Topic       : The GFA-Basic Compendium
Author      : GFA Systemtechnik GmbH
Version     : GFABasic.HYP v2.98 (12/31/2023)
Subject     : Documentation/Programming
Nodes       : 899
Index Size  : 28056
HCP-Version : 3
Compiled on : Atari
@charset    : atarist
@lang       : 
@default    : Document not found
@help       : Help
@options    : +g -i -s +z
@width      : 75
@hostname   : STRNGSRV
@hostname   : CAB     
@hostname   : HIGHWIRE
@hostname   : THING   
View Ref-FileCLS [#n]

n: iexp

Erases the screen by using ESC-E-CR (CHR$(27)+"E"+CHR$(13)) of the VT-52
Emulator. It can also be rerouted to a data file.

Example:

    PBOX 100,100,500,200
    REPEAT
    UNTIL MOUSEK
    CLS

--> Fills the screen partly with a rectangle and deletes it after a mouse
    button is pressed.

Memo: CLS #n appears to be almost useless. What's the point of writing
      ESC-E-CR (3 bytes) to a file? Might be ok for other devices.
      The extra CR is also not needed.

      This is actually a bios() call to bconout(DEV_CON) using a VT-52 ESCape.