oreilly.comSafari Books Online.Conferences.   AddThis Social
Bookmark Button  Modding Apple Sample Code  byErica Sadun
Apple develops sample code to demonstrate and showcase its
developer technology. Often the sample code provides end users
with applications that offer unexpected utility. Sometimes you
can leverage this technology directly. Sometimes you need to
modify the source code to create the results you want.  This
article focuses on MovieVideoChart, a typical Apple sample app
that's meant to demonstrate how to access video frames in
QuickTime 7. But that's just where things begin to get
interesting. The scrolling layout and built-in video frame
displays make for a perfect starting point, allowing you to re-
aim the application toward a different end point.  In this
article you'll discover how to modify the MovieVideoChart sample
code to create a comic-book-like video layout tool. This tool
will be able to scroll through video frame by frame, letting the
end user compare successive frames in the same