Simple CFileDialog Question

I have a stupid question, here it goes:

     I am calling a CFileDialog dialog from another dialog, wanting it to let the user pick a file to open.  I am getting an error about the *pParentWnd arg.

     Here is roughly what I am doing:

     CFileDialog opendlg(1,NULL,NULL,0,NULL,NULL,this);
     didtheyfindone=opendlg.DoModal();

     But VC coughs up a lung on the keyword "this", saying it can't convert a const * CMyApp to CWnd *.

     What am I doing wrong?

     P.S.  A short fragment that had the right idea would help. :)

     Greg
Greg AustinAsked:
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gaohongCommented:
Hi:

 The message is pretty clear. You are doing it from your
 CMyApp class, while the call needs a CWnd pointer.

 You need CWnd pointer in the place of this, possibly
 GetMainWindow() will do or simply give NULL.

 Hope this helps

 gaohong Xie

 CFileDialog opendlg(1,NULL,NULL,0,NULL,NULL, NULL);
                    didtheyfindone=opendlg.DoModal();

                    But VC coughs up a lung on the keyword "this", saying it
                can't convert a const * CMyApp to CWnd *.
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