New MFC Classes

The new MFC classes since Visual C++ 4.0 include Internet server classes and other new MFC classes. These other classes are listed here:

• CDockState   A CObject class that can hold the state of a number of control bars. You can save the state to and load the state from the registry, an INI file, or the binary contents of a CArchive object.
  
  
• CRecentFileList   A CObject class that supports the most recently used (MRU) file list.
  
  
• CSharedFile   A CMemFile class that supports RAM-based shared memory files for fast temporary storage and for transferring raw bytes or serialized objects between independent processes.

Win32 Internet Programming

• CInternetSession creates and initializes one Internet session or several simultaneous Internet sessions and, if necessary, describes the connection to a proxy server.
  
  
• CInternetConnection manages your connection to an Internet server.
  
  
• CInternetFile and its derived classes allow access to files on remote systems that use Internet protocols.
  
  
• CHttpConnection manages your connection to an HTTP server.
  
  
• CHttpFile provides the functionality to find and read files on an HTTP server.
  
  
• CGopherFile provides the functionality to find and read files on a gopher server.
  
  
• CFtpConnection manages your connection to an FTP server.
  
  
• CGopherConnection manages your connection to a gopher server.
  
  
• CFileFind performs local and Internet file searches.
  
  
• CFtpFileFind aids in Internet file searches of FTP servers.
  
  
• CGopherFileFind aids in Internet file searches of gopher servers.
  
  
• CGopherLocator gets a gopher "locator" from a gopher server, determines the locator's type, and makes the locator available to CGopherFileFind.
  
  
• CInternetException represents an exception condition related to an Internet operation.

Active Documents

• CDocObjectServer maps the DocObject interfaces, and initializes and activates an Active document.
  
  
• CDocObjectServerItem implements OLE server verbs specifically for Active document servers.

ActiveX Controls

• CMonikerFile takes a moniker, or a string representation that it can make into a moniker, and binds it synchronously to the stream for which the moniker is a name.
  
  
• CAsyncMonikerFile works similarly to CMonikerFile; however, it binds the moniker asynchronously to the stream for which the moniker is a name.
  
  
• CDataPathProperty implements an OLE control property that can be loaded asynchronously.
  
  
• CCachedDataPathProperty implements an OLE control property transferred asynchronously and cached in a memory file.
  
  
• COleCmdUI allows a DocObject to receive commands that originate in its container's user interface (such as FileNew, Open, Print, and so on), and allows a container to receive commands that originate in the DocObject's user interface.
  
  
• COleSafeArray works with arrays of arbitrary type and dimension.
  
  
• COleControl now includes the following member functions for implementing ActiveX controls:

  ClientToParent	ClipCaretRect	GetActivationPolicy
  GetCapture	GetClientOffset	GetClientRect
  GetControlFlags	GetDC	GetFocus
  GetWindowlessDropTarget	InvalidateRgn	OnGetNaturalExtent
  OnGetViewExtent	OnGetViewRect	OnGetViewStatus
  OnInactiveMouseMove	OnInactiveSetCursor	OnQueryHitPoint
  OnQueryHitRect	OnWindowlessMessage	ParentToClient
  ReleaseCapture	ReleaseDC	ResetStockProps
  ResetVersion	ScrollWindow	SerializeExtent
  SerializeStockProps	SerializeVersion	SetCapture
  SetFocus

  
  

Database Programming

• CDBVariant allows you to store a value without worrying about the value’s data type. CDBVariant tracks the data type of the current value, which is stored in a union.
  
  
• CRecordset includes 17 new member functions that enhance functionality and provide support for bookmarks and bulk row fetching.

  CanBookmark	CancelUpdate	CheckRowsetError
  DoBulkFieldExchange	FlushResultSet	GetBookmark
  GetFieldValue	GetODBCFieldCount	GetODBCFieldInfo
  GetRowsetSize	GetRowsFetched	GetRowStatus
  RefreshRowset	SetAbsolutePosition	SetBookmark
  SetRowsetCursorPosition	SetRowsetSize

  
  
• CDatabase includes four new member related to transactions, bookmarks, and connecting to a data source:

  GetCursorCommitBehavior	GetCursorRollbackBehavior
  GetBookmarkPersistence	OpenEx

  
  

Data Binding

• CWnd includes four new member functions that implement data binding functionality:

  GetDSCCursor	BindDefaultProperty
  BindProperty	OnDSCNotify