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118 lines
2.5 KiB
118 lines
2.5 KiB
//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\
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//
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// chanenum.h
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//
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// The definition of the channel enumerator.
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//
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// History:
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//
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// 8/6/97 edwardp Created.
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//
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////////////////////////////////////////////////////////////////////////////////
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//
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// Check for previous includes of this file.
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//
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#ifndef _CHANENUM_H_
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#define _CHANENUM_H_
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/*
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//
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// Defines
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//
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#define TSTR_CHANNEL_KEY TEXT("Software\\Microsoft\\Windows\\CurrentVersion\\Channels")
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//
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// Helper functions.
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//
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HKEY Reg_GetChannelKey(void);
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HRESULT Reg_WriteChannel(LPCTSTR pszPath,LPCTSTR pszURL);
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HRESULT Reg_RemoveChannel(LPCTSTR pszPath);
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*/
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//
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// Structures.
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//
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typedef struct _tagSTACKENTRY
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{
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LPTSTR pszPath;
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_tagSTACKENTRY* pNext;
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} STACKENTRY;
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typedef enum _tagINIVALUE
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{
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INI_GUID = 0,
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INI_URL = 1
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} INIVALUE;
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//
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// Class definition for the channel enumerator class.
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//
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class CChannelEnum : public IEnumChannels
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{
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//
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// Methods
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//
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public:
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// Constructor
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CChannelEnum(DWORD dwEnumFlags, LPCWSTR pszURL);
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// IUnknown
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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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// IEnumIDList
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STDMETHODIMP Next(ULONG celt, CHANNELENUMINFO* rgInfo, ULONG *pceltFetched);
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STDMETHODIMP Skip(ULONG celt);
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STDMETHODIMP Reset(void);
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STDMETHODIMP Clone(IEnumChannels **ppenum);
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private:
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// Destructor
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~CChannelEnum(void);
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// Helper methods
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inline BOOL DirectoryStack_IsEmpty(void);
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void DirectoryStack_FreeEntry(STACKENTRY* pse);
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void DirectoryStack_FreeStack(void);
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STACKENTRY* DirectoryStack_Pop(void);
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BOOL DirectoryStack_Push(LPCTSTR pszPath);
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BOOL DirectoryStack_InitFromFlags(DWORD dwEnumFlags);
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BOOL DirectoryStack_PushSubdirectories(LPCTSTR pszPath);
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BOOL FindNextChannel(CHANNELENUMINFO* pInfo);
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BOOL ReadChannelInfo(LPCTSTR pszPath, CHANNELENUMINFO* pInfo);
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BOOL ContainsChannelDesktopIni(LPCTSTR pszPath);
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BOOL URLMatchesIni(LPCTSTR pszPath, LPCTSTR pszURL);
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BOOL ReadFromIni(LPCTSTR pszPath, LPTSTR pszOut, int cch, INIVALUE iv);
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LPOLESTR OleAllocString(LPCTSTR psz);
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SUBSCRIPTIONSTATE GetSubscriptionState(LPCTSTR pszURL);
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//
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// Member variables.
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//
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private:
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ULONG m_cRef;
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STACKENTRY* m_pseDirectoryStack;
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LPTSTR m_pszURL;
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DWORD m_dwEnumFlags;
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};
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#endif // _CHANENUM_H_
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