SndStopFilePlay
SndChannelPtr chan; a pointer to a valid sound channel
Boolean async TRUE=stop play as soon as possible control play from disk on a sound channel.
chan should be a pointer to a valid sound channel.
async If the async parameter is TRUE, then the play from disk stops as
soon as possible, and program control returns to your application.
All asynchronous file I/O calls will have completed, and any
internally allocated memory will have been released. If async is
returns only after the sound has completed, all asynchronous file I/O
calls have completed, and any internal allocated memory has been
released.
noErr (0) No error
queueFull (-203) No room in the queue
badChannel (-205) Channel is corrupt or unusable