CLS

 Function
  Clear the screen, using the current color if in ANSI mode.

 Syntax
  CLS   No arguments are required

 Remarks
  This statement will work one of two ways depending on the mode the
  caller is in.  If the caller is in graphics mode (or non-graphics ANSI-
  positioning) then PCBoard will issue the ANSI sequence to clear to the
  screen using the current color.  If the user is in non-graphics non-ANSI
  mode, PCBoard will write send an ASCII 12 (form feed) character to the
  remote terminal in a last ditch effort to clear the remote callers
  screen.  Many terminal programs do support this, but not all, so be aware
  that callers may see the ASCII 12 instead of a clear screen.

 Examples
  COLOR @X47
  CLS
  PRINT "This is some sample text.  (This will disappear.)"
  WHILE (INKEY() = "") DELAY 1
  BACKUP 22
  COLOR @X1F
  CLREOL
  PRINT "This goes to the end of the line."