44 lines
1.6 KiB
C
44 lines
1.6 KiB
C
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// WiaEventCallback.h: interface for the CWiaEventCallback class.
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//
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//////////////////////////////////////////////////////////////////////
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#if !defined(AFX_WIAEVENTCALLBACK_H__5125F8A0_29CF_4E4D_9D39_53DF7C29BD88__INCLUDED_)
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#define AFX_WIAEVENTCALLBACK_H__5125F8A0_29CF_4E4D_9D39_53DF7C29BD88__INCLUDED_
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#if _MSC_VER > 1000
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#pragma once
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#endif // _MSC_VER > 1000
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#define MAX_REGISTERED_EVENTS 50
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class CWiaEventCallback : public IWiaEventCallback
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{
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public:
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CWiaEventCallback();
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virtual ~CWiaEventCallback();
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// IUnknown members that delegate to m_pUnkRef.
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HRESULT _stdcall QueryInterface(const IID&,void**);
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ULONG _stdcall AddRef();
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ULONG _stdcall Release();
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HRESULT _stdcall ImageEventCallback(
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const GUID *pEventGUID,
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BSTR bstrEventDescription,
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BSTR bstrDeviceID,
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BSTR bstrDeviceDescription,
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DWORD dwDeviceType,
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BSTR bstrFullItemName,
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ULONG *plEventType,
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ULONG ulReserved);
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IUnknown* m_pIUnkRelease[MAX_REGISTERED_EVENTS];
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void SetViewWindowHandle(HWND hWnd);
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void SetNumberOfEventsRegistered(LONG lEventsRegistered);
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private:
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ULONG m_cRef; // Object reference count.
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HWND m_hViewWindow;
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LONG m_lNumEventsRegistered;
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TCHAR m_szWindowText[MAX_PATH];
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};
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#endif // !defined(AFX_WIAEVENTCALLBACK_H__5125F8A0_29CF_4E4D_9D39_53DF7C29BD88__INCLUDED_)
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