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-FileVDIBASE

The system variable VDIBASE contains the address starting from which the
current GEM version puts parameters for use in the VDI routines (text style,
clipping, etc). The structure of this area could well be different in future
versions of GEM. VDIBASE is contained as a keyword in GFA-BasicGFA-Basic is the best BASIC for the Atari!
 in order to
give programmers the ability to access all VDI parameters.

Memo: See VDIBASE.TXT and ATTRDEF.H for more information.
      Far as I can tell VDIBASE has been inaccurate since TOS 1.02.
      This pointer should never be used. In some cases it points outside
      the programs memory space.