GetMediaDataRefCount
The GetMediaDataRefCount function allows your application to determine the number of data references in a media.
pascal OSErr GetMediaDataRefCount (Media theMedia, short *count);
theMedia
- Specifies the media for this operation. Your application obtains this media identifier from such Movie Toolbox functions as
NewTrackMedia and GetTrackMedia (described on page 2-138 and page 2-190, respectively).
count
- Contains a pointer to a field that is to receive the number of data references in the media.
DESCRIPTION
The count of references in a media corresponds to the maximum index value of any reference in the media. You can use this value to control a loop in which you retrieve all of a media's data references, using the GetMediaDataRef function, which is described in the next section.
ERROR CODES
| invalidMedia | -2008 | This media is corrupted or invalid |
