int ok = ChangeDir(STRPTR dir, struct hwTagList *tags);
dir
and return True for success, False for failure.
The tags argument will be set to a tag list that can contain the following
tags:
HWCHANGEDIRTAG_USERTAGS:pData will point to a struct hwUserTagList containing
a list of user tags passed by the Hollywood script. User tags are a way of passing additional information
from Hollywood scripts to plugin functions. See User tags for details.
True to indicate success, False on failure