SOCKET_ERROR = -1
Private Const WSADescription_Len = 256
Private Const WSASYS_Status_Len = 128Private Type HOSTENT
   hName As Long
   hAliases As Long
   hAddrType As Integer
   hLength As Integer
   hAddrList As Long
End TypePrivate Type WSADATA
   wversion As Integer
   wHighVersion As Integer
   szDescription(0 To WSADescription_Len) As Byte
   szSystemStatus(0 To WSASYS_Status_Len) As Byte
   iMaxSockets As Integer
   iMaxUdpDg As Integer
   lpszVendorInfo As Long
End TypePrivate Declare Function WSAGetLastError Lib "WSOCK32.DLL" () As Long
Private Declare Function WSAStartup Lib "WSOCK32.DLL" (ByVal wVersionRequired&, lpWSAData As WSADATA) As Long
Private Declare Function WSACleanup Lib "WSOCK32.DLL" () As Long
Private Declare Function gethostbyname Lib "WSOCK32.DLL" (ByVal hostname$) As Long
Private Declare Sub RtlMoveMemory Lib "KERNEL32" (hpvDest As Any, ByVal hpvSource&, ByVal cbCopy&)'-----------------------------
'获取 mac 地址
'-----------------------------
Function GetMacAddress(Optional ByVal sIP As String) As String    Dim sRtn As String
    Dim myNcb As NCB
    Dim bRet As Byte

    Dim aIP() As String
    Dim x As Long
    Dim nIP As String

    If Trim(sIP) = "" Then sIP = GetHostAddress()
    If Trim(sIP) = "" Then Exit Function

    '校验IP地址合法性
    If InStr(sIP, ".") = 0 Then
        GetMacAddress = "无效的IP地址."
        Exit Function
    End If

    aIP = Split(sIP, ".", -1, vbTextCompare)
    If UBound(aIP()) <> 3 Then
        'GetMACAddress = "无效的IP地址."
        Exit Function
    End If

    For x = 0 To UBound(aIP())
        If Len(aIP(x)) > 3 Then
            'GetMACAddress = "无效的IP地址"
            Exit Function
        End If

        If IsNumeric(aIP(x)) = False Then
            'GetMACAddress = "无效的IP地址"
            Exit Function
        End If

        If InStr(aIP(x), ",") <> 0 Then
            'GetMACAddress = "无效的IP地址"
            Exit Function
        End If
'（续上)        If CLng(aIP(x)) > 255 Then
            'GetMACAddress = "无效的IP地址"
            Exit Function
        End If

        If nIP = "" Then
            nIP = String(3 - Len(aIP(x)), "0") & aIP(x)
        Else
            nIP = nIP & "." & String(3 - Len(aIP(x)), "0") & aIP(x)
        End If
    Next

    sRtn = ""
    myNcb.ncb_command = NCBRESET
    bRet = Netbios(myNcb)
    myNcb.ncb_command = NCBASTAT
    myNcb.ncb_lana_num = 0
    myNcb.ncb_callname = nIP & Chr(0)

    Dim myASTAT As ASTAT, tempASTAT As ASTAT
    Dim pASTAT As Long

    myNcb.ncb_length = Len(myASTAT)

    pASTAT = HeapAlloc(GetProcessHeap(), HEAP_GENERATE_EXCEPTIONS Or HEAP_ZERO_MEMORY, myNcb.ncb_length)
    If pASTAT = 0 Then
        'GetMACAddress = "memory allcoation failed!"
        Exit Function
    End If

    myNcb.ncb_buffer = pASTAT
    bRet = Netbios(myNcb)

    If bRet <> 0 Then
        'GetMACAddress = "不能从当前IP地址获得MAC，当前IP地址: " & sIP
        Exit Function
    End If    CopyMemory myASTAT, myNcb.ncb_buffer, Len(myASTAT)

    Dim sTemp As String
    Dim i As Long

    For i = 0 To 5
        sTemp = Hex(myASTAT.adapt.adapter_address(i))
        If i = 0 Then
            sRtn = IIf(Len(sTemp) < 2, "0" & sTemp, sTemp)
        Else
            sRtn = sRtn & Space(1) & IIf(Len(sTemp) < 2, "0" & sTemp, sTemp)
        End If
    Next
    HeapFree GetProcessHeap(), 0, pASTAT

    GetMacAddress = sRtn

End Function'----------------------------
'获取本机IP地址
'----------------------------
Private Function GetHostAddress() As String    If Not SocketsInitialize() Then Exit Function    Dim hostent_addr As Long
    Dim host As HOSTENT
    Dim hostip_addr As Long
    Dim temp_ip_address() As Byte
    Dim i As Integer
    Dim ip_address As String

    hostent_addr = gethostbyname("")

    If hostent_addr = 0 Then
        'MsgBox "Can't resolve name."
        Exit Function
    End If

    RtlMoveMemory host, hostent_addr, LenB(host)
    RtlMoveMemory hostip_addr, host.hAddrList, 4

    ReDim temp_ip_address(1 To host.hLength)
    RtlMoveMemory temp_ip_address(1), hostip_addr, host.hLength

    For i = 1 To host.hLength
        ip_address = ip_address & temp_ip_address(i) & "."
    Next
    ip_address = Mid$(ip_address, 1, Len(ip_address) - 1)

    SocketsCleanup

    GetHostAddress = ip_address

End FunctionPrivate Function hibyte(ByVal wParam As Integer)

   hibyte = wParam \ &H100 And &HFF&

End FunctionPrivate Function lobyte(ByVal wParam As Integer)

   lobyte = wParam And &HFF&

End FunctionPrivate Function SocketsInitialize() As Boolean

   Dim WSAD As WSADATA
   Dim iReturn As Integer
   Dim sLowByte As String, sHighByte As String, sMsg As String

   iReturn = WSAStartup(WS_VERSION_REQD, WSAD)

   If iReturn <> 0 Then
      'MsgBox "Winsock.dll is not responding."
      Exit Function
   End If

   If lobyte(WSAD.wversion) < WS_VERSION_MAJOR Or (lobyte(WSAD.wversion) = WS_VERSION_MAJOR And hibyte(WSAD.wversion) < WS_VERSION_MINOR) Then
      sHighByte = Trim$(Str$(hibyte(WSAD.wversion)))
      sLowByte = Trim$(Str$(lobyte(WSAD.wversion)))
      'sMsg = "Windows Sockets version " & sLowByte & "." & sHighByte
      'sMsg = sMsg & " is not supported by winsock.dll "
      'MsgBox sMsg
      Exit Function
   End If

   If WSAD.iMaxSockets < MIN_SOCKETS_REQD Then
      'sMsg = "This application requires a minimum of "
      'sMsg = sMsg & Trim$(Str$(MIN_SOCKETS_REQD)) & " supported sockets."
      'MsgBox sMsg
      Exit Function
   End If

   SocketsInitialize = True

End FunctionPrivate Sub SocketsCleanup()
   Dim lReturn As Long

   lReturn = WSACleanup()

   'If lReturn <> 0 Then
      'MsgBox "Socket error " & Trim$(Str$(lReturn)) & " occurred in Cleanup "
   '   Exit Sub
   'End If

End Sub

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vb中如何调用远程dll

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