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CFile::Write

Writes data from a buffer to the file associated with the CFile object.

virtual void Write( 
   const void* lpBuf, 
   UINT nCount  
);

Parameters

  • lpBuf
    A pointer to the user-supplied buffer that contains the data to be written to the file.

  • nCount
    The number of bytes to be transferred from the buffer. For text-mode files, carriage return–linefeed pairs are counted as single characters.

Remarks

Write throws an exception in response to several conditions, including the disk-full condition.

Example

CFile cfile;
cfile.Open(_T("Write_File.dat"), CFile::modeCreate | 
    CFile::modeReadWrite);
char pbufWrite[100];
memset(pbufWrite, 'a', sizeof(pbufWrite));
cfile.Write(pbufWrite, 100);         
cfile.Flush();

In addition, see the examples for CFile::CFile and CFile::Open.

Requirements

Header: afx.h

See Also

Reference

CFile Class

Hierarchy Chart

CFile::Read

CStdioFile::WriteString

Other Resources

CFile Members