[Oberon] SystemV - Viewer Scroll
thomas.kral at email.cz
Thu Mar 14 20:28:07 CET 2019
Observing text viewer scroll by `MM'.
When scrolling down, a portion of
text is copied up `CopyBlock', vacant part is cleared at the bottom,
a new text is copied into `CopyPattern'.
When scrolling up, the whole viewer is cleared and redrawn by
I wish  behave similar to , possible?
Looking for a hint as to where in the source text this could be
Tomas Kral <thomas.kral at email.cz>
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