Re: An simple class derived from CDialog

From:
David Wilkinson <no-reply@effisols.com>
Newsgroups:
microsoft.public.vc.mfc
Date:
Thu, 07 Feb 2008 16:30:51 -0500
Message-ID:
<#UxY3CdaIHA.5540@TK2MSFTNGP02.phx.gbl>
Erakis wrote:

Hi,

I would like to create a class that derived from CDialog. This class
should only paint RED the background of it dialog. Thereafter I will
derivate all my following dialog from this one. So the code to pain
the dialog will not be redundant.

By the way, what should I put in the CPP and .H of the derivates class
for the relation works well (Message map, inheritage,
BEGIN_MESSAGE_MAP, DoDataExchange, etc..)?

DialogBaseRedBackground.h
?????????????????????????
classe CDialogBaseRedBackground : public CDialog
{
};

DialogBaseRedBackground.cpp
??????????????????????????
{
};

MyDialog.h
??????????????????????????
classe CDialogRedBackground : public CDialogBaseRedBackground
{
};

MyDialog.cpp
??????????????????????????
{
};


Erakis:

The key idea is to give your new base class a constructor like CDialog that can
receive the dialog ID from the derived dialog, and pass it on to CDialog. Your
base dialog does not need its own template ID, and it should have a handler for
just WM_PAINT.

--
David Wilkinson
Visual C++ MVP

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