DATA_EVCB Field - ulFlags

ulFlags (ULONG)

Flags.

EVENT_SINGLE

Event reported on the first occurrence detected. This event remains enabled until disabled. If a stream seeks to a position before the cue point occurrence is performed, the cue point might be detected and reported again. This value is the default.
EVENT_RECURRING
Event reported for each occurrence of the data in the data stream. This event remains enabled until disabled.
EVENT_DATAPTR
Describes the use of the ulEventParm1 and ulEventParm2 fields.

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