In this chapter, we learned about some key data structures of the Rx programming model. We implemented toy versions of them to familiarize us with the conceptual nuances underpinning them. We started with how GUI events were handled by Windows API, XLib API, MFC, and Qt. We briefly touched upon how events are handled in COM+/CORBA as well. Then, a quick overview of Reactive programming was given. After introducing some interfaces, we implemented them from scratch. Finally, a GUI version of these interfaces on top of MFC was implemented for the sake of completeness. We also dealt with the key philosophical aspects of the book.
In the next chapter, we will make a whirlwind tour of the key features of Modern C++ (C++ Versions 11/14/17) by emphasizing on move semantics, Lambdas, type inference, range-based loops, pipe-able operators, smart pointers, and so on. This is essential for writing even basic code for Reactive Programming.
