Variable: image-dired-cmd-create-thumbnail-program

image-dired-cmd-create-thumbnail-program is a customizable variable defined in image-dired-external.el.gz.

Value

"convert"

Documentation

File name of the executable used to create thumbnails.

Used together with image-dired-cmd-create-thumbnail-options. On MS-Windows, if such an executable is not available, Emacs will use w32image-create-thumbnail to create thumbnails.

This variable was added, or its default value changed, in Emacs 29.1.

Source Code

;; Defined in /usr/src/emacs/lisp/image/image-dired-external.el.gz
(defcustom image-dired-cmd-create-thumbnail-program
  (if (executable-find "gm") "gm" "convert")
  "File name of the executable used to create thumbnails.
Used together with `image-dired-cmd-create-thumbnail-options'.
On MS-Windows, if such an executable is not available, Emacs
will use `w32image-create-thumbnail' to create thumbnails."
  :type 'file
  :version "29.1")