Re: MFC and User Defined objects

From:

"Scott McPhillips [MVP]" <org-dot-mvps-at-scottmcp>

Newsgroups:

microsoft.public.vc.mfc

Date:

Thu, 15 Mar 2007 16:12:42 -0400

Message-ID:

<#r$JD6zZHHA.2436@TK2MSFTNGP06.phx.gbl>

one-trick-pony wrote:

Hello,

The DoModal function runs in MFC generated class CDummyApp in
InitInstance().

BOOL CDummyDlg::OnInitDialog()
{
...
How do I get window handle here? What function and coding will allow
me to get the window handle?

HWND hDummy = m_hWnd;

m_hWnd is a member variable of CWnd. CDummyDlg is a CWnd, so it
inherits the m_hWnd.

PostMessage(UWM_AutoRun);
...
return TRUE;
}

CWnd *p_UIWnd = what? How can I get handle of the window using CWnd*?

I know below line of code is inaccurate because I got error during
compile.

CWnd *p_UIWnd = CDummyDlg.m_hWnd;

or in HWND case (which works):

HwND hDummy = CDummyDlg::m_hWnd;

These are both bad C++. The second one works because the "CDummyDlg::"
is redundant -- unneeded.

This works too:
HWND hDmmy = AfxGetMainWnd()->m_hWnd;

I am interested in knowing how to use CWnd type object. Thanks for
help.

It is very confusing to try and learn C++ and MFC and Windows
programming all at the same time. Doing more C++ exercises from a C++
book would probably help you a lot.

--
Scott McPhillips [VC++ MVP]