请教MFC单文档如何在DOC类中获得VIEW类的指针

请问MFC单文档怎么在DOC类中获得VIEW类的指针？

C/C++ code

CFrameWnd* pmain = (CFrameWnd*)AfxGetApp()->m_pActiveWnd;//获得视图类指针        CPacketView *pdc = (CPacketView *)pmain->GetActiveView();

C/C++ code

CView* CXXXDoc::GetView(CRuntimeClass* pClass){    CView* pView;    POSITION pos=GetFirstViewPosition();    while(pos!=NULL){        pView=GetNextView(pos);        if(!pView->IsKindOf(pClass))        break;    }    if(!pView->IsKindOf(pClass)){        AfxMessageBox("No view");        return NULL;    }    return pView;}pClass传个你想的view做参数:  CXXXView* pXXXView=(CXXXView*)GetView(RUNTIME_CLASS(CXXXView));