//-------------------------------------------------------
//
//  ITrackFile
//
//  This interface can be used to create a reliable link
//  to a file.  This interface is not remotable.
//
//-------------------------------------------------------

cpp_quote( "EXTERN_C const CLSID CLSID_TrackFile; // {8790c947-a30b-11d0-8cab-00c04fd90f85}" )

[
    local,
    uuid(8790c948-a30b-11d0-8cab-00c04fd90f85),
    object,
    pointer_default(unique),
    version(1.0)
]
interface ITrackFile : IUnknown
{
    import "unknwn.idl";

    // Get necessary link state from a path

    HRESULT CreateFromPath( [in, string] const OLECHAR * poszPath );

    // Use state from CreateFromPath to determine
    // the current path

    HRESULT Resolve( [in, out] DWORD * pcbPath,
                     [out, size_is(*pcbPath), string] OLECHAR * poszPath,
                     [in] DWORD dwMillisecondTimeout );

    // Open the file.  Use the path as a hint, but ensure that the
    // correct object ID is opened.  This method will Resolve if
    // necessary.

    HRESULT Open( [in, out] DWORD * pcbPathHint,
 		  [in, out, size_is(*pcbPathHint), string] OLECHAR * poszPathHint,
 		  [in] DWORD dwMillisecondTimeout,
		  [in] DWORD dwDesiredAccess,	// access (read-write) mode 
    		  [in] DWORD dwShareMode,	// share mode 
		  [in] DWORD dwFlags,
                  [out] HANDLE * phFile );
}


//-------------------------------------------------------
//
//  ITrackStorage
//
//  This interface can be used to create a reliable link
//  to a structured storage.  This interface is remotable.
//
//-------------------------------------------------------

[
    uuid(8790c94a-a30b-11d0-8cab-00c04fd90f85),
    object,
    pointer_default(unique),
    version(1.0)
]
interface ITrackStorage : IUnknown
{
    import "unknwn.idl";

    // Get necessary link state from a path

    HRESULT CreateFromPath( [in, string] const OLECHAR * poszPath );

    // Use state from CreateFromPath to determine
    // the current path

    HRESULT Resolve( [in, out] DWORD * pcbPath,
                     [out, size_is(*pcbPath), string] OLECHAR * poszPath,
                     [in] DWORD dwMillisecondTimeout );

    // Open the storage.  Use the path as a hint, but ensure that the
    // correct object ID is opened.  This method will Resolve if
    // necessary.  The parameters are the same as in StgOpenStorageEx.

    HRESULT OpenStorageEx( [in, out] DWORD * pcbPathHint,
 		           [in, out, size_is(*pcbPathHint), string] OLECHAR * poszPathHint,
                           [in] DWORD dwMillisecondTimeout,
 		           [in] DWORD grfMode,
                           [in] DWORD stgfmt,              // enum
                           [in] DWORD grfAttrs,            // reserved
                           [in] REFIID riid,
                           [out, iid_is(riid)] void ** ppObjectOpen );

}


//-------------------------------------------------------
//
//  ITrackFileRestricted
//
//  This interface is used for testing purposed only.
//  It is equivalent to ITrackFile, except the Resolve
//  method allows for special restrictions.
//
//-------------------------------------------------------

[
    local,
    uuid(8790c949-a30b-11d0-8cab-00c04fd90f85),
    object,
    pointer_default(unique),
    version(1.0)
]
interface ITrackFileRestricted : IUnknown
{
    import "unknwn.idl";

    cpp_quote("")
    cpp_quote("// 'Restrictions' flags")
    typedef enum _TrkMendRestrictions
    {
        TRK_MEND_DEFAULT                    = 0,
        TRK_MEND_LAST_ONLY                  = 1,
        TRK_MEND_DONT_USE_LOG               = 2,
        TRK_MEND_DONT_USE_DC                = 4,
        TRK_MEND_SLEEP_DURING_SEARCH        = 8,
        TRK_MEND_DONT_SEARCH_ALL_VOLUMES    = 16,
        TRK_MEND_DONT_USE_VOLIDS            = 32
    } TrkMendRestrictions;
    

    // Get necessary link state from a path

    HRESULT CreateFromPath( [in, string] const OLECHAR * poszPath );

    // Use state from CreateFromPath to determine
    // the current path

    HRESULT Resolve( [in, out] DWORD * pcbPath,
                     [out, size_is(*pcbPath), string] OLECHAR * poszPath,
                     [in] DWORD dwMillisecondTimeout,
                     [in] DWORD Restrictions );

    // Open the file.  Use the path as a hint, but ensure that the
    // correct object ID is opened.  This method will Resolve if
    // necessary.

    HRESULT Open ([in, out] DWORD * pcbPathHint,
 		  [in, out, size_is(*pcbPathHint), string] OLECHAR * poszPathHint,
 		  [in] DWORD dwMillisecondTimeout,
		  [in] DWORD dwDesiredAccess,	// access (read-write) mode 
    		  [in] DWORD dwShareMode,	// share mode 
		  [in] DWORD dwFlags,
                  [out] HANDLE * phFile );
}