Solved

Disable copying, cutting and pasting in my richedit

Posted on 2007-03-21
3
256 Views
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
0
Comment
Question by:hidrau
  • 2
3 Comments
 
LVL 21

Accepted Solution

by:
ziolko earned 500 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

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
mapAB Challlenge 35 128
How to define IfThen functions in one common unit? 4 45
Moving (cutting/pasting) controls in a TTabbedNotebook... 7 27
Problem to picture file 20 35
How to remove superseded packages in windows w60 or w61 installation media (.wim) or online system to prevent unnecessary space. w60 means Windows Vista or Windows Server 2008. w61 means Windows 7 or Windows Server 2008 R2. There are various …
The purpose of this article is to demonstrate how we can use conditional statements using Python.
This tutorial explains how to use the VisualVM tool for the Java platform application. This video goes into detail on the Threads, Sampler, and Profiler tabs.
The goal of the video will be to teach the user the difference and consequence of passing data by value vs passing data by reference in C++. An example of passing data by value as well as an example of passing data by reference will be be given. Bot…

863 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

23 Experts available now in Live!

Get 1:1 Help Now