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<concept id="GUID-64E8B920-CD45-4AFF-BD5B-8A7F70F0D59E" xml:lang="en"><title>Responding

to Requests and Cancelling Requests</title><shortdesc>As shown in the previous Privacy Controller API code examples,

The Privacy Controller uses this pointer to respond to privacy requests and

to cancel them. The simple outline code in this section shows how a Privacy

Controller calls these functions. </shortdesc><prolog><metadata><keywords/></metadata></prolog><conbody>

shows how the observer class can respond to privacy requests by calling <xref href="GUID-DA9AD188-944E-36C0-98A6-4F9B6FB2A091.dita#GUID-DA9AD188-944E-36C0-98A6-4F9B6FB2A091/GUID-D3C37C92-5609-31F1-82AB-01AEC99671BB"><apiname>CLbsPrivacyController::RespondNetworkLocationRequest()</apiname></xref>. </p><codeblock xml:space="preserve">// Send a privacy response to the LBS subsystem

void CMyLbsPrivacyControllerObserver::SendResponse(TUint aRequestId,

                                                   CLbsPrivacyController::TRequestVerificationResult aResult)

	{

	// aRequestId is the ID of a privacy request that was previously received

	iController->RespondNetworkLocationRequest(aRequestId, aResult);

	}</codeblock>     </section>

below shows how the observer class can cancel privacy verification requests

by calling <xref href="GUID-DA9AD188-944E-36C0-98A6-4F9B6FB2A091.dita#GUID-DA9AD188-944E-36C0-98A6-4F9B6FB2A091/GUID-C2FC9C84-DB18-3741-BD2F-AC214D679A13"><apiname>CLbsPrivacyController::CancelNetworkLocationRequest()</apiname></xref>.</p><p>There

is no guarantee that a privacy request will be cancelled by calling <xref href="GUID-DA9AD188-944E-36C0-98A6-4F9B6FB2A091.dita#GUID-DA9AD188-944E-36C0-98A6-4F9B6FB2A091/GUID-C2FC9C84-DB18-3741-BD2F-AC214D679A13"><apiname>CLbsPrivacyController::CancelNetworkLocationRequest()</apiname></xref>.

If a privacy request was first accepted and then later cancelled by a Privacy

Controller, the network may accept the request before the cancel message is

processed. The sequence diagrams in LBS <xref href="GUID-D857413A-D5A1-5F9F-A780-C980A9E0BEE0.dita">Privacy

Controller</xref>r describe this situation in more detail.</p><codeblock xml:space="preserve">// Cancel a privacy response

void CMyLbsPrivacyControllerObserver::CancelRequest(TUint aRequestId)

	{

	// aRequestId is the ID of a privacy request that was previously received

	iController->CancelNetworkLocationRequest(aRequestId);

	}</codeblock></section>

</conbody></concept>