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$ import -window "$(xdotool getwindowfocus -f)" /tmp/$(date +%F_%H%M%S_%N). Import -window "$activeWinId" /tmp/$(date +%F_%H%M%S_%N).pngĪlternatively, the following should work regardless of EWMH support: To avoid overwriting previous screenshots, the current date is used as the filename.ĪctiveWinLine=$(xprop -root | grep "_NET_ACTIVE_WINDOW(WINDOW)")
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It works with EWMH/NetWM compatible X Window Managers. With ImageMagick you can create GIFs dynamically making it suitable for Web applications. The following script takes a screenshot of the currently focused window. ImageMagick is a robust collection of tools and libraries to read, write, and manipulate an image in any of the more popular image formats including GIF, JPEG, PNG, PDF, and Photo CD. Import -window root -crop $x$h+$x+$y head_$i.png Xdpyinfo -ext XINERAMA | sed '/^ head #/!d s///' | As long as Xinerama information is available from the X server, the following will work: In this case, you may want to take screenshot of each physical screen individually. If the physical screens are different in height, you will find dead space in the screenshot. Then there is the occasional format that also supports LAB (that is CieLAB) (e.g. The software feels a bit anachronistic because it has no GUIbut to its credit it. EXR, DPX, CIN, HDR) or only linear GRAY (e.g. ImageMagick is a command-line tool for image conversion and processing. In Ubuntu 18.04 that is found in /etc/ImageMagick-6.It is set as read-only, so I temporarily changed the write permissions with sudo chmod 777 policy.xml from within that folder. ImageMagick, invoked from the command line as magick, is a free and open-source cross-platform software suite for displaying, creating, converting, modifying, and editing raster images. The method was to change the settings for Resource limits in the file handling that in ImageMagick, called policy.xml. Xinerama-based multi-head setups have only one virtual screen. A majority of the image formats assume an sRGB colorspace (e.g. I was able to find a solution through the ImageMagick forum. Import -window root -display :0.1 -screen /tmp/1.pngĬonvert +append /tmp/0.png /tmp/1.png screenshot.png Import -window root -display :0.0 -screen /tmp/0.png If you run twinview or dualhead, simply take the screenshot twice and use imagemagick to paste them together: I think it is easier to remember than the elegant method by Steeldriver (who uses only convert and no for construct).Note: If you prefer graphicsmagick alternative, just prepend "gm", e.g. This works in bash, which is the standard shell of Ubuntu. The following one-liner should do the job for f in.
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Of the array in turn, and the expansion is the resultant list. Subscripted with or *, the pattern removal operation is applied to each member Additionally, you may find xargs handy if your text comes from the other command and. Use the convert program to convert between image formats as well as resize an image, blur, crop, despeckle, dither, draw on, flip, join, re-sample. If your goal is to create an image from a short plain text you can try the label format: convert -background black -fill green -pointsize 84 -font Helvetica label:Unix&Linux test.png. The pattern removal operation is applied to each positional parameter in turn,Īnd the expansion is the resultant list. Anyway, the text format is used rather for paging text on multiple pages. Longest matching pattern (the ``%%'' case) deleted. Value of parameter with the shortest matching pattern (the ``%'' case) or the If the pattern matches a trailing portion of theĮxpanded value of parameter, then the result of the expansion is the expanded The word is expanded to produce a pattern justĪs in pathname expansion. In a for loop it is possible to use the features described in man bash at Parameter Expansion