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Unicode

MFC supports the Unicode standard for encoding wide characters on Windows NT, Windows 2000, and Windows XP platforms. Unicode applications cannot run on Windows 98 platforms.

Note   The Unicode versions of the MFC libraries are not copied to your hard drive unless you select them during a Custom installation. They are not copied during other types of installation. If you attempt to build or run an MFC Unicode application without the MFC Unicode files, you may get errors.
To copy the files to your hard drive, rerun Setup and click Add/Remove Features. Expand the feature tree Language Tools, then Visual C++, then Visual C++ Class & Template Libraries, and select both ATL MFC Shared Libraries Unicode and ATL MFC Static Libraries Unicode.

The Unicode versions of the MFC libraries are described below:

Static Link Libraries

Release Debug Description
UAFXCW.lib,
.pdb
UAFXCWD.lib,
.pdb
Unicode MFC static link library

Dynamic-Link Libraries

Release Debug Description
MFC71U.lib,
.dbg, def, .dll, .map, .pdb, .prf
MFC71UD.lib,
.def, .dll, .map, .pdb
Unicode MFC import library
(see notes below for explanation of file extensions)
  MFCD71UD.lib,
.def, .dll, .map, .pdb
Unicode MFC import library for database
  MFCN71UD.lib,
.def, .dll, .map, .pdb
Unicode MFC import library for network (sockets)
  MFCO71UD.lib,
.def, .dll, .map, .pdb
Unicode MFC DLL for Active technologies
MFCS71U.lib,
.pdb
MFCS71UD.lib,
.pdb
Unicode MFC import library containing code that must be statically linked in an application or DLL

File Types

  • Import library files have the extension (.lib).
  • Dynamic-link library files have the extension (.dll).
  • Module definition (.def) files are text files that contain statements for defining an .exe or .dll.
  • Map (.map) files are text files that contain information that the linker uses when linking a program.
  • Library (.lib) files are used in conjunction with the DLL versions of MFC. These files contain code that must be statically linked in the application or DLL.
  • Program database (.pdb) files contain debugging and project state information.
  • Debug (.dbg) files contain information (COFF FPO, and CodeView) that the Visual C++ Debugger uses.

For detailed information on naming conventions, see Naming Conventions for MFC DLLs and Library Naming Conventions.

For information on using Unicode with MFC, see International Programming and Strings: Unicode and Multibyte Character Set (MBCS) Support.

See Also

MFC | General MFC Topics |

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