Developing Drivers with the Windows Driver Foundation (Pro Developer)

COM objects in general and UMDF drivers in particular are nearly always written in C++. This chapter assumes that you have a reasonable familiarity with object-oriented programming (OOP) in general and C++ programming in particular. You should understand basic concepts such as:

• Class structure: the struct and class keywords, public and private members, static methods, constructors, destructors, and pure abstract classes.

• Object creation and destruction by using the new and delete operators.

• Inheritance, including base and derived classes, multiple inheritance, and pure virtual methods.

If you are new to C++ programming, you should become familiar with these basic topics. Other aspects of C++, such as operator overloading or templates, are not necessary for UMDF drivers. UMDF drivers can use standard C++ template libraries, such as the Standard Template Library (STL) or Active Template Library (ATL), but these libraries are not required and are not used in the samples in this chapter.