Microsoft DirectX 9.0


This topic applies to Windows XP only.

The ChannelAvailable method queries whether a specified channel is available for viewing.

This method is currently not supported.


HRESULT ChannelAvailable(
  long  nChannel,
  long*  pSignalStrength,
  VARIANT_BOOL*  pfSignalPresent



[in]  Integer containing the channel.


[in, out]  Specifies the signal strength.


[out] Flag indicating whether a signal is present.

Return Values

If the method succeeds, it returns S_OK. If it fails, it returns an error code.

See Also