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From: S2P development <taco.hoekwater@wkap.nl>
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Subject: Re: \blank[force] and pos-fonts
Date: Tue, 30 Jan 2001 15:18:36 +0100
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Hans Hagen wrote:
> 
> 
> Interesting. At the top of the page prevdepth = .12pt in pos fonts
> [probably delta topskip/strutheight or so].

This is the origin of this dimension:

0.13791pt = 0.11493pt (the depth of overshoots in phv8t.tfm) 
            * 1.2     (from 12pt instead of 10pt) 

To put it another way: TeX never leaves the current vertical
list, so \prevdepth is always the depth of the previous
paragraph! 

The fact that cmss12 has overshoots of 0.0pt is just a
coincidence (try "Gutentag" instead of "Hallo") 

Greetings, Taco