I have a Carbon Dynamic Library (built using XCode) that is a plug-in to another application. Basically it uses QuickTime to grab frames of a movie and then analyzes each frame and produces a report at the end.
It works really well, except that it hogs the processor and the host application is locked out until the end of the movie.
What I would like to be able to do is to Start up a new thread and have this process the movie, the host application would then "poll" a flag to see if it had finished.
How can I go about doing this? What documents should I look at? Any advice greatly appreciated.
