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ITuner Interface

 
Microsoft DirectShow 9.0

ITuner Interface

The ITuner interface is implemented on the Microsoft BDA Network Provider filters. It provides methods for passing tune requests down to the hardware device and receiving current tuning settings. Generally, applications should use the derived interface IScanningTuner instead of ITuner.

  • **Note   **Only applications that are intended to run on Microsoft® Windows® 9.x or Windows 2000 will use this interface. On Windows XP, the Video Control handles all tuning interactions with the Network Provider.

In addition to the methods inherited from IUnknown, the ITuner interface exposes the following methods.

Method Description
EnumTuningSpaces Creates a collection of the tuning spaces preferred by this implementation.
get_PreferredComponentTypes Gets the collection of ComponentType objects used for default component selection.
get_SignalStrength Retrieves the Network Provider-specific signal strength metric.
get_TuneRequest Gets the tune request currently in effect for the Network Provider.
get_TuningSpace Gets the tuning space currently in effect for the Network Provider.
put_PreferredComponentTypes Sets the collection of ComponentType objects used for default component selection.
put_TuneRequest Sets the tune request for the Network Provider.
put_TuningSpace Sets the tuning space for the Network Provider.
TriggerSignalEvents Enables the tuner to raise an event when the status of the signal changes.
Validate Returns a value indicating that the tune request can be carried out.

Requirements

Header: Include bdaiface.h.

See Also