Difference between revisions of "Taking a screenshot"

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[[Category:Graphics and DTP (English)]]
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[[Category:Graphics and desktop publishing]]
[[Category:Utilities (English)]]
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[[cs:Taking a Screenshot]]
[[Category:HOWTOs (English)]]
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[[es:Taking a Screenshot]]
{{i18n|Taking a Screenshot}}
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[[ru:Taking a Screenshot]]
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[[zh-CN:Taking a Screenshot]]
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This article explain different methods to take [[Wikipedia:Screenshot|screenshots]] on your system.
 +
== General methods ==
 +
=== import ===
 +
An easy way to take a screenshot of your current system is using the {{Ic|import}} command:
 +
{{bc|$ import -window root screenshot.jpg}}
  
== import ==
+
{{Ic|import}} is part of the {{Pkg|imagemagick}} package.
  
An easy way to take a screenshot of your curent system is using the import command:
+
Running {{Ic|import}} without the {{Ic|-window}} option allows selecting a window or an arbitrary region interactively.
import -window root screenshot.jpg
+
  
import is part of the imagemagick package.
+
==== Screenshot of multiple X screens ====
 +
If you run twinview or dualhead, simply take the screenshot twice and use {{Ic|imagemagick}} to paste them together:
 +
{{bc|
 +
import -window root -display :0.0 -screen /tmp/0.png
 +
import -window root -display :0.1 -screen /tmp/1.png
 +
convert +append /tmp/0.png /tmp/1.png screenshot.png
 +
rm /tmp/{0,1}.png
 +
}}
  
In case you only want to grab a single window you can use the xwininfo tool to find out it's id. Just run the following command and click into the window you want to take a screenshot of.
+
==== Screenshot of individual Xinerama heads ====
import -window `xwininfo |grep 'Window id:' |cut -d" " -f4` screenshot.jpg
+
Xinerama-based multi-head setups have only one virtual screen. If the physical screens are different in height, you will find dead space in the screenshot. In this case, you may want to take screenshot of each physical screen individually. As long as Xinerama information is available from the X server, the following will work:
 +
{{bc|<nowiki>
 +
#!/bin/bash
 +
xdpyinfo -ext XINERAMA | sed '/^  head #/!d;s///' |
 +
while IFS=' :x@,' read i w h x y; do
 +
    import -window root -crop ${w}x$h+$x+$y head_$i.png
 +
done
 +
</nowiki>}}
  
If you run twinview or dualhead, simply take the screenshot twice and use imagemagick to paste them together:
+
==== Screenshot of the active/focused window ====
import -window root -display :0.0 -screen /tmp/0.png
+
The following script takes a screenshot of the currently focused window. It works with EWMH/NetWM compatible X Window Managers. To avoid overwriting previous screenshots, the current date is used as the filename.
import -window root -display :0.1 -screen /tmp/1.png
+
{{bc|<nowiki>
convert +append /tmp/0.png /tmp/1.png screenshot.png
+
#!/bin/bash
rm /tmp/{0,1}.png
+
activeWinLine=$(xprop -root | grep "_NET_ACTIVE_WINDOW(WINDOW)")
 +
activeWinId=${activeWinLine:40}
 +
import -window "$activeWinId" /tmp/$(date +%F_%H%M%S_%N).png
 +
</nowiki>}}
  
== gimp ==
+
Alternatively, the following should work regardless of EWMH support:
 +
{{bc|$ import -window "$(xdotool getwindowfocus -f)" /tmp/$(date +%F_%H%M%S_%N).png}}
  
You also can take screenshots with gimp (File -> Create -> Screenshot...).
+
=== GIMP ===
 +
You also can take screenshots with GIMP ('''File''' -> '''Create''' -> '''Screenshot'''...).
  
== xwd ==
+
=== xwd ===
 
+
xwd is part of the {{Pkg|xorg-xwd}} package.
xwd is part of the xorg-apps package.
+
  
 
Take a screenshot of the root window:
 
Take a screenshot of the root window:
xwd -root -out screenshot.xwd
+
{{bc|$ xwd -root -out screenshot.xwd}}
 +
 
 +
See the {{ic|man xwd}} for more information.
 +
 
 +
=== scrot ===
 +
 
 +
{{Note|According [http://comments.gmane.org/gmane.comp.misc.suckless/6901 This Thread], {{Pkg|scrot}} does not work with {{Pkg|dwm}} nor {{Pkg|xbindkeys}}.}}
 +
 
 +
 
 +
{{Pkg|scrot}}, which is available in the [[Official Repositories|official repositories]], enables taking screenshots from the CLI and offers features such as a user-definable time delay. Unless instructed otherwise, it saves the file in the current working directory.
 +
{{bc|$ scrot -t 20 -d 5}}
 +
 
 +
The above command saves a dated {{ic|.png}} file, along with a thumbnail (20% of original), for Web posting. It provides a 5 second delay before capturing in this instance.
 +
 
 +
You can also use standard date and time formatting when saving to a file.  e.g.,
 +
{{bc|$ scrot ~/screenshots/%Y-%m-%d-%T-screenshot.png}}
 +
 
 +
saves the screenshot in a filename with the current year, month, date, hours, minutes, and seconds to a folder in your home directory called "screenshots"
 +
 
 +
See {{Ic|man scrot}} for more information. You can simply automate the file to uploaded like so {{ic|https://github.com/kaihendry/Kai-s--HOME/tree/master/bin}}
 +
 
 +
=== imlib2 ===
 +
 
 +
{{Pkg|imlib2}} provides a binary {{ic|imlib2_grab}} to take screenshots.  To take a screenshot of the full screen, type:
 +
{{bc|$ imlib2_grab screenshot.png}}
 +
 
 +
Note that {{Pkg|scrot}} actually uses {{ic|imlib2}}.
 +
== Desktop environment specific ==
 +
=== KDE ===
 +
If you use [[KDE]], you might want to use {{ic|KSnapshot}}, which can also be activated using {{keypress|Prnt Scr}}.
 +
 
 +
KSnapshot is provided by the {{Pkg|kdegraphics-ksnapshot}} package in [extra].
 +
 
 +
=== Xfce ===
 +
 
 +
If you use [[Xfce]] you can install {{Pkg|xfce4-screenshooter}} and then add a keyboard binding:
 +
 
 +
'''Xfce Menu'''  -->  '''Settings'''  -->  '''Keyboard'''  >>>  '''Application Shortcuts'''.
 +
 
 +
If you want to skip the Screenshot prompt, type {{ic|$ xfce4-screenshooter -h}} in terminal for the options.
 +
 
 +
=== GNOME ===
 +
[[GNOME]] users can press {{keypress|Prnt Scr}} or Apps->Accessories->Take Screenshot.
 +
 
 +
{{Note|If {{keypress|Prnt Scr}} complains about not finding {{ic|gnome-screenshot}} or there is no "Take Screenshot" entry in your menu, you will need to install the {{Pkg|gnome-utils}} package from [extra].}}
 +
 
 +
=== Other Desktop Environments or Window Managers ===
 +
For other desktop environments such as [[LXDE]] or window managers such as [[Openbox]] and [[Compiz]], one can add the above commands to the hotkey to take the screenshot. For example,
 +
{{bc|$ import -window root ~/Pictures/`date '+%Y%m%d-%H%M%S'`.png}}
 +
Adding the above command to the {{keypress|Prnt Scr}} key to Compiz allows to take the screenshot to the Pictures folder according to date and time.
 +
Notice that the {{ic|rc.xml}} file in Openbox does not understand commas; so, in order to bind that command to the {{keypress|Prnt Scr}} key in Openbox, you need to add the following to the keyboard section of your {{ic|rc.xml}} file:
 +
 
 +
{{hc|rc.xml|<nowiki>
 +
<!-- Screenshot -->
 +
    <keybind key="Print">
 +
      <action name="Execute">
 +
        <command>sh -c "import -window root ~/Pictures/`date '+%Y%m%d-%H%M%S'`.png"</command>
 +
      </action>
 +
    </keybind>
 +
</nowiki>}}
 +
 
 +
== Taking and uploading screenshots ==
 +
=== zscreen ===
 +
{{AUR|zscreen}} provides a lightweight GUI which allows you to take a screenshot of the entire screen or to select an area and then uploading the screenshot automatically to [http://imgur.com imgur]. For taking the screenshot it uses {{ic|scrot}} and {{ic|zenity}} for the GUI.
  
== scrot ==
+
== Terminal ==
 +
=== Output with ansi codes ===
 +
You can use the {{ic|script}} command, part of the {{Pkg|util-linux}} package.
 +
Just enter {{bc|$ script}} and from that moment, all the output is going to be saved to the {{ic|typescript}} file, including the ansi codes.
  
Scrot, available in the "extra" repository, provides for taking screenshots from the CLI, and offers features such as a user-definable time delay. Unless instructed otherwise, it saves the file in the directory bash was at when the command was launched.
+
Once you are done, just type {{ic|exit}} and the {{ic|typescript}} would ready.
  
scrot -t 20 -d 5
+
The resulting file can be converted to html using the package {{Aur|ansi2html}}, from the [[AUR]].
  
saves a dated .PNG file, along with a thumbnail (20% of original) for Web posting. It provides a five second delay before capturing, in this instance.
+
To convert the {{ic|typescript}} file to {{ic|typescript.html}}, do the following:
  
== KDE ==
+
{{bc|1=$ ansi2html --bg=dark <typescript >typescript.html}}
  
If you use KDE, you might want to use ksnapshot, which can also be activated using <Prt Scr>.
+
Actually, '''some''' commands can be piped directly to ansi2html:
  
== GNOME ==
+
{{bc|<nowiki>$ ls --color|ansi2html --bg=dark >output.html</nowiki>}}
  
You can press <Prt Scr> or Apps->Accessories->Take Screenshot.
+
That does not work on every single case, so in those cases, using {{ic|script}} is mandatory.
  
{{Note|If <Prt Scr> complains about not finding gnome-screenshot or there is no "Take Screenshot" entry in your menu, you will need to install the [http://www.archlinux.org/packages/3154 gnome-utils] package.}}
+
=== Virtual console ===
 +
Install a [[framebuffer]] and use {{Pkg|fbgrab}}, {{Pkg|fbshot}}, or {{Pkg|fbdump}} to take a screenshot.
  
== Virtual console ==
+
If you merely want to capture the text in the console and not an actual image, you can use {{Ic|setterm}}, which is part of the {{Pkg|util-linux}} package.  The following command will dump the textual contents of virtual console 1 to a file screen.dump in the current directory:
 +
{{bc|# setterm -dump 1 -file screen.dump}}
  
Install a [[framebuffer]] and use {{Package Official|fbgrab}} to take a screen shot. Another option is to use {{Package Official|fbshot}}, but that tends to corrupt the image by inverting colors.
+
Root permission is needed because the contents of {{ic|/dev/vcs1}} need to be read.

Revision as of 09:07, 25 April 2013

This article explain different methods to take screenshots on your system.

General methods

import

An easy way to take a screenshot of your current system is using the import command:

$ import -window root screenshot.jpg

import is part of the imagemagick package.

Running import without the -window option allows selecting a window or an arbitrary region interactively.

Screenshot of multiple X screens

If you run twinview or dualhead, simply take the screenshot twice and use imagemagick to paste them together:

import -window root -display :0.0 -screen /tmp/0.png
import -window root -display :0.1 -screen /tmp/1.png
convert +append /tmp/0.png /tmp/1.png screenshot.png
rm /tmp/{0,1}.png

Screenshot of individual Xinerama heads

Xinerama-based multi-head setups have only one virtual screen. If the physical screens are different in height, you will find dead space in the screenshot. In this case, you may want to take screenshot of each physical screen individually. As long as Xinerama information is available from the X server, the following will work:

#!/bin/bash
xdpyinfo -ext XINERAMA | sed '/^  head #/!d;s///' |
while IFS=' :x@,' read i w h x y; do
    import -window root -crop ${w}x$h+$x+$y head_$i.png
done

Screenshot of the active/focused window

The following script takes a screenshot of the currently focused window. It works with EWMH/NetWM compatible X Window Managers. To avoid overwriting previous screenshots, the current date is used as the filename.

#!/bin/bash
activeWinLine=$(xprop -root | grep "_NET_ACTIVE_WINDOW(WINDOW)")
activeWinId=${activeWinLine:40}
import -window "$activeWinId" /tmp/$(date +%F_%H%M%S_%N).png

Alternatively, the following should work regardless of EWMH support:

$ import -window "$(xdotool getwindowfocus -f)" /tmp/$(date +%F_%H%M%S_%N).png

GIMP

You also can take screenshots with GIMP (File -> Create -> Screenshot...).

xwd

xwd is part of the xorg-xwd package.

Take a screenshot of the root window:

$ xwd -root -out screenshot.xwd

See the man xwd for more information.

scrot

Note: According This Thread, scrot does not work with dwm nor xbindkeys.


scrot, which is available in the official repositories, enables taking screenshots from the CLI and offers features such as a user-definable time delay. Unless instructed otherwise, it saves the file in the current working directory.

$ scrot -t 20 -d 5

The above command saves a dated .png file, along with a thumbnail (20% of original), for Web posting. It provides a 5 second delay before capturing in this instance.

You can also use standard date and time formatting when saving to a file. e.g.,

$ scrot ~/screenshots/%Y-%m-%d-%T-screenshot.png

saves the screenshot in a filename with the current year, month, date, hours, minutes, and seconds to a folder in your home directory called "screenshots"

See man scrot for more information. You can simply automate the file to uploaded like so https://github.com/kaihendry/Kai-s--HOME/tree/master/bin

imlib2

imlib2 provides a binary imlib2_grab to take screenshots. To take a screenshot of the full screen, type:

$ imlib2_grab screenshot.png

Note that scrot actually uses imlib2.

Desktop environment specific

KDE

If you use KDE, you might want to use KSnapshot, which can also be activated using Template:Keypress.

KSnapshot is provided by the kdegraphics-ksnapshot package in [extra].

Xfce

If you use Xfce you can install xfce4-screenshooter and then add a keyboard binding:

Xfce Menu --> Settings --> Keyboard >>> Application Shortcuts.

If you want to skip the Screenshot prompt, type $ xfce4-screenshooter -h in terminal for the options.

GNOME

GNOME users can press Template:Keypress or Apps->Accessories->Take Screenshot.

Note: If Template:Keypress complains about not finding gnome-screenshot or there is no "Take Screenshot" entry in your menu, you will need to install the gnome-utils package from [extra].

Other Desktop Environments or Window Managers

For other desktop environments such as LXDE or window managers such as Openbox and Compiz, one can add the above commands to the hotkey to take the screenshot. For example,

$ import -window root ~/Pictures/`date '+%Y%m%d-%H%M%S'`.png

Adding the above command to the Template:Keypress key to Compiz allows to take the screenshot to the Pictures folder according to date and time. Notice that the rc.xml file in Openbox does not understand commas; so, in order to bind that command to the Template:Keypress key in Openbox, you need to add the following to the keyboard section of your rc.xml file:

rc.xml
<!-- Screenshot -->
    <keybind key="Print">
      <action name="Execute">
        <command>sh -c "import -window root ~/Pictures/`date '+%Y%m%d-%H%M%S'`.png"</command>
      </action>
    </keybind>

Taking and uploading screenshots

zscreen

zscreenAUR provides a lightweight GUI which allows you to take a screenshot of the entire screen or to select an area and then uploading the screenshot automatically to imgur. For taking the screenshot it uses scrot and zenity for the GUI.

Terminal

Output with ansi codes

You can use the script command, part of the util-linux package.

Just enter
$ script
and from that moment, all the output is going to be saved to the typescript file, including the ansi codes.

Once you are done, just type exit and the typescript would ready.

The resulting file can be converted to html using the package ansi2htmlAUR, from the AUR.

To convert the typescript file to typescript.html, do the following:

$ ansi2html --bg=dark <typescript >typescript.html

Actually, some commands can be piped directly to ansi2html:

$ ls --color|ansi2html --bg=dark >output.html

That does not work on every single case, so in those cases, using script is mandatory.

Virtual console

Install a framebuffer and use fbgrab, fbshot, or fbdump to take a screenshot.

If you merely want to capture the text in the console and not an actual image, you can use setterm, which is part of the util-linux package. The following command will dump the textual contents of virtual console 1 to a file screen.dump in the current directory:

# setterm -dump 1 -file screen.dump

Root permission is needed because the contents of /dev/vcs1 need to be read.