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#pragma once
class CDataObject : public IDataObject
{
public:
//
// IUnknown members
//
HRESULT __stdcall QueryInterface(REFIID iid, void** ppvObject);
ULONG __stdcall AddRef(void);
ULONG __stdcall Release(void);
//
// IDataObject members
//
HRESULT __stdcall GetData(FORMATETC* pFormatEtc, STGMEDIUM* pMedium);
HRESULT __stdcall GetDataHere(FORMATETC* pFormatEtc, STGMEDIUM* pMedium);
HRESULT __stdcall QueryGetData(FORMATETC* pFormatEtc);
HRESULT __stdcall GetCanonicalFormatEtc(FORMATETC* pFormatEct, FORMATETC* pFormatEtcOut);
HRESULT __stdcall SetData(FORMATETC* pFormatEtc, STGMEDIUM* pMedium, BOOL fRelease);
HRESULT __stdcall EnumFormatEtc(DWORD dwDirection, IEnumFORMATETC** ppEnumFormatEtc);
HRESULT __stdcall DAdvise(FORMATETC* pFormatEtc, DWORD advf, IAdviseSink* pAdvSink, DWORD* pdwConnection);
HRESULT __stdcall DUnadvise(DWORD dwConnection);
HRESULT __stdcall EnumDAdvise(IEnumSTATDATA** ppEnumAdvise);
//
// Constructor / Destructor
//
CDataObject();
CDataObject(const FORMATETC* fmt, const STGMEDIUM* stgmed, int count);
~CDataObject();
protected:
void UpdateData(const FORMATETC* pFormatEtc, const STGMEDIUM* pMedium, int count);
private:
int LookupFormatEtc(FORMATETC* pFormatEtc);
//
// any private members and functions
//
LONG m_lRefCount;
FORMATETC* m_pFormatEtc;
STGMEDIUM* m_pStgMedium;
LONG m_nNumFormats;
};
class CEMFObject : public CDataObject
{
public:
// IDataObject members
HRESULT __stdcall GetData(FORMATETC* pFormatEtc, STGMEDIUM* pMedium);
// Constructor / Destructor
CEMFObject(HENHMETAFILE hEmf);
~CEMFObject();
private:
HENHMETAFILE m_hEmf;
};
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