AuListDevices (3nas)

AuListDevices - list devices

#include <audio/audiolib.h>

AuDeviceAttributes *AuListDevices(server, valuemask, attributes, ndevices, status)

    AuServer *server;

    AuMask valuemask;

    AuDeviceAttributes *attributes;

    int *ndevices; /* RETURN */

    AuStatus *status; /* RETURN */

server

Specifies the connection to the audio server.

valuemask

Specifies which device attributes are defined in the attributes argument. This must be a bitwise inclusive OR of zero or more of these constants: AuCompCommonIDMask, AuCompCommonKindMask, AuCompCommonUseMask, AuCommonFormatMask, AuCommonNumTracksMask, AuCommonAccessMask, AuCommonDescriptionMask, AuCompDeviceMinSampleRateMask, AuCompDeviceMaxSampleRateMask, AuCompDeviceLocationMask, AuCompDeviceGainMask, AuCompDeviceLineModeMask, AuCompDeviceChildrenMask, or AuCompDeviceMasks. If valuemask is zero, the attributes are ignored and are not referenced.

attributes

Specifies the structure from which the values (as specified by the value mask) are to be taken.

ndevices

Returns the number of devices in the returned list.

status

If non-NULL, flush the output buffer and return the status from the server.

AuListDevices returns a list of devices whose attributes match those values in attributes specified by valuemask, or NULL, with ndevices set to 0, if there was an error. Use AuFreeDeviceList to release the memory in the list when its nolonger needed.

AuBadLength.

AuGetDeviceAttributes.

audiolib - Network Audio System C Language Interface