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bug#19368: 25.0.50; NSM prompt is not self-explanatory enough


From: Eli Zaretskii
Subject: bug#19368: 25.0.50; NSM prompt is not self-explanatory enough
Date: Fri, 05 Feb 2016 11:34:23 +0200

> From: Lars Ingebrigtsen <address@hidden>
> Cc: address@hidden
> Date: Fri, 05 Feb 2016 18:46:13 +1100
> 
> Eli Zaretskii <address@hidden> writes:
> 
> > I don't think you should be bothered by that, because 'underline' is a
> > standard face, and every terminal expresses it as best as they can.
> > Just use it.
> 
> But underline in addition to [t]his?
> 
> I guess I'm asking whether there are terminals that don't do underline
> at all, and I would guess that there are...  so we need to do [t]his on
> all terminals, unless we have a way to query the terminal for whether it
> supports underline?

I think you want this:

  (display-supports-face-attributes-p '(:underline t) FRAME)

This returns non-nil only if underline is supported "in some way" by
FRAME's display.  Where "in some way" means that the appearance will
be different from the default face.





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