Creating, deleting, editing, and listing WLAN access points using Symbian C++

Article Metadata

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Compatibility

Platform(s): S60 3rd Edition

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Article

Created: User:Technical writer 2 (21 Sep 2006)

Last edited: ashraf fawzy (09 Sep 2012)

Overview

Creating, deleting, editing, and listing WLAN access points

Description

Sometimes S60 3rd-party applications may want to provide the functionality for managing access points through their UI. It is possible for applications to programmatically create, edit, and delete access points. To create, delete, edit, and list WLAN APs, the following headers / libraries are used:

MMP File

This snippet requires the following libraries:

LIBRARY commdb.lib
LIBRARY apengine.lib

Headers

#include <commdb.h>  // link against 
#include <apselect.h> // link against apengine.lib
#include <aplistitem.h>
#include <apdatahandler.h>
#include <apaccesspointitem.h>
#include <aputils.h>

A short example for each type of operation:

Creating an access point:

CApAccessPointItem *wlan = CApAccessPointItem::NewLC();
wlan->SetNamesL(_L("NewAP"));
wlan->SetBearerTypeL(EApBearerTypeWLAN);
wlan->WriteTextL(EApWlanNetworkName, _L("WlanAP"));
 
// Store it into the CommsDb
 
CCommsDatabase *commDb = CCommsDatabase::NewL();
CleanupStack::PushL(commDb);
 
CApDataHandler *handler = CApDataHandler::NewLC(*commDb);
TUint32 newApId = handler->CreateFromDataL(*wlan);
CleanupStack::PopAndDestroy(3); // handler, commDb, wlan

Removing an access point:

handler->RemoveAPL(myUid); // myUid: ID of an AP to remove

Editing an access point:

handler->AccessPointDataL(myUid, *wlan); // myUid: ID of an AP to edit
TInt err;
err = wlan->WriteTextL(EApWlanNetworkName, _L("NewName"));
// EApWlanNetworkName is the column to edit.
// Other columns are listed in ApAccessPointItem.h
TBool nameChanged;
handler->UpdateAccessPointDataL(*iaccessPoint, nameChanged);

Getting the UID of the access points:

// The UIDs of access points can be retrieved as follows: 
 
CCommsDatabase* commDb = CCommsDatabase::NewL(EDatabaseTypeIAP); 
CleanupStack::PushL(commDb); 
CApSelect* select = CApSelect::NewLC(*commDb, KEApIspTypeAll, EApBearerTypeWLAN, /* use EApBearerTypeAll for all types */KEApSortUidAscending); 
TBuf<256> accessPoints; _LIT(KAPInfoTxtFormat, "[%d]%S ");
 
TBool ok = select->MoveToFirst();
for(TInt i = 0; ok && (i < select->Count()); i++)
    {
		accessPoints.AppendFormat(
        KAPInfoTxtFormat,
        select->Uid(),
        &select->Name());
		ok = select->MoveNext();       
    }
CleanupStack::PopAndDestroy(2); // select, commDb
// accessPoints descriptor now contains WLAN AP IDs + names