Re: My emacs on Windows doesn´t show Images (png, jpeg...) even with .dll-files

[Philipp Hahne <philipp.hahne@kit.edu>]

Am 25.08.2011 13:26, schrieb Eli Zaretskii:
>> Date: Thu, 25 Aug 2011 10:32:45 +0200
>> From: Philipp Hahne<philipp.hahne@kit.edu>
>>
>>> First, which version of Emacs is this, and where did you get it?
>> version: Emacs 23.3.1 (i386-mingw-nt6.1.7601) of 2011-03-10 on 3249CTO
>> get from: http://ftp.gnu.org/pub/gnu/emacs/windows/
>> [...]
>> now I have included only the dll´s requestet for image support in
>> README.W32 in the ...\emacs-23.3\bin directory, e.g. jpeg 62.dll,
>> libtiff3.dll, libungif4.dll (all downloaded from gnuwin32 project) and
>> libpng14-14.dll ( downloaded from
>> http://trac.mccode.org/browser/branches/mcstas-1.x/support/Win32/gnuplot/libpng14-14.dll?rev=3081)
>>
>> I am not sure what ist meant with:
>> "If you have image support DLLs under different names, customize the
>> value of `dynamic-library-alist'."
> For Emacs 23.3, the correct variable is `image-library-alist'.
>
> If you evaluate `image-library-alist', like this:
>
>   M-: image-library-alist RET
>
> the value tells you which DLLs Emacs looks for when it needs to
> display each image type.  If your DLLs are called differently, you
> will need to modify the value to match the DLLs you have.
thanks for the explanation!
I get the return:
((xpm "libxpm.dll" "xpm4.dll" "libXpm-nox4.dll") (png "libpng14-14.dll" 
"libpng14.dll") (jpeg "jpeg62.dll" "libjpeg.dll" "jpeg-62.dll" 
"jpeg.dll") (tiff "libtiff3.dll" "libtiff.dll") (gif "giflib4.dll" 
"libungif4.dll" "libungif.dll") (svg "librsvg-2-2.dll") (gdk-pixbuf 
"libgdk_pixbuf-2.0-0.dll") (glib "libglib-2.0-0.dll") (gobject 
"libgobject-2.0-0.dll"))

I´ve got only the libpng14-14.dll for png, but that shouldn´t make a 
diffrence as I have only one out of three for gif, should it?

>> Only when I try to open .jpg and .png I get an empty square, and trying
>> to open pdf getting the message: Unable to render file. View extracted
>> text instead? (y or n)
> JPEG images work for me with jpeg62.dll whose size is 127488 bytes and
> date 2005-06-04; I downloaded it long ago from GnuWin32.  Is that what
> you have?
size is the same, the date is 2005-05-15, it is the latest I can find in 
GnuWin32
> As for PNG, I suggest to download from here:
>
>    http://www.gtk.org/download-windows.html
>
> as recommended by README.W32.
>
>
now I took the one from the recommended link, it has some more bytes, 
but changes nothing I can see.

I appreciate any further hint, thanks a lot
Phil