//

//  Copyright © 2001 - 2002, RESON Inc. All Rights Reserved.

//

//  No part of this file may be reproduced or transmitted in any form or by

//  any means, electronic or mechanical, including photocopy, recording, or

//  information storage or retrieval system, without permission in writing

//  from RESON Inc.

//

//  Filename:   7kFile.h

//

//  Project:    6046.

//

//  Author(s):  W. Arcus

//

//  Purpose:    

//

//  Notes:

//



#if !defined(AFX_7KFILE_H__814C7B7C_9BE1_4405_879B_7046C7CD91C0__INCLUDED_)

#define AFX_7KFILE_H__814C7B7C_9BE1_4405_879B_7046C7CD91C0__INCLUDED_



#if _MSC_VER > 1000

#pragma once

#endif // _MSC_VER > 1000



class EXPORT_DLL C7kFile

{

public:



    typedef enum tag7kFILEMODE

    {

        accessModeRead                = 0,

        accessModeWrite

    }

    EACCESSMODE;



    typedef enum tag7KFILEERROR

    {

        errorNone                   = 0,

        errorInvalidParameter,

        errorInvalidFileName,

        errorInvalidHandle,

        errorFileSeek,

        errorUnspecifiedException,

        errorOpen,

        errorWrite,

        errorRead

    }

    E7KFILEERROR;



    // Services.



                        C7kFile             (   void );

    virtual            ~C7kFile             (   void );



    // File operations.

                    

    bool                Open                (   LPCTSTR             lpszFileName    = NULL,

                                                const EACCESSMODE  &reAccessMode    = accessModeRead );



    bool                Close               (   void );



    // Record operations.



    bool                Write               (   BYTE                *pbyRecord,

                                                const unsigned long &rulBytesToWrite );



    bool                Read                (   BYTE                *pbyRecord,

                                                unsigned long       &rulBytesRead,

                                                const unsigned long &rulMaxBufferSize,

                                                const bool          &rbUseChecksum  = false );



    bool                Flush               (   void );



    double              FileSize            (   void );



    bool                IsFileOpen          (   void )  const;



    // State retrieval.



    LPCTSTR             FileName            (   void )  const;

    E7KFILEERROR        GetLastError        (   void )  const;

    LPCTSTR             GetVersion          (   void )  const;



    // General static helpers.



    static CString      BuildDefaultFileName(   void );



    static bool         IsFileNameValid     (   LPCTSTR             lpszFileName );



private:



    // Attributes.



    E7KFILEERROR        m_eLastError;



    HANDLE              m_hFile;

    CString             m_FileName;



    const char         *m_pszVersion;



    // Services.



                        C7kFile             (   const   C7kFile     &rRhs );        // Not implemented for now.

    C7kFile &           operator    =       (   const   C7kFile     &rRhs );        // Not implemented for now.



    bool                IsValidFileHandle   (   void ) const;

    bool                IsInvalidFileHandle (   void ) const;



    void                SetEndOfFile        (   void );

    void                SetBeginningOfFile  (   void );



};



#endif // !defined(AFX_7KFILE_H__814C7B7C_9BE1_4405_879B_7046C7CD91C0__INCLUDED_)