|Microsoft DirectX 9.0|
The GetServices method retrieves a collection of tune requests representing all the services available in the tuning space.
HRESULT GetServices( IEnumTuneRequests** ppEnumTuneRequests );
[out] Pointer to a variable that receives an IEnumTuneRequests interface pointer. Use this interface to enumerate the properties. The caller must release the interface.
The method returns an HRESULT. Possible values include those in the following table.
|S_OK||The method succeeded.|
This method is used to enumerate all services listed in the service descriptor table. Each tune request in the returned collection contains locator data for the service. To get more information about a service, pass the ITuneRequest pointer to the IGuideData::GetServiceProperties method.
The method fails if the TIF has not received the service information from the PSI tables in the transport stream. The client should implement the IGuideDataEvent interface and wait for the IGuideDataEvent::ServiceChanged event to be fired.