alNewEvent man page on IRIX
[printable version]
alNewEvent(3dm) alNewEvent(3dm)
NAME
alNewEvent - create and initialize an audio ALevent structure
SYNOPSIS
#include <dmedia/audio.h>
ALevent alNewEvent(void)
DESCRIPTION
alNewEvent creates and initializes an ALevent structure. An ALevent
structure contains the event information of a particular audio system
change. Events are retrieved from event queues through alNextEvent(3dm)
and alCheckEvent(3dm). All events have an audio parameter associated
with them. For example, an ALevent with an AL_RATE parameter means that
an AL_RATE change occurred on an audio resource. Please refer to
alParams(3dm) for more information.
To access event information, use the following calls:
alEventGetSrcResource(3dm), alEventGetResource(3dm), alGetEventUST(3dm),
alGetEventData(3dm), alGetEventParam(3dm), and alGetEventValue(3dm).
Some non-scalar parameters require a call to alGetParams(3dm) in order to
access the event data information. Refer to alParams(3dm) for more
information on the specific parameters and their methods for retrieving
data from an ALevent.
DIAGNOSTICS
Upon successful completion, alNewEvent returns an opaque ALevent
structure with all its members initialized to zero. If the structure
allocation fails, alNewEvent returns 0 and sets an error number which can
be retrieved with oserror(3C).
alNewEvent can fail for the following reason:
AL_BAD_OUT_OF_MEM insufficient memory is available to allocate the
ALevent structure.
SEE ALSO
alFreeEvent(3dm), alGetEventParam(3dm), alGetEventResource(3dm),
alGetEventSrcResource(3dm), alGetEventUST(3dm), alGetEventValue(3dm),
alGetEventData(3dm), alParams(3dm), oserror(3C)
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