[Oberon] Re (2): Re (2): PO2013 - System.CloseTrack / System.ExtendDisplay

[peter at easthope.ca]

From:	=?utf-8?Q?J=C3=B6rg_Straube?= <joerg.straube at iaeth.ch>
Date:	Sun, 5 May 2019 08:23:34 +0200
> A touchscreen is an ergonomical nightmare when vertical. I mean when 
> you sit in front of it at a distance of ~40 cm

Yes, for that case, use a mouse as mentioned in my preceding message.   

From:	peter at easthope.ca
Date:	Sat, 04 May 2019 07:44:21 -0700 
> ... pointing can be implemented via mouse or finger.  Approximately 
> equivalent ... 
===================================================

The specific initial challenge was to allow an unprogrammed user to 
manipulate displays and tracks, some of which are hidden.  Two 
concepts should be recognized.  (1) Input and output mechanisms; ie. 
the known technologies of keyboard, mouse, screen and screen touch. 
And (2) the conceptual interface by which the system is manipulated.  
The interface integrates I/O mechanisms with system concepts.

My message at 2018-05-09 described a small variation of the Oberon 
interface where a hidden or implicit command is made visible.  
Therefore avoiding non-evident means such as specially assigned 
combinations of buttons and keys.  MM+MR, <Fn>, <Ctrl>+<N> and etc.  
As luck would have it, the proposal requires pointing; any pointing.  
Keyboard input is not required but harmless.  

When an annoying bug in the Mail module and a few other things are 
fixed will work on a prototype again. 

Regards,                ... Lyall E.
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