CDummyFile : CFile

$Revision: 24 $

Description

This class intercepts all calls to functions in CFile that would blow up if what your file HANDLE doesn't point to a file on a disk drive (like a TCP/IP socket or the serial port). It also adds a couple of useful functions that should have been in CFile (IMHO).

Data Members

None.

Methods

void Abort( void ): Closes the file.
void Close( void ): Closes the file.
void Flush( void ): Flushes file buffers.
DWORD GetErrorCode( void ) const: Retrieves the error code if a function fails or returns FALSE.
DWORD GetLength( void ) const: Makes no sense if you don't have a disk file. It always returns zero.
DWORD GetPosition( void ) const: Makes no sense. Always returns zero.
BOOL GetStatus( CFileStatus& status ) BOOL GetStatus( LPCTSTR filename, CFileStatus& status ): Makes no sense.
void LockRange( DWORD position, DWORD count ): Makes no sense.
void Remove( LPCTSTR filename ): Makes no sense. Always returns FALSE.
void Rename( LPCTSTR old_filename, LPCTSTR new_filename ): Makes no sense.
LONG Seek( LONG offset, UINT from ): Makes no sense. Always returns zero.
void Serialize( CArchive& archive ): Saves/restores the object.
void SetLength( DWORD length ): Makes no sense.
void SetStatus( LPCTSTR name, CFileStatus& status ): Makes no sense.
void UnlockRange( DWORD position, DWORD count ): Makes no sense.
void Write( const CString& string_to_write ) void Write( const CByteArray& data_to_write ): Adds capability to write a CString or a CByteArray.

Example

Sorry.

Copyright, 2000, Samuel R. Blackburn
$Workfile: dumyfile.cpp $
$Modtime: 1/05/00 3:37a $