Re: CTRL + Z event handler

From:

"AliR $VC++ MVP$" <AliR@online.nospam>

Newsgroups:

microsoft.public.vc.mfc

Date:

Tue, 22 Apr 2008 21:36:52 GMT

Message-ID:

<UTsPj.60$506.45@newssvr27.news.prodigy.net>

The correct approach to doing something custom with Ctrl+Z is to use a
Accelerator table.

Then you define a handler function for the accelerator that gets called with
Ctrl+Z and do your functionality there.

For example in example of CRichEditCtrl in a CView. Instead of removing the
Ctrl+Z accelerator from the table, you could have left it there, setup a
handler for that accelerator in your CView dervied class, and in the message
handler method called the edit controls Undo method.

BEGIN_MESSAGE_MAP(...)
ON_COMMAND(ID_CTRLZ,OnCtrlZ)
END_MESSAGE_MAP()

void CMyView::OnCtrlZ()
{
m_Edit.Undo();
}

AliR.

"foobar" <somefoobar@gmail.com> wrote in message
news:5a97a38c-cb57-4bbb-b93a-7a10b83e7374@p25g2000hsf.googlegroups.com...

Thank you! Removing ACCELERATOR key map in resource file fixed the
behavior.

Does it mean that to undo at CView (parent of CRichEditCtrl) level I
need to handle WM_CHAR message and switch on nChar to find key
combination? I could not think of any other approach, are there any
other approaches to handle CTRL + Z command?

Thank you again.

On Apr 22, 8:09 pm, Joseph M. Newcomer <newco...@flounder.com> wrote:

First, make sure you don't have a Ctrl-Z shortcut in your ACCELERATOR
resource. If you
have it, remove it.

Normally, rich edit already has undo support, so once the Ctrl+Z can get
to it, the undo
should work.
joe

On Mon, 21 Apr 2008 23:42:57 -0700 (PDT), somefoo...@gmail.com wrote:

Hi, I have a CRichEditCtrl window as a child window of CView class in
an MDI type application. I am trying to put undo support for text
editing but the CTRL + Z event is getting caught by the CView class
only. In CView class CTRL + Z event is handled by handling
ID_EDIT_UNDO command.

Can someone point out what I need to do to get the CTRL + Z event in
CRichEditCtrl? I tried to use message reflection but I am not sure if
I used it correctly.

Any help is appreicated.
Thanks.

Joseph M. Newcomer [MVP]
email: newco...@flounder.com
Web:http://www.flounder.com
MVP Tips:http://www.flounder.com/mvp_tips.htm