|
The Microsoft Foundation Class Library (also Microsoft Foundation Classes or MFC) is a library that wraps portions of the Windows API in C++ classes, including functionality that enables them to use a default application framework. Classes are defined for many of the handle-managed Windows objects and also for predefined windows and common controls. == History == MFC was introduced in 1992 with Microsoft's ''C/C++ 7.0'' compiler for use with 16-bit versions of Windows as an extremely thin object-oriented C++ wrapper for the Windows API. C++ was just beginning to replace C for development of commercial application software at the time. In an MFC program, direct Windows API calls are rarely needed. Instead, programs create objects from Microsoft Foundation Class classes and call member functions belonging to those objects. Many of those functions share their names with corresponding API functions.〔(Visual C++ Express Overview )〕 One interesting quirk of MFC is the use of "Afx" as the prefix for many functions, macros and the standard precompiled header name "stdafx.h". During early development what became MFC was called "Application Framework Extensions" and abbreviated "Afx". The name Microsoft Foundation Classes (MFC) was adopted too late in the release cycle to change these references. MFC 8.0 was released with Visual Studio 2005. MFC 9.0 was released with Visual Studio 2008. MFC is not included in the free edition of Visual C++ Express but is included in the commercial versions of Visual C++ 2010 and later. The Object Windows Library (OWL), designed for use with Borland's Turbo C++ compiler, was a competing product introduced by Borland around the same time. Eventually, Borland discontinued OWL development and licensed the distribution of the MFC headers, libraries and DLLs from Microsoft〔(【引用サイトリンク】 title=Microsoft Buys Into Inprise, Settles Disputes )〕 for a short time, though it never offered fully integrated support for MFC. Borland later released VCL (Visual Component Library) to replace the OWL framework. Microsoft's emphasis on MFC has been reduced in favor of its .NET Framework. MFC 7, 8 and 9 bridge elements of MFC with the .NET Framework to aid developers in migrating to the new framework. The MSVC++ compiler backend can emit managed and native object file(s). The linker can then build them together, generating mixed (both managed and native) applications, allowing existing native applications to use managed extensions in a seamless manner. Though Microsoft has de-emphasized MFC, it remains a widely used framework. A lightweight alternative to MFC is the Windows Template Library (WTL). C++ Express version compiles WTL applications (if Active Template Library is installed), but does not include the IDE support of the Standard, Professional and Team editions. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Microsoft Foundation Class Library」の詳細全文を読む スポンサード リンク
|