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Re: New Quartz Composer technotes

Title: Re: New Quartz Composer technotes

3 new Quartz Composer technotes have just been posted:
http://developer.apple.com/technicalnotes/GraphicsImaging/idxQuartz-
date.html

in TN2145:

is this endian safe?

((**description).cType == 'qtz ')



Boolean HasQuartzComposerTracks(Movie movie)
{
    Boolean          result = false;
    long          index = 1;
    Media          media;
    SampleDescriptionHandle  description;

    description = (ImageDescriptionHandle) NewHandle(sizeof(ImageDescription));
    if(description) {
        while(track = GetMovieIndTrackType(movie, index, VideoMediaType,
                movieTrackMediaType | movieTrackEnabledOnly)) {
            if((media = GetTrackMedia(track)) {
                GetMediaSampleDescription(media, 1, (SampleDescriptionHandle) description);
                if(!GetMoviesError() && ((**description).cType == 'qtz ')) {
                    result = true;
                    break;
                }
            }
            ++index;
        }
        DisposeHandle((Handle) description);
    }

    return result;
}

richard
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