NUMTEST3: Subclasses a Control Created by WNDCLASS Name

NUMTEST3 is one of three sample applications (NUMEDIT,
NUMTEST2, and NUMTEST3) that show how to use the
Microsoft(R) Foundation classes to subclass an edit
control in a dialog box.

Subclassing allows you to customize a window (or control)
without re-implementing it. The subclassing method you use
depends on how the window (or control) was created:

>  by CWnd::Create or CWnd::CreateEx
>  by ::CreateWindow or ::CreateWindowEx
>  by WNDCLASS name with ::CreateWindow or
::CreateWindowEx

NUMTEST3 demonstrates subclassing for the third method,
when the window or control is created by WNDCLASS name
with ::CreateWindow or ::CreateWindowEx.

NUMTEST3 is a companion sample for the "Subclassing
Windows Using the Microsoft Foundation Class Library"
technical article on the Microsoft Developer Network CD.

NUMTEST3 was built with Microsoft C/C++ version 7.0 and
the Microsoft Foundation Class Library version 1.0. The
sample application was tested under Microsoft Windows
version 3.1.

KEYWORDS: CD3
