Wow! This has been a long chapter. Here, we looked at how Qt has come to have two graphics technologies—Qt Widgets and QML/QtQuick. We explored how to use both technologies, and how UIs are created both with code and with the Designer in Qt Creator. Next, we looked at a comparison between the two technologies.
We also uncovered two new requirements for our BigProject and used them to explore how we can combine both Qt Quick and Qt Widgets in the same program. We even learned one way to pass data from C++ into QML objects, something that will serve us well as we interface our embedded code with C and C++ device drivers and display the UI using Qt Quick.
In Chapter 7, Adding More Features, we will discover more requirements for BigProject that will require us to learn about using databases in Qt, designing with state machines, using web sockets, and even adding...