CInternetFile Class

發行項
04/28/2015

Allows access to files on remote systems that use Internet protocols.

class CInternetFile : public CStdioFile

Members

Protected Constructors

Name	Description
CInternetFile::CInternetFile	Constructs a CInternetFile object.

Public Methods

Name	Description
CInternetFile::Abort	Closes the file, ignoring all warnings and errors.
CInternetFile::Close	Closes a CInternetFile and frees its resources.
CInternetFile::Flush	Flushes the contents of the write buffer and makes sure the data in memory is written to the target machine.
CInternetFile::GetLength	Returns the size of the file.
CInternetFile::Read	Reads the number of specified bytes.
CInternetFile::ReadString	Reads a stream of characters.
CInternetFile::Seek	Repositions the pointer in an open file.
CInternetFile::SetReadBufferSize	Sets the size of the buffer where data will be read.
CInternetFile::SetWriteBufferSize	Sets the size of the buffer where data will be written.
CInternetFile::Write	Writes the number of specified bytes.
CInternetFile::WriteString	Writes a null-terminated string to a file.

Public Operators

Name	Description
CInternetFile::operator HINTERNET	A casting operator for an Internet handle.

Protected Data Members

Name	Description
CInternetFile::m_hFile	A handle to a file.

Remarks

Provides a base class for the CHttpFile and CGopherFile file classes. You never create a CInternetFile object directly. Instead, create an object of one of its derived classes by calling CGopherConnection::OpenFile or CHttpConnection::OpenRequest. You also can create a CInternetFile object by calling CFtpConnection::OpenFile.

The CInternetFile member functions Open, LockRange, UnlockRange, and Duplicate are not implemented for CInternetFile. If you call these functions on a CInternetFile object, you will get a CNotSupportedException.

To learn more about how CInternetFile works with the other MFC Internet classes, see the article Internet Programming with WinInet.

Inheritance Hierarchy

CObject

CFile

CStdioFile

CInternetFile

Requirements

Header: afxinet.h

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