Programming Windows with MFC

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Programming Windows with MFC
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Chapter 6

• File I/O and Serialization

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CFile class

• Document saving and loading
• m_hFile
• Public data member
• Hold the handle of the file
• m_strFilename
• protected data member
• Hold the file name
• GetFilePath, GetFileName, and GetFileTitle
• CArchive objects

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Opening, Closing, and Creating Files

• CFileOpen
• CFileClose
• CFileRead
• CFileWrite

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CFileOpen

• CFile file
• if (file.Open (_T ("File.txt"),
  CFilemodeReadWrite))
• // It worked!

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CFiles constructor

• CFile file (_T ("File.txt"), CFilemodeReadWrite
  )
• try
• CFile file (_T ("File.txt"), CFilemodeReadWrit
  e)
• catch (CFileException e)
• // Something went wrong.
• e-gtReportError ()
• e-gtDelete ()

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CFile Sharing Mode
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CFile Access Mode
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The CFile family
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Serialization and the CArchive Class
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Serialization Basics

• The ltlt and gtgt operators
• Serialize variety of primitive data type,
  classes, and structures
• CArchive ar (file, CArchivestore)
• ar ltlt a ltlt b
• CArchive ar (file, CArchiveload)
• ar gtgt a gtgt b