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CStdioFile Class

Represents a C run-time stream file as opened by the run-time function fopen.

class CStdioFile : public CFile

Name

Description

CStdioFile::CStdioFile

Constructs a CStdioFile object from a path or file pointer.

Name

Description

CStdioFile::Open

Overloaded. Open is designed for use with the default CStdioFile constructor (Overrides CFile::Open).

CStdioFile::ReadString

Reads a single line of text.

CStdioFile::Seek

Positions the current file pointer.

CStdioFile::WriteString

Writes a single line of text.

Name

Description

CStdioFile::m_pStream

Contains a pointer to an open file.

Stream files are buffered and can be opened in either text mode (the default) or binary mode.

Text mode provides special processing for carriage return–linefeed pairs. When you write a newline character (0x0A) to a text-mode CStdioFile object, the byte pair (0x0D, 0x0A) is sent to the file. When you read, the byte pair (0x0D, 0x0A) is translated to a single 0x0A byte.

The CFile functions Duplicate, LockRange, and UnlockRange are not supported for CStdioFile.

If you call these functions on a CStdioFile, you will get a CNotSupportedException.

For more information on using CStdioFile, see the articles Files in MFC and File Handling in the Run-Time Library Reference.

Header: afx.h

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