MFC SDI 中 CreateNewFrame 创建新窗口问题

Question

创建新窗口的代码如下，是使用 CreateNewFrame ，在使用这个函数创建窗口时，程序会收到什么消息，还有新创建的窗口被关闭时，又会收到什么消息？想在这两个过程中处理一些事务。void CMyView::OnNewWindow2(LPDISPATCH * ppDisp, BOOL * Cancel)
{
//在新窗口打开链接CWinApp *pApp = AfxGetApp();  CDocTemplate *pDocTemplate;  
POSITION pos = pApp->GetFirstDocTemplatePosition();  
pDocTemplate = pApp->GetNextDocTemplate(pos);  ASSERT(pDocTemplate);  CFrameWnd* pNewFrame = pDocTemplate-> CreateNewFrame(GetDocument(), (CFrameWnd*)AfxGetMainWnd());  
ASSERT(pNewFrame);  pDocTemplate->InitialUpdateFrame(pNewFrame, NULL);  CMyView *pWBVw = (CMyView*)pNewFrame-> GetActiveView();  
ASSERT(pWBVw);  *ppDisp = pWBVw->GetApplication();  }

Answer 1

SDI程序CreateFrame（）？？
SDI切换View：
void CMainFrame::SwitchViews(int ID)
{
CView* pOldActiveView = GetActiveView();
CView* pNewActiveView;
CCreateContext cc;
cc.m_pCurrentDoc=pOldActiveView->GetDocument();
CString title=cc.m_pCurrentDoc->GetPathName();;
// which one
switch (ID)
{
case 1://
pNewActiveView=(CView*) new CWinOh51View;
title += " Binary View";
break;
        }
// Create new 
pNewActiveView->Create(0,0,0,CFrameWnd::rectDefault,this,ID,&cc);
pNewActiveView->OnInitialUpdate();
SetActiveView(pNewActiveView);
pNewActiveView->ShowWindow(SW_SHOW);
// Exchange view window ID's so RecalcLayout() works.
SetWindowLong(pNewActiveView->m_hWnd, GWL_ID,AFX_IDW_PANE_FIRST);
RecalcLayout();
//If we use: delete pOldActiveView,
//we got : Warning: calling DestroyWindow in CWnd::~CWnd,
//OnDestroy or PostNcDestroy in derived class will not be called.
pOldActiveView->DestroyWindow();
// new title
SetWindowText(title);
}