58 lines
1.9 KiB
C++
58 lines
1.9 KiB
C++
//---------------------------------------------------------------------------
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// Notifier.h : CVDNotifier header file
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//
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// Copyright (c) 1996 Microsoft Corporation, All Rights Reserved
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// Developed by Sheridan Software Systems, Inc.
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//---------------------------------------------------------------------------
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#ifndef __CVDNOTIFIER__
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#define __CVDNOTIFIER__
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class CVDNotifier : public IUnknown
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{
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protected:
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// Construction/Destruction
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CVDNotifier();
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virtual ~CVDNotifier();
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protected:
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// Data members
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DWORD m_dwRefCount; // reference count
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CVDNotifier * m_pParent; // pointer to CVDNotifier derived parent
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CPtrArray m_Children; // pointer array of CVDNotifier derived children
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public:
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//=--------------------------------------------------------------------------=
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// IUnknown methods implemented
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//
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STDMETHOD(QueryInterface)(REFIID riid, void **ppvObjOut);
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STDMETHOD_(ULONG, AddRef)(void);
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STDMETHOD_(ULONG, Release)(void);
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HRESULT JoinFamily (CVDNotifier* pParent);
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HRESULT LeaveFamily();
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CVDNotifier* GetParent () const { return m_pParent; }
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virtual HRESULT NotifyBefore(DWORD, ULONG, CURSOR_DBNOTIFYREASON[]);
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virtual HRESULT NotifyAfter (DWORD, ULONG, CURSOR_DBNOTIFYREASON[]);
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virtual HRESULT NotifyFail (DWORD, ULONG, CURSOR_DBNOTIFYREASON[]);
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protected:
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// helper functions
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HRESULT AddChild (CVDNotifier* pChild);
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HRESULT DeleteChild(CVDNotifier* pChild);
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virtual HRESULT NotifyOKToDo (DWORD, ULONG, CURSOR_DBNOTIFYREASON[]);
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virtual HRESULT NotifySyncBefore(DWORD, ULONG, CURSOR_DBNOTIFYREASON[]);
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virtual HRESULT NotifyAboutToDo (DWORD, ULONG, CURSOR_DBNOTIFYREASON[]);
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virtual HRESULT NotifySyncAfter (DWORD, ULONG, CURSOR_DBNOTIFYREASON[]);
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virtual HRESULT NotifyDidEvent (DWORD, ULONG, CURSOR_DBNOTIFYREASON[]);
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virtual HRESULT NotifyCancel (DWORD, ULONG, CURSOR_DBNOTIFYREASON[]);
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};
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#endif //__CVDNOTIFIER__
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