forum.vdsworld.com

[Serge]

hi pgware,

would you be able to add to richedit the ability to not have the text it contains to be selected by mouse control or keyboard shortcuts? i need for the information in the richedit element not to be able to be copied (for copyright reasons)...does that make sense? the currend readonly option means that users can't edit the text in the richedit element but they can still select it and copy it to the clipboard...this i need to stop

also, could you make it so that it supports subscripts and superscripts?

thanks in advance

serge

[Skit3000]

There should be a API call for it. I'll check it out in a few minutes...

Edit: Maybe you should look at this topic:
http://forum.vdsworld.com/viewtopic.php?t=1825

To get the identifier for the element, put a ~ in front of the element name.

[PGWARE]

vdsobj update: DOWNLOAD HERE


Serge I added the subscript and superscript styles in now. Also the function GETFORMAT has new values of P and E which return if subscript and superscript are on/off for any text selected.

As to your question about disabling copying, the best solution I could come up with is doing this:

First set the richedit object on creation with two styles:
READONLY, CHANGE

Then add the event label :RICHEDIT1ONCHANGE and put this code below it:
OBJECT FORMAT,RICHEDIT1,CLIPBOARD,SELECT,0,0


That code will keep putting the cursor position back to position 0,0 anytime the richedit's text area is clicked on and wont allow any selection/copying.

[Tommy]

Please remember that tools, such as Window Spy, probably still will be able to obtain
the richedit's contents.

[CodeScript]

True but one can probably give atleast a basic protecton by preventing running them when your app is running. I don't know if am permitted to discuss the details of it but U can do it(simple). But still a small flaw that the person can use a script designed in vds itself which is difficult to detect.
But I think should still gives a fair degree of protection unless your users are programmers.
If you have a limited content which should not be copied put it as a graphic and include it as a resource.
Edit:

One more idea If you are on VDS 5 assiign Ctrl+C to a hotkey and send to a fake label which esends it back to your EVLOOP so your key press(ctrl+C) is trapped.
You may add remove hotkey on minimse and add it on restore or (advanced - detect if the window is not foreground - enable if foreground disable the fake hotkey - use API for detecting window z order) - this makes your app a good window citizen and not disable copy in other apps.
You might also "empty clipboard" i.e clipboard clear at the hotkey label for Ctrl+C.

Sorry for the long unorganised reply.
Hope it helps a little

Regards

[Serge]

thanks pgware for the update and for your idea...i will check it out...another possible way would be to use :TIMER and to continually clear the clipboard...but i thought that there might be an easier way

thanks tommy and codescript for your thoughts too...i am not using vds 5 otherwise your shortcut idea would be good

serge

[FreezingFire]

[Serge]

thanks for all your ideas guys...pgware, your idea works great...as does the subscript and superscript...thanks for the update

serge