sep_get_val_headers - get header values
ierr=sep_get_val_headers (tag_history,record_number,n_headers,header_values)
tag of History File
Header Record Number computed using sep_get_grid_window
number of headers to be retrieved
Header values for n_headers
-1 = if fails for other reasons
0 = if successful
+1 = if tag_history is a Sep77 History File
+2 = if n_headers is too large
The values of the headers are read from the Header Values File and stored in header_values array.
return=sep_get_header_bytes(char *tag_history, int *n_bytes) i_byte=(record_number-1)*n_bytes sseek into the Header Format File at position i_byte sreed n_headers from Header Format File into value
sep3d