alNextEvent man page on IRIX
[printable version]
alNextEvent(3dm) alNextEvent(3dm)
NAME
alNextEvent - Retrieves front most event from queue
SYNOPSIS
#include <dmedia/audio.h>
int alNextEvent(ALeventQueue eventq, ALevent event)
PARAMETER
eventq expects a valid ALeventQueue structure from which you want to
retrieve audio events.
event expects an ALevent structure previously initialized by
alNewEvent(3dm).
DESCRIPTION
alNextEvent(3dm) retrieves the next ALevent in eventq and places it in
event. If eventq is empty, the call will block until an ALevent is
received by eventq.
To process the event, use the following calls: alGetEventParam(3dm),
alGetEventUST(3dm), alGetEventValue(3dm), alGetEventData(3dm),
alGetEventResource(3dm), and alGetEventSrcResource(3dm).
DIAGNOSTICS
Upon successful completion, alNextEvent returns 0. Otherwise, alNextEvent
returns -1 and sets an error number which can be retrieved with
oserror(3C).
alNextEvent can fail for the following reason:
AL_BAD_INVALID_EVENTQ eventq is either invalid or null.
AL_BAD_INVALID_EVENT event is either invalid or null.
SEE ALSO
alOpenEventQueue(3dm), alGetEventParam(2), alGetEventUST(2),
alGetEventValue(3dm), alGetEventData(3dm), alGetEventResource(3dm),
alGetEventSrcResource(3dm), oserror(3C)
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