Automated screen captures in emulator tests

Hi all
I'm created a "virtual user" to run and test my midp apps by running them in j2meunit environment which in turn is run in the toolkit emulator. All this is run in my Ant build.
I would like from my j2meunit tests to be able to create screen captures for my documentation. I do this routinely with my J2SE applications when run in JUnit or JFCUnit but I really like to be able to create these documentation screen captures (screen shots or screen dumps) automatically.
Could anyone help me or point me in the right direction?
Thanks in advance!
Morten

I have since recalled the tool I was thinking of was an authoring tool and the problem I had when I looked at it was I couldn't write the topics the way I wanted and I couldn't use it as a tool to extract the images. I might have used it just for that purpose.
Take a look at http://www.indoition.com and download the PDF there. It lists lots of tools and may you will find something in that.
If you do find something that works for you, don't forget to post back here.
See www.grainge.org for RoboHelp and Authoring tips
@petergrainge

Similar Messages

Fascinating automated screen capture tool

Hello Java Experts
THE SITUATION
============
At least 4 times a year, I get email advertising where they seem to do a screen capture on the home page of my web site, scale it down to 20%, insert it into a template and send it to me.
I guess they are getting all URLs from a domain registry crawl.
then they send out a web crawler that does an automated screen capture.
QUESTION
=========
I'm really curious to know how to do such an automated screen capture with java.
If anyone has any idea how to implement such a solution , I would be glad to hear it.
I know java can be programmed to download all the HTML Code and even the gif/jpg files of the <img/> tags.
but how would you automatically, capture and scale it down to about 20% of the original size and save it.
Stev

you said "I'm guessing java wouldn't be the best way to go. "
I'm under the impression that java can do everything. The trick might be to find out how to do it.
I
'll propose one really bad and slow way to do it.
There is already a swing component that will translate HTML code (that was gathered) into the actual web page.
Now I believe there is a Robot API that will perform clicks of the keyboard and mouse and simulate an actual user at the computer.
In this case , you could make it simulate the buttons to do a print screen .
You could use the robot API to make it paste the result some place and do whatever transformations and saving of the object needed.
I realize this is a bad way to do it because it is so slow. But it is automated.
However I am under the impression there is a way to do this effectively and very fast with java.
I'm guessing it would be using the new nio package in java 1.4
stephen

Automated Screen Capture

I was wondering, can anyone think of a way of automating a method of obtaining a screen capture for a list of websites? E.g. let's say I have a list of URLs and I want to get a screen capture of each webpage, does anyone know how I might go about doing it quickly?
The only way I could think of doing it was using the Robot package to swtich to a web browser, take a screen capture, and then process the image.... I was just wondering if anyone could think of a neater way of doing it?
many thanks
BBB

you said "I'm guessing java wouldn't be the best way to go. "
I'm under the impression that java can do everything. The trick might be to find out how to do it.
I
'll propose one really bad and slow way to do it.
There is already a swing component that will translate HTML code (that was gathered) into the actual web page.
Now I believe there is a Robot API that will perform clicks of the keyboard and mouse and simulate an actual user at the computer.
In this case , you could make it simulate the buttons to do a print screen .
You could use the robot API to make it paste the result some place and do whatever transformations and saving of the object needed.
I realize this is a bad way to do it because it is so slow. But it is automated.
However I am under the impression there is a way to do this effectively and very fast with java.
I'm guessing it would be using the new nio package in java 1.4
stephen

Localization - Automated Screen Captures?

Hi RHelpers,
I'm wondering how many of you localize your projects, and if you do, do you use or know of any tools to automate the screen capture process? Our RH projects contain thousands of images of our UI in them and we simply can't keep up with our standard process of getting the localized .htms back from localization and then trying to get screen captures on the backend. We support 15 non-English languages and will likely add more. There's just no way to keep up without such a tool. Just wondering what you all use or if your translators take care of the images along with the text.
Thanks,
Jared
RH 7.0.3
Win 7 - 64 Bit
HTMl Help (.chm) Output

I have since recalled the tool I was thinking of was an authoring tool and the problem I had when I looked at it was I couldn't write the topics the way I wanted and I couldn't use it as a tool to extract the images. I might have used it just for that purpose.
Take a look at http://www.indoition.com and download the PDF there. It lists lots of tools and may you will find something in that.
If you do find something that works for you, don't forget to post back here.
See www.grainge.org for RoboHelp and Authoring tips
@petergrainge

GPIB instrument Screen Capture in Definite Length Block format

Need help for a person wanting to convert to LabView!
I need to do a screen capture of an Agilent spectrum analyzer (Model 4408B) and this SA will output an image in JPEG in 488.2 Definite Length Block format. This means the JPEG file will have a header that starts with a "#", is followed by a single digit that gives the length of a following count field, and then the count field, which gives the length of data being sent. For example, to send a block of 1024 bytes, the header would have the form "#41024".
We do a lot a screen captures in our testing, so we have a many programs in Agilent VEE to do this on a routine basis. In VEE, there is a function called Read BINBLOCK which reads the image data and strips of the header mentioned above before we write the data to a file.
I started to port this program to Labview to see if we can speed up our testing (in general, not for screen capture). So with Labview 6, I use the "GPIB Read" function to read the image data from the GPIB bus, then write the data into a file. But using a probe, I found that header mentioned above is still there and any image program wouldn't read the image file at all (Can't Open or Can't Determine Type). Furthermore, the "Write File" function in Labview adds some additional header before the "#41024"-type header mentioned above.
By the way, I tried the GPIB function "RECEIVE" instead of the "GPIB Read" function above and got exactly the same result.
So the problem has 2 parts:
1. Is there a way to read, or receive, Definite Length Block data from the GPIB bus (similar to VEE's Read BINBLOCK function).
2. Is there a way to prevent Labview's "Write File" function not to add some other header of its own to the saved file.
NOTE: In the "Write File" function, I experimented with using a Pos_Offset value ranging from 1 to 8, in order to get rid of the header caused by part 1 above. But anytime the Pos_Offset value is greater than zero, the saved file will be empty!
I appreciate any help from the Labview community for this seemingly simple problem.

Ray K., you are a scholar and a gentleman! I appreciate your extremely helpful suggestion.
I tried your suggested VI to strip off the header portion added by the 488.2 Definite Length Block format, and with a little modification, it works like a charm. The only thing is that I have to use the "RECEIVE" function (the "GPIB Read" function wouldn't work). But "RECEIVE" works beautifully, and that's what counts.
The only minor issue is that you have to set the Byte Count of the "RECEIVE" function to tell it the size of the file being received. If Byte Count is not wired, no data will be recieved, even if you set the mode to 1 or 2 to detect the end of file. If Byte Count is set to a number greater than the actual file size, it will work OK. In this case,
I know the file size so I can set Byte Count correctly. But is there a way for the "RECEIVE" function to detect automatically the End of File so that I don't have to fumble around with Byte Count? As I said, I set Mode value to to 1, 2, or other values but that wouldn't work either.
Both the "Write File" function (with Header set to False, which is the default) and the "Write Characters to File" VI work perfectly as you pointed out.
My only remaining question is why "GPIB Read" wouldn't work (with any value of Mode setting and Byte Count) while "RECEIVE" function works. "GPIB Read" did receive the GIF file, but it can't be opened.
Thank you for your great help.

Automated screen/window capture with Applescript?

Is it possible to automate screen capture in an automated, non-interactive way, using Applescript?
I know it is possible to use the terminal screencapture command in an Applescript to capture the whole screen, but the screencapture options to either select an area of the screen or a particular window require user interaction at run time to select the screen area or the target window.
What I need is to be able to specify - in the script itself - the area of the screen to capture, or the name of the window to capture, and have this happen without user interaction.
Is this possible? Are the undocumented ways of passing area or window information to screencapture? Or some other Finder/System way of doing it?
(with some research I found references to an app called FreeSnap which is allegedly scriptable - but it had been removed from all the usual sources as well as the original developer site. If there's no direct Applescript/Finder/System way to do the above, are there any third-party scriptable screenshot Apps which can do it?)
Thanks.

Hi brendan
Here is the code:
set tmpPath to ((POSIX path of (path to desktop)) & "screenpic.png") as string
do shell script "screencapture " & quoted form of tmpPath
delay 1.5
set this_file to tmpPath
try
tell application "Image Events"
launch
set this_image to open this_file
set {docWidth, docHeight} to the dimensions of this_image
crop this_image to dimensions {400, 200}
save this_image with icon
close this_image
end tell
on error error_message
display dialog error_message
end try
Hope this helps

Pb G4 1.67Ghz running OS 10.4, right side of the screen 2, pixel wide vertical lines, a few days later colors posterized on pics and vid. Vertical lines don't show screen capture, but pics still posterized. Hardware test from disk shows ok.

Right side of screen started showing 2, pixel wide vertical lines. A few day later colors in pics and vid posterized. Vertical lines don't show in screen capture but pics still bad. Ran hardware test from disk, ok, adjusted color in sys prefs, new profiles a bit better but still bad, mpeg worse, jpeg bad. No better in new user account. Now a month later, right side has 8 vert lines and occasionally a slightly darker area in bottom corners for a few seconds. Reset pram, battery plugged into adaptor 99%. I can notice, for a slit second, when the screen saver is on, when I move cursor to get back to desktop, true color of image can be seen for a flash of a second.

sorry, was in a rush, any suggestions to fix or ideas of what has gone wrong

Full-screen (spacebar) preview quality testing

[For background story, please read http://forums.adobe.com/thread/1056763 but be warned, it's very l-o-n-g!]
In brief: some people have noted that Bridge full-screen (spacebar) previews (FSPs) don't accurately reflect the sharpness of a photograph. Sometimes this can be explained by individual configuration problems, but it's clear that this is a common issue amongst people using Bridge to assess/score photograph sharpness, without having to build/examine 100% previews for every image.
[It's worth noting that one common reason why FSPs aren't very sharp is because the Bridge advanced preference "Generate Monitor-Size Previews" hasn't been ticked, as this produces a higher resolution image cache. Another cause of very fuzzy previews is random and unexplained, but can usually be solved by restarting Bridge and/or clearing the cache for the selection.]
This discussion concerns the lack of sharpness seen only in FSPs. It can be described as "a subtle but significant loss of detail and sharpness, similar to a slightly out of focus photograph"; imagine a photo with a little bit of blur filter, or a Photoshop PSD at a non-standard zoom setting. This "softening" of the image is caused by Bridge asking the graphics processor to resize the image cache to fit the display. If you select the Bridge advanced preference "Use Software Rendering", you can improve a poor FSP slightly, at the expense of speed, by bypassing the graphics processor.
The test
Visit this web page and download the last image ("2362x3543 pixel, 4.5 Mb") to your computer.
Browse to this image in Bridge, and view it full-screen by pressing Spacebar. Take a screen capture, and save it as a TIFF or PSD.
Adjust your slideshow settings (Ctrl/Cmd-Shift-L), picking "Scaled to Fill", then click on "Play". Save the screen capture, as above.
You now have two screen captures: one FSP, and one cache JPEG reference shot. Examine them side by side at 100%, or layer them in Photoshop and use the hide layer button to flick between images. Pay particular attention to the two left-hand photos, the sharpness check text, and the converging lines.
Make a note of your computer's operating system, graphics processor and driver version, as well as your largest display's pixel dimensions.
Post this information below, together with high quality (10) JPEGs of both screen captures, labelled FSP and REF, and any observations, so we can all see.

OK, it usually takes me a while to let the penny drop, especially when it comes to maths...
I also am busy with the transition of my new Mac pro but with al this here are my results. I include several screenshots but due to upload limit of 2 MB per image in here I downsized the original screenshots a lot, but hopefully it will be clear.
For full screen screenshots I have the asked FSP and REF but also the 100% preview in Bridge with space bar and click. Don't know what your file size is but using EOS 1Dx with 18 MP CR2 files (converted to DNG) it does take me about 1,5 - 2 seconds for both loupe and FSP to build a 100 % preview, and I seem to recall this was not very different behavior on my previous (6 year old) Mac Pro.
You are right (of course... :-) ) regarding the difference between FSP and REF, when studying closely there is a significant detail difference between the FSP and the REF. However, only the 100 % preview matches the original jpeg. The FSP file is on closer look not so good with details but the REF file is only slightly better, both are not correct and therefor the 100 % is still needed.
Here is the FSP screenshot:
and here the REF screenshot:
also the 100 % preview in full screen screenshot:
and finally a composed file with details from original, 100 % REF and FSP:
As said before, at first sight I can't spot significant difference between all options and the full screen (as the preview panel HQ preview) let's me spot the vast majority of unsharpness issues, hence my multiple rounds of sorting and incases of doubt the 100 % option.
So while your theory is correct I'm afraid I (still) doubt the usefulness of this all. If neither the FSP and the REF (although the latter does show a bit better result) can match the results of the original but the 100 % does it well I don't see an easy solution for improvement.
I agree with the quality from the screenshots Curt provided, but Curt also uses the embedded thumbnail instead of HQ preview option. Depending on his needs and hard ware availability it would be nice to see new results with the HQ and monitor sized previews options enabled.
regards
Omke

How to Get Proper Video Screen Captures (Screencasts) of Photoshop and Lightroom in Win?

Hello. I would like to get proper screen captures of Lightroom and Photoshop on Win 7/64, showing all screen elements as you see them. I tried FastStone Capture 8 and SnagIt 11.1, but they have various differing issues. Do you have a good hint?
What's more: In my screen capture, i also want a mouse-click-sound each and every time the mouse is clicked. This is not "system audio", because the computer doesn't play a sound for every ordinary click. The capture software must add that sound. (I'm aware i can add the sound manually in post production, but want it recorded together with video.)
Experience with Faststone Capture 8's video captures:
I get well usable footage
Does optionally record mouse-click-sound for each click, with adjustable volume
Does not properly record some elements of Photoshop or Lightroom screens:
- cursors sometimes look rough or double-sized
- Lightrooms "TAT (Target Correction Tool)" disappears while being dragged on the image
- the color selector box of Lightroom's Adjustment Brush is not shown, while the cursor working within that color selector box is shown
- Lightroom's three-second-splash-message after Undo etc. is not shown
(All these missing elements do show up in *still* captures with Faststone Capture. They also *do* show up in video captures done with SnagIt, see below)
Experience with Snagit 11.1's video captures:
Does properly capture all those elements that FastStone does *not* capture (listed above)
Does *not* optionally include a mouse-click-sound for each and every mouse click (they record "system audio", but a sound on every click is not "system audio", so a regular click on a menu item has no sound)
Videos are less smooth, cursor sometimes "jumping"
Now, do you know a screen capture software for Win 7 that can
properly record *anything* that's seen within Lightroom and Photoshop
and automatically add a mouse-click-sound for each and every click i do
and produce smooth footage without "jumping cursors"?
Thanks for your real-life experiences!

Myles, thanks again, here are my findings with Camtasia:
Camtasia:
DOES record overlays like adjustment brush's colour selector
.camrec format isn't offered for recording, only .trec and .avi (on Win 7), but trec is usable just as .camrec i guess
Exported MP4 looks blurry and has colour blotches, that are not visible in the initial recording, only after exporting; this doesn't change at all after setting very high quality MP4 options; i guess i didn't look properly
i see how to add mouse-click sounds; i don't like the sound they provide so much; maybe it can be exchanged.
Other tests:
Camstudio:
mouse click sounds very weird (my mistake?)
does NOT record LR overlays like adjustment brush's colour selector
Screen-cast-o-matic, optionally online, free version:
DOES record overlays like adjustment brush's colour selector. Mouse-click-sound not in free version. "System audio" is promised in paid version, but that does not necessarily mean a sound for each mouse-click. Contacted support for more
Straightforward using, lots of short video tutorials (useful for absolute beginners).
Free downloaded program 1.4 only works on primary monitor, the online launched app also records on secondary monitor
Don't see option to record a "window", only set resolutions
More "jumpy" than Faststone
More interesting pro-version seems to be rent-only-licenced, at 15 USD per year, not a one-time-buy

Advice on compressing screen capture movies for web ?

Hello everyone,
I just am curious about what is the best way to go for compressing screen captures so that they maintain the best clarity for text. I've gone back and forth between MP4 (improved) and quicktime movies set to h.264... I am just curious what the general opinion here of what is best to use? It seems that MP4 improved produces larger files with less quality... Also it was a little confusing to see that compressor's h264 option is for "apple devices" or "dvd studio pro" and thus doesn't offer streaming as an option as it does with mp4-- so the only way to properly produce h264 files for web is to use the quicktime option and select h264 as it's compression type? Is this correct?
-patrick

What is the frame size of your source clip, and what frame size have you chosen for your output?
Exactly what settings have you tried so far? Please share some details
I would recommend using the Apple > Other Workflows > Web > Download > QuickTime 7 compatible > H.264 LAN as a starting point.
Set a frame size (i.e. 1280x800, 1024x768 or 768x480, if you have a widescreen computer display) and adjust the video bitrate accordingly. The frame size you choose, should be divisible by 16, 8 or 4, for best quality. Have a look at this article for more info on that: http://www.flashsupport.com/books/fvst/files/tools/video_sizes.html
For more info about H.246 and macroblocks, have a look at http://en.wikipedia.org/wiki/H.264
For more details on getting the most out of H.264, have a look at the Apple tutorial Creating Amazing Video Content with H.264.
1. Find the frame size you would like to end up with
2. Adjust the video bitrate accordingly (set the keyframe interval to automatic)
3. Enable Frame Controls in the Inspector window, and set the Resize Filter to Better or Best (gives you much better quality on downscaling, than without frame controls - do a test and see for your self)
An other good tip, is to set an in/out point in the Preview window in Compressor, with a duration of maybe about 10 secs. That way you do not need to encode the whole clip just to test your settings. Add multiple settings, before you submit the batch. When it is done, see which one you think looks the best compared to file size.

Lion, Quicktime Screen-capture, and Photoshop

I've used Quicktime's screen capture tool to create Photoshop video guides in the past and it's produced really high quality, high fps results in a small file. However, since I've upgraded to OS X Lion, my entire computer is brought to its knees during a Photoshop recording session. As soon as I hit record, boom - Photoshop becomes really choppy and it's almost impossible to create a decent video.
Could anyone else here with Lion do a quick test to see if you get the same results? Just open up a Photoshop file, open Quicktime, go to New / New Screen Recording, and see if you're able to use Photoshop without any performance drop.
I'm running CS5 on a dual quad-core mac pro with 12 gigs of ram. It's about 3 years old, but I shouldn't be running into a performance hit like this.
Any feedback on your own experience or tests would be greatly appreciated.
Thanks!

Under OS X "Lion," every screen capture tool I have (Snapz Pro X, Screenflow, Layers, iShowU HD Pro) will no longer capture a DVD frame—if the DVD is being played by Apple's DVD Player. The resulting screen cap shows a "transparent" window. VLC still works in that regard. I've also noticed that the iTunes app no longer has a free-floating video window, which was always my preference. Videos now show within the boundaries of the iTunes window, or full-frame. One more note on Apple DVD Player is that invoking full-frame playback will slide in a new "space" with a background similar to that seen on iPads or behind the Desktop Widgets.
I realize capturing DVDs is not what you're trying to do, but all of the above indicates a complete change to the way OS X handles any streamed video. I have yet to make a test, but I suspect that output-to-NTSC through monitor ports may also be inhibited for certain things; Apple may be plugging the "analog hole" with software. My guess is that whatever background routines are responsible for this may be sufficient to slow the frame rate of your tutorial captures—in the same way that heightened security at airports now significantly slows boarding procedures.

Screen capture function (Shift-Command-3 or 4) doesn't work

When I try to do a screen capture using the built-in utility, I hear the camera-click, but then get an error message saying the capture couldn't be completed because of this error: "unable to create type string". How do I fix this?
Note: I normally use Grab, but find having to convert tiffs to jpg/png annoying; I was hoping to use the built-in screen grab instead.
This problem has been happening for months, through many boots/reboots. I've repaired permissions to no avail. Any ideas?
Thx!

Lyssa is correct try restarting the Mac first, I always assume that users do this to try to fix anomalies.
Creating a new user is fairly easy and non disruptive to the Mac or the way you log in. You can simply delete the user when finished troubleshooting or keep it for later troubleshooting.
To create a new account (just to let you know how to do it).
1. Open Sys/Prefs/Account (yes accounts sorry I was thinking Tiger OS).
2. Click on the Lock at the bottom left of the window.
3. Put in your password (which should be the admin account).
4. Now the + add user button should no longer be greyed out, select the + button.
5. Give the user a name, shortname, and password. Then press Create Account.
6. Select the Keep Automatic Login when prompted.
7. Exit out of Sys/Prefs
Now to log in to the user, go to the blue Apple menu at top left corner of Desktop, Select Log off "User". You'll be prompted with a log in selection screen. Select the newly created user, enter the password then test the Screen shots.
To delete the user.
1. Open Sys/Prefs/Accounts
2. Unlock as you did previously.
3. Select the newly created user then press the - Delete User button.
4. When prompted, select the "Delete the home folder" option then press OK. And your done.
Message was edited by: iyacyas

Robot Class (Screen Capture)

Hello friends,
i have a problem and i don't know if it's a bug or something wrong with my code i just developed this code below to create a screencapture application and i do get the screen capture in the jpeg format but the problem is that i don't see the mouse pointer in the screenshot that i get why don't i see the mouse pointer when i can see everthing else
import java.awt.*;
import java.awt.Image.*;
import javax.imageio.*;
import java.io.*;
public class test{
public static void main(String args[]){
try{
Robot tt=new Robot();
Rectangle screen=new Rectangle(1024,768);
File f1 = new File("/home/hari/java/test.jpg");
javax.imageio.ImageIO.write(tt.createScreenCapture(screen),"jpg",f1);
}catch(Exception e){System.out.println(e);}
I would like u guys to go through this code and check my claims
one more thing u need jdk1.4 for this as iam using java advanced imaging api
Thanks in advance
regards
hari

Hey,
Why did you ask me that question this is a fully functional code tested on linux and windows and works, Except for i don't see the mouse pointer at all as i already mentioned you should have jdk1.4 for this
Please let me know as my running out of patience because of this problem
regards
hari

Screen Capture avi - HELP!!!!!!!!

Hello All.
Please someone out there must know the best answer to my
problem:
I need to create a presentation to be used as a trainning
guide.
I am flexible (to a degree) on how to do this, although the
tools in my bag mean that i have used SnagIt to capture the screen
in an .avi format. this looks great when played no probs.
When I add this avi to a flash file (basic, which has a
control for the film and a frame etc) I can publish this to a swf
file, again all seems well, I can then embedd this into a
powerpoint presentation ok.
This all works ok, except for a blur between screen changes
and new windows, they seem to start blurred and then scharpen up.
My real problem is the Screen Resolution when playing this
presentation back on different P.C's.
As we all know every user has diferent seetings. So how can I
cater for them all????
I read somewhere that it is best to capture the film at the
lowest possible screen res and it will destort going up, although
not as bad as he reverse.
So please can anyone gide me through this???
As I say the video contains lots of test which is simply
unreadable using the process above.
i have played with changing the codec which just made the
film Super Size........
Many thanks in advance
Andrew

So I have been doing some more homework and I took Harm's suggestion to get Camtasia. Thank you for that, I love it. It is quite versatile and looks great(It should for $300). So now I am able to produce a screen captured video that is workable though I am having a couple of issues still. The Dv/NTSC standard of 720x480 PAR .9 is not the easiest to match up. I have output my camtasia video as an AVI, 640x480 with a PAR of 1 and set it to 30fps, I also set my premiere project to 30 fps. The AVI file I created is about 14 gigs as the movie is 9 minutes long. I tried importing it but only the first 2 minutes of the video come into the project which makes no sense to me. I am getting low on Hard Drive Space ~30 gigs left of 320, so maybe there are safeguards in the machine or program which won't let me use the whole file as it would bring me too close to the limit(don't worry, I'm getting a 1TB external drive later today). So now I am pondering my options and again asking for help.
My first question is why would a 9 minute avi cut itself off to 2 minutes when imported into premiere and how can I get it to import properly?
Second question, perhaps I am approaching this the wrong way, is there a better way to make a tutorial video with the screen captured AVi that I now have? I want to do some fancy stuff with AE an PP to make it shine but neither seem very willing to comply. What I'm considering is just producing an intro and ending separately and then importing the finished videos back into Camtasia, even though their transitions are kind of basic, it would work I think.
I am going to be using this alot as I have 12 different lessons to create so if Harm or anyone else wants to offer suggestions on the best way to approach this and/or fix my importing/compatibility issues, I would greatly appreciate it.

Screen Capture won't capture window

Hello, I'm using Snow Leopard on a Mac Mini with a single monitor. When using the screen capture keyboard commands, I can do everything except for capturing a window. I'm supposed to be able to hit command+shift+4, and then spacebar, and the pointer will change into a camera that will capture only the window I click with it. I recall being able to do this a long time ago, before I upgraded to Snow Leopard. I also use a widget called Screenshot Plus that acts as a front-end to those keyboard functions.
When I try these days, the cursor changes into a camera, but the entire screen is highlighted as if it will be selected. When I click, what gets captured is a blank white area the full size of my screen. The Screenshot Pro widget produces the same incorrect result.
I've seen another discussion about this topic, but it seemed to center on the Grab utility. On my system, Grab works correctly, including the window capture function. So I have a way to get the results I want, but I would be interested in a solution that allows me to use the keyboard method again. Thank you.
Mike

Noondaywitch, I created a test account and screen capture of windows worked correctly in it. Thank you!
So now I need to look for something about my account. I'm going to try disabling all startup items and see what happens.
UPDATE: Disabling all startup items and rebooting fixed the problem. The window capture function now works in my user account. Now I can put startup items back one by one to see which one might have caused the issue.
Thanks to all who gave advice.

Automated screen captures in emulator tests

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