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<!DOCTYPE concept
  PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
<concept id="GUID-1D9EA46B-CF0B-4779-97F9-5BECA3622777" xml:lang="en"><title>Enabling
MHTTPDataOptimiser for a transaction </title><prolog><metadata><keywords/></metadata></prolog><conbody>
<p>You must use the <codeph>RHTTPTransaction::SetupHTTPDataOptimiser()</codeph> function
of the <codeph>RHTTPTransaction</codeph> class to enable the <codeph>MHTTPDataOptimiser</codeph> implementation
for a particular transaction. The following code illustrates the <codeph>RHTTPTransaction</codeph> class: </p>
<codeblock id="GUID-81EA4D70-7157-5C17-9B3F-B6B197434642" xml:space="preserve">class RHTTPTransaction
{    
public:
……

RHTTPTransaction::SetupHTTPDataOptimiser (MHTTPDataOptimiser&amp; aHTTPOptimiser);

MHTTPDataOptimiser* RHTTPTransaction::HTTPDataOptimiser ();

};</codeblock>
<p> <b>Note:</b> For more information about how to enable the <codeph>MHTTPDataOptimiser</codeph> implementation
for a transaction, see the <xref href="GUID-F0ABCDE5-F818-526A-81EB-E2D4D87E3231.dita#GUID-F0ABCDE5-F818-526A-81EB-E2D4D87E3231/GUID-F8AA1DE9-791E-5954-84E8-ACCBDFB8D3E3">HTTP
Whole Message Filter example</xref> section. </p>
</conbody></concept>