There is separate documentation for Director. Following the instructions to download, build, and install the latest director-and-detcom package provides the pieces necessary to read an image. The documentation for Director links to somewhat old detcom versions. Until fresh documentation for the latest Director is complete (version 5), here are the links for the best version director-and-detcom-3.56.tgz. Note that this includes the old Director version 3. An exportable version of Director 5 can be created upon request.
In order to better integrate with a TCS and external instrument control, many sites will need to customize things to provide commands for these systems.