By Shirley Wodtke
This booklet teaches introductory programmers who're already conversant in object-oriented programming and C++ the way to use the MFC library.
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This e-book teaches introductory programmers who're already conversant in object-oriented programming and C++ easy methods to use the MFC library.
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Additional resources for Learn the MFC C++ Classes
The CFrameWnd::Create() Function In the preceding program, the CFrameWnd::Create() function created the application’s main window with standard features as a result of the following line of code: Create (NULL, "Main Window A"); The first parameter specifies the default MFC-defined window registration class. Windows OS creates the window from a “registered class,” which means it will give the window the style, background color, cursor, and icon that are registered with the operating system. (The use of class here is entirely different than a C++ class.
The second example in this chapter presents a more complex menu, one where the main menu items and the submenus change as the program progresses. In this second example, you declare your menus to be objects of class CMenu and use inherited functions to modify submenus and to change the main menu. Finally, we look at the CWnd response functions for messages. Menus are used to let the user select one of a set of items. A menu is always associated with a main window. The main window “owns” the menu.
The central concept of a Windows OS application is its main window which displays the output of the application. The main window has a menu and can be designed with varying features. The user interacts with the application through keyboard presses and mouse clicks. The Windows OS sends messages to the application’s windows as a result of user inputs or other events. The MFC framework intercepts these messages, reads and interprets them, and forwards the relevant data as inputs to the application’s handler functions.