lhazole.h

[詳解]

/*************************************************************************/
#pragma once
 
class EnumFORMATETC : public IEnumFORMATETC {
public:
    EnumFORMATETC(ULONG cur, LPUNKNOWN obj, ULONG formats, LPFORMATETC list);
    ‾EnumFORMATETC();
    HRESULT         STDMETHODCALLTYPE QueryInterface(REFIID riid, LPVOID FAR* lplpvObj);
    ULONG           STDMETHODCALLTYPE AddRef();
    ULONG           STDMETHODCALLTYPE Release();
    HRESULT         STDMETHODCALLTYPE Next(ULONG celt, FORMATETC *rgelt, ULONG *pceltFetched);
    HRESULT         STDMETHODCALLTYPE Skip(ULONG celt);
    HRESULT         STDMETHODCALLTYPE Reset();
    HRESULT         STDMETHODCALLTYPE Clone(IEnumFORMATETC **ppenum);
 
private:
    ULONG           m_refCnt;
    LPUNKNOWN       m_pUnknownObj;
    ULONG           m_currElement;
    ULONG           m_numFormats;
    LPFORMATETC     m_formatList;
 
};
 
class DataObject : public IDataObject {
public:
    HGLOBAL         hGlobal;
    //
    DataObject(void);
    ‾DataObject();
    HRESULT         STDMETHODCALLTYPE QueryInterface(REFIID riid, LPVOID FAR *lplpvObj);
    ULONG           STDMETHODCALLTYPE AddRef();
    ULONG           STDMETHODCALLTYPE Release();
    HRESULT         STDMETHODCALLTYPE GetData(FORMATETC *pFormatetc, STGMEDIUM *pmedium);
    HRESULT         STDMETHODCALLTYPE GetDataHere(FORMATETC *pFormatetc, STGMEDIUM *pmedium);
    HRESULT         STDMETHODCALLTYPE QueryGetData(FORMATETC *pFormatetc);
    HRESULT         STDMETHODCALLTYPE GetCanonicalFormatEtc(FORMATETC *pFormatetcIn, FORMATETC *pFormatetcOut);
    HRESULT         STDMETHODCALLTYPE SetData(FORMATETC *pFormatetc, STGMEDIUM *pmedium, BOOL fRelease);
    HRESULT         STDMETHODCALLTYPE EnumFormatEtc(DWORD dwDirection, IEnumFORMATETC **ppenumFormatetc);
    HRESULT         STDMETHODCALLTYPE DAdvise(FORMATETC *pFormatetc, DWORD advf, IAdviseSink *pAdvSink, DWORD *pdwConnection);
    HRESULT         STDMETHODCALLTYPE DUnadvise(DWORD dwConnection);
    HRESULT         STDMETHODCALLTYPE EnumDAdvise(IEnumSTATDATA **ppenumAdvise);
 
private:
    ULONG           m_refCnt;
    FORMATETC       m_Etc;
    //
    HGLOBAL         DuplicateGlobalMem(HGLOBAL srcGlobal);
 
};
 
class DropSource : public IDropSource {
public:
    DropSource(LHAZ* lhazp);
    HRESULT         STDMETHODCALLTYPE QueryInterface(REFIID riid, LPVOID FAR *lplpvObj);
    ULONG           STDMETHODCALLTYPE AddRef();
    ULONG           STDMETHODCALLTYPE Release();
    HRESULT         STDMETHODCALLTYPE QueryContinueDrag(BOOL fEscapePressed, DWORD grfKeyState);
    HRESULT         STDMETHODCALLTYPE GiveFeedback(DWORD dwEffect);
 
protected:
    LHAZ*           m_lhazp;
 
private:
    DWORD           m_Effect;
    ULONG           m_refCnt;
    //
    virtual void    ExtractTmp(void);
 
};
 
class DropSource_GD : public DropSource {
public:
    DropSource_GD(LHAZ* lhazp);
 
private:
    void            ExtractTmp(void);
 
};
 
class DropSource_OD : public DropSource {
public:
    DropSource_OD(LHAZ* lhazp);
 
private:
    void            ExtractTmp(void);
 
};
 
class DropSource_DB : public DropSource {
public:
    DropSource_DB(LHAZ* lhazp);
 
private:
    void            ExtractTmp(void);
 
};