@parabola: Dear ImGui: https://github.com/ocornut/imgui best ever editor GUI framework out there. In my case I use C++/CLI and not use ImGui.NET because that's binding to cimgui via P/Invokes which is a C complaint wrapper of ImGui. In English it means the GUI itself is also declared in C++, but the library is so nice to use you can do pretty good stuff in couple lines of code which would be incredibly painful in other frameworks.

Well there's the demo cpp you can consider that as a tutorial but for sort of step-by-step you'd need to check out the examples. I'm also planning to generalize the vvvv/FeralTic implementation but that just only means that one doesn't have to rewrite the vvvv/FeralTic boilerplate for all the projects. Gui would be still declared in C++.