[This is preliminary documentation and subject to change.]
The PrerollTime property specifies the time, in seconds, that a tape or other recording device should run before the multimedia stream starts.
object.PrerollTime [ = dTime ]
This property of the BPCVid object is passed to the current input device. You should set it using the BPCVid object instead of the BPCDeviceBase object. Otherwise, the Video control is not updated, and future behavior is undefined.
Windows NT: Unsupported.
Windows: Requires Windows 98.
Windows CE: Unsupported.
Header: Declared in vidsvr.odl.
Import Library: Included as a resource in vid.ocx.
Unicode: Yes.