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Creating keyboard filters using Silverlight

Posted on 2011-02-21
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Last Modified: 2012-05-11
When I run a Silverlight app. out of browser on the Windows platform, I'd like to create a keyboard filter than allows me to test for the PrtScrn key and override it.  Can this be done from Silverlight?

Curious.

newbieweb
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Question by:newbieweb
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5 Comments
 
LVL 16

Assisted Solution

by:Kalpesh Chhatrala
Kalpesh Chhatrala earned 500 total points
ID: 34948735
Here is a reasonably good approach to image leeching:

http://www.uberasp.net/getarticle.aspx?id=13
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Author Comment

by:newbieweb
ID: 34948753
Thanks. Any idea if I can create a keyboard filter to capture the PrtScrn key press? Or is there a way to ask Windows to disable that while my web p[age is showing?
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LVL 16

Accepted Solution

by:
Kalpesh Chhatrala earned 500 total points
ID: 34948818
you can add timer on your main page.

check every tick (like 500 ms) if window is active then clean your clipboard
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Author Comment

by:newbieweb
ID: 34952666
Is there no way from Silverlight to inspect the key strokes? Or is it that the browser doesn ot have that capability?

Can't a web page run an ActgiveX control? And can't that filter key strokes?

It doesn't seem like it should be that hard.  The clean the clipboard method also seems like it should work but I would rather not mess with the data the user has in the clipboard if possible.
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Author Closing Comment

by:newbieweb
ID: 34979699
Thanks.
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