Re: How to force uppercase in a CListCtrl

From:

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

Newsgroups:

microsoft.public.vc.mfc

Date:

Mon, 24 Mar 2008 15:06:13 -0500

Message-ID:

<AVTFj.10337$qS5.458@nlpi069.nbdc.sbc.com>

That's fine. I just wanted to post the solution in case someone else needs
a solution to this problem.

When it comes to simplicity, they are both two lines of code! Your if
statement will get evaluated something like a 1000 times a second as the
mouse moves around the list control (as the PreTranslateMessage gets called
for every message that gets sent to the list control). Where the
LVN_BEGINLABELEDIT message will only get sent when the label is about to be
edited. Therefore I don't think the argument that one is simpler than the
other is valid.

AliR.

"Matt Jacobi" <MattJacobi@discussions.microsoft.com> wrote in message
news:D69E60B9-16C5-4AC9-9F04-36C438F9D049@microsoft.com...

Thanks for the information AliR. The code you posted is somewhat similar
to
where I was at at one point along the way, but I simplified it down
because
this is a very simple implementation with two columns: one fixed, one
editable. As far as this grid is concerned, I don't ever see there being
multiple editable columns. However, this is def good knowledge to have for
the future in case a similar situation ever arises. Thanks again for the
help.

-- Matt

"AliR (VC++ MVP)" wrote:

Like Tom pointed out the solution that you have posted will make
everything
typed upper case, and might be ok in your case.

The correct solution is to catch the LVN_BEGINLABELEDIT message of the
list
control and change the style of the edit control.

class CMyListCtrl : public CListCtrl
{
DECLARE_DYNAMIC(CMyListCtrl)

public:
CMyListCtrl() {}
virtual ~CMyListCtrl() {}

protected:
afx_msg void OnLvnBeginlabeledit(NMHDR *pNMHDR, LRESULT *pResult);
DECLARE_MESSAGE_MAP()
};

// CMyListCtrl

IMPLEMENT_DYNAMIC(CMyListCtrl, CListCtrl)

BEGIN_MESSAGE_MAP(CMyListCtrl, CListCtrl)
ON_NOTIFY_REFLECT(LVN_BEGINLABELEDIT, &CMyListCtrl::OnLvnBeginlabeledit)
END_MESSAGE_MAP()

void CMyListCtrl::OnLvnBeginlabeledit(NMHDR *pNMHDR, LRESULT *pResult)
{
NMLVDISPINFO *pDispInfo = reinterpret_cast<NMLVDISPINFO*>(pNMHDR);

CEdit *pEdit = GetEditControl();
ASSERT(pEdit);
pEdit->ModifyStyle(0,ES_UPPERCASE);

*pResult = 0;
}

That way you can control this if they are editing a different column or
item
that does not need to be all upper case.

AliR.

"Tom Serface" <tom.nospam@camaswood.com> wrote in message
news:uvcJHfdjIHA.4396@TK2MSFTNGP04.phx.gbl...

That's great that you got it working. This is going to make
everything
uppercase. Is that what you wanted? If so, good stuff! Thanks for
posting the final solution. It's always interesting to have threads
completed.

Tom

"Matt Jacobi" <MattJacobi@discussions.microsoft.com> wrote in message
news:E0A67451-D88F-4E82-90E1-FF561B012720@microsoft.com...

Tom,

Thanks for your help. By looking at the source code of the edit
control
you
pointed me to, plus some further Googling based on what I saw there, I
was
able to come up with a solution. All I had to do was override one
function in
my class.

Here is what I came up with:

BOOL SerialNumberList::PreTranslateMessage(MSG* pMsg) {
   if (pMsg->message == WM_CHAR) {
       pMsg->wParam = toupper(pMsg->wParam);
   }
   return CListCtrl::PreTranslateMessage(pMsg);
}

Thanks again for your help!
-- Matt