|Microsoft DirectX 9.0|
The get_VCRHorizontalLocking method indicates whether the decoder is expecting video from a tape source or a broadcast source.
HRESULT get_VCRHorizontalLocking( long *plVCRHorizontalLocking );
[out] Pointer to a variable that receives one of the following values.
|0||The decoder is expecting video from a broadcast source.|
|1||The decoder is expecting video from a tape source.|
Returns an HRESULT value. Possible values include the following.
|E_PROP_ID_UNSUPPORTED||The device does not support this method.|
The timing accuracy of synchronization pulses is typically poorer from a tape source than from a broadcast source. If the returned value is 1, the decoder might relax its sync timing standards.