alGetEventUST - get Unadjusted System Time of audio event
long long alGetEventUST(ALevent event)
event expects an ALevent structure initialized by alNextEvent(3dm) or
alGetEventUST returns the Unadjusted System Time (UST) from the ALevent
The UST is a 64-bit number in nanoseconds indicating when the event was
posted. It lies on the same timeline as the time returned by
Upon successful completion, alGetEventUST returns a long long whose value
is the Unadjusted System Time (UST) for the audio event. Otherwise,
alGetEventUST returns -1 and sets an error number. This error number can
be retrieved with oserror(3C).
alGetEventUST can fail for the following reason:
AL_BAD_INVALID_EVENT event is invalid or null.
alNewEvent(3dm), alNextEvent(3dm), alCheckEvent(3dm),
alGetFrameTime(3dm), oserror(3C) alGetFrameTime(3dm)
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