Hi Jan D,

Thank you very much! It worked.

Best regards,
Xiaolong

On Fri, May 8, 2015 at 1:44 AM, Jan D. <jan.h.d@swipnet.se> wrote:

> Hi.
>
> C-h f x-gtk-use-system-tooltips <RET>
>
> x-gtk-use-system-tooltips is a variable defined in `C source code'.
> Its value is t
>
> Documentation:
> If non-nil with a Gtk+ built Emacs, the Gtk+ tooltip is used.
> Otherwise use Emacs own tooltip implementation.
> When using Gtk+ tooltips, the tooltip face is not used.
>
> You can customize this variable.
>
> System tooltips only support text.  Showing images in tooltips is perverse
> IMHO.
>
>         Jan D.
>
>
> > 6 maj 2015 kl. 20:57 skrev Xiaolong Zhang <xlzhang921@gmail.com>:
> >
> >
> > Hi list,
> >
> > The Dired+ package has a feature that with on a image filename, it will
> > display a thumbnail of that image. However, it seems that emacs does not
> > render tooltip correctly on my machine.
> >
> > Here is a code snippet I used for testing.
> >
> >
> >
> -----------8<---------------8<-----------------------------------------------
> > ;; text in buffer can show image correctly
> > (insert (propertize "text" 'display (create-image
> "~/Dropbox/images/1.jpg")))
> >
> > ;; tooltip can't render image correctly
> > (defun get-tooltip(window object pos)
> > (propertize "tooltip" 'display (create-image "~/Dropbox/images/1.jpg")))
> > (insert (propertize "text" 'mouse-face 'highlight 'help-echo
> 'get-tooltip))
> >
> >
> -----------8<---------------8<--------------------------------------------
> >
> > This file line can insert an image rendered in the buffer
> > correctly. However, the second inserted text only show tooltip text, but
> > not the image.
> >
> > I have tested the same code with the same image file on Ubuntu
> > 12.04/14.04 with Emacs (24.5.1) -Q option. Both failed.
> >
> > I have also tested the code on a Windows 8.1 machine with pre-build
> > Emacs 24.5. It render the tooltip image correctly.
> >
> > I'm wondering if this is a bug of Emacs or Ubuntu?
> >
> > Following is some auto-generated message for bug-report, so I keep it
> FYI.
> >
> > Thank you guys!
> >
> > Best,
> > Xiaolong
> >
> > In GNU Emacs 24.5.1 (x86_64-unknown-linux-gnu, GTK+ Version 2.24.10)
> > of 2015-05-07 on xlzhang-HP-EliteBook-Folio-9470m
> > Windowing system distributor `The X.Org Foundation', version
> 11.0.11501000
> > System Description: Ubuntu 12.04.5 LTS
> >
> > Important settings:
> > value of $LANG: en_HK.UTF-8
> > value of $XMODIFIERS: @im=fcitx
> > locale-coding-system: utf-8-unix
> >
> > Major mode: Emacs-Lisp
> >
> > Minor modes in effect:
> > tooltip-mode: t
> > electric-indent-mode: t
> > mouse-wheel-mode: t
> > tool-bar-mode: t
> > menu-bar-mode: t
> > file-name-shadow-mode: t
> > global-font-lock-mode: t
> > font-lock-mode: t
> > blink-cursor-mode: t
> > auto-composition-mode: t
> > auto-encryption-mode: t
> > auto-compression-mode: t
> > line-number-mode: t
> > transient-mark-mode: t
> >
> > Recent messages:
> > Mark set
> > Undo!
> > get-tooltip
> > nil
> > Undo!
> > nil
> > Undo!
> > Saving file /home/xlzhang/code/emacs-bug/emacs-bug.el...
> > Wrote /home/xlzhang/code/emacs-bug/emacs-bug.el
> > Making completion list...
> >
> > Load-path shadows:
> > None found.
> >
> > Features:
> > (shadow sort gnus-util mail-extr emacsbug message format-spec rfc822 mml
> > mml-sec mm-decode mm-bodies mm-encode mail-parse rfc2231 mailabbrev
> > gmm-utils mailheader sendmail rfc2047 rfc2045 ietf-drums mm-util
> > help-fns mail-prsvr mail-utils help-mode easymenu time-date tooltip
> > electric uniquify ediff-hook vc-hooks lisp-float-type mwheel x-win x-dnd
> > tool-bar dnd fontset image regexp-opt fringe tabulated-list newcomment
> > lisp-mode prog-mode register page menu-bar rfn-eshadow timer select
> > scroll-bar mouse jit-lock font-lock syntax facemenu font-core frame cham
> > georgian utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao
> > korean japanese hebrew greek romanian slovak czech european ethiopic
> > indian cyrillic chinese case-table epa-hook jka-cmpr-hook help simple
> > abbrev minibuffer nadvice loaddefs button faces cus-face macroexp files
> > text-properties overlay sha1 md5 base64 format env code-pages mule
> > custom widget hashtable-print-readable backquote make-network-process
> > gfilenotify dynamic-setting system-font-setting font-render-setting
> > move-toolbar gtk x-toolkit x multi-tty emacs)
> >
> > Memory information:
> > ((conses 16 72398 9042)
> > (symbols 48 17485 0)
> > (miscs 40 40 138)
> > (strings 32 9263 4439)
> > (string-bytes 1 254881)
> > (vectors 16 8985)
> > (vector-slots 8 383624 17310)
> > (floats 8 63 253)
> > (intervals 56 202 11)
> > (buffers 960 13)
> > (heap 1024 11163 546))
> >
> >
> >
>
>