|Microsoft DirectX 9.0|
The put_PrerollTime method sets the amount of data that will be queued before the start position.
HRESULT put_PrerollTime( REFTIME llTime );
[in] Preroll time, in seconds.
Returns an HRESULT value. Possible values include the following.
The preroll is the time prior to the start position at which nonrandom access devices, such as tape players, should start rolling.