int pascal VidFillFrame(int row1, int col1, int row2, int col2, WORD boxattr,
                        WORDframeattr)

  This function draws a double-line frame and fills the area within
the frame with blanks.

Parameters
  row1, col1, row2, and col2 are the 0-based coordinates of the area.
  boxattr and frameattr are the color attributes of the frame and the
   filled area respectively.

Returns
  Nothing.