Re: WTL dialog can't handle WM_KEYDOWN message?

From:

"Igor Tandetnik" <itandetnik@mvps.org>

Newsgroups:

microsoft.public.vc.atl

Date:

Tue, 27 Jun 2006 11:01:06 -0400

Message-ID:

<ecuwEqfmGHA.4700@TK2MSFTNGP03.phx.gbl>

Jeffrey Lee <bigtree21cn@21cn.com> wrote:

I have a dialog class inherited from CDialogImpl.
It can't respond WM_KEYKOWN message(I set a breakpoint in OnKeyDown).

Keyboard messages go to the window having focus. In a dialog, most of
the time one of the controls has focus, so that's where your keystrokes
go.

The easiest way to intercept keystrokes in a dialog is to install a
keyboard hook - see SetWindowsHookEx.

But If this dialog class inherited from CWindowImpl, It can respond
WM_KEYDOWN message.

If it's derived from CWindowImpl, it's not a dialog anymore. Does it
have child windows? If so, click on one of them, and you would see that
you are no longer getting WM_KEYDOWN messages in the main window (since
the child now has focus).
--
With best wishes,
Igor Tandetnik

With sufficient thrust, pigs fly just fine. However, this is not
necessarily a good idea. It is hard to be sure where they are going to
land, and it could be dangerous sitting under them as they fly
overhead. -- RFC 1925