SPCB Field - ulHandFlags

ulHandFlags (ULONG)

Stream handler flags (that is, handlers can generate/receive sync pulses, use the Sync/Stream Manager timer as master, and use the non-streaming handler as a NULL handler).

SPCBHAND_GENSYNC

This stream handler can generate sync pulses.
SPCBHAND_GENTIME
This stream handler can keep track of the real stream time. This handler also supports the SpiGetTime function and cue point events.
SPCBHAND_NOPREROLL
This stream handler cannot preroll its device (that is, for recording streams, the source stream handler cannot be prerolled). If asked to preroll this stream, the Sync/Stream Manager treats this stream as if it were prerolled.
SPCBHAND_NONSTREAM
This stream handler is a non-streaming handler (that is, it is a stream handler that can participate in synchronization but does not stream).
SPCBHAND_NOSYNC
This stream handler can be in a sync group but does not receive or generate sync pulses. (It is useful to group streams so that they can be manipulated as a group).
SPCBHAND_PHYS_SEEK
This stream handler does a seek to a physical device. Other stream handlers adjust stream time only on a seek request. The Sync/Stream Manager always calls this stream handler first in an SpiSeekStream call.
SPCBHAND_RCVSYNC
This stream handler can receive sync pulses.
SPCBHAND_TIMER
This stream handler or the device (driver) it communicates with cannot support generation of sync pulses on a granularity necessary for synchronization. Therefore, use the stream manager sync timer as the master timer in a sync group.

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