subject_48894.htm

一些关于vc的问答

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序号：48894 发表者：失落之湖 发表日期：2003-08-04 18:59:53
<br>主题：单文档多视图的切换问题
<br>内容：一个基于CFormView的单文档工程，此文档对应两个视，要求在菜单中能切换这两个视。<BR>我是这样做的<BR>BOOL CSvApp::InitInstance()<BR>。。。<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;CSingleDocTemplate* pDocTemplate;<BR>&nbsp;&nbsp;&nbsp;&nbsp;pDocTemplate = new CSingleDocTemplate(<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;IDR_MAINFRAME,<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;RUNTIME_CLASS(CSvDoc),<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;RUNTIME_CLASS(CMainFrame),&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; // main SDI frame window<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;RUNTIME_CLASS(CSvView));<BR>&nbsp;&nbsp;&nbsp;&nbsp;AddDocTemplate(pDocTemplate);<BR><BR>//&nbsp;&nbsp;以下为添加，添加CPointView视<BR>&nbsp;&nbsp;&nbsp;&nbsp;pDocTemplate = new CSingleDocTemplate(<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;IDR_MAINFRAME,<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;RUNTIME_CLASS(CSvDoc),<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;RUNTIME_CLASS(CMainFrame),&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; // main SDI frame window<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;RUNTIME_CLASS(CPointView));<BR>&nbsp;&nbsp;&nbsp;&nbsp;AddDocTemplate(pDocTemplate);<BR>//////////////////////////////////////////////////<BR><BR><BR>我是这样切换的<BR>//切换到CSvView视<BR>void CMainFrame::OnWindowEdit() <BR>{<BR>&nbsp;&nbsp;&nbsp;&nbsp;SwitchToView(0);<BR>&nbsp;&nbsp;&nbsp;&nbsp;<BR>}<BR>//切换到CPointView视<BR>void CMainFrame::OnWindowList() <BR>{<BR>&nbsp;&nbsp;&nbsp;&nbsp;SwitchToView(1);<BR>&nbsp;&nbsp;&nbsp;&nbsp;<BR>}<BR><BR>void CMainFrame::SwitchToView(int nView)<BR>{<BR>&nbsp;&nbsp;&nbsp;&nbsp;CView* pOldActiveView=GetActiveView();<BR>&nbsp;&nbsp;&nbsp;&nbsp;CView* pNewActiveView=(CView*)GetDlgItem(nView);<BR>&nbsp;&nbsp;&nbsp;&nbsp;if(pNewActiveView==NULL)<BR>&nbsp;&nbsp;&nbsp;&nbsp;{<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;switch(nView)<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;case 0:<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;pNewActiveView=(CView*)new CSvView;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;break;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;case 1:<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;pNewActiveView=(CView*)new CPointView;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;break;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;CCreateContext context;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;context.m_pCurrentDoc=pOldActiveView-&gt;GetDocument();<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;pNewActiveView-&gt;Create(NULL,NULL,0L,CFrameWnd::rectDefault,this,nView,&amp;context);<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;pNewActiveView-&gt;OnInitialUpdate();<BR>&nbsp;&nbsp;&nbsp;&nbsp;}<BR>&nbsp;&nbsp;&nbsp;&nbsp;SetActiveView(pNewActiveView);<BR>&nbsp;&nbsp;&nbsp;&nbsp;pNewActiveView-&gt;ShowWindow(SW_SHOW);<BR>&nbsp;&nbsp;&nbsp;&nbsp;pOldActiveView-&gt;ShowWindow(SW_HIDE);<BR>&nbsp;&nbsp;&nbsp;&nbsp;::SetWindowWord(pNewActiveView-&gt;m_hWnd,GWL_ID,AFX_IDW_PANE_FIRST);<BR>&nbsp;&nbsp;&nbsp;&nbsp;RecalcLayout();<BR>}<BR>为什么切换不过来啊！工具栏已经改变，但视却没有改变，是不是需要刷新啊！<BR>我改怎么作啊！麻烦哪位前辈指点一下<BR>
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<font color=red>答案被接受</font><br>回复者：木一 回复日期：2003-08-04 21:01:40
<br>内容：MSDN里面有一个Sample叫 COLLECT ，里面有实现视切换，代码很清秀。可以参考。
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回复者：失落之湖 回复日期：2003-08-05 15:09:56
<br>内容：sorry,我的MSDN好像不太全，能不能帮忙指点一下，或者您把它贴出来。谢谢！
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回复者：失落之湖 回复日期：2003-08-06 21:00:27
<br>内容：我找到了，问题解决了，原来这么简单。谢谢了。
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