Date: Sun, 14 Jan 2024 21:52:00 +0800
From: Jinsong Zhao <jszhao@yeah.net>
I am not a skilled Emacs user. I mainly use Emacs as a front end for Maxima
with the help of
imaxima. imaxima converts Maxima output into PNG image, which are then
displayed in Emacs. I am
using Windows 10.
It works fine on Emacs 28.2, when I type an expression, e.g. q^2 = 1; and
return, Emacs 28.2
immediately displays the resulting PNG image.
If I use Emacs 29.1, however, all I get after returning is an empty square. And
if I type another
expression and return, a blank square appears. At the same time, the first
empty square was
replaced by a PNG image of the first expression. That's weird.
I saw the following messages in the *Messages* buffer:
Processing Maxima output...done
Unable to load image (image :type png :file
c:/Users/Jinso/AppData/Local/Temp/imaximatU5Y9B/1 :
scale 1.001595744680851 :ascent center :mask (heuristic (color-values
imaxima-bg-color)) :
transform-smoothing t) [35 times]
Process imaxima finished
After (setq w32-use-native-image-API nil), imaxima has the same behaviour on
Emacs 28.2 and
29.1.
Thanks, but we'd need an example of such a PNG image to investigate.
Can you send one such image, which works with w32-use-native-image-API
nil, but not when it is non-nil?
In any case, it is perfectly okay to reset w32-use-native-image-API to
nil if the native image APIs fail to process an image you want to see.
That's why we support both modes.