Inside Macintosh: QuickTime Components /

Chapter 4 - Image Compressor Components / Image Compressor Components Reference

Functions / Direct Functions

CDCodecBusy

Your component receives the CDCodecBusy request whenever an application calls the CDSequenceBusy function. Your component must report whether it is performing an asynchronous operation.

pascal ComponentResult CDCodecBusy (ImageSequence seq);

seq

Contains the unique sequence identifier assigned by the Image Compression Manager's CompressSequenceBegin or DecompressSequenceBegin function.

DESCRIPTION

Your component should return a result code value of 1 if an asynchronous operation is in progress; it should return a result code value of 0 if the component is not performing an asynchronous operation. You can indicate an error by returning a negative result code.

Both compressors and decompressors may receive this request.

RESULT CODES

noErr	0	No error
codecUnimpError	-8962	Feature not implemented by this compressor

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