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From: BTIS Jeff <btisjb@gmail.com>
Newsgroups: comp.lang.basic.visual.misc
Subject: Re: RichEdit control question
Date: Tue, 11 Oct 2011 08:17:13 -0700 (PDT)
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On Monday, October 10, 2011 5:41:43 PM UTC-4, Kalkidas wrote:
> I need to have a RichTextBox be able to toggle Hidden text off and on. 
> MSWORD does this by pressing shift+ctrl+*.
> 
> Obviously I'll have to use unmanaged code and the RichEdit control. 
> Anyone know how to do this?
> 
> I'm using VB 2010 and Win7.

I may be mistaken ( please correct me if I am ) but I don't think that the Microsoft RichTextbox supports toggling visibility of  hidden Text.
If not you may want to look at our ALLText component.
With ALLText you can write
       ' Set up content including some hidden text
           ALLText.FText  = "This is \v1 hidden \v0 text"
       ' Don't show the text marked as hidden
            atx451.ShowHidden = false
       ' Show all the txt - including the text marked as hidden
            atx451.ShowHidden = true

Obviously you can use this code to toggle the visibility 
in a button click or in response to the keyboard ( by trapping KeyDown events)

Note that ALLText is an OCX/ ActiveX component  ( not .NET ) but it is supported in VB 2010 applications .

For further details see
   www.bennet-tec.com/btproducts/ALLText
or for questions, you can post to 
http://www.bennet-tec.com/scripts/ttcgi.exe?command=SoloSubmitScreen&databaseid=2

* Please include a copy of this message with any reply
     Jeff  
      Bennet-Tec Information Systems