关于mfc:CSplitterWnd动态分割

动态宰割不提了，网上一大堆。要害是动静宰割要怎么办？
1、从未切分到切分
2、从切分到未切分
3、从切分状态m到切分状态n的转变
比方这里要实现一个通达信的看盘窗口，分成主窗口和指标窗口。指标窗口可随时敞开，也可随时关上。

通过屡次尝试，最终确定以下方法

在OnCreateClient中，动态创建目前将要展现的视图，并且保留document指针

BOOL CMainFrame::OnCreateClient(LPCREATESTRUCT lpcs, CCreateContext* pContext){ CRect rect; GetClientRect(&rect); CView* view = new CMFCApplication4View(); view->Create(NULL,NULL,WS_CHILD|WS_VISIBLE,rect,this,AFX_IDW_PANE_FIRST,pContext); m_pDocument = pContext->m_pCurrentDoc; return TRUE;}

切换到宰割视图的时候，先将原来的窗口设置id为一个非AFX_IDW_PANE_FIRST的数字，而后动态创建宰割，之后将原来的窗口Destroy掉，并且调用InitialUpdateFrame使得新创建的外部视图能够应用document反对。

void CMainFrame::OnSplit(){  CWnd* oldView = GetDlgItem(AFX_IDW_PANE_FIRST); oldView->SetDlgCtrlID(1000);  createSplitter(oldView); oldView->DestroyWindow(); GetDlgItem(AFX_IDW_PANE_FIRST)->GetParentFrame()->InitialUpdateFrame( m_pDocument, TRUE );}

void CMainFrame::createSplitter(CWnd* oldView){ CAutoDeleteSplitterWnd* splitter = new CAutoDeleteSplitterWnd; if(!splitter->CreateStatic(this,2,1,WS_CHILD|WS_VISIBLE,AFX_IDW_PANE_FIRST)){  return; } CCreateContext context; context.m_pCurrentDoc =m_pDocument; context.m_pCurrentFrame = this; splitter->CreateView(0,0,RUNTIME_CLASS(CMyView),CSize(0,100),&context); splitter->CreateView(1,0,RUNTIME_CLASS(CMFCApplication4View),CSize(0,100),&context); CRect rect; oldView->GetWindowRect(&rect); ScreenToClient(&rect); splitter->MoveWindow(&rect,TRUE);}

CAutoDeleteSplitterWnd 是一个继承CSplitterWndEx的类，关键在于void CAutoDeleteSplitterWnd::OnNcDestroy(){  delete this;}

切换回来的代码与后面一模一样。

void CMainFrame::OnNotSplit(){ CWnd* oldView = GetDlgItem(AFX_IDW_PANE_FIRST); oldView->SetDlgCtrlID(1000); createSingleView(oldView); oldView->DestroyWindow(); GetDlgItem(AFX_IDW_PANE_FIRST)->GetParentFrame()->InitialUpdateFrame( m_pDocument, TRUE );}

void CMainFrame::createSingleView(CWnd* oldView){ CCreateContext context; context.m_pCurrentDoc =m_pDocument; context.m_pCurrentFrame = this; context.m_pNewViewClass = RUNTIME_CLASS(CMFCApplication4View); CRect rect; GetClientRect(&rect); CView* view = new CMFCApplication4View(); view->Create(NULL,NULL,WS_CHILD|WS_VISIBLE,rect,this,AFX_IDW_PANE_FIRST,&context); }