Categories: S60 | WLAN | Symbian C++ | Code Examples | How To

This page was last modified 06:47, 27 March 2008.

From Forum Nokia Wiki

We can retrieve IAP used by VPN IAP by retrieving VPN_SERVICE_IAP value in VPN_SERVICE table.

We can use the following two approaches to retrieve SSID-

1.First one is to use CApDataHandler and CApAccessPointItem -ReadTextL with EApWlanNetworkName as parameter to get SSID.

2.Second approach is to read WLAN_SSID from WLAN_SERVICE Table.

The following code snippet is tested in E61i.

Example Code

Header files: apdatahandler.h apaccesspointitem.h apselect.h COMMDB.H aputils.h

Libraries: Commdb.lib apengine.lib

//Code to retrieve IAP used by VPN IAP
 
 CCommsDbTableView* view = commsdb->OpenTableLC(TPtrC(VPN_SERVICE));//VPN_SERVICE
 TInt retval = view->GotoFirstRecord();
 CApUtils *aputil = CApUtils::NewLC(*commsdb);
 
 TUint32 vpnId,cmId,nwId;
 TBuf<50> vpnIdB,cmIdB,nwIdB,name;
 
 while (retval == KErrNone)
 {	
 //Read IAP used by VPN IAP
 view->ReadUintL(TPtrC(VPN_SERVICE_IAP),vpnId);
 view->ReadTextL(TPtrC(COMMDB_NAME),commName);
 vpnIdB.AppendNum(vpnId);
 CEikonEnv::InfoWinL(_L("COMMDB_NAME"),commName);
 CEikonEnv::InfoWinL(_L("VpnIapID"),vpnIdB);
 //Gives the name of a given access point from IAP ID    
 aputil->NameL(vpnId,name);
 CEikonEnv::InfoWinL(_L("AP in VAP"),name); 
 name.Zero();
 commName.Zero();
 vpnIdB.Zero();
 retval = view->GotoNextRecord();
 }
	
 //First approach to retrieve SSID used in WLAN IAP
 
 
TUint32 APuid;
TBuf<50> ssidBuf,name;
TInt count = 0;
CCommsDatabase *commsdb= CCommsDatabase::NewL();
 
//Filter only WLAN APS with bearer type EApBearerTypeWLAN
CApSelect * select=CApSelect::NewLC  (*commsdb,KEApIspTypeAll,EApBearerTypeWLAN,KEApSortUidAscending);
CApDataHandler* datHand = CApDataHandler::NewLC(*commsdb);
CApAccessPointItem* ap = CApAccessPointItem::NewLC();	
        	
TBool move = select->MoveToFirst();
        	
while(count<select->Count())
 { 
 if(move==TRUE)
 name =select->Name();
 
 //Get AP Id
 APuid =select->Uid();
 name.AppendNum(APuid);
 
 CEikonEnv::InfoWinL(_L("AP Name & ID"),name);//Displays AccessPoint Name and its ID
 datHand->AccessPointDataL(APuid, *ap); // Pass APuid as param
 
 //Read SSID 
 ap->ReadTextL(EApWlanNetworkName, ssidBuf);
 CEikonEnv::InfoWinL(_L("SSID"),ssidBuf);
 ssidBuf.Zero();
 name.Zero();
 TBool move = select->MoveNext();
 count=count+1;
 }
 CleanupStack::PopAndDestroy(3);
 
  //Second approach to retrieve SSID 
 
TBuf<100> ssid;
 
// Open WLAN SERVICE table
CCommsDbTableView* view = commsdb->OpenTableLC(TPtrC(WLAN_SERVICE));
TInt retval = view->GotoFirstRecord();
	
while (retval == KErrNone)
{
//Read SSID value
view->ReadTextL(TPtrC(WLAN_SSID),ssid);
CEikonEnv::InfoWinL(_L("SSID"),ssid);
ssid.Zero();
retval = view->GotoNextRecord();
}
CleanupStack::PopAndDestroy(view);