CWinApp is an application object provides member functions

for initializing your application (and each instance of it)

and for running the application.

Each application that uses the Microsoft Foundation classes

can only contain one object derived from CWinApp. This

object is constructed when other C++ global objects are

constructed and is already available when Windows calls the

WinMain function, which is supplied by the Microsoft

Foundation Class Library. Declare your derived CWinApp

object at the global level.

When you derive an application class from CWinApp, override

the InitInstance member function to create your

application's main window object.

In addition to the CWinApp member functions, the Microsoft

Foundation Class Library provides the following global

functions to access your CWinApp object and other global

information:

► AfxGetApp Obtains a pointer to the CWinApp object.

► AfxGetInstanceHandle Obtains a handle to the current

application instance.

► AfxGetResourceHandle Obtains a handle to the

application's resources.

► AfxGetAppName Obtains a pointer to a string containing

the application's name. Alternately, if you have a pointer

to the CWinApp object, use m_pszExeName to get the

application's name.