find-file for directory selection/generating recursive list of directories

[Matthias Schweinoch]

Hi all,

I am trying to find out if the find-file function can be used to select 
a directory. Just calling find-file seems to require regular file 
selection only. I have not been able to find anything in the emacs lisp 
reference manual regarding this. Also, google has not been very helpful:-)

Furthermore, I would like to know if there is an elisp function that 
generates a list of all subdirectories, given a starting directory. I 
could roll my own, but then again, maybe something exists already.

  Matthias