Create a Universal Document Template which supports Dynamic Frame Window Layout

// ChildFrm.cpp : implementation of the CChildFrame class
//
#include "stdafx.h"
#include "VisualFrameWork.h"

#include "ChildFrm.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#endif


// CChildFrame

IMPLEMENT_DYNCREATE(CChildFrame, CMDIChildWnd)

BEGIN_MESSAGE_MAP(CChildFrame, CMDIChildWnd)
	ON_WM_DESTROY()
	ON_WM_MDIACTIVATE()
END_MESSAGE_MAP()


// CChildFrame construction/destruction

CChildFrame::CChildFrame()
{
	// TODO: add member initialization code here
//////////////////$tangramapp$////////////////////////////
	m_TangramFrameObj.Create(this);
//////////////////$tangramapp end$////////////////////////////
}

CChildFrame::~CChildFrame()
{
	//////////////////$tangramapp$////////////////////////////
	m_TangramFrameObj.m_pDoc = NULL;
//////////////////$tangramapp end$////////////////////////////
}


BOOL CChildFrame::PreCreateWindow(CREATESTRUCT& cs)
{
	// TODO: Modify the Window class or styles here by modifying the CREATESTRUCT cs
	if( !CMDIChildWnd::PreCreateWindow(cs) )
		return FALSE;

	return TRUE;
}


// CChildFrame diagnostics

#ifdef _DEBUG
void CChildFrame::AssertValid() const
{
	CMDIChildWnd::AssertValid();
}

void CChildFrame::Dump(CDumpContext& dc) const
{
	CMDIChildWnd::Dump(dc);
}

#endif //_DEBUG


// CChildFrame message handlers
// CChildFrame ��Ϣ�������
//////////////////$tangramapp$////////////////////////////
CDocument* CChildFrame::GetActiveDocument() 
{
	if(m_TangramFrameObj.m_bActiveFrame)return NULL;
	
	return CMDIChildWnd::GetActiveDocument();
}

void CChildFrame::OnDestroy() 
{
	m_TangramFrameObj.OnDestroy();
	CMDIChildWnd::OnDestroy();
	
	// TODO: Add your message handler code here
	
}

void CChildFrame::OnMDIActivate(BOOL bActivate, CWnd* pActivateWnd, CWnd* pDeactivateWnd) 
{
	CMDIChildWnd::OnMDIActivate(bActivate, pActivateWnd, pDeactivateWnd);
	
	m_TangramFrameObj.OnActivate(bActivate);
	
}

void CChildFrame::OnUpdateFrameTitle(BOOL bAddToTitle)
{
	m_TangramFrameObj.OnUpdateFrameTitle(bAddToTitle);
}
//////////////////$tangramapp end$////////////////////////////

BOOL CChildFrame::OnCreateClient(LPCREATESTRUCT lpcs, CCreateContext* pContext)
{
	// TODO: Add your specialized code here and/or call the base class

	return CMDIChildWnd::OnCreateClient(lpcs, pContext);
}