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◄CException►                                  ◄Up► ◄Contents► ◄Index► ◄Back►
──Microsoft Foundation Classes──────────────────────────────────────────────
 
  Description
 
  A CFileException object represents a file-related exception condition.
  The CFileException class includes public data members that hold the
  portable cause code and the operating-system-specific error number. The
  class also provides static member functions for throwing file exceptions
  and for returning cause codes for both operating-system errors and C
  run-time errors.
 
  #include <afx.h>
 
  See Also
 
  ◄CFile►, Chapter 5, "◄Exception Processing►"
 
  Comments
 
  CFileException objects are constructed and thrown in CFile member
  functions and in member functions of derived classes. You can access
  these objects within the scope of a CATCH expression. For portability,
  use only the cause code to get the reason for an exception.
 
  Public Members
 
  Data Members
 
  ◄m_cause►      Contains portable code corresponding to the exception
                 cause.
 
  ◄m_lOsError►   Contains the related operating-system error number.
 
  Construction/Destruction
 
  ◄CFileException►   Constructs a CFileException object.
 
  Code Conversion
 
  ◄OsErrorToException►   Returns a cause code corresponding to an MS-DOS
                         error code.
 
  ◄ErrnoToException►     Returns cause code corresponding to a run-time
                         error number.
 
  Helper Functions
 
  ◄ThrowOsError►   Throws a file exception based on an operating-system
                   error number.
 
  ◄ThrowErrno►     Throws a file exception based on a run-time error
                   number.
 
 
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