46 lines
1.6 KiB
C
46 lines
1.6 KiB
C
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// WiaDataCallback.h: interface for the CWiaDataCallback class.
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//
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//////////////////////////////////////////////////////////////////////
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#if !defined(AFX_WIADATACALLBACK_H__5125F8A0_29CF_4E4D_9D39_53DF7C29BD88__INCLUDED_)
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#define AFX_WIADATACALLBACK_H__5125F8A0_29CF_4E4D_9D39_53DF7C29BD88__INCLUDED_
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#include "WiaAcquireDlg.h" // Added by ClassView
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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 MEMORY_BLOCK_FACTOR 2
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class CWiaDataCallback : public IWiaDataCallback
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{
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public:
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BOOL IsBITMAPDATA();
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BYTE* GetCallbackMemoryPtr(LONG *plDataSize);
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void SetBufferSizeRequest(LONG lBufferSize);
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void SetDialog(CWiaAcquireDlg *pAcquireDlg);
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CWiaAcquireDlg *m_pAcquireDlg;
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CWiaDataCallback();
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virtual ~CWiaDataCallback();
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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 Initialize(HWND hPreviewWnd = NULL);
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HRESULT _stdcall BandedDataCallback(LONG lMessage, LONG lStatus, LONG lPercentComplete,
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LONG lOffset, LONG lLength, LONG lReserved,
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LONG lResLength, BYTE* pbBuffer);
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private:
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void UpdateAcqusitionDialog(TCHAR *szMessage, LONG lPercentComplete);
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ULONG m_cRef; // Object reference count.
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PBYTE m_pBuffer; // complete data buffer
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LONG m_MemBlockSize;
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LONG m_BytesTransferred;
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long m_lPageCount;
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LONG m_lBufferSize;
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BOOL m_bBitmapData;
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BOOL m_bNewPageArrived;
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};
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#endif // !defined(AFX_WIADATACALLBACK_H__5125F8A0_29CF_4E4D_9D39_53DF7C29BD88__INCLUDED_)
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