This method only prevents right click...
You can still use the Print Screen key...
I'm sure there is a javascript utility though that constantly sets the
clipboard with garbage so that any print screens are overwritten
instantly.
This still doesn't stop documents or movies although a combination of
all these techniques could be deployed to make it very hard but not
impossible.
Regards,
John Smith BEng, PgDip E-Commerce
Learning Materials Developer (NMCH)
Room A309, Govan Mbeki Building
School of Nursing, Midwifery & Community Health
Glasgow Caledonian University
Cowcaddens Road
Glasgow, G4 0BA
Tel: +44 (0)141 331 3989
Fax: +44 (0)141 331 8312
-----Original Message-----
From: Blackboard/Courseinfo userslist
[mailto:[log in to unmask]] On Behalf Of Richard Glover
Sent: 28 February 2008 09:30
To: [log in to unmask]
Subject: Re: files that can't be downloaded?
There is a program for Windows called Image Guardian, it basically
splits a
given image up into small tiles (of whatever size you choose), gives
them
all random names, generates some HTML to display them and disables hot
linking to your image. It also encrypts the HTML, not sure which method
it
uses though.
So the end user sees the whole image, but it is split up into tiles, say
90
of them. To save the image they would have to save each one and arrange
them
manually.
I know it's not perfect but it's a step towards the goal.
Rich
-----Original Message-----
From: Blackboard/Courseinfo userslist
[mailto:[log in to unmask]] On Behalf Of Peter Rayment
Sent: 28 February 2008 09:17
To: [log in to unmask]
Subject: Re: files that can't be downloaded?
You could always put Javascript in the page to disable right click
although
this only does this and there are ways around this.
Peter
Neil Penry
<[log in to unmask]
C.UK>
To
Sent by:
[log in to unmask]
Blackboard/Course
cc
info userslist
<BLACKBOARD-USERG
Subject
[log in to unmask] files that can't be downloaded?
UK>
27/02/08 16:53
Please respond to
Blackboard/Course
info userslist
<BLACKBOARD-USERG
[log in to unmask]
UK>
Hi all,
Does anyone know of a way of putting a file on Blackboard so that the
student cannot right-click and download it. Files are mainly text and
image
based but could be video. I am concerned about the Human Tissue act and
putting up documents which could include images that need to be
protected
under the terms of the HT act. Our medical staff aren't happy
'publishing'
files that could be downloaded to students' PCs even if they are within
a
Blackboard course/module and only available to genuine medical students.
Neil
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Neil Penry
Learning & Teaching Manager
Information Services
Cardiff University
02920 875127
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