CDSequenceBusy
Your application may call the CDSequenceBusy function to check the status of an asynchronous compression or decompression operation.
pascal OSErr CDSequenceBusy (ImageSequence seqID);
seqID
- Contains the unique sequence identifier that was returned by the
DecompressSequenceBegin or CompressSequenceBegin function (described on page 3-107 and page 3-100, respectively).
DESCRIPTION
If there is no asynchronous operation in progress, the CDSequenceBusy function returns a 0 result code. If there is an asynchronous operation in progress, the result code is 1. Negative result codes indicate an error.
SPECIAL CONSIDERATIONS
If you call the CDSequenceEnd function (described in the next section), you don't need to call CDSequenceBusy to make sure you have completed an operation.
RESULT CODES
| paramErr | -50 | Invalid parameter specified |
| codecUnimpErr | -8962 | Feature not implemented by this compressor |
Component Manager errors
