Sets information in a sound input device.

OSErr SPBSetDeviceInfo (
    SInt32 inRefNum, 
    OSType infoType, 
    void *infoData
);

Parameter descriptions

inRefNum

The device reference number of the sound input device, as obtained from the SPBOpenDevice function.

infoType

A sound input device information selector that specifies the type of information you need. The sound input device information selectors are listed in “Sound Input Device and Sound Component Information Selectors”.

infoData

A pointer to a buffer. This buffer can contain information on entry, and information might be returned on exit. This buffer must be large enough for the type of information specified in the infoType parameter, and the data in the buffer must be set to appropriate values if information needs to be passed in to the SPBSetDeviceInfo function.

function result

A result code.

DISCUSSION

The SPBSetDeviceInfo function sets information about the sound input device specified by the inRefNum parameter, based on the data in the buffer specified by the infoData parameter.

SPECIAL CONSIDERATIONS

Because the SPBSetDeviceInfo function might move memory, you should not call it at interrupt time. Check the selector description of the selector you want to use to see if it moves memory before calling the SPBGetDeviceInfo function. Most of the selectors do not move memory and are therefore safe to use at interrupt time.

AVAILABILITY

Supported in Carbon. Available in Carbon 1.0.2 and later when running Mac OS 8.1 or later.

© 2000 Apple Computer, Inc. (Last Updated 6/30/2000)