On May 7, 2008, at 3:52 PM, Sean McBride wrote:
I suspect that back in the
NeXTStep days it actually did centre it. But when NeXTStep merged
with
Mac OS, the behaviour was changed to match the Mac OS behaviour. In
Classic Mac OS this position is called the 'alert position'. See for
example the docs for the kWindowAlertPositionMainScreen constant, and
contrast with kWindowCenterMainScreen.
After a quick test it *looks* like the ratio of top to bottom margins
is 1:3, after removing the heights of the menu bar and the Dock. This
is different from the ratios documented for either
kWindowAlertPositionMainScreen or kWindowCenterMainScreen.
For some reason I thought Classic Mac OS used a ratio of 1:2, but that
could be my memory playing tricks on me.
--Andy
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