|
Re
preventing someone copying text from a confidential screen:
The
best I have thought to do so far is clobber the clipboard in a timer every 1/2
second.
procedure TfrmForm1.Timer1Timer(Sender:
TObject);
begin clipboard.SetTextBuf('The clipboard is empty'); end; Question about this - if the clipboard already had a screen
image in it, does putting text in it make the previous bitmap
inaccessable?
I
realise that for a techo user there are always ways to capture
information with special programs, I am just trying to cater for usual methods
with typical users who would use the clipboard.
I
guess I could require the user to close all other programs, which would
eliminate other monitoring programs, but I am not sure how to check between task
bar programs (which they would be happy to close) and those in the system tray
(such as virus checkers which they may not want to).
John B |
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