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51 lines
1.7 KiB
51 lines
1.7 KiB
/*******************************************************************************
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*
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* (C) COPYRIGHT MICROSOFT CORP., 1997
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*
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* TITLE: IEnumWFI.h
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*
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* VERSION: 2.0
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*
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* AUTHOR: ByronC
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*
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* DATE: 8 Aug, 1998
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* 08/10/1999 - Converted from IEnumFormatEtc to IEnumWIA_FORMAT_INFO
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*
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* DESCRIPTION:
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* Declaration and definitions for the CEnumFormatEtc class.
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*
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*******************************************************************************/
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// IEnumWIA_FORMAT_INFO object is created from IWiaDataTransfer::idtEnumWIA_FORMAT_INFO.
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class CEnumWiaFormatInfo : public IEnumWIA_FORMAT_INFO
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{
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private:
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ULONG m_cRef; // Object reference count.
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ULONG m_iCur; // Current element.
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LONG m_cFormatInfo; // Number of WIA_FORMAT_INFO in use.
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WIA_FORMAT_INFO *m_pFormatInfo; // Source of WIA_FORMAT_INFO.
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CWiaItem *m_pCWiaItem; // The WIA Item whose WIA_FORMAT_INFO is being requested
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public:
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// Constructor, initialization and destructor methods.
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CEnumWiaFormatInfo();
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HRESULT Initialize(CWiaItem *pWiaItem);
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~CEnumWiaFormatInfo();
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//IUnknown members that delegate to m_pUnkRef.
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HRESULT _stdcall QueryInterface(const IID& iid, void** ppv);
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ULONG _stdcall AddRef();
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ULONG _stdcall Release();
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//IEnumWIA_FORMAT_INFO members
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HRESULT __stdcall Next(
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ULONG cfi,
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WIA_FORMAT_INFO *pfi,
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ULONG *pcfi);
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HRESULT __stdcall Skip(ULONG cfi);
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HRESULT __stdcall Reset(void);
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HRESULT __stdcall Clone(IEnumWIA_FORMAT_INFO **ppIEnum);
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HRESULT __stdcall GetCount(ULONG *pcelt);
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};
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