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📄 cls.ftp_service.openftpconnection.htm

📁 FTP Services for Visual Foxpro
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<title>Method OpenFTPConnection of class FTP_SERVICE</title>
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<div class="diaxp_mhead">OpenFTPConnection Method</div>
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<table class="clear_table">
 <tbody>
  <tr><td>Class: </td><td><a href="cls.ftp_service.htm" title="Skip to class ftp_service">FTP_SERVICE</a></td></tr>
 </tbody>
</table>
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<div class="diaxp_mbody">
<!-- Created with _diamp_pdm_ab by Agnes Beste    03.09.2007 19:34 -->
 <div class="PDM_AB_Descr"><!-- Descr Begin -->
This method is internal, is called from  <a class="PDM_AB_See" href="../../code/ftp.prg/cls.ftp_service.openinternet.htm" title="Skip to method FTP_SERVICE::OpenInternet()">FTP_SERVICE::OpenInternet()</a> and do connect to FTP server.

 </div><!-- Descr End -->

 <div class="DIAMP_PDM_AB_Syntax"><!-- Syntax Begin -->
  <div class="SColor">
   <div class="RetVal"><a href="#_26715XTHF">RetVal</a>&nbsp;</div>   <div class="RetValEq">=</div>   <div class="PEM">
    Object.OpenFTPConnection
   </div>
   <div class="Para">
    (@<a href="#_26715XTHG">lcCurrentFolder</a>)
   </div>
   <div style="clear: both"></div>
  </div><!-- Colour End -->
 </div><!-- Syntax End -->

 <div class="DIAMP_PDM_AB_Params"><!-- Parameters Begin -->
  <span class="PDM_AB_Head">
   Parameter
  </span>
  <dl class="DIAMP_PDM_AB_Params_List">
   <dt class="dt_">
    <a class="DIAMP_PDM_AB_Params_ParaName" id="_26715XTHG" name="_26715XTHG">
     <span class="PDMEXPR PDMNor" ><span class='PDMVar'>lcCurrentFolder</span></span>

    </a>
   </dt>
   <dd class="dd_">
    <span class="Params_Short">
     Current folder
    </span>
    <table class="Params_Info">
     <colgroup>
      <col class="ColumnValue" />
      <col class="ColumnData" />
     </colgroup>
     <tbody>
      <tr>
       <td class="CellValue">Type</td>
       <td class="CellData">Character</td>
      </tr>
      <tr>
       <td class="CellValue">By reference</td>
       <td class="CellData">&nbsp;</td>
      </tr>
      <tr>
       <td class="CellValue">Direction</td>
       <td class="CellData">Input</td>
      </tr>
     </tbody>
    </table>
    <span class="Params_Detail">
The startup folder afater connecting to FTP server. If this parameter empty, then startup folder will be default  FTP server's current folder fro logiing user.
    </span>
   </dd>
  </dl>
 </div><!-- Parameters End -->

 <div class="DIAMP_PDM_AB_RetVal"><!-- Returns Begin -->
  <div>
   <span class="PDM_AB_Head">
    <a id="_26715XTHF" name="_26715XTHF">
     Return value
    </a>
   </span> <span class="RetVal_Ttype">Boolean</span>
  </div>
  <div class="PDM_AB_Body">
The return value is <span class="PDMEXPR PDMNor" ><span class='PDMLit'>.T.</span></span>
 if is connected to ftp server or <span class="PDMEXPR PDMNor" ><span class='PDMLit'>.F.</span></span>
 is not.
  </div>
 </div><!-- Returns End -->

 <div class="PDM_AB_Example"><!-- Example Begin -->
  <span class="PDM_AB_Head">
   Example
  </span>
  <div class="PDM_AB_Body">
See source code of method <a class="PDM_AB_See" href="../../code/ftp.prg/cls.ftp_service.openinternet.htm" title="Skip to method FTP_SERVICE::OpenInternet()">FTP_SERVICE::OpenInternet()</a>
  </div>
 </div><!-- Example End -->

 <div class="PDM_AB_SeeAlso"><!-- SeeAlso Begin -->
  <span class="PDM_AB_Head">
   See also
  </span>
  <div class="PDM_AB_Body">
<a class="PDM_AB_See" href="../../code/ftp.prg/cls.ftp_service.getextendederror.htm" title="Skip to method FTP_SERVICE::GetExtendedError()">FTP_SERVICE::GetExtendedError()</a>&nbsp;|
<a class="PDM_AB_See" href="../../code/ftp.prg/cls.ftp_service.closeftpconnection.htm" title="Skip to method FTP_SERVICE::CloseFTPConnection()">FTP_SERVICE::CloseFTPConnection()</a>&nbsp;|
<a class="PDM_AB_See" href="../../code/ftp.prg/cls.ftp_service.closeinternet.htm" title="Skip to method FTP_SERVICE::CloseInternet()">FTP_SERVICE::CloseInternet()</a>&nbsp;|
<a class="PDM_AB_See" href="../../code/ftp.prg/cls.ftp_service.getftpfile.htm" title="Skip to method FTP_SERVICE::GetFTPFile()">FTP_SERVICE::GetFTPFile()</a>&nbsp;|
<a class="PDM_AB_See" href="../../code/ftp.prg/cls.ftp_service.readftpfile.htm" title="Skip to method FTP_SERVICE::ReadFTPFile()">FTP_SERVICE::ReadFTPFile()</a>&nbsp;|
<a class="PDM_AB_See" href="../../code/ftp.prg/cls.ftp_service.putftpfile.htm" title="Skip to method FTP_SERVICE::PutFTPFile()">FTP_SERVICE::PutFTPFile()</a>&nbsp;|
<a class="PDM_AB_See" href="../../code/ftp.prg/cls.ftp_service.writeftpfile.htm" title="Skip to method FTP_SERVICE::WriteFTPFile()">FTP_SERVICE::WriteFTPFile()</a>&nbsp;|
<a class="PDM_AB_See" href="../../code/ftp.prg/cls.ftp_service.ftpcommand.htm" title="Skip to method FTP_SERVICE::FTPCommand()">FTP_SERVICE::FTPCommand()</a>&nbsp;|
<a class="PDM_AB_See" href="../../code/ftp.prg/cls.ftp_service.deleteftpfile.htm" title="Skip to method FTP_SERVICE::DeleteFTPFile()">FTP_SERVICE::DeleteFTPFile()</a>&nbsp;|
<a class="PDM_AB_See" href="../../code/ftp.prg/cls.ftp_service.renameftpfile.htm" title="Skip to method FTP_SERVICE::RenameFTPFile()">FTP_SERVICE::RenameFTPFile()</a>&nbsp;|
<a class="PDM_AB_See" href="../../code/ftp.prg/cls.ftp_service.createftpdirectory.htm" title="Skip to method FTP_SERVICE::CreateFTPDirectory()">FTP_SERVICE::CreateFTPDirectory()</a>&nbsp;|
<a class="PDM_AB_See" href="../../code/ftp.prg/cls.ftp_service.removeftpdirectory.htm" title="Skip to method FTP_SERVICE::RemoveFTPDirectory()">FTP_SERVICE::RemoveFTPDirectory()</a>&nbsp;|
<a class="PDM_AB_See" href="../../code/ftp.prg/cls.ftp_service.changeftpdirectory.htm" title="Skip to method FTP_SERVICE::ChangeFTPDirectory()">FTP_SERVICE::ChangeFTPDirectory()</a>&nbsp;|
<a class="PDM_AB_See" href="../../code/ftp.prg/cls.ftp_service.getftpdirectory.htm" title="Skip to method FTP_SERVICE::GetFTPDirectory()">FTP_SERVICE::GetFTPDirectory()</a>&nbsp;|
<a class="PDM_AB_See" href="../../code/ftp.prg/cls.ftp_service.getftpdirectoryarray.htm" title="Skip to method FTP_SERVICE::GetFTPDirectoryArray()">FTP_SERVICE::GetFTPDirectoryArray()</a>&nbsp;|
<a class="PDM_AB_See" href="../../code/ftp.prg/cls.ftp_service.openinternet.htm" title="Skip to method FTP_SERVICE::OpenInternet()">FTP_SERVICE::OpenInternet()</a>
  </div><!-- Body End -->
  <!--- "Applies to" need to be inserted here---->
  <PlaceAppliesTo_Here />
  <!--- /"Applies to" need to be inserted here---->
 </div><!-- SeeAlso End -->


<!-- /Created with _diamp_pdm_ab by Agnes Beste    03.09.2007 19:34 -->

 <div class="SC">
  <img onclick="ExpandSC('SP_1',-1);"class="imgEC" src="../../imgs/uptab.gif" alt="Expand/Collapse source code of procedure OpenFTPConnection" id="IMG_SP_1" />
  <span ondblclick="ExpandSC('SP_1',-1);" class="SCCaption"><a name="FTP_SERVICE">Source Code</a></span>
  <div ondblclick="ExpandSC('SP_1',-1);" class="SCE" id="TX_SP_1">
<!-- Code Begin -->
<pre class="PDMCODE PDMNor" >      <span class='PDMResK'>LPARAMETERS</span> <span class='PDMVar'>OPT_INP</span> <span class='PDMVar'>lcCurrentFolder</span>
      <span class='PDMResK'>LOCAL</span> <span class='PDMVar'>nHandle</span><span class='PDMOper'>,</span> <span class='PDMVar'>lnConnect_Handle</span>
      <span class='PDMResK'>IF</span> <span class='PDMResK'>This</span><span class='PDMOper'>.</span><span class='PDMVar'>nConnect_Handle</span><span class='PDMOper'>&gt;</span><span class='PDMLit'>0</span> <span class='PDMOper'>AND</span> <span class='PDMLit'>.T.</span> <span class='PDMCom'>&amp;&amp; is Valid??</span>
         <span class='PDMResK'>RETURN</span> <span class='PDMLit'>.T.</span>
      <span class='PDMResK'>ENDIF</span>
<span class='PDMCom'>      * Open FTP Site </span>
      <span class='PDMVar'>lnConnect_Handle</span> <span class='PDMOper'>=</span> <span class='PDMVar'>InternetConnect</span><span class='PDMOper'>(</span><span class='PDMResK'>This</span><span class='PDMOper'>.</span><span class='PDMVar'>nInet_Handle</span><span class='PDMOper'>,</span> <span class='PDMOper'>(</span><span class='PDMResK'>This</span><span class='PDMOper'>.</span><span class='PDMVar'>cIPAddress</span><span class='PDMOper'>)</span><span class='PDMOper'>,</span> <span class='PDMResF'>VAL</span><span class='PDMOper'>(</span><span class='PDMResK'>This</span><span class='PDMOper'>.</span><span class='PDMVar'>cPort</span><span class='PDMOper'>)</span><span class='PDMOper'>,</span> <span class='PDMOper'>;</span>
                        <span class='PDMOper'>(</span><span class='PDMResK'>This</span><span class='PDMOper'>.</span><span class='PDMVar'>cUserName</span><span class='PDMOper'>)</span><span class='PDMOper'>,</span> <span class='PDMOper'>(</span><span class='PDMResK'>This</span><span class='PDMOper'>.</span><span class='PDMVar'>cPassword</span><span class='PDMOper'>)</span><span class='PDMOper'>,</span> <span class='PDMVar'>INTERNET_SERVICE_FTP</span><span class='PDMOper'>,</span> <span class='PDMResK'>This</span><span class='PDMOper'>.</span><span class='PDMVar'>nFlags</span><span class='PDMOper'>,</span> <span class='PDMLit'>0</span><span class='PDMOper'>)</span>
      <span class='PDMResK'>This</span><span class='PDMOper'>.</span><span class='PDMVar'>GetExtendedError</span><span class='PDMOper'>(</span><span class='PDMOper'>)</span>
      <span class='PDMResK'>IF</span> <span class='PDMVar'>lnConnect_Handle</span> <span class='PDMOper'>=</span> <span class='PDMLit'>0</span>
         <span class='PDMResK'>RETURN</span> <span class='PDMLit'>.F.</span>
      <span class='PDMResK'>ENDIF</span>

      <span class='PDMResK'>IF</span> <span class='PDMResF'>PCOUNT</span><span class='PDMOper'>(</span><span class='PDMOper'>)</span><span class='PDMOper'>=</span><span class='PDMLit'>0</span> <span class='PDMOper'>OR</span> <span class='PDMResF'>EMPTY</span><span class='PDMOper'>(</span><span class='PDMVar'>lcCurrentFolder</span><span class='PDMOper'>)</span>
         <span class='PDMVar'>lcCurrentFolder</span> <span class='PDMOper'>=</span> <span class='PDMResF'>SPACE</span><span class='PDMOper'>(</span><span class='PDMVar'>MAX_PATH</span><span class='PDMOper'>)</span>      
         <span class='PDMVar'>fResult</span> <span class='PDMOper'>=</span> <span class='PDMVar'>FtpGetCurrentDirectory</span><span class='PDMOper'>(</span><span class='PDMVar'>lnConnect_Handle</span><span class='PDMOper'>,</span> <span class='PDMOper'>@</span><span class='PDMVar'>lcCurrentFolder</span><span class='PDMOper'>,</span> <span class='PDMVar'>MAX_PATH</span><span class='PDMOper'>)</span>
         <span class='PDMResK'>This</span><span class='PDMOper'>.</span><span class='PDMVar'>GetExtendedError</span><span class='PDMOper'>(</span><span class='PDMOper'>)</span>
      <span class='PDMResK'>ELSE</span>
         <span class='PDMVar'>fResult</span> <span class='PDMOper'>=</span> <span class='PDMVar'>FtpSetCurrentDirectory</span><span class='PDMOper'>(</span><span class='PDMVar'>lnConnect_Handle</span><span class='PDMOper'>,</span> <span class='PDMOper'>@</span><span class='PDMVar'>lcCurrentFolder</span><span class='PDMOper'>)</span>
      <span class='PDMResK'>ENDIF</span>

      <span class='PDMResK'>IF</span> <span class='PDMVar'>fResult</span> <span class='PDMOper'>=</span> <span class='PDMLit'>1</span>
         <span class='PDMResK'>This</span><span class='PDMOper'>.</span><span class='PDMVar'>cCurrentDir</span> <span class='PDMOper'>=</span> <span class='PDMResF'>RTRIM</span><span class='PDMOper'>(</span><span class='PDMVar'>lcCurrentFolder</span><span class='PDMOper'>)</span>
         <span class='PDMResK'>This</span><span class='PDMOper'>.</span><span class='PDMVar'>nConnect_Handle</span> <span class='PDMOper'>=</span> <span class='PDMVar'>lnConnect_Handle</span>
         <span class='PDMResK'>RETURN</span> <span class='PDMLit'>.T.</span>
      <span class='PDMResK'>ELSE</span>
         <span class='PDMResK'>This</span><span class='PDMOper'>.</span><span class='PDMVar'>GetExtendedError</span><span class='PDMOper'>(</span><span class='PDMOper'>)</span>     <span class='PDMCom'>&amp;&amp; Only Get extended Error information when there is an error</span>
         <span class='PDMResK'>RETURN</span> <span class='PDMLit'>.F.</span>
      <span class='PDMResK'>ENDIF</span></pre>
 <!-- Code End -->
  </div>
 </div>
</div>
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&copy; 2004-03-23 Robert Abram, &copy; 24.11.2005 Martina Jindr&uacute;
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