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Re: observations for ns*.m files (Re: Emacs.app merged)

From: Stefan Monnier
Subject: Re: observations for ns*.m files (Re: Emacs.app merged)
Date: Mon, 28 Jul 2008 00:16:24 -0400
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.0.60 (gnu/linux)

> One more thing:

> DEFUN ("ns-set-alpha", Fns_set_alpha, Sns_set_alpha, 2, 2, 0,
>        doc: /* Return a color equivalent to COLOR with alpha setting
>        ALPHA.
> The argument ALPHA should be a number between 0 and 1, where 0 is full
> transparency and 1 is opaque.  */)

> Not sure about the details, but can this functionality be replaced by
> an implementation of x_set_frame_alpha?

No, it can't.  `ns-set-alpha' uses the alpha channels for colors, which
is much more refined than the crude x_set_frame_alpha.


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