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253 lines
8.2 KiB
253 lines
8.2 KiB
#ifndef CHCOMMON_H__
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#define CHCOMMON_H__
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#ifdef __cplusplus
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HRESULT _GetShortcut(LPCTSTR pszUrl, REFIID riid, void **ppv);
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HRESULT AlignPidl(LPCITEMIDLIST* ppidl, BOOL* pfRealigned);
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HRESULT AlignPidlArray(LPCITEMIDLIST* apidl, int cidl, LPCITEMIDLIST** papidl,
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BOOL* pfRealigned);
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void FreeRealignedPidlArray(LPCITEMIDLIST* apidl, int cidl);
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void inline FreeRealignedPidl(LPCITEMIDLIST pidl)
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{
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ILFree((LPITEMIDLIST)pidl);
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}
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UINT MergeMenuHierarchy(HMENU hmenuDst, HMENU hmenuSrc, UINT idcMin, UINT idcMax);
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void ResizeStatusBar(HWND hwnd, BOOL fInit);
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HRESULT _ArrangeFolder(HWND hwnd, UINT uID);
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BOOL _TitleIsGood(LPCWSTR psz);
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//////////////////////////////////////////////////////////////////////
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// StrHash -- A generic string hasher
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// Stores (char*, void*) pairs
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// Marc Miller (t-marcmi), 1998
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/*
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* TODO:
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* provide a way to update/delete entries
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* provice a way to specify a beginning table size
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* provide a way to pass in a destructor function
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* for void* values
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*/
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class StrHash {
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public:
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StrHash(int fCaseInsensitive = 0);
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~StrHash();
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void* insertUnique(LPCTSTR pszKey, int fCopy, void* pvVal);
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void* retrieve(LPCTSTR pszKey);
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#ifdef DEBUG
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void _RemoveHashNodesFromMemList();
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void _AddHashNodesFromMemList();
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#endif // DEBUG
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protected:
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class StrHashNode {
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friend class StrHash;
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protected:
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LPCTSTR pszKey;
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void* pvVal;
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int fCopy;
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StrHashNode* next;
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public:
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StrHashNode(LPCTSTR psz, void* pv, int fCopy, StrHashNode* next);
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~StrHashNode();
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};
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// possible hash-table sizes, chosen from primes not close to powers of 2
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static const unsigned int sc_auPrimes[];
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static const unsigned int c_uNumPrimes;
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static const unsigned int c_uFirstPrime;
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static const unsigned int c_uMaxLoadFactor; // scaled by USHORT_MAX
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unsigned int nCurPrime; // current index into sc_auPrimes
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unsigned int nBuckets;
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unsigned int nElements;
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StrHashNode** ppshnHashChain;
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int _fCaseInsensitive;
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unsigned int _hashValue(LPCTSTR, unsigned int);
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StrHashNode* _findKey(LPCTSTR pszStr, unsigned int ubucketNum);
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unsigned int _loadFactor();
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int _prepareForInsert();
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private:
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// empty private copy constructor to prevent copying
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StrHash(const StrHash& strHash) { }
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// empty private assignment constructor to prevent assignment
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StrHash& operator=(const StrHash& strHash) { return *this; }
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};
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//////////////////////////////////////////////////////////////////////
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/// OrderedList
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class OrderedList {
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public:
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class Element {
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public:
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friend class OrderedList;
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virtual int compareWith(Element *pelt) = 0;
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virtual ~Element() { }
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private:
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Element* next;
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};
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OrderedList(unsigned int uSize);
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~OrderedList();
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#if DEBUG
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void _RemoveElementsFromMemlist();
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void _AddElementsToMemlist();
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#endif //DEBUg
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void insert(Element *pelt);
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Element *removeFirst();
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Element *peek() { return peltHead; }
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protected:
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Element *peltHead; // points to smallest in list
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unsigned int uSize;
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unsigned int uCount;
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public:
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// variable access functions
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unsigned int count() { return uCount; }
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BOOL full() { return (uSize && (uCount >= uSize)); }
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private:
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OrderedList(const OrderedList& ol) { }
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OrderedList& operator=(const OrderedList& ol) { return *this; }
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};
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class CDetailsOfFolder : public IShellDetails
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{
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public:
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CDetailsOfFolder(HWND hwnd, IShellFolder2 *psf) : _cRef(1), _psf(psf), _hwnd(hwnd)
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{
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_psf->AddRef();
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}
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// *** IUnknown methods ***
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STDMETHOD(QueryInterface)(REFIID riid, void ** ppv);
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STDMETHOD_(ULONG,AddRef)();
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STDMETHOD_(ULONG,Release)();
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// IShellDetails
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STDMETHOD(GetDetailsOf)(LPCITEMIDLIST pidl, UINT iColumn, SHELLDETAILS *pdi);
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STDMETHOD(ColumnClick)(UINT iColumn);
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private:
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virtual ~CDetailsOfFolder() { _psf->Release(); }
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LONG _cRef;
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IShellFolder2 *_psf;
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HWND _hwnd;
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};
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class CFolderArrangeMenu : public IContextMenu
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{
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public:
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CFolderArrangeMenu(UINT idMenu) : _cRef(1), _idMenu(idMenu)
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{
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}
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// IUnknown
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STDMETHOD(QueryInterface)(REFIID riid, void ** ppv);
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STDMETHOD_(ULONG,AddRef)();
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STDMETHOD_(ULONG,Release)();
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// IContextMenu
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STDMETHODIMP QueryContextMenu(HMENU hmenu, UINT indexMenu, UINT idCmdFirst,
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UINT idCmdLast, UINT uFlags);
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STDMETHODIMP InvokeCommand(LPCMINVOKECOMMANDINFO lpici);
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STDMETHODIMP GetCommandString(UINT_PTR idCmd, UINT uType,UINT *pwReserved,
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LPSTR pszName, UINT cchMax);
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private:
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virtual ~CFolderArrangeMenu() { }
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LONG _cRef;
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UINT _idMenu;
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};
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////////////////////////////////////////////////////////////////////////////
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//
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// CBaseItem Object
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//
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////////////////////////////////////////////////////////////////////////////
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class CBaseItem :
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public IContextMenu,
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public IDataObject,
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public IExtractIconA,
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public IExtractIconW,
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public IQueryInfo
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{
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public:
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CBaseItem();
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HRESULT Initialize(HWND hwnd, UINT cidl, LPCITEMIDLIST *ppidl);
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// IUnknown Methods
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STDMETHODIMP QueryInterface(REFIID,void **);
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STDMETHODIMP_(ULONG) AddRef(void);
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STDMETHODIMP_(ULONG) Release(void);
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// IContextMenu Methods
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// STDMETHODIMP QueryContextMenu(HMENU hmenu, UINT indexMenu, UINT idCmdFirst,
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// UINT idCmdLast, UINT uFlags);
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// STDMETHODIMP InvokeCommand(LPCMINVOKECOMMANDINFO lpici);
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STDMETHODIMP GetCommandString(UINT_PTR idCmd, UINT uType,UINT *pwReserved,
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LPSTR pszName, UINT cchMax);
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// IQueryInfo Methods
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// STDMETHODIMP GetInfoTip(DWORD dwFlags, WCHAR **ppwszTip);
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STDMETHODIMP GetInfoFlags(DWORD *pdwFlags);
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// IExtractIconA Methods
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STDMETHODIMP GetIconLocation(UINT uFlags, LPSTR pszIconFile, UINT ucchMax, PINT pniIcon, PUINT puFlags) = 0;
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STDMETHODIMP Extract(LPCSTR pcszFile, UINT uIconIndex, HICON * phiconLarge, HICON * phiconSmall, UINT ucIconSize);
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// IExtractIconW Methods
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STDMETHODIMP GetIconLocation(UINT uFlags, LPWSTR pwzIconFile, UINT ucchMax, PINT pniIcon, PUINT puFlags);
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STDMETHODIMP Extract(LPCWSTR pcwzFile, UINT uIconIndex, HICON * phiconLarge, HICON * phiconSmall, UINT ucIconSize);
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// IDataObject Methods...
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// STDMETHODIMP GetData(LPFORMATETC pFEIn, LPSTGMEDIUM pSTM);
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STDMETHODIMP GetDataHere(LPFORMATETC pFE, LPSTGMEDIUM pSTM);
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// STDMETHODIMP QueryGetData(LPFORMATETC pFE);
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STDMETHODIMP GetCanonicalFormatEtc(LPFORMATETC pFEIn, LPFORMATETC pFEOut);
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STDMETHODIMP SetData(LPFORMATETC pFE, LPSTGMEDIUM pSTM, BOOL fRelease);
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// STDMETHODIMP EnumFormatEtc(DWORD dwDirection, LPENUMFORMATETC *ppEnum);
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STDMETHODIMP DAdvise(LPFORMATETC pFE, DWORD grfAdv, LPADVISESINK pAdvSink,
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DWORD *pdwConnection);
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STDMETHODIMP DUnadvise(DWORD dwConnection);
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STDMETHODIMP EnumDAdvise(LPENUMSTATDATA *ppEnum);
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// IDataObject helper functions
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HRESULT _CreateHTEXT(STGMEDIUM *pmedium);
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HRESULT _CreateUnicodeTEXT(STGMEDIUM *pmedium);
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HRESULT _CreateFileDescriptorA(STGMEDIUM *pSTM);
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HRESULT _CreateFileContents(STGMEDIUM *pSTM, LONG lindex);
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HRESULT _CreateURL(STGMEDIUM *pSTM);
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HRESULT _CreatePrefDropEffect(STGMEDIUM *pSTM);
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protected:
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virtual ~CBaseItem();
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virtual LPCTSTR _GetUrl(int nIndex) = 0;
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virtual LPCTSTR _PidlToSourceUrl(LPCITEMIDLIST pidl) = 0;
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virtual UNALIGNED const TCHAR* _GetURLTitle(LPCITEMIDLIST pcei) = 0;
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LPCTSTR _GetDisplayUrlForPidl(LPCITEMIDLIST pidl, LPTSTR pszDisplayUrl, DWORD dwDisplayUrl);
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HRESULT _AddToFavorites(int nIndex);
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LONG _cRef; // reference count
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UINT _cItems; // number of items we represent
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LPCITEMIDLIST* _ppidl; // variable size array of items
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HWND _hwndOwner;
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};
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#endif // __cplusplus
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#endif
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