/* $DOC$
   $NAME$
      ft_DFSetup()
   $CATEGORY$
      File I/O
   $ONELINER$
      Set up parameters for ft_DispFile()
   $SYNTAX$
      ft_DFSetup( <cInFile>, <nTop>, <nLeft>, <nBottom>, <nRight>, ;
               <nStart>, <nCNormal>, <nCHighlight>, <cExitKeys>,   ;
               <lBrowse>, <nColSkip>, <nRMargin>, <nBuffSize> ) -> nResult
   $ARGUMENTS$
      <cInFile>     - text file to display (full path and filename)
      <nTop>        - upper row of window
      <nLeft>       - left col of window
      <nBottom>     - lower row of window
      <nRight>      - right col of window
      <nStart>      - line to place highlight at startup
      <nCNormal>    - normal text color     (numeric attribute)
      <nCHighlight> - text highlight color  (numeric attribute)
      <cExitKeys>   - terminating key list  (each byte of string is a
                      key code)
      <lBrowse>     - act-like-a-browse-routine flag
      <nColSkip>    - col increment for left/right arrows
      <nRMargin>    - right margin - anything to right is truncated
      <nBuffSize>   - size of the paging buffer
   $RETURNS$
      0 if successful, FError() code if not
   $DESCRIPTION$
      Note: make sure you allocate a buffer large enough to hold enough
      data for the number of lines that you have in the window.  Use the
      following formula as a guideline:

         buffer size = (# of line) + 1 * RMargin

      This is the smallest you should make the buffer.  For normal use,
      4096 bytes is recommended
   $EXAMPLES$
      #include "inkey.ch"

      @ 4, 9 TO 11, 71

      ft_DFSetup( "test.txt", 5, 10, 10, 70, 1, 7, 15, ;
         { "A", "a", "B", "b", K_F3 }, .T., 5, 132, 4096 )

      cKey := ft_DispFile()

      ft_DFClose()

      @ 20, 0 SAY "Key that terminated ft_DispFile() was: " + "[" + cKey + "]"
   $SEEALSO$
      ft_DispFile(), ft_DFClose()
   $END$
 */

/* $DOC$
   $NAME$
      ft_DFClose()
   $CATEGORY$
      File I/O
   $ONELINER$
      Close file displayed by ft_DispFile()
   $SYNTAX$
      ft_DFClose() -> NIL
   $ARGUMENTS$
      None
   $RETURNS$
      NIL
   $DESCRIPTION$
      Closes the file opened by ft_DFSetup()
   $EXAMPLES$
      #include "inkey.ch"

      @ 4, 9 TO 11, 71

      ft_DFSetup( "test.txt", 5, 10, 10, 70, 1, 7, 15, ;
         { "A", "a", "B", "b", K_F3 }, .T., 5, 132, 4096 )

      cKey := ft_DispFile()

      ft_DFClose()

      @ 20, 0 SAY "Key that terminated ft_DispFile() was: " + "[" + cKey + "]"
   $SEEALSO$
      ft_DFSetup(), ft_DispFile()
   $END$
 */