CAtlFile Class

This class provides a thin wrapper around the Windows file-handling API.

Important

This class and its members cannot be used in applications that execute in the Windows Runtime.

class CAtlFile : public CHandle

Members

Public Constructors

Name	Description
CAtlFile::CAtlFile	The constructor.

Public Methods

Name	Description
CAtlFile::Create	Call this method to create or open a file.
CAtlFile::Flush	Call this method to clear the buffers for the file and cause all buffered data to be written to the file.
CAtlFile::GetOverlappedResult	Call this method to get the results of an overlapped operation on the file.
CAtlFile::GetPosition	Call this method to get the current file pointer position from the file.
CAtlFile::GetSize	Call this method to get the size in bytes of the file.
CAtlFile::LockRange	Call this method to lock a region in the file to prevent other processes from accessing it.
CAtlFile::Read	Call this method to read data from a file starting at the position indicated by the file pointer.
CAtlFile::Seek	Call this method to move the file pointer of the file.
CAtlFile::SetSize	Call this method to set the size of the file.
CAtlFile::UnlockRange	Call this method to unlock a region of the file.
CAtlFile::Write	Call this method to write data to the file starting at the position indicated by the file pointer.

Protected Data Members

Name	Description
CAtlFile::m_pTM	Pointer to CAtlTransactionManager object

Remarks

Use this class when file-handling needs are relatively simple, but more abstraction than the Windows API provides is required, without including MFC dependencies.

Inheritance Hierarchy

CHandle

CAtlFile

Requirements

Header: atlfile.h

See Also

Reference

CHandle Class

Concepts

Marquee Sample

Other Resources

ATL Class Overview