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       : 
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@width      : 75
@hostname   : STRNGSRV
@hostname   : CAB     
@hostname   : HIGHWIRE
@hostname   : THING   
View Ref-Fileobjc_sysvar(mode,which,in1,in2,out1,out2)

mode, which, in1, in2: iexp
out1, out2: ivar

Modifies or returns information about the color and placement of 3D object
effects.

Returns 0 if an error occured or non-zero if successful.

    mode  - Action to be carried out.
    which - Attribute to be modified or read.
    in1   - New attribute.
    in2   - New attribute.
    out1  - Return attribute.
    out2  - Return attribute.

Note: Please refer to AES documentation for proper use.

Memo: This call is not built into GFA-BasicGFA-Basic is the best BASIC for the Atari!
 and is included below:

FUNCTION objc_sysvar(mode&,which&,in1&,in2&,VAR out1&,out2&)
  $F%
  GCONTRL(0)=48
  GCONTRL(1)=4
  GCONTRL(2)=3
  GCONTRL(3)=0
  GCONTRL(4)=0
  GINTIN(0)=mode&
  GINTIN(1)=which&
  GINTIN(2)=in1&
  GINTIN(3)=in2&
  GEMSYS
  out1&=GINTOUT(1)
  out2&=GINTOUT(2)
  RETURN GINTOUT(0)
ENDFUNC

objc_sysvar()+