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 程式師世界 >> 編程語言 >> Visual Basic語言 >> VB綜合教程 >> 在VB中如何使用ping命令

在VB中如何使用ping命令

編輯:VB綜合教程
BASModule模塊
  把以下代碼回到BASModule模塊:

OptionExplicit
  PrivateConstIP_SUCCESSAsLong=0
  PrivateConstIP_STATUS_BASEAsLong=11000
  PrivateConstIP_BUF_TOO_SMALLAsLong=(11000 1)
  PrivateConstIP_DEST_NET_UNREACHABLEAsLong=(11000 2)
  PrivateConstIP_DEST_HOST_UNREACHABLEAsLong=(11000 3)
  PrivateConstIP_DEST_PROT_UNREACHABLEAsLong=(11000 4)
  PrivateConstIP_DEST_PORT_UNREACHABLEAsLong=(11000 5)
  PrivateConstIP_NO_RESOURCESAsLong=(11000 6)
  PrivateConstIP_BAD_OPTIONAsLong=(11000 7)
  PrivateConstIP_HW_ERRORAsLong=(11000 8)
  PrivateConstIP_PACKET_TOO_BIGAsLong=(11000 9)
  PrivateConstIP_REQ_TIMED_OUTAsLong=(11000 10)
  PrivateConstIP_BAD_REQAsLong=(11000 11)
  PrivateConstIP_BAD_ROUTEAsLong=(11000 12)
  PrivateConstIP_TTL_EXPIRED_TRANSITAsLong=(11000 13)
  PrivateConstIP_TTL_EXPIRED_REASSEMAsLong=(11000 14)
  PrivateConstIP_PARAM_PROBLEMAsLong=(11000 15)
  PrivateConstIP_SOURCE_QUENCHAsLong=(11000 16)
  PrivateConstIP_OPTION_TOO_BIGAsLong=(11000 17)
  PrivateConstIP_BAD_DESTINATIONAsLong=(11000 18)
  PrivateConstIP_ADDR_DELETEDAsLong=(11000 19)
  PrivateConstIP_SPEC_MTU_CHANGEAsLong=(11000 20)
  PrivateConstIP_MTU_CHANGEAsLong=(11000 21)
  PrivateConstIP_UNLOADAsLong=(11000 22)
  PrivateConstIP_ADDR_ADDEDAsLong=(11000 23)
  PrivateConstIP_GENERAL_FAILUREAsLong=(11000 50)
  PrivateConstMAX_IP_STATUSAsLong=(11000 50)
  PrivateConstIP_PENDINGAsLong=(11000 255)
  PrivateConstPING_TIMEOUTAsLong=500
  PrivateConstWS_VERSION_REQDAsLong=&H101
  PrivateConstMIN_SOCKETS_REQDAsLong=1
  PrivateConstSOCKET_ERRORAsLong=-1
  PrivateConstINADDR_NONEAsLong=&HFFFFFFFF
  PrivateConstMAX_WSADescriptionAsLong=256
  PrivateConstMAX_WSASYSStatusAsLong=128
  
  PrivateTypeICMP_OPTIONS
  TtlAsByte
  TosAsByte
  FlagsAsByte
  OptionsSizeAsByte
  OptionsDataAsLong
  EndType
  
  PublicTypeICMP_ECHO_REPLY
  AddressAsLong
  statusAsLong
  RoundTripTimeAsLong
  DataSizeAsLong注釋:formerlyinteger
  注釋:ReservedAsInteger
  DataPointerAsLong
  OptionsAsICMP_OPTIONS
  DataAsString*250
  EndType
  
  PrivateTypeWSADATA
  wVersionAsInteger
  wHighVersionAsInteger
  szDescription(0ToMAX_WSADescription)AsByte
  szSystemStatus(0ToMAX_WSASYSStatus)AsByte
  wMaxSocketsAsLong
  wMaxUDPDGAsLong
  dwVendorInfoAsLong
  EndType
  
  PrivateDeclareFunctionIcmpCreateFileLib"icmp.dll"()AsLong
  
  PrivateDeclareFunctionIcmpCloseHandleLib"icmp.dll"(ByValIcmpHandleAsLong)AsLong
  
  PrivateDeclareFunctionIcmpSendEchoLib"icmp.dll"(ByValIcmpHandleAsLong,ByValDestinationAddressAsLong,ByValRequestDataAsString,ByValRequestSizeAsLong,ByValRequestOptionsAsLong,ReplyBufferAsICMP_ECHO_REPLY,ByValReplySizeAsLong,ByValTimeoutAsLong)AsLong
  
  PrivateDeclareFunctionWSAGetLastErrorLib"WSOCK32.DLL"()AsLong
  
  PrivateDeclareFunctionWSAStartupLib"WSOCK32.DLL"(ByValwVersionRequiredAsLong,lpWSADATAAsWSADATA)AsLong
  
  PrivateDeclareFunctionWSACleanupLib"WSOCK32.DLL"()AsLong
  
  PrivateDeclareFunctiongethostnameLib"WSOCK32.DLL"(ByValszHostAsString,ByValdwHostLenAsLong)AsLong
  
  PrivateDeclareFunctiongethostbynameLib"WSOCK32.DLL"(ByValszHostAsString)AsLong
  
  PrivateDeclareSubCopyMemoryLib"kernel32"Alias"RtlMoveMemory"(xDestAsAny,xSourceAsAny,ByValnbytesAsLong)
  
  PrivateDeclareFunctioninet_addrLib"WSOCK32.DLL"(ByValsAsString)AsLong
  
  PublicFunctionGetStatusCode(statusAsLong)AsString
  
  DimmsgAsString
  
  SelectCasestatus
  CaseIP_SUCCESS:msg="ipsuccess"
  CaseINADDR_NONE:msg="inet_addr:badIPformat"
  CaseIP_BUF_TOO_SMALL:msg="ipbuftoo_small"
  CaseIP_DEST_NET_UNREACHABLE:msg="ipdestnetunreachable"
  CaseIP_DEST_HOST_UNREACHABLE:msg="ipdesthostunreachable"
  CaseIP_DEST_PROT_UNREACHABLE:msg="ipdestprotunreachable"
  CaseIP_DEST_PORT_UNREACHABLE:msg="ipdestportunreachable"
  CaseIP_NO_RESOURCES:msg="ipnoresources"
  CaseIP_BAD_OPTION:msg="ipbadoption"
  CaseIP_HW_ERROR:msg="iphw_error"
  CaseIP_PACKET_TOO_BIG:msg="ippackettoo_big"
  CaseIP_REQ_TIMED_OUT:msg="ipreqtimedout"
  CaseIP_BAD_REQ:msg="ipbadreq"
  CaseIP_BAD_ROUTE:msg="ipbadroute"
  CaseIP_TTL_EXPIRED_TRANSIT:msg="ipttlexpiredtransit"
  CaseIP_TTL_EXPIRED_REASSEM:msg="ipttlexpiredreassem"
  CaseIP_PARAM_PROBLEM:msg="ipparam_problem"
  CaseIP_SOURCE_QUENCH:msg="ipsourcequench"
  CaseIP_OPTION_TOO_BIG:msg="ipoptiontoo_big"
  CaseIP_BAD_DESTINATION:msg="ipbaddestination"
  CaseIP_ADDR_DELETED:msg="ipaddrdeleted"
  CaseIP_SPEC_MTU_CHANGE:msg="ipspecmtuchange"
  CaseIP_MTU_CHANGE:msg="ipmtu_change"
  CaseIP_UNLOAD:msg="ipunload"
  CaseIP_ADDR_ADDED:msg="ipaddradded"
  CaseIP_GENERAL_FAILURE:msg="ipgeneralfailure"
  CaseIP_PENDING:msg="ippending"
  CasePING_TIMEOUT:msg="pingtimeout"
  CaseElse:msg="unknownmsgreturned"
  EndSelect
  
  GetStatusCode=CStr(status)&"["&msg&"]"
  EndFunction
  
  PublicFunctionPing(sAddressAsString,
  sDataToSendAsString,
  ECHOAsICMP_ECHO_REPLY)AsLong
  
  注釋:IfPingsucceeds:
  注釋:.RoundTripTime=timeinmsforthepingtocomplete,
  注釋:.Dataisthedatareturned(NULLterminated)
  注釋:.AddressistheIpaddressthatactuallyreplied
  注釋:.DataSizeisthesizeofthestringin.Data
  注釋:.Statuswillbe0
  注釋:
  注釋:IfPingfails.Statuswillbetheerrorcode
  
  DimhPortAsLong
  DimdwAddressAsLong
  
  注釋:converttheaddressintoalongrepresentation
  dwAddress=inet_addr(sAddress)
  
  注釋:ifavalidaddress..
  IfdwAddress<>INADDR_NONEThen
  
  注釋:openaport
  hPort=IcmpCreateFile()
  
  注釋:andifsuccessful,
  IfhPortThen
  
  注釋:pingit.
  CallIcmpSendEcho(hPort,dwAddress,sDataToSend,Len(sDataToSend),0,ECHO,Len(ECHO),PING_TIMEOUT)
  
  注釋:returnthestatusaspingsuccesandclose
  Ping=ECHO.status
  CallIcmpCloseHandle(hPort)
  
  EndIf
  
  Else:
  注釋:theaddressformatwasprobablyinvalid
  Ping=INADDR_NONE
  
  EndIf
  
  EndFunction
  
  
  PublicSubSocketsCleanup()
  
  IfWSACleanup()<>0Then
  MsgBox"WindowsSocketserroroccurredinCleanup.",vbExclamation
  EndIf
  
  EndSub
  
  
  PublicFunctionSocketsInitialize()AsBoolean
  
  DimWSADAsWSADATA
  
  SocketsInitialize=WSAStartup(WS_VERSION_REQD,WSAD)=IP_SUCCESS
  
  EndFunction
  
  注釋:--endblock--注釋:
  
  --------------------------------------------------------------------------------------------
  
  窗體代碼
  把以下代碼回到窗體裡
  OptionExplicit
  
  PrivateSubCommand1_Click()
  
  DimECHOAsICMP_ECHO_REPLY
  DimposAsLong
  DimsuccessAsLong
  
  IfSocketsInitialize()Then
  
  注釋:pingtheippassingtheaddress,text
  注釋:tosend,andtheECHOstructure.
  success=Ping((Text1.Text),(Text2.Text),ECHO)
  
  注釋:displaytheresults
  Text4(0).Text=GetStatusCode(success)
  Text4(1).Text=ECHO.Address
  Text4(2).Text=ECHO.RoundTripTime&"ms"
  Text4(3).Text=ECHO.DataSize&"bytes"
  
  IfLeft$(ECHO.Data,1)<>Chr$(0)Then
  pos=InStr(ECHO.Data,Chr$(0))
  Text4(4).Text=Left$(ECHO.Data,pos-1)
  EndIf
  
  Text4(5).Text=ECHO.DataPointer
  
  SocketsCleanup
  
  Else
  
  MsgBox"WindowsSocketsfor32bitWindows"&"environmentsisnotsuccessfullyresponding."
  
  EndIf
  
  EndSub

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