AEPrint view in a viewer shows the value as it would be communicated through an Apple event. For example, here’s the Finder’s desktop in AEPrint view:

'obj '{ 
    'form':'prop', 
    'want':'prop', 
    'seld':'desk', 
    'from':'psn '($00000000000C0001$) 
}

In the Apple Event Log window, extra 'ascr' events are also generated corresponding to the points at which the tell target changes.

'ascr'\'tell'{ 
    '----':'psn '($00000000000C0001$) 
}
'core'\'getd'{ 
        '----':'obj '{ 
            'form':'indx', 
            'want':'cwin', 
            'seld':1, 
            'from':''null''() 
        }, 
        &'csig':65536 
    }
'ascr'\'tend'{  }

If you’re not someone who knows or cares about AEPrint format and raw Apple events, then don’t worry about AEPrint view.