Does this need a desktop environment to run?

view full story

http://askubuntu.com – I have a HTPC running an Ubuntu minimal OS installation and XBMC. No desktop environment is installed - the computer boots straight to XBMC. I want to install a couple of old emulators and run it from the command line using XBMC. On the requirements page of several emulators, it says they need GTK. Does this mean they won't work without installing a desktop environment? (HowTos)