Microsoft Foundation Classes Win32 Application Programming Interface (Win32 API) thousands of C functions: graphics, networking, database, interapplication communications Microsoft Foundation Class (MFC) C++ library of classes that wrap the C function of Win32 API

Windows Programming in MFC event-driven programming model Graphical User Interface (GUI) event mouse click, push button, drag, system failure, … event handler the system queues up events and then dispatches them to procedures known as event handlers callback procedure initialization phase

Event loop example while (theApp.isRunning()) { Event e = nextEvent(); unsigned id = e.getId(); switch (id) { case Event_SingleMouseClick(e); theApp.handleSingleMouseClick(e); break; case Event_DoubleMouseClick(e); theApp.handleDoubleMouseClick(e); case Event_ButtonPush; theApp.handleButtonPush(e); //... other events;

Event loop example – cont. default: ignoreEvent(e); break; }

code generator for MFC AppWizard ClassWizard create project with MFC AppWizard consists of headers (.h files), implementation files (.cpp files), graphics resource file (.rc files), etc… ClassWizard

Document/View architecture VC++ has two main subtypes document/view application dialog-based application document/view architecture model comprises the application’s data view the user’s interface to the model controller handle events generated through the application’s view

Document/View architecture MFC suppose two subtypes of document /view applications single document interface (SDI) multiple document interface (MDI) classes generated by MFC AppWizard CxxxApp (xxx : project name) handle application initialization the programmer often does not change this class

classes generated by MFC AppWizard CxxxDoc represent application’s document (i.e., data) add data and methods to this class CxxxView represent application’s view and controller add callback functions to the class CMainFrame represent the framed windows used often does not change this class

document serialization serialize virtual method to save an object in a standard binary format serializing an object out (i.e., write it to a file) serializing an object in (i.e., read it from a file) sample application: document serialization p. 489