/ / =========================================================================================================================================================================================== ========= //// Copyright (C) 2000-2004 iWise Technologies, Co. Ltd.///////product: IW988 // file: myfile.h // created : Tianda Sewed //// Description: // ValueAdded Main Program for IW988.// Contact: // Waterpub@mail.9cbs.net/ / / ============== ===================================================
#pragma overce
Class CMYFILE
{
PUBLIC:
CMYFILE ();
Virtual ~ CMYFILE
Void);
Bool Open (LPCTSTR LPSZFILENAME, UINT NOPENFLAGS);
// open a file
Uint Read (
Void * lpbuf, uint ncount);
// read the file
DWORD WRITE
Const
Void * lpbuf, uint ncount);
// write file
Handle getsafehandle ()
{
IF (! m_hfile)
Return NULL;
Return M_HFILE;
}
Virtual __int64 getLength ()
CONST;
// File size
Intclose ();
// Turn the file
Char * getFilename ();
// file name
Private:
Handle M_HFILE;
// file handle
CHAR * M_PFILENAME;
// Full file name
PUBLIC:
ENUM OPENMODE
{
ModeRead
=
1,
Modewrite
=
2
}
}
/ / =========================================================================================================================================================================================== ========= //// Copyright (C) 2000-2004 iWise Technologies, Co. Ltd.///////product: IW988 // file: myfile.cpp // created : Tianda Sewed //// Description: // ValueAdded Main Program for IW988.// Contact: // Waterpub@mail.9cbs.net/ / / ============== ============================================ # include
"Stdafx.h"
#include
"myfile.h"
#include
CMYFILE :: CMYFILE (): m_hfile (null), M_PFileName (NULL)
{
}
CMYFILE :: ~ CMYFILE
Void)
{
CLOSE ();
}
Bool CMYFILE :: Open (lpctstr lpszfilename, uint nopenflags)
{
CLOSE ();
DWORD DWDESIREDACCESS;
DWORD DWCREATIONDISPSITION;
Switch (Nopenflags)
{
Case ModeRead:
DwdesiredAccess
= Generic_read;
DWCREATIONDisPosition
= OPEN_EXISTING;
Break;
Case Modewrite:
DwdesiredAccess
= Generic_write;
DWCREATIONDisPosition
= OPEN_ALWAYS;
Break;
DEFAULT:
Assert (false);
}
Handle Hfile
= CREATEFILE (LPSZFILENAME, DWDESIREDACCESS,
0,
// Do not share
NULL, DWCREATIONDISPSION,
File_attribute_normal, null;
IF (HFile
! = INVALID_HANDLE_VALUE)
{
m_hfile
= HFILE;
M_PFileName
=
New
Char [Strlen (LPSZFileName)
1];
STRCPY (M_PFileName, LPSZFileName);
Return True;}
Else
{
Hfile
= NULL;
Return False;
}
}
INT CMYFILE :: Close ()
{
IF (m_hfile)
{
CloseHandle (M_HFILE);
m_hfile
= NULL;
}
IF (m_pfilename)
{
delete [] m_pfilename;
M_PFileName
= NULL;
}
Return
0;
}
Uint CMYFILE :: Read (
Void * LPBUF, UINT NCOUNT)
{
askERT (M_HFILE);
IF (m_hfile)
{
DWORD NNUMBEROFBYTESREAD;
IF (ReadFile (M_HFile, LPBUF, NCOUNT, & NNUMBEROFBYTESREAD, NULL)
{
Return (uint) nnumberofbytesread;
}
}
Return
0;
}
DWORD CMYFILE :: Write
Const
Void * LPBUF, UINT NCOUNT)
{
askERT (M_HFILE);
DWORD DWRECEIVE
=
0;
/ / The number of bytes actually written
IF (m_hfile)
{
Writefile (M_HFile, LPBUF, NCOUNT, & DWRECEIVE, NULL);
}
Return dwreceive;
}
__INT64 CMYFILE :: getLength ()
Const
{
IF (! m_hfile)
Return
0;
Ularge_integer Lisize
=
{
0,
0
}
Lisize.lowpart
= :: getFileSize (m_hfile, & lisize.highpart);
Return (__INT64) Lisize.quadpart;
}
Char * cmyfile :: getFilename ()
{
Return M_PFileName;
}
