Windows Programming/Classes Hierarchy

MFC Classes Hierarchy CObject The root/base class for most of the MFC library. Some of the features it makes available to the programmer are serialization support, run-time class information, and object diagnostic output. Any derived class from CObject, can exploit these features. Class CObject in AFX.H Field Summary static const AFX_CORE_DATA CRuntimeClass classCObject Constructor Summary protected CObject() private CObject( const CObject& objectSrc ) virtual ~CObject() Method Summary void PASCAL operator delete( void* p ) virtual CRuntimeClass* GetRuntimeClass() const BOOL IsKindOf( const CRuntimeClass* pClass ) const BOOL IsSerializable() const void* PASCAL operator new( size_t, void* p ) void* PASCAL operator new( size_t nSize ) virtual void Serialize( CArchive& ar ) CCmdTarget CWinThread CWinApp CWnd CListCtrl This class encapsulates the functionality of a list view control, which is a control that displays a collection of items, each consisting of an icon and a label. Class CListCtrl in AFXCMN.H CObject | +--CCmdTarget | +--CWnd | +--CListCtrl class CListCtrl extends CWnd Fields inherited from class CWnd m_hWnd, wndTop, wndBottom, wndTopMost, wndNoTopMost, m_hWndOwner, m_nFlags, m_pfnSuper, m_nMsgDragList, m_nModalResult, m_pDropTarget, m_pCtrlCont, m_pCtrlSite, messageMap Fields inherited from class CCmdTarget messageMap, commandMap, dispatchMap, connectionMap, interfaceMap, eventsinkMap, m_dwRef, m_pOuterUnknown, m_xInnerUnknown, m_xDispatch, m_bResultExpected, m_xConnPtContainer Fields inherited from class CObject classCObject CToolBar This class encapsulates the functionality of a control bars that have a row of bitmapped buttons and/or separators. CToolBar objects are usually embedded members of frame-window objects derived from the class CFrameWnd or MDIFrameWnd. CTreeCtrl CException CArray CFile CDC CGdiObject CFont CHttpArgList Subclassing standard technique for customizing the behavior of a class Window Subclassing Window message route The mechanism by which MFC routes messages is also called the Message Map system that was created to wrap the old C API and reduce the level of complexity for programmers. // a Message Map example BEGIN_MESSAGE_MAP( ClNOMainFrameWnd, CFrameWnd ) ON_WM_SYSCOMMAND() ON_WM_CREATE() ON_WM_SIZE() ON_WM_CLOSE() ON_WM_MEASUREITEM() ON_WM_INITMENUPOPUP() ON_WM_MENUCHAR() ON_WM_DESTROY() ON_REGISTERED_MESSAGE( D_WM_REQUEST, OnMsgReqToShowWnd ) ON_COMMAND( ID_APP_TRAYCLICK, OnTrayClick ) ON_MESSAGE( C_WM_TIPACTION, OnTipOfTheDayAction ) END_MESSAGE_MAP() Message map The message map macros: ON_COMMAND and ON_BN_CLICKED the ON_COMMAND and ON_BN_CLICKED are the same, MFC command and control macro is preset to handle the Windows message WM_COMMAND and the notification routing mechanism uses the command ID to decide where to route to. Notifications with control notification code of zero (BN_CLICKED) are interpreted as commands. ON_UPDATE_COMMAND_UI the ON_UPDATE_COMMAND_UI macro. Component Object Model (COM)