Split window in MDI

[Anu_Bala]

Hi, I want 3 split windows in my application,in that left for Tree control and Right window act as a main window and bottom window have list control to show some log of my application. For that i made this code.. in Mainframe.cpp(), in OnCreateClient()

if(!m_SplitterWnd.CreateStatic(this, 2, 1))
return FALSE;

CRect rect;     
GetClientRect(&rect); 

if(!m\_SplitterWnd.CreateView(1, 0, RUNTIME\_CLASS(CBottomView), CSize(rect.Width(), 50),  pContext))        
	return FALSE;       

m\_SplitterWnd.SetRowInfo(0, 800, 50);
m\_SplitterWnd.SetRowInfo(1, 330, 50);

if (!m\_SplitterWnd1.CreateStatic(&m\_SplitterWnd, 1, 2, WS\_CHILD | WS\_VISIBLE | WS\_BORDER |AFX\_IDW\_PANE\_FIRST, m\_SplitterWnd.IdFromRowCol(0,0)))     
 	return FALSE;     
       // first pane     

if(!m\_SplitterWnd1.CreateView(0, 0,  RUNTIME\_CLASS(CTreeMenuView), CSize(rect.Width()/5,rect.Height()-50), pContext))	          
	return FALSE;      
       //Second pane     

if(!m\_SplitterWnd1.CreateView(0, 1, RUNTIME\_CLASS(CMainWindowView), CSize(rect.Width()-rect.Width()/5,rect.Height()-50), pContext))     
	return FALSE;  

	 	int nWidth=rect.Width();
m\_SplitterWnd1.SetColumnInfo(0, nWidth\*0.25, 50);
m\_SplitterWnd1.SetColumnInfo(1, nWidth\*0.75, 50);


return CMDIFrameWnd::OnCreateClient(lpcs, pContext);

And i have to attach all my child window in right side window( CMainWindowView).. In my app class,

pDocTemplate = new CMultiDocTemplate(IDR_MAINFRAME,
RUNTIME_CLASS(CABBHarmonyDoc),
RUNTIME_CLASS(CChildFrame), // custom MDI child frame
RUNTIME_CLASS(CMainWindowView));
if (!pDocTemplate)
return FALSE;
AddDocTemplate(pDocTemplate);

pGraphViewTemplate = new CMultiDocTemplate(
	IDR\_MAINFRAME,
	RUNTIME\_CLASS(CABBHarmonyDoc),
	RUNTIME\_CLASS(CChildFrame), 
	RUNTIME\_CLASS(CGraphview));
AddDocTemplate(pGraphViewTemplate);

So when i press F5,this GraphView should display in MainwindowView. But it does not appear.Whats the mistake i did? Pls help me.. in Mianframe.cpp

void CMainFrame::OnGraphview()
{

if( pGraphDisplayFrame == NULL )
{		
	CDocTemplate \*pTemplate = theApp.pGraphViewTemplate;
	CABBHarmonyDoc\* pDoc = new CABBHarmonyDoc;
	pGraphDisplayFrame = (CMDIChildWnd \*)pTemplate->CreateNewFrame( pDoc ,NULL );
	if( pGraphDisplayFrame == NULL )
	{
		AfxMessageBox( "Unable to Create Graph Display" );
		return;
	}
	pTemplate->InitialUpdateFrame( pGraphDisplayFrame,NULL );
}
else
	MDIActivate( pGraphDisplayF

[Jochen Arndt]

You are allocating a new uninitialized instance of your document in OnGraphView() and use it for creation of the new frame. You should replace the pDoc parameter by your existing document. You may also move the OnGraphView() handler from the main frame class to your document class (passing then this for the document pointer). Because the graph can be only shown when a document has been loaded.