1 <?xml version="1.0" encoding="utf-8"?>

     2 <!-- Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies) All rights reserved. -->

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     4 "Eclipse Public License v1.0" which accompanies this distribution, 

     5 and is available at the URL "http://www.eclipse.org/legal/epl-v10.html". -->

     6 <!-- Initial Contributors:

     7     Nokia Corporation - initial contribution.

     8 Contributors: 

     9 -->

    10 <!DOCTYPE task

    11   PUBLIC "-//OASIS//DTD DITA Task//EN" "task.dtd">

    12 <task id="GUID-2332AFD7-30F2-5B4D-BBA9-3EA36D8F5E81" xml:lang="en"><title>Call

    13 Barring Status </title><shortdesc>This tutorial describes how to get the call barring status information

    14 with the telephony API for applications </shortdesc><prolog><metadata><keywords/></metadata></prolog><taskbody>

    15 <context><p>The call barring is a supplementary service. The client applications

    16 can determine the status of the service with the <xref href="GUID-97D402C8-B4B7-385A-92B3-D3FCC0CA575A.dita"><apiname>CTelephony</apiname></xref> functions.

    17  </p></context>

    18 

    19 

    20 <steps id="GUID-2BA7DD2F-8ECE-5F05-A534-FA8A213C2E04">

    21 <step id="GUID-ADD96618-3A97-59A3-9A18-C34B46D36CDF"><cmd/>

    22 <info>create a new instance of <xref href="GUID-97D402C8-B4B7-385A-92B3-D3FCC0CA575A.dita"><apiname>CTelephony</apiname></xref>  </info>

    23 </step>

    24 <step id="GUID-41E8A873-C810-5C80-95C4-4247CBAA4952"><cmd/>

    25 <info>use <xref href="GUID-97D402C8-B4B7-385A-92B3-D3FCC0CA575A.dita"><apiname>CTelephony::GetCallBarringStatus()</apiname></xref> to

    26 get the supplementary services status information. </info>

    27 <info>pass a <xref href="GUID-97D402C8-B4B7-385A-92B3-D3FCC0CA575A.dita"><apiname>TCallBarringCondition</apiname></xref> object. </info>

    28 </step>

    29 <step id="GUID-F7F6B090-1A10-5902-8470-BB1A2A3E6A5E"><cmd/>

    30 <info>cancel the request with <xref href="GUID-97D402C8-B4B7-385A-92B3-D3FCC0CA575A.dita"><apiname>CTelephony::EGetCallBarringStatusCancel</apiname></xref> enumeration. </info>

    31 </step>

    32 </steps>

    33 <example id="GUID-C64CDE2B-344E-5341-88B0-624059E85CE5"><title>Call barring

    34 example</title> <codeblock id="GUID-873ED2A9-3B8F-57F5-8A35-46EBD87350B7" xml:space="preserve">#include &lt;e32base.h&gt;

    35 #include <Etel3rdParty.h>

    36 

    37 class CClientApp : public CActive

    38     { 

    39 

    40 private:

    41     CTelephony* iTelephony;

    42     CTelephony::TCallBarringSupplServicesV1 iCallBarringSupplServicesV1;

    43     CTelephony::TCallBarringSupplServicesV1Pckg iCallBarringSupplServicesV1Pckg;

    44 

    45 public:

    46     CClientApp(CTelephony* aTelephony);

    47     void SomeFunction();

    48 

    49 private:

    50     /*

    51        These are the pure virtual methods from CActive that  

    52        MUST be implemented by all active objects

    53        */

    54     void RunL();

    55     void DoCancel();

    56    };

    57 

    58 CClientApp::CClientApp(CTelephony* aTelephony)

    59     : CActive(EPriorityStandard),

    60       iTelephony(aTelephony),

    61       iCallBarringSupplServicesV1Pckg(iCallBarringSupplServicesV1)

    62     {

    63     //default constructor

    64     }

    65 

    66 void CClientApp::SomeFunction()

    67     {

    68     CTelephony::TCallBarringCondition condition = CTelephony::EBarAllOutgoing;

    69     iTelephony->GetCallBarringStatus(iStatus, condition, iCallBarringSupplServicesV1Pckg);

    70     SetActive();

    71     }

    72 

    73 void CClientApp::RunL()

    74     {

    75     if(iStatus==KErrNone)

    76        {

    77        if( iCallBarringSupplServicesV1.iCallBarring == CTelephony::EStatusActive )

    78           {} // The call barring condition is active; 

    79              // all outgoing calls are barred.

    80        }

    81     }

    82 

    83 void CClientApp::DoCancel()

    84     {

    85     iTelephony->CancelAsync(CTelephony::EGetCallBarringStatusCancel);

    86     }</codeblock> </example>

    87 </taskbody></task>