So I'm porting an app from Windows to Mac, and part of the app deals with creating movie files. On Windows, there's a group of functions like ICOpen and ICConfigure, which signify to the video compression driver to open up a configuration box for the selected codec. Is there anything like that for QuickTime on Mac?

+1  A: 

You will need to use straight Quicktime-C calls for this, but the function you want is called MovieExportDoUserDialog.

See the QTMovieExportSettings article on CocoaDev for the full details.

Nick Haddad
Too bad, I'm limited to QTKit and 64-bit. Still, thanks for the answer.
Josh Matthews