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📄 cls.ftp_service.setcachingmethod.htm

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<title>Method SetCachingMethod of class FTP_SERVICE</title>
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<div class="diaxp_mhead">SetCachingMethod Method</div>
<div class="diaxp_mbody_class">

<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>
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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 -->
Changes the current file caching method.
 </div><!-- Descr End -->

 <div class="DIAMP_PDM_AB_Syntax"><!-- Syntax Begin -->
  <div class="SColor">
   <div class="RetVal"><a href="#_26715XTX5">RetVal</a>&nbsp;</div>   <div class="RetValEq">=</div>   <div class="PEM">
    Object.SetCachingMethod
   </div>
   <div class="Para">
    (<a href="#_26715XTX6">nCachingType</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="_26715XTX6" name="_26715XTX6">
     <span class="PDMEXPR PDMNor" ><span class='PDMVar'>nCachingType</span></span>

    </a>
   </dt>
   <dd class="dd_">
    <span class="Params_Short">
     Cache type for internet connection.
    </span>
    <table class="Params_Info">
     <colgroup>
      <col class="ColumnValue" />
      <col class="ColumnData" />
     </colgroup>
     <tbody>
      <tr>
       <td class="CellValue">Type</td>
       <td class="CellData">Numeric</td>
      </tr>
      <tr>
       <td class="CellValue">Direction</td>
       <td class="CellData">Input</td>
      </tr>
     </tbody>
    </table>
    <span class="Params_Detail">
Can be on of the following
<table class="listvalues">
 <tr class="Head"><td>Value</td><td>Description</td></tr>
 <tr><td><span class="PDMEXPR PDMNor" ><span class='PDMVar'>INTERNET_FLAG_DONT_CACHE</span></span>
</td><td>Does not add the returned entity to the cache. This is identical to the preferred value, <span class="PDMEXPR PDMNor" ><span class='PDMVar'>INTERNET_FLAG_NO_CACHE_WRITE</span></span>
.</td></tr>
 <tr><td><span class="PDMEXPR PDMNor" ><span class='PDMVar'>INTERNET_FLAG_HYPERLINK</span></span>
</td><td>Forces a reload if there was no Expires time and no LastModified time returned from the server when determining whether to reload the item from the network.</td></tr>
 <tr><td><span class="PDMEXPR PDMNor" ><span class='PDMVar'>INTERNET_FLAG_MAKE_PERSISTENT</span></span>
</td><td>No longer supported.</td></tr>
 <tr><td><span class="PDMEXPR PDMNor" ><span class='PDMVar'>INTERNET_FLAG_MUST_CACHE_REQUEST</span></span>
</td><td>Identical to the preferred value, <span class="PDMEXPR PDMNor" ><span class='PDMVar'>INTERNET_FLAG_NEED_FILE</span></span>
. Causes a temporary file to be created if the file cannot be cached.</td></tr>
 <tr><td><span class="PDMEXPR PDMNor" ><span class='PDMVar'>INTERNET_FLAG_RELOAD</span></span>
</td><td>Forces a download of the requested file, object, or directory listing from the origin server, not from the cache.</td></tr>
 <tr><td><span class="PDMEXPR PDMNor" ><span class='PDMVar'>INTERNET_FLAG_NO_CACHE_WRITE</span></span>
</td><td>Does not add the returned entity to the cache.</td></tr>
 <tr><td><span class="PDMEXPR PDMNor" ><span class='PDMVar'>INTERNET_FLAG_RESYNCHRONIZE</span></span>
</td><td>Reloads HTTP resources if the resource has been modified since the last time it was downloaded. All FTP and Gopher resources are reloaded.</td></tr>
</table>
Assumed from <a href="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/wininet/wininet/ftpgetfile.asp">MSDN</a>.

    </span>
   </dd>
  </dl>
 </div><!-- Parameters End -->

 <div class="DIAMP_PDM_AB_RetVal"><!-- Returns Begin -->
  <div>
   <span class="PDM_AB_Head">
    <a id="_26715XTX5" name="_26715XTX5">
     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 <span class="PDMEXPR PDMNor" ><span class='PDMVar'>nCachingType</span></span>
 is knowly.
  </div>
 </div><!-- Returns End -->

 <div class="PDM_AB_Example"><!-- Example Begin -->
  <span class="PDM_AB_Head">
   Example
  </span>
  <div class="PDM_AB_Body">

<!-- Code Begin -->
<pre class="PDMCODE PDMNor" >
<span class='PDMOper'>#</span><span class='PDMResK'>INCLUDE</span> <span class='PDMStr'>"ftp.h"</span>
<span class='PDMResK'>LOCAL</span> <span class='PDMVar'>loFTP</span>
<span class='PDMResK'>SET</span> <span class='PDMResK'>PROCEDURE</span> <span class='PDMResK'>TO</span> <span class='PDMVar'>ftp</span><span class='PDMOper'>.</span><span class='PDMVar'>prg</span> <span class='PDMResK'>ADDITIVE</span> 
<span class='PDMVar'>loFTP</span><span class='PDMOper'>=</span><span class='PDMResF'>CREATEOBJECT</span><span class='PDMOper'>(</span><span class='PDMStr'>'ftp_service'</span><span class='PDMOper'>)</span> 
<span class='PDMResK'>IF</span> <span class='PDMVar'>loFTP</span><span class='PDMOper'>.</span><span class='PDMVar'>SetCachingMethod</span><span class='PDMOper'>(</span><span class='PDMVar'>INTERNET_FLAG_DONT_CACHE</span><span class='PDMOper'>)</span>
   <span class='PDMOper'>?</span><span class='PDMVar'>loFTP</span><span class='PDMOper'>.</span><span class='PDMVar'>GetCachingMethod</span><span class='PDMOper'>(</span><span class='PDMOper'>)</span> 
<span class='PDMResK'>ENDIF</span>
<span class='PDMResK'>RELEASE</span> <span class='PDMResK'>PROCEDURE</span> <span class='PDMVar'>ftp</span><span class='PDMOper'>.</span><span class='PDMVar'>prg</span></pre>
 <!-- Code End -->


  </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.getcachingmethod.htm" title="Skip to method FTP_SERVICE::GetCachingMethod()">FTP_SERVICE::GetCachingMethod()</a>&nbsp;|
<a class="PDM_AB_See" href="../../code/ftp.prg/cls.ftp_service.ncachingtype.htm" title="Skip to property FTP_SERVICE::nCachingType">FTP_SERVICE::nCachingType</a>&nbsp;|
<a class="PDM_AB_See" href="../../code/ftp.prg/cls.ftp_service.resetcachingmethod.htm" title="Skip to method FTP_SERVICE::ResetCachingMethod()">FTP_SERVICE::ResetCachingMethod()</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 SetCachingMethod" 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'>INP</span> <span class='PDMVar'>nCachingType</span>

<span class='PDMCom'>      * only change caching type if we have a valid new cache type</span>
      <span class='PDMResK'>IF</span> <span class='PDMVar'>nCachingType</span> <span class='PDMOper'>=</span> <span class='PDMVar'>INTERNET_FLAG_DONT_CACHE</span> <span class='PDMOper'>OR</span> <span class='PDMOper'>;</span>
         <span class='PDMVar'>nCachingType</span> <span class='PDMOper'>=</span> <span class='PDMVar'>INTERNET_FLAG_HYPERLINK</span> <span class='PDMOper'>OR</span> <span class='PDMOper'>;</span>
         <span class='PDMVar'>nCachingType</span> <span class='PDMOper'>=</span> <span class='PDMVar'>INTERNET_FLAG_MUST_CACHE_REQUEST</span> <span class='PDMOper'>OR</span> <span class='PDMOper'>;</span>
         <span class='PDMVar'>nCachingType</span> <span class='PDMOper'>=</span> <span class='PDMVar'>INTERNET_FLAG_NEED_FILE</span> <span class='PDMOper'>OR</span> <span class='PDMOper'>;</span>
         <span class='PDMVar'>nCachingType</span> <span class='PDMOper'>=</span> <span class='PDMVar'>INTERNET_FLAG_NO_CACHE_WRITE</span> <span class='PDMOper'>OR</span> <span class='PDMOper'>;</span>
         <span class='PDMVar'>nCachingType</span> <span class='PDMOper'>=</span> <span class='PDMVar'>INTERNET_FLAG_OFFLINE</span> <span class='PDMOper'>OR</span> <span class='PDMOper'>;</span>
         <span class='PDMVar'>nCachingType</span> <span class='PDMOper'>=</span> <span class='PDMVar'>INTERNET_FLAG_RELOAD</span> <span class='PDMOper'>OR</span> <span class='PDMOper'>;</span>
         <span class='PDMVar'>nCachingType</span> <span class='PDMOper'>=</span> <span class='PDMVar'>INTERNET_FLAG_RESYNCHRONIZE</span>

         <span class='PDMResK'>This</span><span class='PDMOper'>.</span><span class='PDMVar'>nCachingType</span> <span class='PDMOper'>=</span> <span class='PDMResF'>BITOR</span><span class='PDMOper'>(</span><span class='PDMResK'>This</span><span class='PDMOper'>.</span><span class='PDMVar'>nCachingType</span><span class='PDMOper'>,</span><span class='PDMVar'>nCachingType</span><span class='PDMOper'>)</span>
         <span class='PDMResK'>RETURN</span> <span class='PDMLit'>.T.</span>
      <span class='PDMResK'>ENDIF</span>

      <span class='PDMResK'>RETURN</span> <span class='PDMLit'>.F.</span></pre>
 <!-- Code End -->
  </div>
 </div>
</div>
<div class="diaxp_mfoot"> <div class="PDM_AB_CopyRight"><!-- Footer Begin -->
  <hr />
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&copy; 2004-03-23 Robert Abram, &copy; 24.11.2005 Martina Jindr&uacute;
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