WebTelnetScreenVerifyField Function


Verifies field content in a rendered screen in an active Telnet connection.

Include file



WebTelnetScreenVerifyField( in  hWeb        : number,
                            in  nFieldIndex : number,
                            in  sVerify     : string,
                            in  nOptions    : number optional,
                            in  nSeverity   : number optional := SEVERITY_ERROR,
                            in  nTextLength : number optional,
                            out sRecv       : string optional ) : boolean;

Return value

  • true if the operation succeeded

  • false otherwise

Parameter Description
hWeb Valid handle to a Web connection created by WebTcpipConnect and set to Telnet mode using WebTcpipSetTelnetMode.
nFieldIndex 1-based screen field index of which value should be used for comparison.
sVerify Text to be compared.
nOptions By default the retrieved content has to be equal with the compared sVerify string, case-insensitively (optional). Comparison options are:
  • TELNET_FLAG_EQUAL: Comparison is made against both whole strings. (default)

  • TELNET_FLAG_CASE_SENSITIVE: Perform comparison case-sensitively.

  • TELNET_FLAG_IS_DIFFERENT: Negates the logical comparison.

  • TELNET_FLAG_IGNORE_WHITE_SPACE: All whitespaces in both compared strings are cut before comparison is performed.

  • TELNET_FLAG_CONTAINS: Compared string must occur within the retrieved content.

  • TELNET_FLAG_FROM_LEFT: The retrieved content only has to begin with the compared string.

  • TELNET_FLAG_TRIM_LEFT: Leading blanks are trimmed from retrieved content before comparison.

  • TELNET_FLAG_TRIM_RIGHT: Trailing blanks are trimmed from retrieved content before comparison.

  • TELNET_FLAG_TRIM_BOTH: Rendered text is trimmed from both sides before comparison.

  • TELNET_FLAG_FROM_RIGHT: Comparison is made from the right of the retrieved content.

nSeverity Optional: Severity of the error that is raised if the verification fails. Can be one of the following values:
  • SEVERITY_SUCCESS: Success; no error (numerical value: 0)
  • SEVERITY_INFORMATIONAL: Informational; no error (numerical value: 1)
  • SEVERITY_WARNING: Warning; no error (numerical value: 2)
  • SEVERITY_ERROR: (Default) Error; simulation continues (numerical value: 3)
  • SEVERITY_TRANS_EXIT: Error; the active transaction is aborted (numerical value: 4)
  • SEVERITY_PROCESS_EXIT: Error; the simulation is aborted (numerical value: 5)
nTextLength Length of screen portion to be compared with sVerify (optional). If omitted or 0, the length of sVerify is taken.
sRecv Optional string variable where field content is placed (optional).


  transaction TInit
    StrSetHostCP(1148); // 1148  (IBM EBCDIC - International (500 + Euro))
  end TInit;
  transaction TMain
    hWeb0     : number;
    iFieldPos : number;
    sRecv     : string;
    WebTcpipConnect(hWeb0, "My.TelnetHost.IP", WEB_PORT_TELNET); // Port: 23
    WebTcpipSetTelnetMode(hWeb0, TERMINAL_TYPE_3270, 80, 24, true, TELNET_MODEOPT_RFC_1576 | TELNET_MODEOPT_AUTO_RECV);
    WebTelnetRecvCommand(hWeb0, TELNET_CMD_DO, TELNET_OPT_TerminalType);
    WebTelnetSendCommand(hWeb0, TELNET_CMD_WILL, TELNET_OPT_TerminalType);
    WebTelnetRecvSubNegotiation(hWeb0, TELNET_OPT_TerminalType);
    WebTelnetSendTerminalType(hWeb0, "IBM-3278-2-E");
    WebTelnetRecvCommand(hWeb0, TELNET_CMD_DO, TELNET_OPT_EndOfRecord);
    WebTelnetRecvCommand(hWeb0, TELNET_CMD_WILL, TELNET_OPT_EndOfRecord);
    WebTelnetRecvCommand(hWeb0, TELNET_CMD_DO, TELNET_OPT_TransmitBinary);
    WebTelnetRecvCommand(hWeb0, TELNET_CMD_WILL, TELNET_OPT_TransmitBinary);
    WebTelnetSendCommand(hWeb0, TELNET_CMD_WILL, TELNET_OPT_EndOfRecord);
    WebTelnetSendCommand(hWeb0, TELNET_CMD_DO, TELNET_OPT_EndOfRecord);
    WebTelnetSendCommand(hWeb0, TELNET_CMD_WILL, TELNET_OPT_TransmitBinary);
    WebTelnetSendCommand(hWeb0, TELNET_CMD_DO, TELNET_OPT_TransmitBinary);
    WebTelnetRecvCommand(hWeb0, TELNET_CMD_DO, TELNET_OPT_TransmitBinary);
    WebTelnetRecvCommand(hWeb0, TELNET_CMD_WILL, TELNET_OPT_TransmitBinary);
      "\h88001181A600000B0100005000180050" // ····¦······P···P 00000000
      "\h001800168186000800F4F1F1F2F2F3F3" // ·········ôññòòóó 00000010
      "\hF4F4F5F5F6F6F7F7000D81870400F0F1" // ôôõõöö÷÷······ðñ 00000020
      "\hF1F2F2F4F40007818800010200178181" // ñòòôô··········· 00000030
      "\h01000050001801000100030004000909" // ···P············ 00000040
      "\h0C0780001B81858200090C0000000007" // ················ 00000050

      "\h00000002B900250100F103C301360006" // ····¹·%··ñ·Ã·6·· 00000060
      "\h81990000001281970000080008000101" // ················ 00000070
      "\h000B0401C0C1000981A80200F0FFFFFF" // ····ÀÁ···¨··ð··· 00000080

      "\hFF000C81950000081108110101000F81" // ················ 00000090
      "\h80A687888185869997A89580"); // ·¦·······¨··  000000A0  
    WebTelnetScreenRecvRecordsUntilCursor(hWeb0, 16, 23, sRecv);
    sRecv := WebTelnetScreenGetField(hWeb0, 1);
    WebTelnetSendRecord(hWeb0, "\h7D5B6F115B6F" + StrToHostCP("1"));
    if (not WebTelnetScreenVerifyField(hWeb0, 1, StrToHostCP("1"))) or (sRecv = "") then
      WebTcpipShutdown(hWeb0);    else
      WebTelnetSendRecord(hWeb0, "\h7D5B6F115B6F" + StrToHostCP("1"));
      WebTelnetScreenRecvRecordsUntilStatus(hWeb0, "Keyboard Locked", "false");
      WebTelnetSendRecord(hWeb0, "\h7D5BF0115BF0" + StrToHostCP("12"));
      WebTelnetScreenRecvRecordsUntilText(hWeb0, 6, 22, "Choice: ");    
      WebTelnetSendRecord(hWeb0, "\h7D5A5E115A5E" + StrToHostCP("12"));
      WebTelnetScreenRecvRecordsUntilField(hWeb0, 1, " ");
  end TMain;