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From: "Dave Korn" <dk AT artimi DOT com>
To: "'cygwin'" <cygwin AT cygwin DOT com>
Subject: RE: unknown device
Date: Thu, 15 Apr 2004 18:48:30 +0100
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In-Reply-To: <20040415170944.65492.qmail@web60205.mail.yahoo.com>
Message-ID: <NUTMEGQkUQgNQT9lEbF00000493@NUTMEG.CAM.ARTIMI.COM>
X-OriginalArrivalTime: 15 Apr 2004 17:48:30.0234 (UTC) FILETIME=[DCFF1FA0:01C42311]

> -----Original Message-----
> From: cygwin-owner On Behalf Of Elvin Peterson
> Sent: 15 April 2004 18:10

> When I run gs with the option
> 
> gs -sDEVICE=pngalpha
> 
> I get the error:
> 
> Unknown device: pngalpha
> 
> However, I am able to run gs with the following
> option.
> 
> gs -sDEVICE=png16m
> 
> $ gs -version
> GNU Ghostscript 7.05 (2002-04-22)
> 
> Any help is appreciated.

  Google helps those who help themselves:

http://www.google.com/search?hl=en&ie=UTF-8&oe=UTF-8&q=pngalpha

  The very first entry in the list of search results is:

"[gs-cvs] gs/src
... bcwin32.mak devs.mak gdevpng.c gdevprn.h macosx.mak msvc32.mak
openvms.mak os2.mak
unix-gcc.mak unixansi.mak watcw32.mak Log Message: Add pngalpha device that
... 
www.ghostscript.com/pipermail/ gs-cvs/2003-March/003022.html - 27k - Cached
- Similar pages "

  I clicked on it.  Here's two salient details from that page:

#1) "Log Message:
Add pngalpha device that uses RGBA, with the alpha channel 
providing pixel coverage.  Used for generating PNG images with a 
transparent background.  "

#2) "Tue Mar 11 03:36:44 PST 2003 "

  Here's one salient detail from your earlier post:

#3) "> $ gs -version
> GNU Ghostscript 7.05 (2002-04-22)"

  Any further questions?

[  There's really no earthly reason you shouldn't have been able to work
this out for yourself.  I don't even use gs and haven't looked at it in four
or five years, but it only took me ten seconds to figure out what was wrong.
]


    cheers, 
      DaveK
-- 
Can't think of a witty .sigline today....


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