单文档窗口多视的问题

[Luck04]

如何实现单文档窗口的多视，请高手给一个例子。

[panda_w]

请看下面例子
在ProcessShellCommand
CView* pActiveView = ((CFrameWnd*) m_pMainWnd)->GetActiveView();
m_pOldView = pActiveView; //保存旧视
m_pNewView = (CView*) new CTrainForm; //新视
CDocument* pCurrentDoc=((CFrameWnd*)m_pMainWnd)->GetActiveDocument();//取得活动文档
/* 初始化CCreateContext对象，使其指向活动文档。用它为文档增加在
CView::OnCreate()函数中生成的新视 */
CCreateContext newContext;
newContext.m_pNewViewClass = NULL;
newContext.m_pNewDocTemplate = NULL;
newContext.m_pLastView = NULL;
newContext.m_pCurrentFrame = NULL;
newContext.m_pCurrentDoc = pCurrentDoc; //指向活动文档
// 初始活动视的ID为AFX_IDW_PANE_FIRST，该值按1递增赋予新视
UINT viewID = AFX_IDW_PANE_FIRST + 1;

// 创建新视
CRect rect(0, 0, 0, 0); //注意初始化参数为0
m_pNewView->Create(NULL, "AnyWindowName", WS_CHILD, rect, m_pMainWnd, viewID, &newContext);
//发送WM_INITIALUPDATE消息
m_pNewView->SendMessage(WM_INITIALUPDATE, 0, 0);

return TRUE;
}

CView* CHhApp::SwitchView(CView * pNewView)
{
//取得活动视
CView* pActiveView = ((CFrameWnd*) m_pMainWnd)->GetActiveView();

//交换视窗口的标识
#ifndef _WIN32 //不是Win32应用，注意使用函数为Word型
UINT temp =::GetWindowWord(pActiveView->m_hWnd, GWW_ID);
::SetWindowWord(pActiveView->m_hWnd, GWW_ID,
::GetWindowWord(pNewView->m_hWnd, GWW_ID));
::SetWindowWord(pNewView->m_hWnd, GWW_ID, temp);
#else //不是Win32应用，注意使用函数为Long型
UINT temp =::GetWindowLong(pActiveView->m_hWnd, GWL_ID);
::SetWindowLong(pActiveView->m_hWnd, GWL_ID,
::GetWindowLong(pNewView->m_hWnd, GWL_ID));
::SetWindowLong(pNewView->m_hWnd, GWL_ID, temp);
#endif
pActiveView->ShowWindow(SW_HIDE); //将当前视图隐藏
pNewView->ShowWindow(SW_SHOW); //显示新视图
((CFrameWnd*) m_pMainWnd)->SetActiveView(pNewView); //设置新视图为活动视图
((CFrameWnd*) m_pMainWnd)->RecalcLayout(); //重新布局
pNewView->Invalidate(); //重绘
return pActiveView; //返回活动视
}