Path: utzoo!attcan!uunet!samsung!usc!apple!uokmax!servalan!rmtodd
From: rmtodd@servalan.uucp (Richard Todd)
Newsgroups: comp.windows.x
Subject: Re: Motif xwd (really about ppmtogif now...)
Message-ID: <1990Apr13.063323.10410@servalan.uucp>
Date: 13 Apr 90 06:33:23 GMT
References: <26221e16:57comp.windows.x@tronsbox.UUCP> <470@venice.SEDD.TRW.COM>
Organization: Ministry of Silly Walks
Lines: 25

ries@venice.SEDD.TRW.COM (Marc Ries) writes:

> Along the same lines, I wanted to get some HP Motif screen dumps
> into a PC-based document, via:

>   xwd -root | xwdtoppm | ppmtogif > xwd.gif

> On my PC, neither Hijaak or Grafwk would do anything with them (Hijaak giving
> an file error message and Grafwk reading the file but not displaying
> any picture).  I checked the headers of the gif files and they "looked"
> GIF87-ish and where about the right size (40-60K).

  Hmm, that's interesting.  By "not displaying any picture" do you mean you 
see nothing but a big black void where you'd expect the image to be?  I've
been having the same problem with ppmtogif-created pictures on my Mac.  Both
xloadimage (patchlevel 3, yeah I know I probably oughta upgrade), and 
Vision Lab Demo show a completely black image when displaying an image I 
created with ppmtogif.  It's looking like there may be a bug in ppmtogif 
somewhere, or at least a subtle incompatibility with many GIF-handling
programs.  Alas, I don't understand GIF format well enough to try and 
debug this....
--
Richard Todd	rmtodd@uokmax.ecn.uoknor.edu  rmtodd@chinet.chi.il.us
	rmtodd@servalan.uucp
Motorola Skates On Intel's Head!