In this chapter, we explored the details of the GTK+ toolkit and how it is made available to Go through go-GTK. We looked at how to get it set up on macOS, Windows, and Linux and how the applications look and behave exactly the same across these platforms. We explored the API design, its various components, and how its event driven model is exposed to developers.
We then returned to the GoMail application from Chapter 4, Walk - Building Graphical Windows Applications, and Chapter 5, andlabs UI - Cross-Platform Native UIs, rebuilding it using the Go-GTK library. As the API provides access to most GTK+ features, we found that the application looks more complete than the GTK+ based application created by the Linux driver within andlabs UI used in Chapter 5, andlabs UI - Cross-Platform Native UIs. We implemented some basic thread and signal handling within the application...
