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Disable copying, cutting and pasting in my richedit

Posted on 2007-03-21
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Last Modified: 2010-04-05
Hi,

I got some code from EE to disable cutting, copying and pasting in my richedit, but the code
has a problem when caps lock was off, I made some change but it didn't work. I need a help.

Thanks

      if (ssCtrl in Shift) and ((key = Ord('V')) or (key = Ord('C')) or (key = Ord('X')) or
      (key = Ord('v')) or (key = Ord('c')) or (key = Ord('x'))) then
        if Clipboard.HasFormat(CF_TEXT) then begin
          ClipBoard.Clear;
          key := 0;
        end;

The code came from this page
http://www.experts-exchange.com/Programming/Languages/Pascal/Delphi/Q_10070659.html?sfQueryTermInfo=1+copi+disabl+past
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Question by:hidrau
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3 Comments
 
LVL 21

Accepted Solution

by:
ziolko earned 2000 total points
ID: 18764897
this works for me with capslock both on and off

procedure TForm1.RichEdit1KeyDown(Sender: TObject; var Key: Word; Shift:
    TShiftState);
const FORBIDEN_KEYS = [Ord('c'), Ord('C'), Ord('v'), Ord('V'), Ord('x'), Ord('X')];
begin
  if (ssCtrl in Shift) and (Key in FORBIDEN_KEYS) then begin
   Clipboard.Clear;
  end;
end;

ziolko.
0
 
LVL 1

Author Comment

by:hidrau
ID: 18765471
are you sure of that?

Because I tested with a line in my richedit and I could copy and past it in the edit1.text.

0
 
LVL 1

Author Comment

by:hidrau
ID: 18765521
OK, puttin this line inside, it worked fine

  if (ssCtrl in Shift) and (Key in FORBIDEN_KEYS) then
   begin
     key:=0; --- here
     Clipboard.clear;
  end;
0

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