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echo: os2prog
to: Peter Hansen
from: John Poltorak
date: 1995-04-11 11:49:16
subject: Cursor keys

Friday April 07 1995, Peter Hansen writes to John Poltorak:

 JP>> Are there any standards regarding the use of cursor keys?

 JP>> different programs. If scrolling through a list of items should END
 JP>> take you to the last item and display it at the bottom of a page, or
 JP>> separately at the top of a page?

 PH> In my opinion, having written just about every variation on this at one
 PH> time or another, the best from the user's point of view is _usually_,
 PH> though not always, to display it at the bottom of the page.

Yes, that is my preference too.

 PH> And that doesn't even consider what happens with PGUP and PGDN.  Do they
 PH> jump the cursor bar first from the current position to the top or bottom
 PH> of the page, and then scroll the list a page at a time (less one line,
 PH> of course), or do they leave the cursor position where it is relative to
 PH> the top of the page and scroll the list a page at a time, jumping to the
 PH> top/bottom of the list only when unable to move a whole page?  And for
 PH> that matter, should PGUP and PGDN _ever_ change the position of the
 PH> cursor bar relative to the window?

Actually I have already posed these questions to myself :-). Suggestions
about which method is most common would be welcome...

John

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