sep_get_key_fmt - get the format of a key
int sep_get_key_fmt(tag_history,key_index,key_fmt)
tag of History File
Key Index of Header Key
Key Name of Header Key
-1= if fails for other reasons
0= if successful
+1= if tag_history is an Sep77 History File
+2= if tag_history is a Sep3d History File but no matching Key Index is in Header Format File
auxpar from the Header Format File for the parameter hdrfmt"#" for a given key_index
the sep_get_key_index manpage, the sep_put_key manpage, the sep_get_key_name manpage
sep3d