Inside Macintosh: QuickTime Components /

Chapter 5 - Sequence Grabber Components / Sequence Grabber Components Reference

Sequence Grabber Component Functions / Working With Sound Channels

SGSoundInputDriverChanged

The SGSoundInputDriverChanged function allows you to notify the sequence grabber component whenever you change the configuration of a sound channel's sound input device.

pascal ComponentResult SGSoundInputDriverChanged (SGChannel c);

c

Specifies the reference that identifies the channel for this operation. You obtain this reference from the SGNewChannel function, described on page 5-29.

DESCRIPTION

The sequence grabber's sound channels maintain information about the configuration of any sound input devices that are currently in use. It is very important to notify the sequence grabber component of any configuration changes you make.

SPECIAL CONSIDERATIONS

You should not change the configuration of the sound input device during a record operation.

SEE ALSO

You can obtain access to a sound channel's sound input device by calling the SGGetSoundInputDriver function, which is described in the previous section.