Windows下的Emacs和PNG文件 [英] Emacs under Windows and PNG files

问题描述

任何人都有任何指针，让PNG图像显示在Emacs 23 Win32？..我已经安装了gnuwin32的一些工具，包括libpng和zlib; C：\Program Files\GnuWin32\bin在路径中。 JPG文件开始工作，但不是PNG。我很感激任何提示，让这个工作。

编辑：PNG缩略图实际上显示正常（例如通过C-t C-t）。但是，打开它们失败（在基本模式下打开垃圾，Mx映像模式说无效映像规范）。

解决方案

您必须将这些DLL中的一个libpng12d.dlllibpng12.dlllibpng.dlllibpng13d.dlllibpng13.dll复制到您的emacs-23.1 / bin /目录中。它们需要您必须复制的zlib1.dll。我为jpeg62.dll和giflib4.dll做了同样的事情，现在我的emacs支持jpg，gif和png文件。由于某种原因，如果我只是将这些dll放在路径中，它不起作用。

您可以检查（image-type-available-p' png）以查看是否支持png。将图像类型映射到支持它的dll列表

Would anyone have any pointers on getting PNG images to display in Emacs 23 under Win32?.. I have installed the gnuwin32 set of utilities, including libpng and zlib; C:\Program Files\GnuWin32\bin is in path. JPG files started working but not PNGs. I'd appreciate any hints on getting this to work.

EDIT: PNG thumbnails actually display fine (e.g. in dired via C-t C-t). However, opening them fails (opens as garbage in fundamental mode, and M-x image-mode says "invalid image specification").

解决方案

You have to copy one of these dlls "libpng12d.dll" "libpng12.dll" "libpng.dll" "libpng13d.dll" "libpng13.dll" to your emacs-23.1/bin/ directory. They require zlib1.dll which you have to copy as well. I did the same thing for jpeg62.dll and giflib4.dll and now my emacs supports jpg, gif and png files. For some reason it does not work if I simply put these dlls in the path.

You can check (image-type-available-p 'png) to see if png is supported. image-library-alist maps image type to a list of dlls which support it.

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