how to snapshot a gui window

[Hanry Zhou]

I have a SUN workstation and running CDE environment.

I wanted to snapshot a gui window of a software, and save to a file. how do i do that?

thanks in advance.

Zhou

[Sridhar Bhaskarla · Accepted solution]

Hi Zhou,


You can use xwd to capture the x-window and then xpr to print it out. xwd is under /usr/X/bin on SUN I believe.

-Sri

[S.K. Chan]

Check if you got "xwd" and "xpr".
$ man xpr
$ man xwd
The xwd allow you to dump an x window image to a file and xpr prints it. All I know and used quite a lot is xv. You may want to download it.
http://www.trilon.com/xv/whatisxv.html

[Hanry Zhou]

Thank you very much for the response.

I do have xwd, But how do I use it? how do I actually dump the window though?

zhou

[S.K. Chan]

This is what works for me on my HP box ..
$ cd /tmp
$ xwd -out myscreen
==> At this point your cursor will turn to a "plus" sign. Drag your mouse to the frame of the window you want to capture and click it. The file "myscreen" will contain the dump image. You can then view it with ..
$ xwud -in myscreen

[Sridhar Bhaskarla]

Hi Zhou,

Run xwd with -out argument.

$xwd -out /tmp/xwd.out

Then click the target window.

You can view the file back using xwud

$xwud -in /tmp/xwd.out

To print the xwd dump file, use "xpr".

$xpr -device ps /tmp/xwd.out |lp -ops -dyour_printername

-Sri

[A. Clay Stephenson]

To capture a window:

1) Open a terminal session:

xwd -out /tmp/myimage

xwd will just sit there. Now move the mouse to the desired window and click. You will hear one beep (dump starting) and then two beeps (done).

The data is captured in /tmp/image and xwd terminates.

2) To print: (This example is a LaserJet)

xpr -device ljet /tmp/myimage | lp -dmyprinter

Man xwd, xpr for details.

[Hanry Zhou]

I am slow man, but when I run
xwd -out myscreen

I got message:
unable to open display ''

Please help!

[Sridhar Bhaskarla]

Hi,

Your display variable is not set to access the local X server.

DO

$who -m

(note down the IP address|hostname in the last field. If you haven't directly logged onto the box from here, then find out the IP address of the local system).

$DISPLAY=(IP ADDRESSS):0.0
$export DISPLAY
$/usr/X/bin/xwd

-Sri

[Sridhar Bhaskarla]

Hmm.. the fundamental question is how did you get your Software GUI started if the display is not set. The DISPLAY would most probably be localhost:0.0. Or take a new window and try.

-Sri

[Suhas_2]

Hi Zhou,
You need to export the DISPLAY variable with the IP address of the workstation.
Secondly on the workstation you must execute the command "xhost +" , then only you can open an X-window session.

Regards'
Suhas