C / C++ / MFC

virtual BOOL CSegmentationFrame::PreCreateWindow( CREATESTRUCT& cs )
{
  cs.style ^= WS_SYSMENU;
  cs.sytle |= WS_MAXIMIZE;
  return CFrameWnd::PreCreateWindow( cs );
}

BOOL CSegmentationFrame::OnCreateClient(LPCREATESTRUCT lpcs, CCreateContext* pContext) 
{
	//calculate client size 
	CRect cr; 
	GetClientRect( &cr);
	// Window Styles
	DWORD dwStyle = WS_BORDER | WS_CHILD | WS_VISIBLE;

	// Main splitter wnd, two rows 1 columns
	if ( !m_mainSplitterWnd.CreateStatic( this, 2, 1 ) ) 
	{ 
		MessageBox( "Error setting up splitter frames!", "Init Error!", MB_OK | MB_ICONERROR ); 
		return FALSE; 
	}
	
	// Top splitter win, 2 rows 4 columns (To hold the slice views)
	if ( !m_topSplitterWnd.CreateStatic( &m_mainSplitterWnd, 2, 4, dwStyle ,m_mainSplitterWnd.IdFromRowCol(0,0) ) )
	{ 
		MessageBox( "Error setting up splitter frames!", "Init Error!", MB_OK | MB_ICONERROR ); 
		return FALSE; 
	}

	// Bottom Splitter window, 1 row 2 columns ( to hold the form and histogram view )
	if ( !m_botSplitterWnd.CreateStatic( &m_mainSplitterWnd, 1, 2, dwStyle ,m_mainSplitterWnd.IdFromRowCol(1,0) ) ) 
	{ 
		MessageBox( "Error setting up splitter frames!", "Init Error!", MB_OK | MB_ICONERROR ); 
		return FALSE; 
	}
	// Top Slice Views
	for (int row = 0; row < 2; row ++)
	{
		for (int col = 0; col < 4; col ++)
		{
			if ( !m_topSplitterWnd.CreateView( row, col, RUNTIME_CLASS(CSliceView), CSize(cr.Width()/4, cr.Height()/3), pContext ) ) 
			{ 
				MessageBox( "Error setting up splitter frames!", "Init Error!", MB_OK | MB_ICONERROR );
				return FALSE; 
			}

		}
	}
	// Bottom Slice Views
	if ( !m_botSplitterWnd.CreateView( 0, 0, RUNTIME_CLASS(CSegmentationForm), CSize(cr.Width()/2, cr.Height()/3), pContext ) ) 
	{ 
		MessageBox( "Error setting up splitter frames!", "Init Error!", MB_OK | MB_ICONERROR );
		return FALSE; 
	}

	if ( !m_botSplitterWnd.CreateView( 0, 1, RUNTIME_CLASS(CHistogramView), CSize(cr.Width()/2, cr.Height()/3), pContext ) ) 
	{ 
		MessageBox( "Error setting up splitter frames!", "Init Error!", MB_OK | MB_ICONERROR );
		return FALSE; 
	}

	return true; //CMDIChildWnd::OnCreateClient(lpcs, pContext);