alice-teacher SceenShots and Mac

Jack Chen jack at cjc.org
Tue Oct 18 11:51:14 EDT 2011


Hi Rikki,

If you can't get Alice to take a screen shot then I suppose that you can 
use pause the animation and use the MacOSX shortcut for taking a screenshot:

http://docs.info.apple.com/article.html?artnum=61544

All the best!
Jack Chen



On 10/17/2011 3:56 PM, Rikki Fletcher wrote:
> My Mac student tells me she cannot get "take picture" to work.  Seems fine
> in Windows.  Is there an issue?  She downloaded the latest version of
> Alice.  Here's the beginning of the error:
> Error while storing screen capture.
> Alice version: 2.2 08/05/2011
> Throwable that caused the error:
> java.lang.NullPointerException
> at edu.cmu.cs.stage3.image.ImageUtilities.getWidth(ImageUtilities.java:43)
> at edu.cmu.cs.stage3.image.ImageIO.store(ImageIO.java:106)
> at edu.cmu.cs.stage3.image.ImageIO.store(ImageIO.java:103)
> at
> edu.cmu.cs.stage3.alice.authoringtool.AuthoringTool.storeCapturedImage(AuthoringTool.java:28
>
>
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