Photoshop :: How To Edit Preferences / Performance / Use Graphics Processor - Jsx Script

need to check and access the Edit>preferences>performance>use Graphics Processor option setting through the script. i cant find it in the object domain, I have the following to check the current state:

var ref = new ActionReference();
ref.putEnumerated( charIDToTypeID('capp'), charIDToTypeID('Ordn'), charIDToTypeID('Trgt') );
var openglEnabled = executeActionGet(ref).getObjectValue (charIDToTypeID('CchP')).getBoolean (stringIDToTypeID('openglEnabled'));
alert( openglEnabled );
 
but then i am unable to set the value using this:
 
var openglEnabled = executeActionGet(ref).getObjectValue (charIDToTypeID('CchP')).putBoolean (stringIDToTypeID('openglEnabled'));

I tried using a recorded action but that doesnt work.ns