From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Hongyi Zhao Newsgroups: gmane.emacs.help Subject: Re: Screenshots, frame shots straight from Emacs Date: Fri, 23 Jul 2021 18:28:28 +0800 Message-ID: References: <87sg1dgbbk.fsf@omarpolo.com> <87pmwhg843.fsf@omarpolo.com> <8735t96mxj.fsf@omarpolo.com> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="25435"; mail-complaints-to="usenet@ciao.gmane.io" To: Hongyi Zhao , Omar Polo , help-gnu-emacs Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Fri Jul 23 12:32:41 2021 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1m6sTx-0006TZ-2B for geh-help-gnu-emacs@m.gmane-mx.org; Fri, 23 Jul 2021 12:32:41 +0200 Original-Received: from localhost ([::1]:43578 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1m6sTw-0005t0-35 for geh-help-gnu-emacs@m.gmane-mx.org; Fri, 23 Jul 2021 06:32:40 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:59660) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1m6sQB-0001qh-W0 for help-gnu-emacs@gnu.org; Fri, 23 Jul 2021 06:28:48 -0400 Original-Received: from mail-lj1-x22b.google.com ([2a00:1450:4864:20::22b]:44644) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1m6sQ6-0001a3-Nx for help-gnu-emacs@gnu.org; Fri, 23 Jul 2021 06:28:47 -0400 Original-Received: by mail-lj1-x22b.google.com with SMTP id a7so1073698ljq.11 for ; Fri, 23 Jul 2021 03:28:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to; bh=DJgQx2uoI0aNw9SM+tcS3yMtpQuYZ8mRm6yfbJPbk6c=; b=jO6TUykD/ZLafc0BpjroHdmOrPhJLchV99pp60+c+kjiIpoNx2HZd0tPBGHcjYosfi h3xgBra1bhSNduDn82CrJeZAHXbBQFv30lb9bzQjCr0bpEk8o+C/7QYXPxQa1mxdPilC 2spJBe/cnF9TWfU91zBr6VzB9n35AV2PZ1w8kutDPbAX55k7B/1qztdDyj/kLNUJZeOQ LbvmihXhAC7VnVqOQiYKSszMS8f3960Tpk4J6Rb2/6d/kaM5ULFYhUOKK79P5sfdh6P2 0WSz7yqzxsOPfXusuor0lG203SRy04BbYyFUk+i6p79g6+762QUTOytaEQ8o6q431kmB TQkg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to; bh=DJgQx2uoI0aNw9SM+tcS3yMtpQuYZ8mRm6yfbJPbk6c=; b=ry4nu4y1pw9op3MkyOF6oQ+egGe5bYaIDw+03O0YWefUmKr6oexYrLRkOH2ArGDalL 6Z7ZaY49LLU/Vt+dRRrf7zvSGfAE5+ovSjspBHdNJ7nuby+YwbB0GUxx0iAQVuxoWx4D PVPyK0lBPF8xyYfFIHLAKYxWf/oFjB71ySgYwu4cfmHYZvZl6FDJXxx22f7S+Z3mxJHJ Rj6NlZQjBv0Hfq0fILrI675G24jdEg96E7x+1E7Dqf5pPGB7QCiTwXwmdhGg7ZDuG20k FqWohGQLuOrPlNqP5JQpYjiOQmt4xXXIpMOMQLBEWSC1JVXGkEBcZS3HsqGinLfY8xX7 b6Ag== X-Gm-Message-State: AOAM533sD+cwI7mhczLjD5xcRG4tJsDtYbwF9GFIqJLfpGP3EMjxT6b2 2YtuynXrMxUBiujP2QFTZtIiJiGKWPKoq3kCdp0= X-Google-Smtp-Source: ABdhPJxkTfEScpKwA+uPFjTiG7JsJ1zdZ9GnaYRM0m+VJYt7PX5T8cQIvYkalFNh+kPBm6FKeqfMCsQ7UYe0PQZMDvM= X-Received: by 2002:a2e:bd0c:: with SMTP id n12mr2842598ljq.447.1627036120485; Fri, 23 Jul 2021 03:28:40 -0700 (PDT) In-Reply-To: Received-SPF: pass client-ip=2a00:1450:4864:20::22b; envelope-from=hongyi.zhao@gmail.com; helo=mail-lj1-x22b.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "help-gnu-emacs" Xref: news.gmane.io gmane.emacs.help:132074 Archived-At: On Fri, Jul 23, 2021 at 4:56 PM Hongyi Zhao wrote: > > On Fri, Jul 23, 2021 at 1:55 PM Jean Louis wrote: > > > > * Hongyi Zhao [2021-07-23 03:53]: > > > 1. Have the delay feature, so that I can do some operations before the > > > screenshot is captured, say, click on mouse button, open a dropdown > > > menu, and so on. > > > > This improved function will allow that you invoke for example: > > > > C-5 M-x frameshot to delay for 5 seconds. > > Good idea. > > > But this Emacs function I think will not allow to get the screenshot of the dropdown, maybe it > > requires using threads, now I don't know how to do it within Emacs. > > Anyway, thank you very much for your help. > > > (defun frameshot (&optional prefix) > > "Save Emacs frame as frame shot. > > > > Directory is determined by variable `frameshot-directory' and if > > not defined, it will be saved in the `$HOME' directory." > > (interactive "p") > > (let ((delay (or prefix 0))) > > (run-with-timer > > delay nil > > (lambda () > > (let* ((image (x-export-frames nil (or frameshot-format 'png))) > > (base-directory (or frameshot-directory (getenv "HOME"))) > > (directory (concat (file-name-as-directory base-directory) (format-time-string "%Y/%m/%Y-%m-%d/"))) > > (file (concat directory (format-time-string "Screenshot-%Y-%m-%d-%T.") (symbol-name frameshot-format)))) > > (make-directory directory t) > > (with-temp-file file > > (insert image)) > > (find-file directory) > > (message "Frame shot saved as `%s'" file)))))) > > > > To capture all screen I am using this external Common Lisp script, > > that invokes maim: > > > > #!/usr/bin/clisp > > > > (load "/home/data1/protected/Programming/git/RCDBusiness/lib/lisp/date-time.lisp") > > > > (defparameter *image-capture-program* "maim") > > (defparameter *image-type* ".png") > > (defparameter *image-directory* "/home/data1/protected/Media/Pictures/Screenshots") > > > > (let* ((filename (concatenate 'string (timestamp-filename) *image-type*)) > > (year (substring filename 0 4)) > > (month (substring filename 5 7)) > > (date (substring filename 0 10)) > > (directory (concatenate 'string *image-directory* "/" year "/" month "/" date "/")) > > (command (concatenate 'string *image-capture-program* " \"" directory filename "\"")) > > (rox-command (concatenate 'string "rox " directory))) > > (print directory) > > (print command) > > (ensure-directories-exist directory) > > (shell command) > > (shell rox-command)) > > > > You could install either `maim' or other system screenshot program and > > use that one. > > Thank you for recommending `maim' to me. From its official description > [1], it can be seen as an improved scrot, which is the one used by me > now. > > [1] https://github.com/naelstrof/maim Further comment, based on my tries and the discussions here [1], the imagemagick and shutter [2] are more powerful and versatile than maim and scrot. [1] https://askubuntu.com/questions/584778/how-to-capture-a-drop-down-menu [2] https://github.com/shutter-project/shutter > > > 2. Have the post-processing feature, which can be used for some > > > touch I am not sure whether the recommended method here has these > > > characteristics. > > > > I am often using few simple functions for processing that invoke > > ImageMagick: > > > > (defvar *image-default-resize-size* 1536) > > (defvar *image-resize-sizes* '()) > > > > ;; This function optimizes image for websites to reach the optimum > > ;; Internet speed > > > > (defun optimize-image-jpg (file &optional quality) > > "Optimizes the JPG image with quality 70%" > > (if (rcd-which-list '("mogrify")) > > (let ((extension (file-name-extension file)) > > (quality (or quality "70"))) > > (when (string-match "\\(?:\\(?:jpe?\\|pn\\)g\\)" (downcase extension)) > > (message "Optimizing `%s'" file) > > (call-process "mogrify" nil "-sampling-factor" "4:2:0" "-strip" "-interlace" "JPEG" "-colorspace" "RGB" "-format" "jpg" "-quality" quality file) > > (message "Optimizing FINISHED for `%s'" file))) > > (rcd-warning-message "RCD ERROR: `mogrify' not found in $PATH"))) > > > > ;; Mark files in Dired, optimize images > > > > (defun optimize-jpg-images-dired () > > "Optimizes JPG images inside of Dired" > > (interactive) > > (let ((files (dired-get-marked-files))) > > (while files > > (optimize-image-jpg (pop files))) > > (revert-buffer))) > > > > (defun image-resize (file &optional size) > > "Resizes the JPG image with default size" > > (if (rcd-which-list '("mogrify")) > > (let ((extension (file-name-extension file))) > > (when (or (equal (downcase extension) "jpg") > > (equal (downcase extension) "png")) > > (let* ((file (shell-double-quote file)) > > (command (format "mogrify -resize %s \"%s\"" size file))) > > (message command) > > (call-process-shell-command command)))) > > (rcd-warning-message "RCD ERROR: `mogrify' not found in `$PATH'"))) > > > > ;; Mark files in dired, resize images > > > > (defun image-resize-dired () > > "Resizes images" > > (interactive) > > (let ((files (dired-get-marked-files)) > > (size (read-number "Size: " *image-default-resize-size* '*image-resize-sizes*))) > > (while files > > (image-resize (pop files) size)) > > (revert-buffer))) > > > > If you know what exactly you wish to do to images then it is possible > > to use same methods and invoke ImageMagick processing. > > Other possible processing includes highlighting some regions with > square or circle, adding some text comments, and drawing some lines > or arrows, and so on. I'm not sure whether all these trivial > operations can be done by the method similar to the above. > > Regards, > Hongyi -- Assoc. Prof. Hongyi Zhao Theory and Simulation of Materials Hebei Vocational University of Technology and Engineering No. 473, Quannan West Street, Xindu District, Xingtai, Hebei province