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Sets the time prior to the start position that devices should start rolling.
HRESULT put_PrerollTime( REFTIME llTime );
Parameters
- llTime
- Preroll time to be set.
Return Values
Returns the HRESULTvalue returned from calling IMediaPosition::put_PrerollTime.
Remarks
Preroll time is the time prior to the start position at which nonrandom access devices, such as tape players, should start rolling.
Note that while this member function passes the call upstream, the IMediaPosition::put_PrerollTimemethod is not implemented on any Microsoft source filter.