how create CWnd and use it in Qt

[litterflybug]

Hi: every one
i'm want use crystal report in qt,i find Qt/MFC Migration Framework ,and test example.
i proble is
i have a wrap class from crystal report control,this is deriver from CWnd
how can i complie it with Qt Application.

//////////////////////////
//h
#ifndef CRVIEWER1_H
#define CRVIEWER1_H
 
#include "stdafx.h"
 
class CCrviewer1 : public CWnd
{
protected:
	DECLARE_DYNCREATE(CCrviewer1)
public:
	............
//
 
};
#endif
////////////////////////////////////////
//cpp
 
//#include "stdafx.h"
#include "crviewer1.h"
 
/////////////////////////////////////////////////////////////////////////////
// CCrviewer1
 
IMPLEMENT_DYNCREATE(CCrviewer1, CWnd)
 
///////////////////////////////////////////////////////
//MyCtrl.h
#ifndef MYCTRL_H
#define MYCTRL_H
#import "C:\\Program Files\\Common Files\\Crystal Decisions\\2.0\\bin\\craxddrt9.dll" no_namespace
#include "crviewer1.h"
#include <qwinhost.h>
#include <QtGui>
 
class HostWindow : public QWinHost
{
    Q_OBJECT
public:
    HostWindow(QWidget *parent = 0, Qt::WFlags f = 0)
	: QWinHost(parent, f)
    {
        setFocusPolicy(Qt::StrongFocus);
    }
 
    HWND createWindow(HWND parent, HINSTANCE instance)
    {
	  [SIZE="6"] //how can i create CCrviewer1???[/SIZE]
        return 0;
    }
 
signals:
    void message(const QString &msg, int timeout);
 
public slots:
    void returnPressed()
    {
        QMessageBox::information(topLevelWidget(), "Message from Qt", "Return pressed in QLineEdit!");
    }
public:
     CCrviewer1* m_pCRViewer1;
    IApplicationPtr m_Application;
     IReportPtr m_Report;
 
protected:
 
};
#endif

//////////////////////////
//h
#ifndef CRVIEWER1_H
#define CRVIEWER1_H

#include "stdafx.h"

class CCrviewer1 : public CWnd
{
protected:
	DECLARE_DYNCREATE(CCrviewer1)
public:
	............
//

};
#endif
////////////////////////////////////////
//cpp

//#include "stdafx.h"
#include "crviewer1.h"

/////////////////////////////////////////////////////////////////////////////
// CCrviewer1

IMPLEMENT_DYNCREATE(CCrviewer1, CWnd)

///////////////////////////////////////////////////////
//MyCtrl.h
#ifndef MYCTRL_H
#define MYCTRL_H
#import "C:\\Program Files\\Common Files\\Crystal Decisions\\2.0\\bin\\craxddrt9.dll" no_namespace
#include "crviewer1.h"
#include <qwinhost.h>
#include <QtGui>

class HostWindow : public QWinHost
{
    Q_OBJECT
public:
    HostWindow(QWidget *parent = 0, Qt::WFlags f = 0)
	: QWinHost(parent, f)
    {
        setFocusPolicy(Qt::StrongFocus);
    }

    HWND createWindow(HWND parent, HINSTANCE instance)
    {
	  [SIZE="6"] //how can i create CCrviewer1???[/SIZE]
        return 0;
    }

signals:
    void message(const QString &msg, int timeout);

public slots:
    void returnPressed()
    {
        QMessageBox::information(topLevelWidget(), "Message from Qt", "Return pressed in QLineEdit!");
    }
public:
     CCrviewer1* m_pCRViewer1;
    IApplicationPtr m_Application;
     IReportPtr m_Report;

protected:

};
#endif

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then i compile the application,i get this info
c:\Program Files\Microsoft Visual Studio 9.0\VC\atlmfc\include\afxv_w32.h(16) : fatal error C1189: #error : WINDOWS.H already included. MFC apps must not #include <windows.h>

i adjest include head sequece ,the complie is ok ,but i get some warning
1>LINK : warning LNK4098: default libraries “mfc90d.lib” conflicts with other libraries；please use /NODEFAULTLIB:library
1>LINK : warning LNK4098: default libraries “mfc90d.lib” conflicts with other libraries；please use /NODEFAULTLIB:library

this i run the program, but the main entry is to AfxWinMain, is not my Qt Application
main()!!



i want to know how can i use CWnd in Qt

thanks every much!