[Javascript] locking contents

[Paul Novitski]

Bekim Bacaj:  After pressing the Print Screen key, the screen image is held 
in the clipboard.  Open a new file in Paint or Photoshop or Word or another 
program capable of holding graphic content and paste.

I'm not sure your dialog box idea would help.  The text for the dialog must 
come from somewhere, and I think I'd find it in either the source for the 
page I'm on or in a linked Javascript file that I can download simply by 
entering its URL into my browser's address bar.

Sebastian:  Presenting material on a computer screen that you don't want 
anyone to be able to copy is almost a metaphysical conundrum.  If you 
display text or an image or play a voice so that a human can perceive it, 
it can be necessarily be copied - if by nothing else than by an external 
recorder such as human memory, camera, pencil and paper, or audio recorder.

Perhaps what you need is another approach to your security issue, such as a 
randomly-selected list of questions from a much larger pool, so that if 
copying does occur it doesn't break the system.

Paul


At 08:48 AM 1/16/2004, BEKIM BACAJ wrote:

>Has anybody ever used web-page dialog for this matter?
>I think it will do good protection to the material you wish
>to be wiewed only. And sorry, where can I find the copies I've done with
>print screen cmnd while working on windows env?
>
>>From: "Tim Makins" <spindrift at oceanfree.net>
>>Reply-To: "[JavaScript List]" <javascript at LaTech.edu>
>>To: "[JavaScript List]" <javascript at LaTech.edu>
>>Subject: Re: [Javascript] locking contents
>>Date: Fri, 16 Jan 2004 15:22:38 -0000
>>
>>Have you looked into using pdf files ? I think they can be locked in
>>different ways.
>>
>>Tim in Ireland.
>>
>>----- Original Message -----
>>From: "sebastian" <sebastian.lahajnar at pris-inz.si>
>>To: "[JavaScript List]" <javascript at LaTech.edu>
>>Sent: Friday, January 16, 2004 2:17 PM
>>Subject: RE: [Javascript] locking contents
>>
>> > >I have to prevent that users who browse my HTML pages can do:
>> > >- select and copy the contents
>> > >- print the contents
>> > >- save the html page
>> > >- edit source
>> > >
>> > >Bassically they can only view the contents.
>> > >Is anything od this possible?
>> > >The content of a page is a set of exam questions that should't be copied,
>> > >printed ecc. I know that there's always printscreen...
>> > >
>> > >Thanks.
>> > >
>> > >Sebastian
>>
>>
>>
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