../
[+] accessible/
[+] dialogs/
[+] effects/
[+] graphicsview/
[+] itemviews/
[+] kernel/
[+] styles/
[+] util/
[+] widgets/

What is this ?

This is an online code browser that allows you to browse C/C++ code just like in your IDE, with semantic highlighting and contextual tooltips that show you the usages and cross references.
Open a C or C++ file and try it by hovering over the symbols!
Or take the feature tour.