Re: [WTL]Handling VK_RETURN in an edit control

From:
"Igor Tandetnik" <itandetnik@mvps.org>
Newsgroups:
microsoft.public.vc.atl
Date:
Thu, 14 Feb 2008 09:09:50 -0500
Message-ID:
<#IX1FNxbIHA.3932@TK2MSFTNGP05.phx.gbl>
<vlad.jun.dev@gmail.com> wrote in message
news:d6eae8d1-4f7e-475d-8f47-2c1471926a05@n19g2000hsd.googlegroups.com

Igor Tandetnik:

Define "experience difficulties". What exactly seems to be the
problem?

In the following code the OnCreate function is never called


How is the instance of CEditEx created? How is it associated with an
actual window handle?

LRESULT CEditEx::OnCreate(LPCREATESTRUCT)
{
m_OldEditWndProc = (WNDPROC)SetWindowLong(GWL_WNDPROC,
(DWORD)NewMsgProc);

return 0;
}


This makes no sense. OnCreate is a message handler for WM_CREATE
message. For it to be called, your window procedure must already be
installed for the window handle. But you try to install it yet again.

See CWindowImpl::SubclassWindow
--
With best wishes,
    Igor Tandetnik

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