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IScanningTuner interface (tuner.h)

[The feature associated with this page, Microsoft TV Technologies, is a legacy feature. Microsoft strongly recommends that new code does not use this feature.]

The IScanningTuner interface is implemented on the BDA Network Provider filter. It inherits from ITuner and permits direct control of a tuner that supports searching for valid programming. The client must provide a valid tuning space (using ITuner::put_TuningSpace or ITuner::put_TuneRequest) before calling any of the methods in this interface. This interface is meant to be used in conjunction with the IBroadcastEvent outbound interface.

Note��Only applications intended to run on Microsoft� Windows� 98 or Windows 2000 should use this interface. On Windows XP, the Video Control handles all tuning interactions with the Network Provider.

Inheritance

The IScanningTuner interface inherits from ITuner. IScanningTuner also has these types of members:

Methods

The IScanningTuner interface has these methods.

 
IScanningTuner::AutoProgram

The AutoProgram method scans for all channels with valid programming.
IScanningTuner::ScanDown

The ScanDown method changes the channel to the next lower channel with valid programming, pauses for the specified number of milliseconds, then repeats until canceled.
IScanningTuner::ScanUp

The ScanUp method changes the channel to the next higher channel with valid programming, pauses for the specified number of milliseconds, then repeats until canceled.
IScanningTuner::SeekDown

The SeekDown method changes the channel to the next lower channel with valid programming.
IScanningTuner::SeekUp

The SeekUp method changes the channel to the next higher channel with valid programming.

Remarks

Currently the DVB-C and DVB-S Network Provider filters do not implement this interface. The interface is implemented for DVB-T.

OCUR Devices: This interface supports OpenCable Unidirectional Cable Receiver (OCUR) devices. See OCUR Devices.

To declare the interface identifier (IID) for this interface, use the __uuidof operator: __uuidof(IScanningTuner).

Requirements

Requirement Value
Target Platform Windows
Header tuner.h

See also

BDA Interfaces

ITuner