This thread is for discussions of RichTextBox Control.

After using this code the undo level is still 1.

Can someone help me out ?

Thank you !

i expirienced the same thing... does anyone have a working example on this?

What o/s are you running? on Windows 2000/XP, the richtext box has been "upgraded" to include multiple undo/redo.. otherwise, you'll probably be left with the old single undo/redo..

but still  can only undo level 1,why?can u tell me?thank you very much.

VB.net has introduced a number of changes to the way you access the RichTextBox's properties. SelUnderline, SelBold, SelStrikethrough etc are now available in the

richTextBox1.SelectionFont

property. For example, in VB.net, use

richTextBox1.SelectionFont.Underline

instead of

richTextBox1.SelUnderline

I will try to update the tutorial to be .net compliant in the next month or so.

Hi,

Can u please tell me, how to do this in VB.NET or C#. I need it urgently.

Thanx
Ashok

RichTextBOx1.SelectionFont.Bold
RichTextBOx1.SelectionFont.Underline etc are readonly

How to set the formating for the selected text???

How do you autodetect URL's in VB? Not .net!

Is it possible to highlight a word in a "rich text box" and add a link to that word?

For example in Microsoft Word you can highlight a word, click "insert" on the tool bar, select Hyperlink and add an url address to that word. This word can then be clicked on to go to that web page.

Is this possible in RTB?

Thanks
Chris
cgroves@lycos.co.uk

I believe the problem for VB'ers is that the RichText control is from richtx32.ocx, which is based on riched32.dll.  As per Microsoft ( http://msdn.microsoft.com/library/en-us/shellcc/platform/commctls/richedit/richeditcontrols/aboutricheditcontrols.asp ) this library only supports one level of undo.  Later versions of riched (riched20.dll, etc.) allow for multiple levels, but I have found no Microsoft ocx that uses this library.

Bottom line, not going to happen using ONLY Richtext control, even with the correct messages sent to it.

As a side note, I found a few logic errors in above code...

1)
  Public Property Get CanCopy() As Boolean
      If rtb1.SelLength < 0 Then
         CanCopy = True
      End If
  End Property

Should read as

  Public Property Get CanCopy() As Boolean
     If rtb1.SelLength > 0 Then
        CanCopy = True
     End If
  End Property

2)  
With richtx32.ocx, the above code will display the undo all the time.  This is confusing during runtime.  Really we only want it to show if there is no redo.  This requires one of any number of possible revisions.  Generate your favorite.

I believe the problem for VB'ers is that the RichText control is from richtx32.ocx, which is based on riched32.dll.  As per Microsoft ( http://msdn.microsoft.com/library/en-us/shellcc/platform/commctls/richedit/richeditcontrols/aboutricheditcontrols.asp ) this library only supports one level of undo.  Later versions of riched (riched20.dll, etc.) allow for multiple levels, but I have found no Microsoft ocx that uses this library.

Bottom line, not going to happen using ONLY Richtext control, even with the correct messages sent to it.

As a side note, I found a few logic errors in above code...

1)
  Public Property Get CanCopy() As Boolean
      If rtb1.SelLength < 0 Then
         CanCopy = True
      End If
  End Property

Should read as

  Public Property Get CanCopy() As Boolean
     If rtb1.SelLength > 0 Then
        CanCopy = True
     End If
  End Property

2)  
With richtx32.ocx, the above code will display the undo all the time.  This is confusing during runtime.  Really we only want it to show if there is no redo.  This requires one of any number of possible revisions.  Generate your favorite.

how can  inert image into richtextbox ?

I'm using VB6 - sp5 - -
This code absolutely does not work with my system..... I've been told that it's because the RichTextBox that comes with VB is an older version of the dll -----

Can I get it to work by replacing the RichEd dll?
If so, where can I get it?

I am writing code for a connection routine and am using a rich text box to display the responses from the server.  However as the text is added the user is constantly haveing to manually scroll the window to see the new text.  I would like the program to automaically scroll the window for the user.  Any help on this would be appreciated.  thanks