I am going to make SDI base application in MFC, which has a button for "New
Window", will show new window with different view.

How I can solve this problem? Main window view class inherited with
CListView, and New Window view class inherited with CFormView.

------------: Following windows are registered :------------

CSingleDocTemplate * pDocTemplate;

    pDocTemplate = new CSingleDocTemplate(

    IDR_MAINFRAME,

    RUNTIME_CLASS(COtengoDoc),

    RUNTIME_CLASS(CMainFrame),

    RUNTIME_CLASS(COtengoView)); //Base Class of COtengoView is CListView

    if (!pDocTemplate)

         return FALSE;

    AddDocTemplate(pDocTemplate); //Registered Main Window

pDocTemplate = new CSingleDocTemplate(

    IDR_MAINFRAME1,

    RUNTIME_CLASS(CNewMsgDoc),

    RUNTIME_CLASS(CNewMsgFrm),

    RUNTIME_CLASS(CNewMsgView)); //Base Class of CNewMsgView is CFormView

    if (!pDocTemplate)

         return FALSE;

    AddDocTemplate(pDocTemplate);

------------: For New Window code :------------

CSingleDocTemplate * m_pDocTemplate;

m_pDocTemplate = new CSingleDocTemplate(

IDR_MAINFRAME1,

RUNTIME_CLASS(CNewMsgDoc),

RUNTIME_CLASS(CNewMsgFrm),

RUNTIME_CLASS(CNewMsgView));

CDocument * pDoc = NULL;

CFrameWnd * pFrame = NULL;

pDoc = m_pDocTemplate->CreateNewDocument( );

if( pDoc != NULL )

{

    pFrame = m_pDocTemplate->CreateNewFrame( pDoc, pFrame ); // <--
Exception comes

    if( pFrame != NULL )

    {

         m_pDocTemplate->SetDefaultTitle( pDoc );

         if( ! pDoc->OnNewDocument( ) )

         {

             pFrame->DestroyWindow( );

             pFrame = NULL;

         }

         else

         {

             m_pDocTemplate->InitialUpdateFrame( pFrame, pDoc, TRUE );

         }

    }

}

if( pFrame == NULL || pDoc == NULL )

{

    delete pDoc;

    AfxMessageBox( AFX_IDP_FAILED_TO_CREATE_DOC );

}

in this code, when "pFrame = m_pDocTemplate->CreateNewFrame( pDoc,
pFrame );" give exception comes on this code

File : viewform.cpp

#ifdef _DEBUG

    // dialog template must exist and be invisible with WS_CHILD set

    if (!_AfxCheckDialogTemplate(m_lpszTemplateName, TRUE))

    {

         ASSERT(FALSE);          // invalid dialog template name

         PostNcDestroy();        // cleanup if Create fails too soon

         return FALSE;

    }

#endif //_DEBUG

tell me, how solve this problem?

regards,

Mohammad Omer Nasir.