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 xml:lang="en" id="GUID-C48890DD-BBFD-53FA-95D6-7F39D9C3C263"><title>Current Network Information Tutorial </title><shortdesc>This tutorial describes how to get the current network information with the telephony API for applications. </shortdesc><prolog><metadata><keywords/></metadata></prolog><taskbody> <steps id="GUID-200DAECA-5ABF-570A-8D51-66BEB8FD28C5"> <step id="GUID-EA612306-767E-52CF-9106-F37D09D9EC18"><cmd/><info>create a new instance of <xref href="GUID-97D402C8-B4B7-385A-92B3-D3FCC0CA575A.dita"><apiname>CTelephony</apiname></xref>  </info> </step> <step id="GUID-E28FA43C-9DCD-503C-B338-A055F957DB45"><cmd/><info>use <xref href="GUID-97D402C8-B4B7-385A-92B3-D3FCC0CA575A.dita"><apiname>CTelephony::GetCurrentNetworkInfo()</apiname></xref> to get the current network information </info> </step> <step id="GUID-DB2736DE-3665-5C59-B7BB-5BE160834FA3"><cmd/><info>use <xref href="GUID-97D402C8-B4B7-385A-92B3-D3FCC0CA575A.dita"><apiname>CTelephony::EGetCurrentNetworkInfoCancel</apiname></xref> to cancel the asynchronous request </info> </step> <step id="GUID-238778A6-986B-5F82-8B6C-7B5467CFD195"><cmd/><info>use <xref href="GUID-97D402C8-B4B7-385A-92B3-D3FCC0CA575A.dita"><apiname>CTelephony::ECurrentNetworkInfoChange</apiname></xref> to get the notification of any changes to the current network information </info> </step> <step id="GUID-2197F674-C205-5D74-A175-941CD4CDA24D"><cmd/><info>pass the enumeration <xref href="GUID-97D402C8-B4B7-385A-92B3-D3FCC0CA575A.dita"><apiname>CTelephony::ECurrentNetworkInfoChangeCancel</apiname></xref> to cancel the notification request. </info> </step> </steps> <example id="GUID-294DCE91-58A5-5AFE-90FC-7F8C6E4BE1EF"><title>Current network information example</title> <codeblock id="GUID-26F49E05-4B6E-5C58-B26D-59D4ADC40AD2" xml:space="preserve">#include &lt;e32base.h&gt;

    13 #include <Etel3rdParty.h>

    14 

    15 class CClientApp : public CActive

    16     { 

    17 

    18 private:

    19     CTelephony* iTelephony;

    20     CTelephony::TNetworkInfoV1 iNetworkInfoV1;

    21     CTelephony::TNetworkInfoV1Pckg iNetworkInfoV1Pckg;

    22 

    23 public:

    24     CClientApp(CTelephony* aTelephony);

    25     void SomeFunction();

    26 

    27 private:

    28     /*

    29        These are the pure virtual methods from CActive that  

    30        MUST be implemented by all active objects

    31        */

    32     void RunL();

    33     void DoCancel();

    34     };

    35 

    36 CClientApp::CClientApp(CTelephony* aTelephony)

    37     : CActive(EPriorityStandard),

    38       iTelephony(aTelephony),

    39       iNetworkInfoV1Pckg(iNetworkInfoV1)

    40     {

    41     //default constructor

    42     }

    43 

    44 void CClientApp::SomeFunction()

    45     {

    46     iTelephony->GetCurrentNetworkInfo(iStatus, iNetworkInfoV1Pckg);

    47     SetActive();

    48     }

    49 

    50 void CClientApp::RunL()

    51     {

    52     if(iStatus==KErrNone)

    53        {

    54        CTelephony::TNetworkMode mode = iNetworkInfoV1.iMode;

    55        if((mode == CTelephony::ENetworkModeCdma2000) || (mode == CTelephony::ENetworkModeCdma95))

    56           {} // CDMA network; process CDMA-specific information

    57        }

    58     }

    59 

    60 void CClientApp::DoCancel()

    61     {

    62     iTelephony->CancelAsync(CTelephony::EGetCurrentNetworkInfoCancel);

    63     }</codeblock> </example> </taskbody></task>