Example query for some accessory's information. All connected accessories are fetched and the instance of CAccessoryInfo is getted:

        CAccMonitor* accMonitor = CAccMonitor::NewLC();
 RConnectedAccessories connectedAccessories;
 CleanupClosePushL( connectedAccessories );
 accMonitor->GetConnectedAccessoriesL( connectedAccessories );
 CAccMonitorInfo* accInfo = CAccMonitorInfo::NewLC();
 TInt countOfArray = connectedAccessories.Count();
 for( TInt i = 0; i != countOfArray; i++ )
   {
   TAccMonCapability deviceType = connectedAccessories[ i ]->AccDeviceType();
   if( deviceType == KAccMonHeadset )
     {
     // Some Headset is connected, get the information to accInfo
     accInfo->CopyL( connectedAccessories[ i ] );
     }
   }
 // Destroy the pointers from the array, because those are owned by the client
 CleanupStack::PopAndDestroy( accInfo );
 CleanupStack::PopAndDestroy( &connectedAccessories );
 CleanupStack::PopAndDestroy( accMonitor );
       

Example query for some accessorys capabilties. The user has fetched the CAccMonitorInfo to accInfo instance from connected accessories:

        TInt arrayCount = accInfo->Count();
 for( TInt i = 0; i != arrayCount; i++ )
   {
   TAccMonCapability accCapa = accInfo->AccCapabilityAtIndex( i );
   if( accCapa == KAccMonStereoAudio )
     {
     // Accessory has stereo capability, handle this situation.
     }
   }
       

Initialization example for the observer(from a class that implements MAccMonitorObserver interface). Observer starts to listen for headset connects:

        CAccMonitor* accMonitor = CAccMonitor::NewLC();
 RAccMonCapabilityArray capabilityArray;
 CleanupClosePushL( capabilityArray );
 capabilityArray.Append( KAccMonHeadset );
 accMonitor->StartObservingL( this, capabilityArray );
 CleanupStack::PopAndDestroy( &capabilityArray );
 CleanupStack::PopAndDestroy( accMonitor );
       

Uninitialization example:

        accMonitor->StopObserving();
       

Connected method implementation example:

        void CMyAccMonitorTest::Connected( CAccMonitorInfo* aAccessoryInfo )
    {
    // Notification about the connected accessory. aAccessoryInfo must
    // be copied because the pointer is deleted after connected method
    iAccessoryInfo->CopyL( aAccessoryInfo );
    }
       

AccMonitor.lib

Since

S60 5.0